diff --git a/Documentation/devicetree/bindings/power_supply/power_supply.txt b/Documentation/devicetree/bindings/power_supply/power_supply.txt new file mode 100644 index 0000000..8391bfa --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/power_supply.txt @@ -0,0 +1,23 @@ +Power Supply Core Support + +Optional Properties: + - power-supplies : This property is added to a supply in order to list the + devices which supply it power, referenced by their phandles. + +Example: + + usb-charger: power@e { + compatible = "some,usb-charger"; + ... + }; + + ac-charger: power@c { + compatible = "some,ac-charger"; + ... + }; + + battery@b { + compatible = "some,battery"; + ... + power-supplies = <&usb-charger>, <&ac-charger>; + }; diff --git a/Documentation/devicetree/bindings/power_supply/tps65090.txt b/Documentation/devicetree/bindings/power_supply/tps65090.txt new file mode 100644 index 0000000..8e5e0d3 --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/tps65090.txt @@ -0,0 +1,17 @@ +TPS65090 Frontend PMU with Switchmode Charger + +Required Properties: +-compatible: "ti,tps65090-charger" + +Optional Properties: +-ti,enable-low-current-chrg: Enables charging when a low current is detected + while the default logic is to stop charging. + +This node is a subnode of the tps65090 PMIC. + +Example: + + tps65090-charger { + compatible = "ti,tps65090-charger"; + ti,enable-low-current-chrg; + }; diff --git a/Documentation/hwmon/ab8500 b/Documentation/hwmon/ab8500 new file mode 100644 index 0000000..cf169c8 --- /dev/null +++ b/Documentation/hwmon/ab8500 @@ -0,0 +1,22 @@ +Kernel driver ab8500 +==================== + +Supported chips: + * ST-Ericsson AB8500 + Prefix: 'ab8500' + Addresses scanned: - + Datasheet: http://www.stericsson.com/developers/documentation.jsp + +Authors: + Martin Persson + Hongbo Zhang + +Description +----------- + +See also Documentation/hwmon/abx500. This is the ST-Ericsson AB8500 specific +driver. + +Currently only the AB8500 internal sensor and one external sensor for battery +temperature are monitored. Other GPADC channels can also be monitored if needed +in future. diff --git a/Documentation/hwmon/abx500 b/Documentation/hwmon/abx500 new file mode 100644 index 0000000..319a058 --- /dev/null +++ b/Documentation/hwmon/abx500 @@ -0,0 +1,28 @@ +Kernel driver abx500 +==================== + +Supported chips: + * ST-Ericsson ABx500 series + Prefix: 'abx500' + Addresses scanned: - + Datasheet: http://www.stericsson.com/developers/documentation.jsp + +Authors: + Martin Persson + Hongbo Zhang + +Description +----------- + +Every ST-Ericsson Ux500 SOC consists of both ABx500 and DBx500 physically, +this is kernel hwmon driver for ABx500. + +There are some GPADCs inside ABx500 which are designed for connecting to +thermal sensors, and there is also a thermal sensor inside ABx500 too, which +raises interrupt when critical temperature reached. + +This abx500 is a common layer which can monitor all of the sensors, every +specific abx500 chip has its special configurations in its own file, e.g. some +sensors can be configured invisible if they are not available on that chip, and +the corresponding gpadc_addr should be set to 0, thus this sensor won't be +polled. diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index 52d315b..0f1c5e5 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -17,6 +17,9 @@ config ARCH_VEXPRESS select NO_IOPORT select PLAT_VERSATILE select PLAT_VERSATILE_CLCD + select POWER_RESET + select POWER_RESET_VEXPRESS + select POWER_SUPPLY select REGULATOR_FIXED_VOLTAGE if REGULATOR select VEXPRESS_CONFIG help diff --git a/arch/arm/mach-vexpress/Makefile b/arch/arm/mach-vexpress/Makefile index 80b6497..42703e8 100644 --- a/arch/arm/mach-vexpress/Makefile +++ b/arch/arm/mach-vexpress/Makefile @@ -4,7 +4,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \ -I$(srctree)/arch/arm/plat-versatile/include -obj-y := v2m.o reset.o +obj-y := v2m.o obj-$(CONFIG_ARCH_VEXPRESS_CA9X4) += ct-ca9x4.o obj-$(CONFIG_SMP) += platsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index c5e20b5..eb2b3a6 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -363,8 +363,6 @@ static void __init v2m_init(void) for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++) amba_device_register(v2m_amba_devs[i], &iomem_resource); - pm_power_off = vexpress_power_off; - ct_desc->init_tile(); } @@ -376,7 +374,6 @@ MACHINE_START(VEXPRESS, "ARM-Versatile Express") .init_irq = v2m_init_irq, .init_time = v2m_timer_init, .init_machine = v2m_init, - .restart = vexpress_restart, MACHINE_END static struct map_desc v2m_rs1_io_desc __initdata = { @@ -470,7 +467,6 @@ static void __init v2m_dt_init(void) { l2x0_of_init(0x00400000, 0xfe0fffff); of_platform_populate(NULL, v2m_dt_bus_match, NULL, NULL); - pm_power_off = vexpress_power_off; } static const char * const v2m_dt_match[] __initconst = { @@ -487,5 +483,4 @@ DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") .init_irq = irqchip_init, .init_time = v2m_dt_timer_init, .init_machine = v2m_dt_init, - .restart = vexpress_restart, MACHINE_END diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index f61d98a..9c333d4 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -39,6 +39,19 @@ config HWMON_DEBUG_CHIP comment "Native drivers" +config SENSORS_AB8500 + tristate "AB8500 thermal monitoring" + depends on AB8500_GPADC && AB8500_BM + default n + help + If you say yes here you get support for the thermal sensor part + of the AB8500 chip. The driver includes thermal management for + AB8500 die and two GPADC channels. The GPADC channel are preferably + used to access sensors outside the AB8500 chip. + + This driver can also be built as a module. If so, the module + will be called abx500-temp. + config SENSORS_ABITUGURU tristate "Abit uGuru (rev 1 & 2)" depends on X86 && DMI diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index c51b0dc..d17d3e6 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_SENSORS_W83795) += w83795.o obj-$(CONFIG_SENSORS_W83781D) += w83781d.o obj-$(CONFIG_SENSORS_W83791D) += w83791d.o +obj-$(CONFIG_SENSORS_AB8500) += abx500.o ab8500.o obj-$(CONFIG_SENSORS_ABITUGURU) += abituguru.o obj-$(CONFIG_SENSORS_ABITUGURU3)+= abituguru3.o obj-$(CONFIG_SENSORS_AD7314) += ad7314.o diff --git a/drivers/hwmon/ab8500.c b/drivers/hwmon/ab8500.c new file mode 100644 index 0000000..d844dc8 --- /dev/null +++ b/drivers/hwmon/ab8500.c @@ -0,0 +1,206 @@ +/* + * Copyright (C) ST-Ericsson 2010 - 2013 + * Author: Martin Persson + * Hongbo Zhang + * License Terms: GNU General Public License v2 + * + * When the AB8500 thermal warning temperature is reached (threshold cannot + * be changed by SW), an interrupt is set, and if no further action is taken + * within a certain time frame, pm_power off will be called. + * + * When AB8500 thermal shutdown temperature is reached a hardware shutdown of + * the AB8500 will occur. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "abx500.h" + +#define DEFAULT_POWER_OFF_DELAY (HZ * 10) +#define THERMAL_VCC 1800 +#define PULL_UP_RESISTOR 47000 +/* Number of monitored sensors should not greater than NUM_SENSORS */ +#define NUM_MONITORED_SENSORS 4 + +struct ab8500_gpadc_cfg { + const struct abx500_res_to_temp *temp_tbl; + int tbl_sz; + int vcc; + int r_up; +}; + +struct ab8500_temp { + struct ab8500_gpadc *gpadc; + struct ab8500_btemp *btemp; + struct delayed_work power_off_work; + struct ab8500_gpadc_cfg cfg; + struct abx500_temp *abx500_data; +}; + +/* + * The hardware connection is like this: + * VCC----[ R_up ]-----[ NTC ]----GND + * where R_up is pull-up resistance, and GPADC measures voltage on NTC. + * and res_to_temp table is strictly sorted by falling resistance values. + */ +static int ab8500_voltage_to_temp(struct ab8500_gpadc_cfg *cfg, + int v_ntc, int *temp) +{ + int r_ntc, i = 0, tbl_sz = cfg->tbl_sz; + const struct abx500_res_to_temp *tbl = cfg->temp_tbl; + + if (cfg->vcc < 0 || v_ntc >= cfg->vcc) + return -EINVAL; + + r_ntc = v_ntc * cfg->r_up / (cfg->vcc - v_ntc); + if (r_ntc > tbl[0].resist || r_ntc < tbl[tbl_sz - 1].resist) + return -EINVAL; + + while (!(r_ntc <= tbl[i].resist && r_ntc > tbl[i + 1].resist) && + i < tbl_sz - 2) + i++; + + /* return milli-Celsius */ + *temp = tbl[i].temp * 1000 + ((tbl[i + 1].temp - tbl[i].temp) * 1000 * + (r_ntc - tbl[i].resist)) / (tbl[i + 1].resist - tbl[i].resist); + + return 0; +} + +static int ab8500_read_sensor(struct abx500_temp *data, u8 sensor, int *temp) +{ + int voltage, ret; + struct ab8500_temp *ab8500_data = data->plat_data; + + if (sensor == BAT_CTRL) { + *temp = ab8500_btemp_get_batctrl_temp(ab8500_data->btemp); + } else if (sensor == BTEMP_BALL) { + *temp = ab8500_btemp_get_temp(ab8500_data->btemp); + } else { + voltage = ab8500_gpadc_convert(ab8500_data->gpadc, sensor); + if (voltage < 0) + return voltage; + + ret = ab8500_voltage_to_temp(&ab8500_data->cfg, voltage, temp); + if (ret < 0) + return ret; + } + + return 0; +} + +static void ab8500_thermal_power_off(struct work_struct *work) +{ + struct ab8500_temp *ab8500_data = container_of(work, + struct ab8500_temp, power_off_work.work); + struct abx500_temp *abx500_data = ab8500_data->abx500_data; + + dev_warn(&abx500_data->pdev->dev, "Power off due to critical temp\n"); + + pm_power_off(); +} + +static ssize_t ab8500_show_name(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + return sprintf(buf, "ab8500\n"); +} + +static ssize_t ab8500_show_label(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + char *label; + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int index = attr->index; + + switch (index) { + case 1: + label = "ext_adc1"; + break; + case 2: + label = "ext_adc2"; + break; + case 3: + label = "bat_temp"; + break; + case 4: + label = "bat_ctrl"; + break; + default: + return -EINVAL; + } + + return sprintf(buf, "%s\n", label); +} + +static int ab8500_temp_irq_handler(int irq, struct abx500_temp *data) +{ + struct ab8500_temp *ab8500_data = data->plat_data; + + dev_warn(&data->pdev->dev, "Power off in %d s\n", + DEFAULT_POWER_OFF_DELAY / HZ); + + schedule_delayed_work(&ab8500_data->power_off_work, + DEFAULT_POWER_OFF_DELAY); + return 0; +} + +int abx500_hwmon_init(struct abx500_temp *data) +{ + struct ab8500_temp *ab8500_data; + + ab8500_data = devm_kzalloc(&data->pdev->dev, sizeof(*ab8500_data), + GFP_KERNEL); + if (!ab8500_data) + return -ENOMEM; + + ab8500_data->gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + if (IS_ERR(ab8500_data->gpadc)) + return PTR_ERR(ab8500_data->gpadc); + + ab8500_data->btemp = ab8500_btemp_get(); + if (IS_ERR(ab8500_data->btemp)) + return PTR_ERR(ab8500_data->btemp); + + INIT_DELAYED_WORK(&ab8500_data->power_off_work, + ab8500_thermal_power_off); + + ab8500_data->cfg.vcc = THERMAL_VCC; + ab8500_data->cfg.r_up = PULL_UP_RESISTOR; + ab8500_data->cfg.temp_tbl = ab8500_temp_tbl_a_thermistor; + ab8500_data->cfg.tbl_sz = ab8500_temp_tbl_a_size; + + data->plat_data = ab8500_data; + + /* + * ADC_AUX1 and ADC_AUX2, connected to external NTC + * BTEMP_BALL and BAT_CTRL, fixed usage + */ + data->gpadc_addr[0] = ADC_AUX1; + data->gpadc_addr[1] = ADC_AUX2; + data->gpadc_addr[2] = BTEMP_BALL; + data->gpadc_addr[3] = BAT_CTRL; + data->monitored_sensors = NUM_MONITORED_SENSORS; + + data->ops.read_sensor = ab8500_read_sensor; + data->ops.irq_handler = ab8500_temp_irq_handler; + data->ops.show_name = ab8500_show_name; + data->ops.show_label = ab8500_show_label; + data->ops.is_visible = NULL; + + return 0; +} +EXPORT_SYMBOL(abx500_hwmon_init); + +MODULE_AUTHOR("Hongbo Zhang "); +MODULE_DESCRIPTION("AB8500 temperature driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/abx500.c b/drivers/hwmon/abx500.c new file mode 100644 index 0000000..b4ad87b --- /dev/null +++ b/drivers/hwmon/abx500.c @@ -0,0 +1,491 @@ +/* + * Copyright (C) ST-Ericsson 2010 - 2013 + * Author: Martin Persson + * Hongbo Zhang + * License Terms: GNU General Public License v2 + * + * ABX500 does not provide auto ADC, so to monitor the required temperatures, + * a periodic work is used. It is more important to not wake up the CPU than + * to perform this job, hence the use of a deferred delay. + * + * A deferred delay for thermal monitor is considered safe because: + * If the chip gets too hot during a sleep state it's most likely due to + * external factors, such as the surrounding temperature. I.e. no SW decisions + * will make any difference. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "abx500.h" + +#define DEFAULT_MONITOR_DELAY HZ +#define DEFAULT_MAX_TEMP 130 + +static inline void schedule_monitor(struct abx500_temp *data) +{ + data->work_active = true; + schedule_delayed_work(&data->work, DEFAULT_MONITOR_DELAY); +} + +static void threshold_updated(struct abx500_temp *data) +{ + int i; + for (i = 0; i < data->monitored_sensors; i++) + if (data->max[i] != 0 || data->min[i] != 0) { + schedule_monitor(data); + return; + } + + dev_dbg(&data->pdev->dev, "No active thresholds.\n"); + cancel_delayed_work_sync(&data->work); + data->work_active = false; +} + +static void gpadc_monitor(struct work_struct *work) +{ + int temp, i, ret; + char alarm_node[30]; + bool updated_min_alarm, updated_max_alarm; + struct abx500_temp *data; + + data = container_of(work, struct abx500_temp, work.work); + mutex_lock(&data->lock); + + for (i = 0; i < data->monitored_sensors; i++) { + /* Thresholds are considered inactive if set to 0 */ + if (data->max[i] == 0 && data->min[i] == 0) + continue; + + if (data->max[i] < data->min[i]) + continue; + + ret = data->ops.read_sensor(data, data->gpadc_addr[i], &temp); + if (ret < 0) { + dev_err(&data->pdev->dev, "GPADC read failed\n"); + continue; + } + + updated_min_alarm = false; + updated_max_alarm = false; + + if (data->min[i] != 0) { + if (temp < data->min[i]) { + if (data->min_alarm[i] == false) { + data->min_alarm[i] = true; + updated_min_alarm = true; + } + } else { + if (data->min_alarm[i] == true) { + data->min_alarm[i] = false; + updated_min_alarm = true; + } + } + } + if (data->max[i] != 0) { + if (temp > data->max[i]) { + if (data->max_alarm[i] == false) { + data->max_alarm[i] = true; + updated_max_alarm = true; + } + } else if (temp < data->max[i] - data->max_hyst[i]) { + if (data->max_alarm[i] == true) { + data->max_alarm[i] = false; + updated_max_alarm = true; + } + } + } + + if (updated_min_alarm) { + ret = sprintf(alarm_node, "temp%d_min_alarm", i + 1); + sysfs_notify(&data->pdev->dev.kobj, NULL, alarm_node); + } + if (updated_max_alarm) { + ret = sprintf(alarm_node, "temp%d_max_alarm", i + 1); + sysfs_notify(&data->pdev->dev.kobj, NULL, alarm_node); + } + } + + schedule_monitor(data); + mutex_unlock(&data->lock); +} + +/* HWMON sysfs interfaces */ +static ssize_t show_name(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct abx500_temp *data = dev_get_drvdata(dev); + /* Show chip name */ + return data->ops.show_name(dev, devattr, buf); +} + +static ssize_t show_label(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct abx500_temp *data = dev_get_drvdata(dev); + /* Show each sensor label */ + return data->ops.show_label(dev, devattr, buf); +} + +static ssize_t show_input(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + int ret, temp; + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + u8 gpadc_addr = data->gpadc_addr[attr->index]; + + ret = data->ops.read_sensor(data, gpadc_addr, &temp); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", temp); +} + +/* Set functions (RW nodes) */ +static ssize_t set_min(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + unsigned long val; + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int res = kstrtol(buf, 10, &val); + if (res < 0) + return res; + + val = clamp_val(val, 0, DEFAULT_MAX_TEMP); + + mutex_lock(&data->lock); + data->min[attr->index] = val; + threshold_updated(data); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t set_max(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + unsigned long val; + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int res = kstrtol(buf, 10, &val); + if (res < 0) + return res; + + val = clamp_val(val, 0, DEFAULT_MAX_TEMP); + + mutex_lock(&data->lock); + data->max[attr->index] = val; + threshold_updated(data); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t set_max_hyst(struct device *dev, + struct device_attribute *devattr, + const char *buf, size_t count) +{ + unsigned long val; + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int res = kstrtoul(buf, 10, &val); + if (res < 0) + return res; + + val = clamp_val(val, 0, DEFAULT_MAX_TEMP); + + mutex_lock(&data->lock); + data->max_hyst[attr->index] = val; + threshold_updated(data); + mutex_unlock(&data->lock); + + return count; +} + +/* Show functions (RO nodes) */ +static ssize_t show_min(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return sprintf(buf, "%ld\n", data->min[attr->index]); +} + +static ssize_t show_max(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return sprintf(buf, "%ld\n", data->max[attr->index]); +} + +static ssize_t show_max_hyst(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return sprintf(buf, "%ld\n", data->max_hyst[attr->index]); +} + +static ssize_t show_min_alarm(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return sprintf(buf, "%d\n", data->min_alarm[attr->index]); +} + +static ssize_t show_max_alarm(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct abx500_temp *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return sprintf(buf, "%d\n", data->max_alarm[attr->index]); +} + +static mode_t abx500_attrs_visible(struct kobject *kobj, + struct attribute *attr, int n) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct abx500_temp *data = dev_get_drvdata(dev); + + if (data->ops.is_visible) + return data->ops.is_visible(attr, n); + + return attr->mode; +} + +/* Chip name, required by hwmon */ +static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); + +/* GPADC - SENSOR1 */ +static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_label, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_input, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_min, set_min, 0); +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_max, set_max, 0); +static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, + show_max_hyst, set_max_hyst, 0); +static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_min_alarm, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_max_alarm, NULL, 0); + +/* GPADC - SENSOR2 */ +static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, show_label, NULL, 1); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_input, NULL, 1); +static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_min, set_min, 1); +static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_max, set_max, 1); +static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IWUSR | S_IRUGO, + show_max_hyst, set_max_hyst, 1); +static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_min_alarm, NULL, 1); +static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_max_alarm, NULL, 1); + +/* GPADC - SENSOR3 */ +static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, show_label, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_input, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_min, set_min, 2); +static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_max, set_max, 2); +static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IWUSR | S_IRUGO, + show_max_hyst, set_max_hyst, 2); +static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_min_alarm, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_max_alarm, NULL, 2); + +/* GPADC - SENSOR4 */ +static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, show_label, NULL, 3); +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_input, NULL, 3); +static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_min, set_min, 3); +static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_max, set_max, 3); +static SENSOR_DEVICE_ATTR(temp4_max_hyst, S_IWUSR | S_IRUGO, + show_max_hyst, set_max_hyst, 3); +static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO, show_min_alarm, NULL, 3); +static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, show_max_alarm, NULL, 3); + +struct attribute *abx500_temp_attributes[] = { + &sensor_dev_attr_name.dev_attr.attr, + + &sensor_dev_attr_temp1_label.dev_attr.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, + + &sensor_dev_attr_temp2_label.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, + + &sensor_dev_attr_temp3_label.dev_attr.attr, + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp3_min.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, + + &sensor_dev_attr_temp4_label.dev_attr.attr, + &sensor_dev_attr_temp4_input.dev_attr.attr, + &sensor_dev_attr_temp4_min.dev_attr.attr, + &sensor_dev_attr_temp4_max.dev_attr.attr, + &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, + NULL +}; + +static const struct attribute_group abx500_temp_group = { + .attrs = abx500_temp_attributes, + .is_visible = abx500_attrs_visible, +}; + +static irqreturn_t abx500_temp_irq_handler(int irq, void *irq_data) +{ + struct platform_device *pdev = irq_data; + struct abx500_temp *data = platform_get_drvdata(pdev); + + data->ops.irq_handler(irq, data); + return IRQ_HANDLED; +} + +static int setup_irqs(struct platform_device *pdev) +{ + int ret; + int irq = platform_get_irq_byname(pdev, "ABX500_TEMP_WARM"); + + if (irq < 0) { + dev_err(&pdev->dev, "Get irq by name failed\n"); + return irq; + } + + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + abx500_temp_irq_handler, IRQF_NO_SUSPEND, "abx500-temp", pdev); + if (ret < 0) + dev_err(&pdev->dev, "Request threaded irq failed (%d)\n", ret); + + return ret; +} + +static int abx500_temp_probe(struct platform_device *pdev) +{ + struct abx500_temp *data; + int err; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->pdev = pdev; + mutex_init(&data->lock); + + /* Chip specific initialization */ + err = abx500_hwmon_init(data); + if (err < 0 || !data->ops.read_sensor || !data->ops.show_name || + !data->ops.show_label) + return err; + + INIT_DEFERRABLE_WORK(&data->work, gpadc_monitor); + + platform_set_drvdata(pdev, data); + + err = sysfs_create_group(&pdev->dev.kobj, &abx500_temp_group); + if (err < 0) { + dev_err(&pdev->dev, "Create sysfs group failed (%d)\n", err); + return err; + } + + data->hwmon_dev = hwmon_device_register(&pdev->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + dev_err(&pdev->dev, "Class registration failed (%d)\n", err); + goto exit_sysfs_group; + } + + if (data->ops.irq_handler) { + err = setup_irqs(pdev); + if (err < 0) + goto exit_hwmon_reg; + } + return 0; + +exit_hwmon_reg: + hwmon_device_unregister(data->hwmon_dev); +exit_sysfs_group: + sysfs_remove_group(&pdev->dev.kobj, &abx500_temp_group); + return err; +} + +static int abx500_temp_remove(struct platform_device *pdev) +{ + struct abx500_temp *data = platform_get_drvdata(pdev); + + cancel_delayed_work_sync(&data->work); + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&pdev->dev.kobj, &abx500_temp_group); + + return 0; +} + +static int abx500_temp_suspend(struct platform_device *pdev, + pm_message_t state) +{ + struct abx500_temp *data = platform_get_drvdata(pdev); + + if (data->work_active) + cancel_delayed_work_sync(&data->work); + + return 0; +} + +static int abx500_temp_resume(struct platform_device *pdev) +{ + struct abx500_temp *data = platform_get_drvdata(pdev); + + if (data->work_active) + schedule_monitor(data); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id abx500_temp_match[] = { + { .compatible = "stericsson,abx500-temp" }, + {}, +}; +#endif + +static struct platform_driver abx500_temp_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "abx500-temp", + .of_match_table = of_match_ptr(abx500_temp_match), + }, + .suspend = abx500_temp_suspend, + .resume = abx500_temp_resume, + .probe = abx500_temp_probe, + .remove = abx500_temp_remove, +}; + +module_platform_driver(abx500_temp_driver); + +MODULE_AUTHOR("Martin Persson "); +MODULE_DESCRIPTION("ABX500 temperature driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/abx500.h b/drivers/hwmon/abx500.h new file mode 100644 index 0000000..9b295e6 --- /dev/null +++ b/drivers/hwmon/abx500.h @@ -0,0 +1,69 @@ +/* + * Copyright (C) ST-Ericsson 2010 - 2013 + * License terms: GNU General Public License v2 + * Author: Martin Persson + * Hongbo Zhang + */ + +#ifndef _ABX500_H +#define _ABX500_H + +#define NUM_SENSORS 5 + +struct abx500_temp; + +/* + * struct abx500_temp_ops - abx500 chip specific ops + * @read_sensor: reads gpadc output + * @irq_handler: irq handler + * @show_name: hwmon device name + * @show_label: hwmon attribute label + * @is_visible: is attribute visible + */ +struct abx500_temp_ops { + int (*read_sensor)(struct abx500_temp *, u8, int *); + int (*irq_handler)(int, struct abx500_temp *); + ssize_t (*show_name)(struct device *, + struct device_attribute *, char *); + ssize_t (*show_label) (struct device *, + struct device_attribute *, char *); + int (*is_visible)(struct attribute *, int); +}; + +/* + * struct abx500_temp - representation of temp mon device + * @pdev: platform device + * @hwmon_dev: hwmon device + * @ops: abx500 chip specific ops + * @gpadc_addr: gpadc channel address + * @min: sensor temperature min value + * @max: sensor temperature max value + * @max_hyst: sensor temperature hysteresis value for max limit + * @min_alarm: sensor temperature min alarm + * @max_alarm: sensor temperature max alarm + * @work: delayed work scheduled to monitor temperature periodically + * @work_active: True if work is active + * @lock: mutex + * @monitored_sensors: number of monitored sensors + * @plat_data: private usage, usually points to platform specific data + */ +struct abx500_temp { + struct platform_device *pdev; + struct device *hwmon_dev; + struct abx500_temp_ops ops; + u8 gpadc_addr[NUM_SENSORS]; + unsigned long min[NUM_SENSORS]; + unsigned long max[NUM_SENSORS]; + unsigned long max_hyst[NUM_SENSORS]; + bool min_alarm[NUM_SENSORS]; + bool max_alarm[NUM_SENSORS]; + struct delayed_work work; + bool work_active; + struct mutex lock; + int monitored_sensors; + void *plat_data; +}; + +int abx500_hwmon_init(struct abx500_temp *data); + +#endif /* _ABX500_H */ diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 7c84ced..f276352 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -95,6 +95,7 @@ #define AB8500_IT_MASK22_REG 0x55 #define AB8500_IT_MASK23_REG 0x56 #define AB8500_IT_MASK24_REG 0x57 +#define AB8500_IT_MASK25_REG 0x58 /* * latch hierarchy registers @@ -102,15 +103,25 @@ #define AB8500_IT_LATCHHIER1_REG 0x60 #define AB8500_IT_LATCHHIER2_REG 0x61 #define AB8500_IT_LATCHHIER3_REG 0x62 +#define AB8540_IT_LATCHHIER4_REG 0x63 #define AB8500_IT_LATCHHIER_NUM 3 +#define AB8540_IT_LATCHHIER_NUM 4 #define AB8500_REV_REG 0x80 #define AB8500_IC_NAME_REG 0x82 #define AB8500_SWITCH_OFF_STATUS 0x00 #define AB8500_TURN_ON_STATUS 0x00 +#define AB8505_TURN_ON_STATUS_2 0x04 +#define AB8500_CH_USBCH_STAT1_REG 0x02 +#define VBUS_DET_DBNC100 0x02 +#define VBUS_DET_DBNC1 0x01 + +static DEFINE_SPINLOCK(on_stat_lock); +static u8 turn_on_stat_mask = 0xFF; +static u8 turn_on_stat_set; static bool no_bm; /* No battery management */ module_param(no_bm, bool, S_IRUGO); @@ -130,9 +141,15 @@ static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = { 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, }; -/* AB9540 support */ +/* AB9540 / AB8505 support */ static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = { - 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, + 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23 +}; + +/* AB8540 support */ +static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = { + 0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23, + 25, 26, 27, 28, 29, 30, 31, }; static const char ab8500_version_str[][7] = { @@ -352,6 +369,9 @@ static void ab8500_irq_sync_unlock(struct irq_data *data) is_ab8500_1p1_or_earlier(ab8500)) continue; + if (ab8500->irq_reg_offset[i] < 0) + continue; + ab8500->oldmask[i] = new; reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i]; @@ -423,6 +443,18 @@ static struct irq_chip ab8500_irq_chip = { .irq_set_type = ab8500_irq_set_type, }; +static void update_latch_offset(u8 *offset, int i) +{ + /* Fix inconsistent ITFromLatch25 bit mapping... */ + if (unlikely(*offset == 17)) + *offset = 24; + /* Fix inconsistent ab8540 bit mapping... */ + if (unlikely(*offset == 16)) + *offset = 25; + if ((i==3) && (*offset >= 24)) + *offset += 2; +} + static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500, int latch_offset, u8 latch_val) { @@ -474,9 +506,7 @@ static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500, latch_bit = __ffs(hier_val); latch_offset = (hier_offset << 3) + latch_bit; - /* Fix inconsistent ITFromLatch25 bit mapping... */ - if (unlikely(latch_offset == 17)) - latch_offset = 24; + update_latch_offset(&latch_offset, hier_offset); status = get_register_interruptible(ab8500, AB8500_INTERRUPT, @@ -504,7 +534,7 @@ static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev) dev_vdbg(ab8500->dev, "interrupt\n"); /* Hierarchical interrupt version */ - for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) { + for (i = 0; i < (ab8500->it_latchhier_num); i++) { int status; u8 hier_val; @@ -520,63 +550,6 @@ static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev) return IRQ_HANDLED; } -/** - * ab8500_irq_get_virq(): Map an interrupt on a chip to a virtual IRQ - * - * @ab8500: ab8500_irq controller to operate on. - * @irq: index of the interrupt requested in the chip IRQs - * - * Useful for drivers to request their own IRQs. - */ -static int ab8500_irq_get_virq(struct ab8500 *ab8500, int irq) -{ - if (!ab8500) - return -EINVAL; - - return irq_create_mapping(ab8500->domain, irq); -} - -static irqreturn_t ab8500_irq(int irq, void *dev) -{ - struct ab8500 *ab8500 = dev; - int i; - - dev_vdbg(ab8500->dev, "interrupt\n"); - - atomic_inc(&ab8500->transfer_ongoing); - - for (i = 0; i < ab8500->mask_size; i++) { - int regoffset = ab8500->irq_reg_offset[i]; - int status; - u8 value; - - /* - * Interrupt register 12 doesn't exist prior to AB8500 version - * 2.0 - */ - if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500)) - continue; - - status = get_register_interruptible(ab8500, AB8500_INTERRUPT, - AB8500_IT_LATCH1_REG + regoffset, &value); - if (status < 0 || value == 0) - continue; - - do { - int bit = __ffs(value); - int line = i * 8 + bit; - int virq = ab8500_irq_get_virq(ab8500, line); - - handle_nested_irq(virq); - ab8500_debug_register_interrupt(line); - value &= ~(1 << bit); - - } while (value); - } - atomic_dec(&ab8500->transfer_ongoing); - return IRQ_HANDLED; -} - static int ab8500_irq_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hwirq) { @@ -607,7 +580,9 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np) { int num_irqs; - if (is_ab9540(ab8500)) + if (is_ab8540(ab8500)) + num_irqs = AB8540_NR_IRQS; + else if (is_ab9540(ab8500)) num_irqs = AB9540_NR_IRQS; else if (is_ab8505(ab8500)) num_irqs = AB8505_NR_IRQS; @@ -650,6 +625,15 @@ static struct resource ab8500_gpadc_resources[] = { }, }; +static struct resource ab8505_gpadc_resources[] = { + { + .name = "SW_CONV_END", + .start = AB8500_INT_GP_SW_ADC_CONV_END, + .end = AB8500_INT_GP_SW_ADC_CONV_END, + .flags = IORESOURCE_IRQ, + }, +}; + static struct resource ab8500_rtc_resources[] = { { .name = "60S", @@ -973,6 +957,30 @@ static struct resource ab8505_iddet_resources[] = { .end = AB8505_INT_KEYSTUCK, .flags = IORESOURCE_IRQ, }, + { + .name = "VBUS_DET_R", + .start = AB8500_INT_VBUS_DET_R, + .end = AB8500_INT_VBUS_DET_R, + .flags = IORESOURCE_IRQ, + }, + { + .name = "VBUS_DET_F", + .start = AB8500_INT_VBUS_DET_F, + .end = AB8500_INT_VBUS_DET_F, + .flags = IORESOURCE_IRQ, + }, + { + .name = "ID_DET_PLUGR", + .start = AB8500_INT_ID_DET_PLUGR, + .end = AB8500_INT_ID_DET_PLUGR, + .flags = IORESOURCE_IRQ, + }, + { + .name = "ID_DET_PLUGF", + .start = AB8500_INT_ID_DET_PLUGF, + .end = AB8500_INT_ID_DET_PLUGF, + .flags = IORESOURCE_IRQ, + }, }; static struct resource ab8500_temp_resources[] = { @@ -984,7 +992,42 @@ static struct resource ab8500_temp_resources[] = { }, }; -static struct mfd_cell abx500_common_devs[] = { +static struct mfd_cell ab8500_bm_devs[] = { + { + .name = "ab8500-charger", + .of_compatible = "stericsson,ab8500-charger", + .num_resources = ARRAY_SIZE(ab8500_charger_resources), + .resources = ab8500_charger_resources, + .platform_data = &ab8500_bm_data, + .pdata_size = sizeof(ab8500_bm_data), + }, + { + .name = "ab8500-btemp", + .of_compatible = "stericsson,ab8500-btemp", + .num_resources = ARRAY_SIZE(ab8500_btemp_resources), + .resources = ab8500_btemp_resources, + .platform_data = &ab8500_bm_data, + .pdata_size = sizeof(ab8500_bm_data), + }, + { + .name = "ab8500-fg", + .of_compatible = "stericsson,ab8500-fg", + .num_resources = ARRAY_SIZE(ab8500_fg_resources), + .resources = ab8500_fg_resources, + .platform_data = &ab8500_bm_data, + .pdata_size = sizeof(ab8500_bm_data), + }, + { + .name = "ab8500-chargalg", + .of_compatible = "stericsson,ab8500-chargalg", + .num_resources = ARRAY_SIZE(ab8500_chargalg_resources), + .resources = ab8500_chargalg_resources, + .platform_data = &ab8500_bm_data, + .pdata_size = sizeof(ab8500_bm_data), + }, +}; + +static struct mfd_cell ab8500_devs[] = { #ifdef CONFIG_DEBUG_FS { .name = "ab8500-debug", @@ -1007,7 +1050,6 @@ static struct mfd_cell abx500_common_devs[] = { }, { .name = "ab8500-gpadc", - .of_compatible = "stericsson,ab8500-gpadc", .num_resources = ARRAY_SIZE(ab8500_gpadc_resources), .resources = ab8500_gpadc_resources, }, @@ -1024,6 +1066,7 @@ static struct mfd_cell abx500_common_devs[] = { .resources = ab8500_av_acc_detect_resources, }, { + .name = "ab8500-poweron-key", .of_compatible = "stericsson,ab8500-poweron-key", .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), @@ -1053,82 +1096,220 @@ static struct mfd_cell abx500_common_devs[] = { .of_compatible = "stericsson,ab8500-denc", }, { + .name = "ab8500-gpio", + .of_compatible = "stericsson,ab8500-gpio", + }, + { .name = "abx500-temp", .of_compatible = "stericsson,abx500-temp", .num_resources = ARRAY_SIZE(ab8500_temp_resources), .resources = ab8500_temp_resources, }, + { + .name = "ab8500-usb", + .num_resources = ARRAY_SIZE(ab8500_usb_resources), + .resources = ab8500_usb_resources, + }, + { + .name = "ab8500-codec", + }, }; -static struct mfd_cell ab8500_bm_devs[] = { +static struct mfd_cell ab9540_devs[] = { +#ifdef CONFIG_DEBUG_FS { - .name = "ab8500-charger", - .of_compatible = "stericsson,ab8500-charger", - .num_resources = ARRAY_SIZE(ab8500_charger_resources), - .resources = ab8500_charger_resources, - .platform_data = &ab8500_bm_data, - .pdata_size = sizeof(ab8500_bm_data), + .name = "ab8500-debug", + .num_resources = ARRAY_SIZE(ab8500_debug_resources), + .resources = ab8500_debug_resources, }, +#endif { - .name = "ab8500-btemp", - .of_compatible = "stericsson,ab8500-btemp", - .num_resources = ARRAY_SIZE(ab8500_btemp_resources), - .resources = ab8500_btemp_resources, - .platform_data = &ab8500_bm_data, - .pdata_size = sizeof(ab8500_bm_data), + .name = "ab8500-sysctrl", }, { - .name = "ab8500-fg", - .of_compatible = "stericsson,ab8500-fg", - .num_resources = ARRAY_SIZE(ab8500_fg_resources), - .resources = ab8500_fg_resources, - .platform_data = &ab8500_bm_data, - .pdata_size = sizeof(ab8500_bm_data), + .name = "ab8500-regulator", }, { - .name = "ab8500-chargalg", - .of_compatible = "stericsson,ab8500-chargalg", - .num_resources = ARRAY_SIZE(ab8500_chargalg_resources), - .resources = ab8500_chargalg_resources, - .platform_data = &ab8500_bm_data, - .pdata_size = sizeof(ab8500_bm_data), + .name = "abx500-clk", + .of_compatible = "stericsson,abx500-clk", + }, + { + .name = "ab8500-gpadc", + .of_compatible = "stericsson,ab8500-gpadc", + .num_resources = ARRAY_SIZE(ab8500_gpadc_resources), + .resources = ab8500_gpadc_resources, + }, + { + .name = "ab8500-rtc", + .num_resources = ARRAY_SIZE(ab8500_rtc_resources), + .resources = ab8500_rtc_resources, + }, + { + .name = "ab8500-acc-det", + .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources), + .resources = ab8500_av_acc_detect_resources, + }, + { + .name = "ab8500-poweron-key", + .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), + .resources = ab8500_poweronkey_db_resources, + }, + { + .name = "ab8500-pwm", + .id = 1, + }, + { + .name = "ab8500-leds", + }, + { + .name = "abx500-temp", + .num_resources = ARRAY_SIZE(ab8500_temp_resources), + .resources = ab8500_temp_resources, + }, + { + .name = "pinctrl-ab9540", + .of_compatible = "stericsson,ab9540-gpio", + }, + { + .name = "ab9540-usb", + .num_resources = ARRAY_SIZE(ab8500_usb_resources), + .resources = ab8500_usb_resources, + }, + { + .name = "ab9540-codec", + }, + { + .name = "ab-iddet", + .num_resources = ARRAY_SIZE(ab8505_iddet_resources), + .resources = ab8505_iddet_resources, }, }; -static struct mfd_cell ab8500_devs[] = { +/* Device list for ab8505 */ +static struct mfd_cell ab8505_devs[] = { +#ifdef CONFIG_DEBUG_FS { - .name = "pinctrl-ab8500", - .of_compatible = "stericsson,ab8500-gpio", + .name = "ab8500-debug", + .num_resources = ARRAY_SIZE(ab8500_debug_resources), + .resources = ab8500_debug_resources, + }, +#endif + { + .name = "ab8500-sysctrl", + }, + { + .name = "ab8500-regulator", + }, + { + .name = "abx500-clk", + .of_compatible = "stericsson,abx500-clk", + }, + { + .name = "ab8500-gpadc", + .num_resources = ARRAY_SIZE(ab8505_gpadc_resources), + .resources = ab8505_gpadc_resources, + }, + { + .name = "ab8500-rtc", + .num_resources = ARRAY_SIZE(ab8500_rtc_resources), + .resources = ab8500_rtc_resources, + }, + { + .name = "ab8500-acc-det", + .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources), + .resources = ab8500_av_acc_detect_resources, + }, + { + .name = "ab8500-poweron-key", + .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), + .resources = ab8500_poweronkey_db_resources, + }, + { + .name = "ab8500-pwm", + .id = 1, + }, + { + .name = "ab8500-leds", + }, + { + .name = "ab8500-gpio", }, { .name = "ab8500-usb", - .of_compatible = "stericsson,ab8500-usb", .num_resources = ARRAY_SIZE(ab8500_usb_resources), .resources = ab8500_usb_resources, }, { .name = "ab8500-codec", - .of_compatible = "stericsson,ab8500-codec", + }, + { + .name = "ab-iddet", + .num_resources = ARRAY_SIZE(ab8505_iddet_resources), + .resources = ab8505_iddet_resources, }, }; -static struct mfd_cell ab9540_devs[] = { +static struct mfd_cell ab8540_devs[] = { +#ifdef CONFIG_DEBUG_FS { - .name = "pinctrl-ab9540", - .of_compatible = "stericsson,ab9540-gpio", + .name = "ab8500-debug", + .num_resources = ARRAY_SIZE(ab8500_debug_resources), + .resources = ab8500_debug_resources, + }, +#endif + { + .name = "ab8500-sysctrl", }, { - .name = "ab9540-usb", + .name = "ab8500-regulator", + }, + { + .name = "abx500-clk", + .of_compatible = "stericsson,abx500-clk", + }, + { + .name = "ab8500-gpadc", + .num_resources = ARRAY_SIZE(ab8505_gpadc_resources), + .resources = ab8505_gpadc_resources, + }, + { + .name = "ab8500-rtc", + .num_resources = ARRAY_SIZE(ab8500_rtc_resources), + .resources = ab8500_rtc_resources, + }, + { + .name = "ab8500-acc-det", + .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources), + .resources = ab8500_av_acc_detect_resources, + }, + { + .name = "ab8500-poweron-key", + .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), + .resources = ab8500_poweronkey_db_resources, + }, + { + .name = "ab8500-pwm", + .id = 1, + }, + { + .name = "ab8500-leds", + }, + { + .name = "abx500-temp", + .num_resources = ARRAY_SIZE(ab8500_temp_resources), + .resources = ab8500_temp_resources, + }, + { + .name = "ab8500-gpio", + }, + { + .name = "ab8540-usb", .num_resources = ARRAY_SIZE(ab8500_usb_resources), .resources = ab8500_usb_resources, }, { - .name = "ab9540-codec", + .name = "ab8540-codec", }, -}; - -/* Device list common to ab9540 and ab8505 */ -static struct mfd_cell ab9540_ab8505_devs[] = { { .name = "ab-iddet", .num_resources = ARRAY_SIZE(ab8505_iddet_resources), @@ -1142,6 +1323,7 @@ static ssize_t show_chip_id(struct device *dev, struct ab8500 *ab8500; ab8500 = dev_get_drvdata(dev); + return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL); } @@ -1171,6 +1353,15 @@ static ssize_t show_switch_off_status(struct device *dev, return sprintf(buf, "%#x\n", value); } +/* use mask and set to override the register turn_on_stat value */ +void ab8500_override_turn_on_stat(u8 mask, u8 set) +{ + spin_lock(&on_stat_lock); + turn_on_stat_mask = mask; + turn_on_stat_set = set; + spin_unlock(&on_stat_lock); +} + /* * ab8500 has turned on due to (TURN_ON_STATUS): * 0x01 PORnVbat @@ -1194,9 +1385,38 @@ static ssize_t show_turn_on_status(struct device *dev, AB8500_TURN_ON_STATUS, &value); if (ret < 0) return ret; + + /* + * In L9540, turn_on_status register is not updated correctly if + * the device is rebooted with AC/USB charger connected. Due to + * this, the device boots android instead of entering into charge + * only mode. Read the AC/USB status register to detect the charger + * presence and update the turn on status manually. + */ + if (is_ab9540(ab8500)) { + spin_lock(&on_stat_lock); + value = (value & turn_on_stat_mask) | turn_on_stat_set; + spin_unlock(&on_stat_lock); + } + return sprintf(buf, "%#x\n", value); } +static ssize_t show_turn_on_status_2(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + u8 value; + struct ab8500 *ab8500; + + ab8500 = dev_get_drvdata(dev); + ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK, + AB8505_TURN_ON_STATUS_2, &value); + if (ret < 0) + return ret; + return sprintf(buf, "%#x\n", (value & 0x1)); +} + static ssize_t show_ab9540_dbbrstn(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1253,6 +1473,7 @@ exit: static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL); static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL); static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL); +static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL); static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR, show_ab9540_dbbrstn, store_ab9540_dbbrstn); @@ -1263,6 +1484,11 @@ static struct attribute *ab8500_sysfs_entries[] = { NULL, }; +static struct attribute *ab8505_sysfs_entries[] = { + &dev_attr_turn_on_status_2.attr, + NULL, +}; + static struct attribute *ab9540_sysfs_entries[] = { &dev_attr_chip_id.attr, &dev_attr_switch_off_status.attr, @@ -1275,6 +1501,10 @@ static struct attribute_group ab8500_attr_group = { .attrs = ab8500_sysfs_entries, }; +static struct attribute_group ab8505_attr_group = { + .attrs = ab8505_sysfs_entries, +}; + static struct attribute_group ab9540_attr_group = { .attrs = ab9540_sysfs_entries, }; @@ -1290,6 +1520,15 @@ static int ab8500_probe(struct platform_device *pdev) "Battery level lower than power on reset threshold", "Power on key 1 pressed longer than 10 seconds", "DB8500 thermal shutdown"}; + static char *turn_on_status[] = { + "Battery rising (Vbat)", + "Power On Key 1 dbF", + "Power On Key 2 dbF", + "RTC Alarm", + "Main Charger Detect", + "Vbus Detect (USB)", + "USB ID Detect", + "UART Factory Mode Detect"}; struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev); const struct platform_device_id *platid = platform_get_device_id(pdev); enum ab8500_version version = AB8500_VERSION_UNDEFINED; @@ -1351,13 +1590,20 @@ static int ab8500_probe(struct platform_device *pdev) ab8500->chip_id >> 4, ab8500->chip_id & 0x0F); - /* Configure AB8500 or AB9540 IRQ */ - if (is_ab9540(ab8500) || is_ab8505(ab8500)) { + /* Configure AB8540 */ + if (is_ab8540(ab8500)) { + ab8500->mask_size = AB8540_NUM_IRQ_REGS; + ab8500->irq_reg_offset = ab8540_irq_regoffset; + ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM; + }/* Configure AB8500 or AB9540 IRQ */ + else if (is_ab9540(ab8500) || is_ab8505(ab8500)) { ab8500->mask_size = AB9540_NUM_IRQ_REGS; ab8500->irq_reg_offset = ab9540_irq_regoffset; + ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM; } else { ab8500->mask_size = AB8500_NUM_IRQ_REGS; ab8500->irq_reg_offset = ab8500_irq_regoffset; + ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM; } ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); if (!ab8500->mask) @@ -1396,10 +1642,36 @@ static int ab8500_probe(struct platform_device *pdev) } else { printk(KERN_CONT " None\n"); } + ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK, + AB8500_TURN_ON_STATUS, &value); + if (ret < 0) + return ret; + dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value); + + if (value) { + for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) { + if (value & 1) + printk("\"%s\" ", turn_on_status[i]); + value = value >> 1; + } + printk("\n"); + } else { + printk("None\n"); + } if (plat && plat->init) plat->init(ab8500); + if (is_ab9540(ab8500)) { + ret = get_register_interruptible(ab8500, AB8500_CHARGER, + AB8500_CH_USBCH_STAT1_REG, &value); + if (ret < 0) + return ret; + if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100)) + ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON, + AB8500_VBUS_DET); + } + /* Clear and mask all interrupts */ for (i = 0; i < ab8500->mask_size; i++) { /* @@ -1410,6 +1682,9 @@ static int ab8500_probe(struct platform_device *pdev) is_ab8500_1p1_or_earlier(ab8500)) continue; + if (ab8500->irq_reg_offset[i] < 0) + continue; + get_register_interruptible(ab8500, AB8500_INTERRUPT, AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i], &value); @@ -1428,26 +1703,10 @@ static int ab8500_probe(struct platform_device *pdev) if (ret) return ret; - /* Activate this feature only in ab9540 */ - /* till tests are done on ab8500 1p2 or later*/ - if (is_ab9540(ab8500)) { - ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, - ab8500_hierarchical_irq, - IRQF_ONESHOT | IRQF_NO_SUSPEND, - "ab8500", ab8500); - } - else { - ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, - ab8500_irq, - IRQF_ONESHOT | IRQF_NO_SUSPEND, - "ab8500", ab8500); - if (ret) - return ret; - } - - ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs, - ARRAY_SIZE(abx500_common_devs), NULL, - ab8500->irq_base, ab8500->domain); + ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, + ab8500_hierarchical_irq, + IRQF_ONESHOT | IRQF_NO_SUSPEND, + "ab8500", ab8500); if (ret) return ret; @@ -1455,6 +1714,14 @@ static int ab8500_probe(struct platform_device *pdev) ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs, ARRAY_SIZE(ab9540_devs), NULL, ab8500->irq_base, ab8500->domain); + else if (is_ab8540(ab8500)) + ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs, + ARRAY_SIZE(ab8540_devs), NULL, + ab8500->irq_base, ab8500->domain); + else if (is_ab8505(ab8500)) + ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs, + ARRAY_SIZE(ab8505_devs), NULL, + ab8500->irq_base, ab8500->domain); else ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs, ARRAY_SIZE(ab8500_devs), NULL, @@ -1462,13 +1729,6 @@ static int ab8500_probe(struct platform_device *pdev) if (ret) return ret; - if (is_ab9540(ab8500) || is_ab8505(ab8500)) - ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs, - ARRAY_SIZE(ab9540_ab8505_devs), NULL, - ab8500->irq_base, ab8500->domain); - if (ret) - return ret; - if (!no_bm) { /* Add battery management devices */ ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs, @@ -1478,12 +1738,19 @@ static int ab8500_probe(struct platform_device *pdev) dev_err(ab8500->dev, "error adding bm devices\n"); } - if (is_ab9540(ab8500)) + if (((is_ab8505(ab8500) || is_ab9540(ab8500)) && + ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500)) ret = sysfs_create_group(&ab8500->dev->kobj, &ab9540_attr_group); else ret = sysfs_create_group(&ab8500->dev->kobj, &ab8500_attr_group); + + if ((is_ab8505(ab8500) || is_ab9540(ab8500)) && + ab8500->chip_id >= AB8500_CUT2P0) + ret = sysfs_create_group(&ab8500->dev->kobj, + &ab8505_attr_group); + if (ret) dev_err(ab8500->dev, "error creating sysfs entries\n"); @@ -1494,11 +1761,16 @@ static int ab8500_remove(struct platform_device *pdev) { struct ab8500 *ab8500 = platform_get_drvdata(pdev); - if (is_ab9540(ab8500)) + if (((is_ab8505(ab8500) || is_ab9540(ab8500)) && + ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500)) sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group); else sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group); + if ((is_ab8505(ab8500) || is_ab9540(ab8500)) && + ab8500->chip_id >= AB8500_CUT2P0) + sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group); + mfd_remove_devices(ab8500->dev); return 0; diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c index 45fe3c5..b88bbbc 100644 --- a/drivers/mfd/ab8500-debugfs.c +++ b/drivers/mfd/ab8500-debugfs.c @@ -80,6 +80,7 @@ #include #include #include +#include #include #include @@ -90,6 +91,9 @@ #include #endif +/* TODO: this file should not reference IRQ_DB8500_AB8500! */ +#include + static u32 debug_bank; static u32 debug_address; @@ -101,6 +105,11 @@ static int num_irqs; static struct device_attribute **dev_attr; static char **event_name; +static u8 avg_sample = SAMPLE_16; +static u8 trig_edge = RISING_EDGE; +static u8 conv_type = ADC_SW; +static u8 trig_timer; + /** * struct ab8500_reg_range * @first: the first address of the range @@ -150,7 +159,9 @@ static struct hwreg_cfg hwreg_cfg = { #define AB8500_REV_REG 0x80 -static struct ab8500_prcmu_ranges debug_ranges[AB8500_NUM_BANKS] = { +static struct ab8500_prcmu_ranges *debug_ranges; + +struct ab8500_prcmu_ranges ab8500_debug_ranges[AB8500_NUM_BANKS] = { [0x0] = { .num_ranges = 0, .range = NULL, @@ -354,7 +365,7 @@ static struct ab8500_prcmu_ranges debug_ranges[AB8500_NUM_BANKS] = { }, { .first = 0xf5, - .last = 0xf6, + .last = 0xf6, }, }, }, @@ -479,699 +490,2081 @@ static struct ab8500_prcmu_ranges debug_ranges[AB8500_NUM_BANKS] = { }, }; -static irqreturn_t ab8500_debug_handler(int irq, void *data) -{ - char buf[16]; - struct kobject *kobj = (struct kobject *)data; - unsigned int irq_abb = irq - irq_first; - - if (irq_abb < num_irqs) - irq_count[irq_abb]++; - /* - * This makes it possible to use poll for events (POLLPRI | POLLERR) - * from userspace on sysfs file named - */ - sprintf(buf, "%d", irq); - sysfs_notify(kobj, NULL, buf); - - return IRQ_HANDLED; -} - -/* Prints to seq_file or log_buf */ -static int ab8500_registers_print(struct device *dev, u32 bank, - struct seq_file *s) -{ - unsigned int i; - - for (i = 0; i < debug_ranges[bank].num_ranges; i++) { - u32 reg; - - for (reg = debug_ranges[bank].range[i].first; - reg <= debug_ranges[bank].range[i].last; - reg++) { - u8 value; - int err; - - err = abx500_get_register_interruptible(dev, - (u8)bank, (u8)reg, &value); - if (err < 0) { - dev_err(dev, "ab->read fail %d\n", err); - return err; - } - - if (s) { - err = seq_printf(s, " [%u/0x%02X]: 0x%02X\n", - bank, reg, value); - if (err < 0) { - dev_err(dev, - "seq_printf overflow bank=%d reg=%d\n", - bank, reg); - /* Error is not returned here since - * the output is wanted in any case */ - return 0; - } - } else { - printk(KERN_INFO" [%u/0x%02X]: 0x%02X\n", bank, - reg, value); - } - } - } - return 0; -} - -static int ab8500_print_bank_registers(struct seq_file *s, void *p) -{ - struct device *dev = s->private; - u32 bank = debug_bank; - - seq_printf(s, AB8500_NAME_STRING " register values:\n"); - - seq_printf(s, " bank %u:\n", bank); - - ab8500_registers_print(dev, bank, s); - return 0; -} - -static int ab8500_registers_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_print_bank_registers, inode->i_private); -} - -static const struct file_operations ab8500_registers_fops = { - .open = ab8500_registers_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int ab8500_print_all_banks(struct seq_file *s, void *p) -{ - struct device *dev = s->private; - unsigned int i; - int err; - - seq_printf(s, AB8500_NAME_STRING " register values:\n"); - - for (i = 1; i < AB8500_NUM_BANKS; i++) { - err = seq_printf(s, " bank %u:\n", i); - if (err < 0) - dev_err(dev, "seq_printf overflow, bank=%d\n", i); - - ab8500_registers_print(dev, i, s); - } - return 0; -} - -/* Dump registers to kernel log */ -void ab8500_dump_all_banks(struct device *dev) -{ - unsigned int i; - - printk(KERN_INFO"ab8500 register values:\n"); - - for (i = 1; i < AB8500_NUM_BANKS; i++) { - printk(KERN_INFO" bank %u:\n", i); - ab8500_registers_print(dev, i, NULL); - } -} - -static int ab8500_all_banks_open(struct inode *inode, struct file *file) -{ - struct seq_file *s; - int err; - - err = single_open(file, ab8500_print_all_banks, inode->i_private); - if (!err) { - /* Default buf size in seq_read is not enough */ - s = (struct seq_file *)file->private_data; - s->size = (PAGE_SIZE * 2); - s->buf = kmalloc(s->size, GFP_KERNEL); - if (!s->buf) { - single_release(inode, file); - err = -ENOMEM; - } - } - return err; -} - -static const struct file_operations ab8500_all_banks_fops = { - .open = ab8500_all_banks_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int ab8500_bank_print(struct seq_file *s, void *p) -{ - return seq_printf(s, "%d\n", debug_bank); -} - -static int ab8500_bank_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_bank_print, inode->i_private); -} - -static ssize_t ab8500_bank_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct device *dev = ((struct seq_file *)(file->private_data))->private; - unsigned long user_bank; - int err; - - /* Get userspace string and assure termination */ - err = kstrtoul_from_user(user_buf, count, 0, &user_bank); - if (err) - return err; - - if (user_bank >= AB8500_NUM_BANKS) { - dev_err(dev, "debugfs error input > number of banks\n"); - return -EINVAL; - } - - debug_bank = user_bank; - - return count; -} - -static int ab8500_address_print(struct seq_file *s, void *p) -{ - return seq_printf(s, "0x%02X\n", debug_address); -} - -static int ab8500_address_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_address_print, inode->i_private); -} - -static ssize_t ab8500_address_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct device *dev = ((struct seq_file *)(file->private_data))->private; - unsigned long user_address; - int err; - - /* Get userspace string and assure termination */ - err = kstrtoul_from_user(user_buf, count, 0, &user_address); - if (err) - return err; - - if (user_address > 0xff) { - dev_err(dev, "debugfs error input > 0xff\n"); - return -EINVAL; - } - debug_address = user_address; - return count; -} - -static int ab8500_val_print(struct seq_file *s, void *p) -{ - struct device *dev = s->private; - int ret; - u8 regvalue; - - ret = abx500_get_register_interruptible(dev, - (u8)debug_bank, (u8)debug_address, ®value); - if (ret < 0) { - dev_err(dev, "abx500_get_reg fail %d, %d\n", - ret, __LINE__); - return -EINVAL; - } - seq_printf(s, "0x%02X\n", regvalue); - - return 0; -} - -static int ab8500_val_open(struct inode *inode, struct file *file) -{ - return single_open(file, ab8500_val_print, inode->i_private); -} - -static ssize_t ab8500_val_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct device *dev = ((struct seq_file *)(file->private_data))->private; - unsigned long user_val; - int err; - - /* Get userspace string and assure termination */ - err = kstrtoul_from_user(user_buf, count, 0, &user_val); - if (err) - return err; - - if (user_val > 0xff) { - dev_err(dev, "debugfs error input > 0xff\n"); - return -EINVAL; - } - err = abx500_set_register_interruptible(dev, - (u8)debug_bank, debug_address, (u8)user_val); - if (err < 0) { - printk(KERN_ERR "abx500_set_reg failed %d, %d", err, __LINE__); - return -EINVAL; - } - - return count; -} - -/* - * Interrupt status - */ -static u32 num_interrupts[AB8500_MAX_NR_IRQS]; -static int num_interrupt_lines; - -void ab8500_debug_register_interrupt(int line) +struct ab8500_prcmu_ranges ab8505_debug_ranges[AB8500_NUM_BANKS] = { + [0x0] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_SYS_CTRL1_BLOCK] = { + .num_ranges = 5, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x04, + }, + { + .first = 0x42, + .last = 0x42, + }, + { + .first = 0x52, + .last = 0x52, + }, + { + .first = 0x54, + .last = 0x57, + }, + { + .first = 0x80, + .last = 0x83, + }, + }, + }, + [AB8500_SYS_CTRL2_BLOCK] = { + .num_ranges = 5, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x0D, + }, + { + .first = 0x0F, + .last = 0x17, + }, + { + .first = 0x20, + .last = 0x20, + }, + { + .first = 0x30, + .last = 0x30, + }, + { + .first = 0x32, + .last = 0x3A, + }, + }, + }, + [AB8500_REGU_CTRL1] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x00, + }, + { + .first = 0x03, + .last = 0x11, + }, + { + .first = 0x80, + .last = 0x86, + }, + }, + }, + [AB8500_REGU_CTRL2] = { + .num_ranges = 6, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x06, + }, + { + .first = 0x08, + .last = 0x15, + }, + { + .first = 0x17, + .last = 0x19, + }, + { + .first = 0x1B, + .last = 0x1D, + }, + { + .first = 0x1F, + .last = 0x30, + }, + { + .first = 0x40, + .last = 0x48, + }, + /* 0x80-0x8B is SIM registers and should + * not be accessed from here */ + }, + }, + [AB8500_USB] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x80, + .last = 0x83, + }, + { + .first = 0x87, + .last = 0x8A, + }, + { + .first = 0x91, + .last = 0x94, + }, + }, + }, + [AB8500_TVOUT] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_DBI] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_ECI_AV_ACC] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x80, + .last = 0x82, + }, + }, + }, + [AB8500_RESERVED] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_GPADC] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x08, + }, + }, + }, + [AB8500_CHARGER] = { + .num_ranges = 9, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x02, + .last = 0x03, + }, + { + .first = 0x05, + .last = 0x05, + }, + { + .first = 0x40, + .last = 0x44, + }, + { + .first = 0x50, + .last = 0x57, + }, + { + .first = 0x60, + .last = 0x60, + }, + { + .first = 0xA0, + .last = 0xA7, + }, + { + .first = 0xAF, + .last = 0xB2, + }, + { + .first = 0xC0, + .last = 0xC2, + }, + { + .first = 0xF5, + .last = 0xF5, + }, + }, + }, + [AB8500_GAS_GAUGE] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x00, + }, + { + .first = 0x07, + .last = 0x0A, + }, + { + .first = 0x10, + .last = 0x14, + }, + }, + }, + [AB8500_AUDIO] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x83, + }, + }, + }, + [AB8500_INTERRUPT] = { + .num_ranges = 11, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x04, + }, + { + .first = 0x06, + .last = 0x07, + }, + { + .first = 0x09, + .last = 0x09, + }, + { + .first = 0x0B, + .last = 0x0C, + }, + { + .first = 0x12, + .last = 0x15, + }, + { + .first = 0x18, + .last = 0x18, + }, + /* Latch registers should not be read here */ + { + .first = 0x40, + .last = 0x44, + }, + { + .first = 0x46, + .last = 0x49, + }, + { + .first = 0x4B, + .last = 0x4D, + }, + { + .first = 0x52, + .last = 0x55, + }, + { + .first = 0x58, + .last = 0x58, + }, + /* LatchHier registers should not be read here */ + }, + }, + [AB8500_RTC] = { + .num_ranges = 2, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x14, + }, + { + .first = 0x16, + .last = 0x17, + }, + }, + }, + [AB8500_MISC] = { + .num_ranges = 8, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x06, + }, + { + .first = 0x10, + .last = 0x16, + }, + { + .first = 0x20, + .last = 0x26, + }, + { + .first = 0x30, + .last = 0x36, + }, + { + .first = 0x40, + .last = 0x46, + }, + { + .first = 0x50, + .last = 0x50, + }, + { + .first = 0x60, + .last = 0x6B, + }, + { + .first = 0x80, + .last = 0x82, + }, + }, + }, + [AB8500_DEVELOPMENT] = { + .num_ranges = 2, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x00, + }, + { + .first = 0x05, + .last = 0x05, + }, + }, + }, + [AB8500_DEBUG] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x05, + .last = 0x07, + }, + }, + }, + [AB8500_PROD_TEST] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_STE_TEST] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_OTP_EMUL] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x01, + .last = 0x15, + }, + }, + }, +}; + +struct ab8500_prcmu_ranges ab8540_debug_ranges[AB8500_NUM_BANKS] = { + [AB8500_M_FSM_RANK] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x0B, + }, + }, + }, + [AB8500_SYS_CTRL1_BLOCK] = { + .num_ranges = 6, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x04, + }, + { + .first = 0x42, + .last = 0x42, + }, + { + .first = 0x50, + .last = 0x54, + }, + { + .first = 0x57, + .last = 0x57, + }, + { + .first = 0x80, + .last = 0x83, + }, + { + .first = 0x90, + .last = 0x90, + }, + }, + }, + [AB8500_SYS_CTRL2_BLOCK] = { + .num_ranges = 5, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x0D, + }, + { + .first = 0x0F, + .last = 0x10, + }, + { + .first = 0x20, + .last = 0x21, + }, + { + .first = 0x32, + .last = 0x3C, + }, + { + .first = 0x40, + .last = 0x42, + }, + }, + }, + [AB8500_REGU_CTRL1] = { + .num_ranges = 4, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x03, + .last = 0x15, + }, + { + .first = 0x20, + .last = 0x20, + }, + { + .first = 0x80, + .last = 0x85, + }, + { + .first = 0x87, + .last = 0x88, + }, + }, + }, + [AB8500_REGU_CTRL2] = { + .num_ranges = 8, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x06, + }, + { + .first = 0x08, + .last = 0x15, + }, + { + .first = 0x17, + .last = 0x19, + }, + { + .first = 0x1B, + .last = 0x1D, + }, + { + .first = 0x1F, + .last = 0x2F, + }, + { + .first = 0x31, + .last = 0x3A, + }, + { + .first = 0x43, + .last = 0x44, + }, + { + .first = 0x48, + .last = 0x49, + }, + }, + }, + [AB8500_USB] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x80, + .last = 0x83, + }, + { + .first = 0x87, + .last = 0x8A, + }, + { + .first = 0x91, + .last = 0x94, + }, + }, + }, + [AB8500_TVOUT] = { + .num_ranges = 0, + .range = NULL + }, + [AB8500_DBI] = { + .num_ranges = 4, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x07, + }, + { + .first = 0x10, + .last = 0x11, + }, + { + .first = 0x20, + .last = 0x21, + }, + { + .first = 0x30, + .last = 0x43, + }, + }, + }, + [AB8500_ECI_AV_ACC] = { + .num_ranges = 2, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x03, + }, + { + .first = 0x80, + .last = 0x82, + }, + }, + }, + [AB8500_RESERVED] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_GPADC] = { + .num_ranges = 4, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x01, + }, + { + .first = 0x04, + .last = 0x06, + }, + { + .first = 0x09, + .last = 0x0A, + }, + { + .first = 0x10, + .last = 0x14, + }, + }, + }, + [AB8500_CHARGER] = { + .num_ranges = 10, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x00, + }, + { + .first = 0x02, + .last = 0x05, + }, + { + .first = 0x40, + .last = 0x44, + }, + { + .first = 0x50, + .last = 0x57, + }, + { + .first = 0x60, + .last = 0x60, + }, + { + .first = 0x70, + .last = 0x70, + }, + { + .first = 0xA0, + .last = 0xA9, + }, + { + .first = 0xAF, + .last = 0xB2, + }, + { + .first = 0xC0, + .last = 0xC6, + }, + { + .first = 0xF5, + .last = 0xF5, + }, + }, + }, + [AB8500_GAS_GAUGE] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x00, + }, + { + .first = 0x07, + .last = 0x0A, + }, + { + .first = 0x10, + .last = 0x14, + }, + }, + }, + [AB8500_AUDIO] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x9f, + }, + }, + }, + [AB8500_INTERRUPT] = { + .num_ranges = 6, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x05, + }, + { + .first = 0x0B, + .last = 0x0D, + }, + { + .first = 0x12, + .last = 0x20, + }, + /* Latch registers should not be read here */ + { + .first = 0x40, + .last = 0x45, + }, + { + .first = 0x4B, + .last = 0x4D, + }, + { + .first = 0x52, + .last = 0x60, + }, + /* LatchHier registers should not be read here */ + }, + }, + [AB8500_RTC] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x07, + }, + { + .first = 0x0B, + .last = 0x18, + }, + { + .first = 0x20, + .last = 0x25, + }, + }, + }, + [AB8500_MISC] = { + .num_ranges = 9, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x06, + }, + { + .first = 0x10, + .last = 0x16, + }, + { + .first = 0x20, + .last = 0x26, + }, + { + .first = 0x30, + .last = 0x36, + }, + { + .first = 0x40, + .last = 0x49, + }, + { + .first = 0x50, + .last = 0x50, + }, + { + .first = 0x60, + .last = 0x6B, + }, + { + .first = 0x70, + .last = 0x74, + }, + { + .first = 0x80, + .last = 0x82, + }, + }, + }, + [AB8500_DEVELOPMENT] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x01, + }, + { + .first = 0x06, + .last = 0x06, + }, + { + .first = 0x10, + .last = 0x21, + }, + }, + }, + [AB8500_DEBUG] = { + .num_ranges = 3, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x01, + .last = 0x0C, + }, + { + .first = 0x0E, + .last = 0x11, + }, + { + .first = 0x80, + .last = 0x81, + }, + }, + }, + [AB8500_PROD_TEST] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_STE_TEST] = { + .num_ranges = 0, + .range = NULL, + }, + [AB8500_OTP_EMUL] = { + .num_ranges = 1, + .range = (struct ab8500_reg_range[]) { + { + .first = 0x00, + .last = 0x3F, + }, + }, + }, +}; + + +static irqreturn_t ab8500_debug_handler(int irq, void *data) +{ + char buf[16]; + struct kobject *kobj = (struct kobject *)data; + unsigned int irq_abb = irq - irq_first; + + if (irq_abb < num_irqs) + irq_count[irq_abb]++; + /* + * This makes it possible to use poll for events (POLLPRI | POLLERR) + * from userspace on sysfs file named + */ + sprintf(buf, "%d", irq); + sysfs_notify(kobj, NULL, buf); + + return IRQ_HANDLED; +} + +/* Prints to seq_file or log_buf */ +static int ab8500_registers_print(struct device *dev, u32 bank, + struct seq_file *s) +{ + unsigned int i; + + for (i = 0; i < debug_ranges[bank].num_ranges; i++) { + u32 reg; + + for (reg = debug_ranges[bank].range[i].first; + reg <= debug_ranges[bank].range[i].last; + reg++) { + u8 value; + int err; + + err = abx500_get_register_interruptible(dev, + (u8)bank, (u8)reg, &value); + if (err < 0) { + dev_err(dev, "ab->read fail %d\n", err); + return err; + } + + if (s) { + err = seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n", + bank, reg, value); + if (err < 0) { + /* Error is not returned here since + * the output is wanted in any case */ + return 0; + } + } else { + printk(KERN_INFO" [0x%02X/0x%02X]: 0x%02X\n", + bank, reg, value); + } + } + } + return 0; +} + +static int ab8500_print_bank_registers(struct seq_file *s, void *p) +{ + struct device *dev = s->private; + u32 bank = debug_bank; + + seq_printf(s, AB8500_NAME_STRING " register values:\n"); + + seq_printf(s, " bank 0x%02X:\n", bank); + + ab8500_registers_print(dev, bank, s); + return 0; +} + +static int ab8500_registers_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_print_bank_registers, inode->i_private); +} + +static const struct file_operations ab8500_registers_fops = { + .open = ab8500_registers_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_print_all_banks(struct seq_file *s, void *p) +{ + struct device *dev = s->private; + unsigned int i; + int err; + + seq_printf(s, AB8500_NAME_STRING " register values:\n"); + + for (i = 0; i < AB8500_NUM_BANKS; i++) { + err = seq_printf(s, " bank 0x%02X:\n", i); + + ab8500_registers_print(dev, i, s); + } + return 0; +} + +/* Dump registers to kernel log */ +void ab8500_dump_all_banks(struct device *dev) +{ + unsigned int i; + + printk(KERN_INFO"ab8500 register values:\n"); + + for (i = 1; i < AB8500_NUM_BANKS; i++) { + printk(KERN_INFO" bank 0x%02X:\n", i); + ab8500_registers_print(dev, i, NULL); + } +} + +/* Space for 500 registers. */ +#define DUMP_MAX_REGS 700 +struct ab8500_register_dump +{ + u8 bank; + u8 reg; + u8 value; +} ab8500_complete_register_dump[DUMP_MAX_REGS]; + +extern int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); + +/* This shall only be called upon kernel panic! */ +void ab8500_dump_all_banks_to_mem(void) +{ + int i, r = 0; + u8 bank; + int err = 0; + + pr_info("Saving all ABB registers at \"ab8500_complete_register_dump\" " + "for crash analyze.\n"); + + for (bank = 0; bank < AB8500_NUM_BANKS; bank++) { + for (i = 0; i < debug_ranges[bank].num_ranges; i++) { + u8 reg; + + for (reg = debug_ranges[bank].range[i].first; + reg <= debug_ranges[bank].range[i].last; + reg++) { + u8 value; + + err = prcmu_abb_read(bank, reg, &value, 1); + + if (err < 0) + goto out; + + ab8500_complete_register_dump[r].bank = bank; + ab8500_complete_register_dump[r].reg = reg; + ab8500_complete_register_dump[r].value = value; + + r++; + + if (r >= DUMP_MAX_REGS) { + pr_err("%s: too many register to dump!\n", + __func__); + err = -EINVAL; + goto out; + } + } + } + } +out: + if (err >= 0) + pr_info("Saved all ABB registers.\n"); + else + pr_info("Failed to save all ABB registers.\n"); +} + +static int ab8500_all_banks_open(struct inode *inode, struct file *file) +{ + struct seq_file *s; + int err; + + err = single_open(file, ab8500_print_all_banks, inode->i_private); + if (!err) { + /* Default buf size in seq_read is not enough */ + s = (struct seq_file *)file->private_data; + s->size = (PAGE_SIZE * 2); + s->buf = kmalloc(s->size, GFP_KERNEL); + if (!s->buf) { + single_release(inode, file); + err = -ENOMEM; + } + } + return err; +} + +static const struct file_operations ab8500_all_banks_fops = { + .open = ab8500_all_banks_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_bank_print(struct seq_file *s, void *p) +{ + return seq_printf(s, "0x%02X\n", debug_bank); +} + +static int ab8500_bank_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_bank_print, inode->i_private); +} + +static ssize_t ab8500_bank_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct device *dev = ((struct seq_file *)(file->private_data))->private; + unsigned long user_bank; + int err; + + err = kstrtoul_from_user(user_buf, count, 0, &user_bank); + if (err) + return err; + + if (user_bank >= AB8500_NUM_BANKS) { + dev_err(dev, "debugfs error input > number of banks\n"); + return -EINVAL; + } + + debug_bank = user_bank; + + return count; +} + +static int ab8500_address_print(struct seq_file *s, void *p) +{ + return seq_printf(s, "0x%02X\n", debug_address); +} + +static int ab8500_address_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_address_print, inode->i_private); +} + +static ssize_t ab8500_address_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct device *dev = ((struct seq_file *)(file->private_data))->private; + unsigned long user_address; + int err; + + err = kstrtoul_from_user(user_buf, count, 0, &user_address); + if (err) + return err; + + if (user_address > 0xff) { + dev_err(dev, "debugfs error input > 0xff\n"); + return -EINVAL; + } + debug_address = user_address; + + return count; +} + +static int ab8500_val_print(struct seq_file *s, void *p) +{ + struct device *dev = s->private; + int ret; + u8 regvalue; + + ret = abx500_get_register_interruptible(dev, + (u8)debug_bank, (u8)debug_address, ®value); + if (ret < 0) { + dev_err(dev, "abx500_get_reg fail %d, %d\n", + ret, __LINE__); + return -EINVAL; + } + seq_printf(s, "0x%02X\n", regvalue); + + return 0; +} + +static int ab8500_val_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_val_print, inode->i_private); +} + +static ssize_t ab8500_val_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct device *dev = ((struct seq_file *)(file->private_data))->private; + unsigned long user_val; + int err; + + err = kstrtoul_from_user(user_buf, count, 0, &user_val); + if (err) + return err; + + if (user_val > 0xff) { + dev_err(dev, "debugfs error input > 0xff\n"); + return -EINVAL; + } + err = abx500_set_register_interruptible(dev, + (u8)debug_bank, debug_address, (u8)user_val); + if (err < 0) { + printk(KERN_ERR "abx500_set_reg failed %d, %d", err, __LINE__); + return -EINVAL; + } + + return count; +} + +/* + * Interrupt status + */ +static u32 num_interrupts[AB8500_MAX_NR_IRQS]; +static u32 num_wake_interrupts[AB8500_MAX_NR_IRQS]; +static int num_interrupt_lines; + +bool __attribute__((weak)) suspend_test_wake_cause_interrupt_is_mine(u32 my_int) +{ + return false; +} + +void ab8500_debug_register_interrupt(int line) +{ + if (line < num_interrupt_lines) { + num_interrupts[line]++; + if (suspend_test_wake_cause_interrupt_is_mine(IRQ_DB8500_AB8500)) + num_wake_interrupts[line]++; + } +} + +static int ab8500_interrupts_print(struct seq_file *s, void *p) +{ + int line; + + seq_printf(s, "name: number: number of: wake:\n"); + + for (line = 0; line < num_interrupt_lines; line++) { + struct irq_desc *desc = irq_to_desc(line + irq_first); + struct irqaction *action = desc->action; + + seq_printf(s, "%3i: %6i %4i", line, + num_interrupts[line], + num_wake_interrupts[line]); + + if (desc && desc->name) + seq_printf(s, "-%-8s", desc->name); + if (action) { + seq_printf(s, " %s", action->name); + while ((action = action->next) != NULL) + seq_printf(s, ", %s", action->name); + } + seq_putc(s, '\n'); + } + + return 0; +} + +static int ab8500_interrupts_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_interrupts_print, inode->i_private); +} + +/* + * - HWREG DB8500 formated routines + */ +static int ab8500_hwreg_print(struct seq_file *s, void *d) +{ + struct device *dev = s->private; + int ret; + u8 regvalue; + + ret = abx500_get_register_interruptible(dev, + (u8)hwreg_cfg.bank, (u8)hwreg_cfg.addr, ®value); + if (ret < 0) { + dev_err(dev, "abx500_get_reg fail %d, %d\n", + ret, __LINE__); + return -EINVAL; + } + + if (hwreg_cfg.shift >= 0) + regvalue >>= hwreg_cfg.shift; + else + regvalue <<= -hwreg_cfg.shift; + regvalue &= hwreg_cfg.mask; + + if (REG_FMT_DEC(&hwreg_cfg)) + seq_printf(s, "%d\n", regvalue); + else + seq_printf(s, "0x%02X\n", regvalue); + return 0; +} + +static int ab8500_hwreg_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_hwreg_print, inode->i_private); +} + +#define AB8500_SUPPLY_CONTROL_CONFIG_1 0x01 +#define AB8500_SUPPLY_CONTROL_REG 0x00 +#define AB8500_FIRST_SIM_REG 0x80 +#define AB8500_LAST_SIM_REG 0x8B +#define AB8505_LAST_SIM_REG 0x8C + +static int ab8500_print_modem_registers(struct seq_file *s, void *p) +{ + struct device *dev = s->private; + struct ab8500 *ab8500; + int err; + u8 value; + u8 orig_value; + u32 bank = AB8500_REGU_CTRL2; + u32 last_sim_reg = AB8500_LAST_SIM_REG; + u32 reg; + + ab8500 = dev_get_drvdata(dev->parent); + dev_warn(dev, "WARNING! This operation can interfer with modem side\n" + "and should only be done with care\n"); + + err = abx500_get_register_interruptible(dev, + AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, &orig_value); + if (err < 0) { + dev_err(dev, "ab->read fail %d\n", err); + return err; + } + /* Config 1 will allow APE side to read SIM registers */ + err = abx500_set_register_interruptible(dev, + AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, + AB8500_SUPPLY_CONTROL_CONFIG_1); + if (err < 0) { + dev_err(dev, "ab->write fail %d\n", err); + return err; + } + + seq_printf(s, " bank 0x%02X:\n", bank); + + if (is_ab9540(ab8500) || is_ab8505(ab8500)) + last_sim_reg = AB8505_LAST_SIM_REG; + + for (reg = AB8500_FIRST_SIM_REG; reg <= last_sim_reg; reg++) { + err = abx500_get_register_interruptible(dev, + bank, reg, &value); + if (err < 0) { + dev_err(dev, "ab->read fail %d\n", err); + return err; + } + err = seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n", + bank, reg, value); + } + err = abx500_set_register_interruptible(dev, + AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, orig_value); + if (err < 0) { + dev_err(dev, "ab->write fail %d\n", err); + return err; + } + return 0; +} + +static int ab8500_modem_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_print_modem_registers, inode->i_private); +} + +static const struct file_operations ab8500_modem_fops = { + .open = ab8500_modem_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_bat_ctrl_print(struct seq_file *s, void *p) +{ + int bat_ctrl_raw; + int bat_ctrl_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL, + avg_sample, trig_edge, trig_timer, conv_type); + bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, + BAT_CTRL, bat_ctrl_raw); + + return seq_printf(s, "%d,0x%X\n", + bat_ctrl_convert, bat_ctrl_raw); +} + +static int ab8500_gpadc_bat_ctrl_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_bat_ctrl_print, inode->i_private); +} + +static const struct file_operations ab8500_gpadc_bat_ctrl_fops = { + .open = ab8500_gpadc_bat_ctrl_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_btemp_ball_print(struct seq_file *s, void *p) +{ + int btemp_ball_raw; + int btemp_ball_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL, + avg_sample, trig_edge, trig_timer, conv_type); + btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, + btemp_ball_raw); + + return seq_printf(s, + "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw); +} + +static int ab8500_gpadc_btemp_ball_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8500_gpadc_btemp_ball_print, inode->i_private); +} + +static const struct file_operations ab8500_gpadc_btemp_ball_fops = { + .open = ab8500_gpadc_btemp_ball_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_main_charger_v_print(struct seq_file *s, void *p) +{ + int main_charger_v_raw; + int main_charger_v_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V, + avg_sample, trig_edge, trig_timer, conv_type); + main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, + MAIN_CHARGER_V, main_charger_v_raw); + + return seq_printf(s, "%d,0x%X\n", + main_charger_v_convert, main_charger_v_raw); +} + +static int ab8500_gpadc_main_charger_v_open(struct inode *inode, + struct file *file) { - if (line < num_interrupt_lines) - num_interrupts[line]++; + return single_open(file, ab8500_gpadc_main_charger_v_print, + inode->i_private); } -static int ab8500_interrupts_print(struct seq_file *s, void *p) +static const struct file_operations ab8500_gpadc_main_charger_v_fops = { + .open = ab8500_gpadc_main_charger_v_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_acc_detect1_print(struct seq_file *s, void *p) { - int line; + int acc_detect1_raw; + int acc_detect1_convert; + struct ab8500_gpadc *gpadc; - seq_printf(s, "irq: number of\n"); + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1, + avg_sample, trig_edge, trig_timer, conv_type); + acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1, + acc_detect1_raw); - for (line = 0; line < num_interrupt_lines; line++) - seq_printf(s, "%3i: %6i\n", line, num_interrupts[line]); + return seq_printf(s, "%d,0x%X\n", + acc_detect1_convert, acc_detect1_raw); +} - return 0; +static int ab8500_gpadc_acc_detect1_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8500_gpadc_acc_detect1_print, + inode->i_private); } -static int ab8500_interrupts_open(struct inode *inode, struct file *file) +static const struct file_operations ab8500_gpadc_acc_detect1_fops = { + .open = ab8500_gpadc_acc_detect1_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_acc_detect2_print(struct seq_file *s, void *p) { - return single_open(file, ab8500_interrupts_print, inode->i_private); + int acc_detect2_raw; + int acc_detect2_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2, + avg_sample, trig_edge, trig_timer, conv_type); + acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc, + ACC_DETECT2, acc_detect2_raw); + + return seq_printf(s, "%d,0x%X\n", + acc_detect2_convert, acc_detect2_raw); } -/* - * - HWREG DB8500 formated routines - */ -static int ab8500_hwreg_print(struct seq_file *s, void *d) +static int ab8500_gpadc_acc_detect2_open(struct inode *inode, + struct file *file) { - struct device *dev = s->private; - int ret; - u8 regvalue; + return single_open(file, ab8500_gpadc_acc_detect2_print, + inode->i_private); +} - ret = abx500_get_register_interruptible(dev, - (u8)hwreg_cfg.bank, (u8)hwreg_cfg.addr, ®value); - if (ret < 0) { - dev_err(dev, "abx500_get_reg fail %d, %d\n", - ret, __LINE__); - return -EINVAL; - } +static const struct file_operations ab8500_gpadc_acc_detect2_fops = { + .open = ab8500_gpadc_acc_detect2_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; - if (hwreg_cfg.shift >= 0) - regvalue >>= hwreg_cfg.shift; - else - regvalue <<= -hwreg_cfg.shift; - regvalue &= hwreg_cfg.mask; +static int ab8500_gpadc_aux1_print(struct seq_file *s, void *p) +{ + int aux1_raw; + int aux1_convert; + struct ab8500_gpadc *gpadc; - if (REG_FMT_DEC(&hwreg_cfg)) - seq_printf(s, "%d\n", regvalue); - else - seq_printf(s, "0x%02X\n", regvalue); - return 0; + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1, + avg_sample, trig_edge, trig_timer, conv_type); + aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1, + aux1_raw); + + return seq_printf(s, "%d,0x%X\n", + aux1_convert, aux1_raw); } -static int ab8500_hwreg_open(struct inode *inode, struct file *file) +static int ab8500_gpadc_aux1_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_hwreg_print, inode->i_private); + return single_open(file, ab8500_gpadc_aux1_print, inode->i_private); +} + +static const struct file_operations ab8500_gpadc_aux1_fops = { + .open = ab8500_gpadc_aux1_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_aux2_print(struct seq_file *s, void *p) +{ + int aux2_raw; + int aux2_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2, + avg_sample, trig_edge, trig_timer, conv_type); + aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2, + aux2_raw); + + return seq_printf(s, "%d,0x%X\n", + aux2_convert, aux2_raw); +} + +static int ab8500_gpadc_aux2_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_aux2_print, inode->i_private); +} + +static const struct file_operations ab8500_gpadc_aux2_fops = { + .open = ab8500_gpadc_aux2_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_main_bat_v_print(struct seq_file *s, void *p) +{ + int main_bat_v_raw; + int main_bat_v_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V, + avg_sample, trig_edge, trig_timer, conv_type); + main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, + main_bat_v_raw); + + return seq_printf(s, "%d,0x%X\n", + main_bat_v_convert, main_bat_v_raw); +} + +static int ab8500_gpadc_main_bat_v_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8500_gpadc_main_bat_v_print, inode->i_private); +} + +static const struct file_operations ab8500_gpadc_main_bat_v_fops = { + .open = ab8500_gpadc_main_bat_v_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_vbus_v_print(struct seq_file *s, void *p) +{ + int vbus_v_raw; + int vbus_v_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + vbus_v_raw = ab8500_gpadc_read_raw(gpadc, VBUS_V, + avg_sample, trig_edge, trig_timer, conv_type); + vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V, + vbus_v_raw); + + return seq_printf(s, "%d,0x%X\n", + vbus_v_convert, vbus_v_raw); +} + +static int ab8500_gpadc_vbus_v_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_vbus_v_print, inode->i_private); +} + +static const struct file_operations ab8500_gpadc_vbus_v_fops = { + .open = ab8500_gpadc_vbus_v_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_main_charger_c_print(struct seq_file *s, void *p) +{ + int main_charger_c_raw; + int main_charger_c_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C, + avg_sample, trig_edge, trig_timer, conv_type); + main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, + MAIN_CHARGER_C, main_charger_c_raw); + + return seq_printf(s, "%d,0x%X\n", + main_charger_c_convert, main_charger_c_raw); +} + +static int ab8500_gpadc_main_charger_c_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8500_gpadc_main_charger_c_print, + inode->i_private); +} + +static const struct file_operations ab8500_gpadc_main_charger_c_fops = { + .open = ab8500_gpadc_main_charger_c_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_usb_charger_c_print(struct seq_file *s, void *p) +{ + int usb_charger_c_raw; + int usb_charger_c_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C, + avg_sample, trig_edge, trig_timer, conv_type); + usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, + USB_CHARGER_C, usb_charger_c_raw); + + return seq_printf(s, "%d,0x%X\n", + usb_charger_c_convert, usb_charger_c_raw); +} + +static int ab8500_gpadc_usb_charger_c_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8500_gpadc_usb_charger_c_print, + inode->i_private); +} + +static const struct file_operations ab8500_gpadc_usb_charger_c_fops = { + .open = ab8500_gpadc_usb_charger_c_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_bk_bat_v_print(struct seq_file *s, void *p) +{ + int bk_bat_v_raw; + int bk_bat_v_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V, + avg_sample, trig_edge, trig_timer, conv_type); + bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, + BK_BAT_V, bk_bat_v_raw); + + return seq_printf(s, "%d,0x%X\n", + bk_bat_v_convert, bk_bat_v_raw); +} + +static int ab8500_gpadc_bk_bat_v_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_bk_bat_v_print, inode->i_private); } -static int ab8500_gpadc_bat_ctrl_print(struct seq_file *s, void *p) +static const struct file_operations ab8500_gpadc_bk_bat_v_fops = { + .open = ab8500_gpadc_bk_bat_v_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8500_gpadc_die_temp_print(struct seq_file *s, void *p) { - int bat_ctrl_raw; - int bat_ctrl_convert; + int die_temp_raw; + int die_temp_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL); - bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, - BAT_CTRL, bat_ctrl_raw); + die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP, + avg_sample, trig_edge, trig_timer, conv_type); + die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP, + die_temp_raw); return seq_printf(s, "%d,0x%X\n", - bat_ctrl_convert, bat_ctrl_raw); + die_temp_convert, die_temp_raw); } -static int ab8500_gpadc_bat_ctrl_open(struct inode *inode, struct file *file) +static int ab8500_gpadc_die_temp_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_gpadc_bat_ctrl_print, inode->i_private); + return single_open(file, ab8500_gpadc_die_temp_print, inode->i_private); } -static const struct file_operations ab8500_gpadc_bat_ctrl_fops = { - .open = ab8500_gpadc_bat_ctrl_open, +static const struct file_operations ab8500_gpadc_die_temp_fops = { + .open = ab8500_gpadc_die_temp_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_btemp_ball_print(struct seq_file *s, void *p) +static int ab8500_gpadc_usb_id_print(struct seq_file *s, void *p) { - int btemp_ball_raw; - int btemp_ball_convert; + int usb_id_raw; + int usb_id_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL); - btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, - btemp_ball_raw); + usb_id_raw = ab8500_gpadc_read_raw(gpadc, USB_ID, + avg_sample, trig_edge, trig_timer, conv_type); + usb_id_convert = ab8500_gpadc_ad_to_voltage(gpadc, USB_ID, + usb_id_raw); - return seq_printf(s, - "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw); + return seq_printf(s, "%d,0x%X\n", + usb_id_convert, usb_id_raw); } -static int ab8500_gpadc_btemp_ball_open(struct inode *inode, - struct file *file) +static int ab8500_gpadc_usb_id_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_gpadc_btemp_ball_print, inode->i_private); + return single_open(file, ab8500_gpadc_usb_id_print, inode->i_private); } -static const struct file_operations ab8500_gpadc_btemp_ball_fops = { - .open = ab8500_gpadc_btemp_ball_open, +static const struct file_operations ab8500_gpadc_usb_id_fops = { + .open = ab8500_gpadc_usb_id_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_main_charger_v_print(struct seq_file *s, void *p) +static int ab8540_gpadc_xtal_temp_print(struct seq_file *s, void *p) { - int main_charger_v_raw; - int main_charger_v_convert; + int xtal_temp_raw; + int xtal_temp_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V); - main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, - MAIN_CHARGER_V, main_charger_v_raw); + xtal_temp_raw = ab8500_gpadc_read_raw(gpadc, XTAL_TEMP, + avg_sample, trig_edge, trig_timer, conv_type); + xtal_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, XTAL_TEMP, + xtal_temp_raw); return seq_printf(s, "%d,0x%X\n", - main_charger_v_convert, main_charger_v_raw); + xtal_temp_convert, xtal_temp_raw); } -static int ab8500_gpadc_main_charger_v_open(struct inode *inode, - struct file *file) +static int ab8540_gpadc_xtal_temp_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_gpadc_main_charger_v_print, - inode->i_private); + return single_open(file, ab8540_gpadc_xtal_temp_print, + inode->i_private); } -static const struct file_operations ab8500_gpadc_main_charger_v_fops = { - .open = ab8500_gpadc_main_charger_v_open, +static const struct file_operations ab8540_gpadc_xtal_temp_fops = { + .open = ab8540_gpadc_xtal_temp_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_acc_detect1_print(struct seq_file *s, void *p) +static int ab8540_gpadc_vbat_true_meas_print(struct seq_file *s, void *p) { - int acc_detect1_raw; - int acc_detect1_convert; + int vbat_true_meas_raw; + int vbat_true_meas_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1); - acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1, - acc_detect1_raw); + vbat_true_meas_raw = ab8500_gpadc_read_raw(gpadc, VBAT_TRUE_MEAS, + avg_sample, trig_edge, trig_timer, conv_type); + vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBAT_TRUE_MEAS, + vbat_true_meas_raw); return seq_printf(s, "%d,0x%X\n", - acc_detect1_convert, acc_detect1_raw); + vbat_true_meas_convert, vbat_true_meas_raw); } -static int ab8500_gpadc_acc_detect1_open(struct inode *inode, +static int ab8540_gpadc_vbat_true_meas_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_gpadc_acc_detect1_print, - inode->i_private); + return single_open(file, ab8540_gpadc_vbat_true_meas_print, + inode->i_private); } -static const struct file_operations ab8500_gpadc_acc_detect1_fops = { - .open = ab8500_gpadc_acc_detect1_open, +static const struct file_operations ab8540_gpadc_vbat_true_meas_fops = { + .open = ab8540_gpadc_vbat_true_meas_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_acc_detect2_print(struct seq_file *s, void *p) +static int ab8540_gpadc_bat_ctrl_and_ibat_print(struct seq_file *s, void *p) { - int acc_detect2_raw; - int acc_detect2_convert; + int bat_ctrl_raw; + int bat_ctrl_convert; + int ibat_raw; + int ibat_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2); - acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc, - ACC_DETECT2, acc_detect2_raw); + bat_ctrl_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_CTRL_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); - return seq_printf(s, "%d,0x%X\n", - acc_detect2_convert, acc_detect2_raw); + bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, BAT_CTRL, + bat_ctrl_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + bat_ctrl_convert, bat_ctrl_raw, + ibat_convert, ibat_raw); } -static int ab8500_gpadc_acc_detect2_open(struct inode *inode, +static int ab8540_gpadc_bat_ctrl_and_ibat_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_gpadc_acc_detect2_print, - inode->i_private); + return single_open(file, ab8540_gpadc_bat_ctrl_and_ibat_print, + inode->i_private); } -static const struct file_operations ab8500_gpadc_acc_detect2_fops = { - .open = ab8500_gpadc_acc_detect2_open, +static const struct file_operations ab8540_gpadc_bat_ctrl_and_ibat_fops = { + .open = ab8540_gpadc_bat_ctrl_and_ibat_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_aux1_print(struct seq_file *s, void *p) +static int ab8540_gpadc_vbat_meas_and_ibat_print(struct seq_file *s, void *p) { - int aux1_raw; - int aux1_convert; + int vbat_meas_raw; + int vbat_meas_convert; + int ibat_raw; + int ibat_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1); - aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1, - aux1_raw); - - return seq_printf(s, "%d,0x%X\n", - aux1_convert, aux1_raw); + vbat_meas_raw = ab8500_gpadc_double_read_raw(gpadc, VBAT_MEAS_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + vbat_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, + vbat_meas_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + vbat_meas_convert, vbat_meas_raw, + ibat_convert, ibat_raw); } -static int ab8500_gpadc_aux1_open(struct inode *inode, struct file *file) +static int ab8540_gpadc_vbat_meas_and_ibat_open(struct inode *inode, + struct file *file) { - return single_open(file, ab8500_gpadc_aux1_print, inode->i_private); + return single_open(file, ab8540_gpadc_vbat_meas_and_ibat_print, + inode->i_private); } -static const struct file_operations ab8500_gpadc_aux1_fops = { - .open = ab8500_gpadc_aux1_open, +static const struct file_operations ab8540_gpadc_vbat_meas_and_ibat_fops = { + .open = ab8540_gpadc_vbat_meas_and_ibat_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_aux2_print(struct seq_file *s, void *p) +static int ab8540_gpadc_vbat_true_meas_and_ibat_print(struct seq_file *s, void *p) { - int aux2_raw; - int aux2_convert; + int vbat_true_meas_raw; + int vbat_true_meas_convert; + int ibat_raw; + int ibat_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2); - aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2, - aux2_raw); - - return seq_printf(s, "%d,0x%X\n", - aux2_convert, aux2_raw); + vbat_true_meas_raw = ab8500_gpadc_double_read_raw(gpadc, + VBAT_TRUE_MEAS_AND_IBAT, avg_sample, trig_edge, + trig_timer, conv_type, &ibat_raw); + vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, + VBAT_TRUE_MEAS, vbat_true_meas_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + vbat_true_meas_convert, vbat_true_meas_raw, + ibat_convert, ibat_raw); } -static int ab8500_gpadc_aux2_open(struct inode *inode, struct file *file) +static int ab8540_gpadc_vbat_true_meas_and_ibat_open(struct inode *inode, + struct file *file) { - return single_open(file, ab8500_gpadc_aux2_print, inode->i_private); + return single_open(file, ab8540_gpadc_vbat_true_meas_and_ibat_print, + inode->i_private); } -static const struct file_operations ab8500_gpadc_aux2_fops = { - .open = ab8500_gpadc_aux2_open, +static const struct file_operations ab8540_gpadc_vbat_true_meas_and_ibat_fops = { + .open = ab8540_gpadc_vbat_true_meas_and_ibat_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_main_bat_v_print(struct seq_file *s, void *p) +static int ab8540_gpadc_bat_temp_and_ibat_print(struct seq_file *s, void *p) { - int main_bat_v_raw; - int main_bat_v_convert; + int bat_temp_raw; + int bat_temp_convert; + int ibat_raw; + int ibat_convert; struct ab8500_gpadc *gpadc; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V); - main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, - main_bat_v_raw); - - return seq_printf(s, "%d,0x%X\n", - main_bat_v_convert, main_bat_v_raw); + bat_temp_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_TEMP_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + bat_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, + bat_temp_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + bat_temp_convert, bat_temp_raw, + ibat_convert, ibat_raw); } -static int ab8500_gpadc_main_bat_v_open(struct inode *inode, +static int ab8540_gpadc_bat_temp_and_ibat_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_gpadc_main_bat_v_print, inode->i_private); + return single_open(file, ab8540_gpadc_bat_temp_and_ibat_print, + inode->i_private); } -static const struct file_operations ab8500_gpadc_main_bat_v_fops = { - .open = ab8500_gpadc_main_bat_v_open, +static const struct file_operations ab8540_gpadc_bat_temp_and_ibat_fops = { + .open = ab8540_gpadc_bat_temp_and_ibat_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_vbus_v_print(struct seq_file *s, void *p) +static int ab8540_gpadc_otp_cal_print(struct seq_file *s, void *p) { - int vbus_v_raw; - int vbus_v_convert; struct ab8500_gpadc *gpadc; + u16 vmain_l, vmain_h, btemp_l, btemp_h; + u16 vbat_l, vbat_h, ibat_l, ibat_h; gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - vbus_v_raw = ab8500_gpadc_read_raw(gpadc, VBUS_V); - vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V, - vbus_v_raw); - - return seq_printf(s, "%d,0x%X\n", - vbus_v_convert, vbus_v_raw); + ab8540_gpadc_get_otp(gpadc, &vmain_l, &vmain_h, &btemp_l, &btemp_h, + &vbat_l, &vbat_h, &ibat_l, &ibat_h); + return seq_printf(s, "VMAIN_L:0x%X\n" + "VMAIN_H:0x%X\n" + "BTEMP_L:0x%X\n" + "BTEMP_H:0x%X\n" + "VBAT_L:0x%X\n" + "VBAT_H:0x%X\n" + "IBAT_L:0x%X\n" + "IBAT_H:0x%X\n", + vmain_l, vmain_h, btemp_l, btemp_h, vbat_l, vbat_h, ibat_l, ibat_h); } -static int ab8500_gpadc_vbus_v_open(struct inode *inode, struct file *file) +static int ab8540_gpadc_otp_cal_open(struct inode *inode, struct file *file) { - return single_open(file, ab8500_gpadc_vbus_v_print, inode->i_private); + return single_open(file, ab8540_gpadc_otp_cal_print, inode->i_private); } -static const struct file_operations ab8500_gpadc_vbus_v_fops = { - .open = ab8500_gpadc_vbus_v_open, +static const struct file_operations ab8540_gpadc_otp_calib_fops = { + .open = ab8540_gpadc_otp_cal_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_main_charger_c_print(struct seq_file *s, void *p) +static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p) { - int main_charger_c_raw; - int main_charger_c_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C); - main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, - MAIN_CHARGER_C, main_charger_c_raw); + return seq_printf(s, "%d\n", avg_sample); +} - return seq_printf(s, "%d,0x%X\n", - main_charger_c_convert, main_charger_c_raw); +static int ab8500_gpadc_avg_sample_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_avg_sample_print, + inode->i_private); } -static int ab8500_gpadc_main_charger_c_open(struct inode *inode, - struct file *file) +static ssize_t ab8500_gpadc_avg_sample_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) { - return single_open(file, ab8500_gpadc_main_charger_c_print, - inode->i_private); + struct device *dev = ((struct seq_file *)(file->private_data))->private; + unsigned long user_avg_sample; + int err; + + err = kstrtoul_from_user(user_buf, count, 0, &user_avg_sample); + if (err) + return err; + + if ((user_avg_sample == SAMPLE_1) || (user_avg_sample == SAMPLE_4) + || (user_avg_sample == SAMPLE_8) + || (user_avg_sample == SAMPLE_16)) { + avg_sample = (u8) user_avg_sample; + } else { + dev_err(dev, "debugfs error input: " + "should be egal to 1, 4, 8 or 16\n"); + return -EINVAL; + } + + return count; } -static const struct file_operations ab8500_gpadc_main_charger_c_fops = { - .open = ab8500_gpadc_main_charger_c_open, +static const struct file_operations ab8500_gpadc_avg_sample_fops = { + .open = ab8500_gpadc_avg_sample_open, .read = seq_read, + .write = ab8500_gpadc_avg_sample_write, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_usb_charger_c_print(struct seq_file *s, void *p) +static int ab8500_gpadc_trig_edge_print(struct seq_file *s, void *p) { - int usb_charger_c_raw; - int usb_charger_c_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C); - usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc, - USB_CHARGER_C, usb_charger_c_raw); + return seq_printf(s, "%d\n", trig_edge); +} - return seq_printf(s, "%d,0x%X\n", - usb_charger_c_convert, usb_charger_c_raw); +static int ab8500_gpadc_trig_edge_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_trig_edge_print, + inode->i_private); } -static int ab8500_gpadc_usb_charger_c_open(struct inode *inode, - struct file *file) +static ssize_t ab8500_gpadc_trig_edge_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) { - return single_open(file, ab8500_gpadc_usb_charger_c_print, - inode->i_private); + struct device *dev = ((struct seq_file *)(file->private_data))->private; + unsigned long user_trig_edge; + int err; + + err = kstrtoul_from_user(user_buf, count, 0, &user_trig_edge); + if (err) + return err; + + if ((user_trig_edge == RISING_EDGE) + || (user_trig_edge == FALLING_EDGE)) { + trig_edge = (u8) user_trig_edge; + } else { + dev_err(dev, "Wrong input:\n" + "Enter 0. Rising edge\n" + "Enter 1. Falling edge\n"); + return -EINVAL; + } + + return count; } -static const struct file_operations ab8500_gpadc_usb_charger_c_fops = { - .open = ab8500_gpadc_usb_charger_c_open, +static const struct file_operations ab8500_gpadc_trig_edge_fops = { + .open = ab8500_gpadc_trig_edge_open, .read = seq_read, + .write = ab8500_gpadc_trig_edge_write, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_bk_bat_v_print(struct seq_file *s, void *p) +static int ab8500_gpadc_trig_timer_print(struct seq_file *s, void *p) { - int bk_bat_v_raw; - int bk_bat_v_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V); - bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, - BK_BAT_V, bk_bat_v_raw); + return seq_printf(s, "%d\n", trig_timer); +} - return seq_printf(s, "%d,0x%X\n", - bk_bat_v_convert, bk_bat_v_raw); +static int ab8500_gpadc_trig_timer_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_trig_timer_print, + inode->i_private); } -static int ab8500_gpadc_bk_bat_v_open(struct inode *inode, struct file *file) +static ssize_t ab8500_gpadc_trig_timer_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) { - return single_open(file, ab8500_gpadc_bk_bat_v_print, inode->i_private); + struct device *dev = ((struct seq_file *)(file->private_data))->private; + unsigned long user_trig_timer; + int err; + + err = kstrtoul_from_user(user_buf, count, 0, &user_trig_timer); + if (err) + return err; + + if ((user_trig_timer >= 0) && (user_trig_timer <= 255)) { + trig_timer = (u8) user_trig_timer; + } else { + dev_err(dev, "debugfs error input: " + "should be beetween 0 to 255\n"); + return -EINVAL; + } + + return count; } -static const struct file_operations ab8500_gpadc_bk_bat_v_fops = { - .open = ab8500_gpadc_bk_bat_v_open, +static const struct file_operations ab8500_gpadc_trig_timer_fops = { + .open = ab8500_gpadc_trig_timer_open, .read = seq_read, + .write = ab8500_gpadc_trig_timer_write, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, }; -static int ab8500_gpadc_die_temp_print(struct seq_file *s, void *p) +static int ab8500_gpadc_conv_type_print(struct seq_file *s, void *p) { - int die_temp_raw; - int die_temp_convert; - struct ab8500_gpadc *gpadc; - - gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); - die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP); - die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP, - die_temp_raw); + return seq_printf(s, "%d\n", conv_type); +} - return seq_printf(s, "%d,0x%X\n", - die_temp_convert, die_temp_raw); +static int ab8500_gpadc_conv_type_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8500_gpadc_conv_type_print, + inode->i_private); } -static int ab8500_gpadc_die_temp_open(struct inode *inode, struct file *file) +static ssize_t ab8500_gpadc_conv_type_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) { - return single_open(file, ab8500_gpadc_die_temp_print, inode->i_private); + struct device *dev = ((struct seq_file *)(file->private_data))->private; + unsigned long user_conv_type; + int err; + + err = kstrtoul_from_user(user_buf, count, 0, &user_conv_type); + if (err) + return err; + + if ((user_conv_type == ADC_SW) + || (user_conv_type == ADC_HW)) { + conv_type = (u8) user_conv_type; + } else { + dev_err(dev, "Wrong input:\n" + "Enter 0. ADC SW conversion\n" + "Enter 1. ADC HW conversion\n"); + return -EINVAL; + } + + return count; } -static const struct file_operations ab8500_gpadc_die_temp_fops = { - .open = ab8500_gpadc_die_temp_open, +static const struct file_operations ab8500_gpadc_conv_type_fops = { + .open = ab8500_gpadc_conv_type_open, .read = seq_read, + .write = ab8500_gpadc_conv_type_write, .llseek = seq_lseek, .release = single_release, .owner = THIS_MODULE, @@ -1352,7 +2745,7 @@ static int ab8500_subscribe_unsubscribe_open(struct inode *inode, struct file *file) { return single_open(file, ab8500_subscribe_unsubscribe_print, - inode->i_private); + inode->i_private); } /* @@ -1382,21 +2775,14 @@ static ssize_t ab8500_subscribe_write(struct file *file, size_t count, loff_t *ppos) { struct device *dev = ((struct seq_file *)(file->private_data))->private; - char buf[32]; - int buf_size; unsigned long user_val; int err; unsigned int irq_index; - /* Get userspace string and assure termination */ - buf_size = min(count, (sizeof(buf)-1)); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - buf[buf_size] = 0; - - err = strict_strtoul(buf, 0, &user_val); + err = kstrtoul_from_user(user_buf, count, 0, &user_val); if (err) - return -EINVAL; + return err; + if (user_val < irq_first) { dev_err(dev, "debugfs error input < %d\n", irq_first); return -EINVAL; @@ -1416,7 +2802,7 @@ static ssize_t ab8500_subscribe_write(struct file *file, */ dev_attr[irq_index] = kmalloc(sizeof(struct device_attribute), GFP_KERNEL); - event_name[irq_index] = kmalloc(buf_size, GFP_KERNEL); + event_name[irq_index] = kmalloc(count, GFP_KERNEL); sprintf(event_name[irq_index], "%lu", user_val); dev_attr[irq_index]->show = show_irq; dev_attr[irq_index]->store = NULL; @@ -1438,7 +2824,7 @@ static ssize_t ab8500_subscribe_write(struct file *file, return err; } - return buf_size; + return count; } static ssize_t ab8500_unsubscribe_write(struct file *file, @@ -1446,21 +2832,14 @@ static ssize_t ab8500_unsubscribe_write(struct file *file, size_t count, loff_t *ppos) { struct device *dev = ((struct seq_file *)(file->private_data))->private; - char buf[32]; - int buf_size; unsigned long user_val; int err; unsigned int irq_index; - /* Get userspace string and assure termination */ - buf_size = min(count, (sizeof(buf)-1)); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - buf[buf_size] = 0; - - err = strict_strtoul(buf, 0, &user_val); + err = kstrtoul_from_user(user_buf, count, 0, &user_val); if (err) - return -EINVAL; + return err; + if (user_val < irq_first) { dev_err(dev, "debugfs error input < %d\n", irq_first); return -EINVAL; @@ -1485,7 +2864,7 @@ static ssize_t ab8500_unsubscribe_write(struct file *file, kfree(event_name[irq_index]); kfree(dev_attr[irq_index]); - return buf_size; + return count; } /* @@ -1583,7 +2962,7 @@ static int ab8500_debug_probe(struct platform_device *plf) irq_first = platform_get_irq_byname(plf, "IRQ_FIRST"); if (irq_first < 0) { dev_err(&plf->dev, "First irq not found, err %d\n", - irq_first); + irq_first); ret = irq_first; goto out_freeevent_name; } @@ -1591,9 +2970,9 @@ static int ab8500_debug_probe(struct platform_device *plf) irq_last = platform_get_irq_byname(plf, "IRQ_LAST"); if (irq_last < 0) { dev_err(&plf->dev, "Last irq not found, err %d\n", - irq_last); + irq_last); ret = irq_last; - goto out_freeevent_name; + goto out_freeevent_name; } ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL); @@ -1601,124 +2980,198 @@ static int ab8500_debug_probe(struct platform_device *plf) goto err; ab8500_gpadc_dir = debugfs_create_dir(AB8500_ADC_NAME_STRING, - ab8500_dir); + ab8500_dir); if (!ab8500_gpadc_dir) goto err; file = debugfs_create_file("all-bank-registers", S_IRUGO, - ab8500_dir, &plf->dev, &ab8500_registers_fops); + ab8500_dir, &plf->dev, &ab8500_registers_fops); if (!file) goto err; file = debugfs_create_file("all-banks", S_IRUGO, - ab8500_dir, &plf->dev, &ab8500_all_banks_fops); + ab8500_dir, &plf->dev, &ab8500_all_banks_fops); if (!file) goto err; - file = debugfs_create_file("register-bank", (S_IRUGO | S_IWUSR), - ab8500_dir, &plf->dev, &ab8500_bank_fops); + file = debugfs_create_file("register-bank", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_dir, &plf->dev, &ab8500_bank_fops); if (!file) goto err; - file = debugfs_create_file("register-address", (S_IRUGO | S_IWUSR), - ab8500_dir, &plf->dev, &ab8500_address_fops); + file = debugfs_create_file("register-address", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_dir, &plf->dev, &ab8500_address_fops); if (!file) goto err; - file = debugfs_create_file("register-value", (S_IRUGO | S_IWUSR), - ab8500_dir, &plf->dev, &ab8500_val_fops); + file = debugfs_create_file("register-value", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_dir, &plf->dev, &ab8500_val_fops); if (!file) goto err; - file = debugfs_create_file("irq-subscribe", (S_IRUGO | S_IWUSR), - ab8500_dir, &plf->dev, &ab8500_subscribe_fops); + file = debugfs_create_file("irq-subscribe", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_dir, &plf->dev, &ab8500_subscribe_fops); if (!file) goto err; - if (is_ab8500(ab8500)) + if (is_ab8500(ab8500)) { + debug_ranges = ab8500_debug_ranges; num_interrupt_lines = AB8500_NR_IRQS; - else if (is_ab8505(ab8500)) + } else if (is_ab8505(ab8500)) { + debug_ranges = ab8505_debug_ranges; num_interrupt_lines = AB8505_NR_IRQS; - else if (is_ab9540(ab8500)) + } else if (is_ab9540(ab8500)) { + debug_ranges = ab8505_debug_ranges; num_interrupt_lines = AB9540_NR_IRQS; + } else if (is_ab8540(ab8500)) { + debug_ranges = ab8540_debug_ranges; + num_interrupt_lines = AB8540_NR_IRQS; + } file = debugfs_create_file("interrupts", (S_IRUGO), - ab8500_dir, &plf->dev, &ab8500_interrupts_fops); + ab8500_dir, &plf->dev, &ab8500_interrupts_fops); + if (!file) + goto err; + + file = debugfs_create_file("irq-unsubscribe", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_dir, &plf->dev, &ab8500_unsubscribe_fops); if (!file) goto err; - file = debugfs_create_file("irq-unsubscribe", (S_IRUGO | S_IWUSR), - ab8500_dir, &plf->dev, &ab8500_unsubscribe_fops); + file = debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_dir, &plf->dev, &ab8500_hwreg_fops); if (!file) goto err; - file = debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR), - ab8500_dir, &plf->dev, &ab8500_hwreg_fops); + file = debugfs_create_file("all-modem-registers", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_dir, &plf->dev, &ab8500_modem_fops); if (!file) goto err; - file = debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_bat_ctrl_fops); + file = debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_bat_ctrl_fops); if (!file) goto err; - file = debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_btemp_ball_fops); + file = debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_btemp_ball_fops); if (!file) goto err; - file = debugfs_create_file("main_charger_v", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_charger_v_fops); + file = debugfs_create_file("main_charger_v", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_charger_v_fops); if (!file) goto err; - file = debugfs_create_file("acc_detect1", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_acc_detect1_fops); + file = debugfs_create_file("acc_detect1", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_acc_detect1_fops); if (!file) goto err; - file = debugfs_create_file("acc_detect2", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_acc_detect2_fops); + file = debugfs_create_file("acc_detect2", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_acc_detect2_fops); if (!file) goto err; - file = debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_aux1_fops); + file = debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_aux1_fops); if (!file) goto err; - file = debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_aux2_fops); + file = debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_aux2_fops); if (!file) goto err; - file = debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_bat_v_fops); + file = debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_bat_v_fops); if (!file) goto err; - file = debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_vbus_v_fops); + file = debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_vbus_v_fops); if (!file) goto err; - file = debugfs_create_file("main_charger_c", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_charger_c_fops); + file = debugfs_create_file("main_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_charger_c_fops); + if (!file) + goto err; + + file = debugfs_create_file("usb_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_usb_charger_c_fops); + if (!file) + goto err; + + file = debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_bk_bat_v_fops); + if (!file) + goto err; + + file = debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_die_temp_fops); + if (!file) + goto err; + + file = debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_usb_id_fops); + if (!file) + goto err; + + if (is_ab8540(ab8500)) { + file = debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8540_gpadc_xtal_temp_fops); + if (!file) + goto err; + file = debugfs_create_file("vbattruemeas", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, + &ab8540_gpadc_vbat_true_meas_fops); + if (!file) + goto err; + file = debugfs_create_file("batctrl_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, &ab8540_gpadc_bat_ctrl_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("vbatmeas_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, + &ab8540_gpadc_vbat_meas_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("vbattruemeas_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, + &ab8540_gpadc_vbat_true_meas_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("battemp_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, &ab8540_gpadc_bat_temp_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("otp_calib", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8540_gpadc_otp_calib_fops); + if (!file) + goto err; + } + file = debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_avg_sample_fops); if (!file) goto err; - file = debugfs_create_file("usb_charger_c", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_usb_charger_c_fops); + file = debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_trig_edge_fops); if (!file) goto err; - file = debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_bk_bat_v_fops); + file = debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_trig_timer_fops); if (!file) goto err; - file = debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR), - ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_die_temp_fops); + file = debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP), + ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_conv_type_fops); if (!file) goto err; diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c index 5f341a5..65f7228 100644 --- a/drivers/mfd/ab8500-gpadc.c +++ b/drivers/mfd/ab8500-gpadc.c @@ -37,6 +37,13 @@ #define AB8500_GPADC_AUTODATAL_REG 0x07 #define AB8500_GPADC_AUTODATAH_REG 0x08 #define AB8500_GPADC_MUX_CTRL_REG 0x09 +#define AB8540_GPADC_MANDATA2L_REG 0x09 +#define AB8540_GPADC_MANDATA2H_REG 0x0A +#define AB8540_GPADC_APEAAX_REG 0x10 +#define AB8540_GPADC_APEAAT_REG 0x11 +#define AB8540_GPADC_APEAAM_REG 0x12 +#define AB8540_GPADC_APEAAH_REG 0x13 +#define AB8540_GPADC_APEAAL_REG 0x14 /* * OTP register offsets @@ -49,19 +56,29 @@ #define AB8500_GPADC_CAL_5 0x13 #define AB8500_GPADC_CAL_6 0x14 #define AB8500_GPADC_CAL_7 0x15 +/* New calibration for 8540 */ +#define AB8540_GPADC_OTP4_REG_7 0x38 +#define AB8540_GPADC_OTP4_REG_6 0x39 +#define AB8540_GPADC_OTP4_REG_5 0x3A /* gpadc constants */ #define EN_VINTCORE12 0x04 #define EN_VTVOUT 0x02 #define EN_GPADC 0x01 #define DIS_GPADC 0x00 -#define SW_AVG_16 0x60 +#define AVG_1 0x00 +#define AVG_4 0x20 +#define AVG_8 0x40 +#define AVG_16 0x60 #define ADC_SW_CONV 0x04 #define EN_ICHAR 0x80 #define BTEMP_PULL_UP 0x08 #define EN_BUF 0x40 #define DIS_ZERO 0x00 #define GPADC_BUSY 0x01 +#define EN_FALLING 0x10 +#define EN_TRIG_EDGE 0x02 +#define EN_VBIAS_XTAL_TEMP 0x02 /* GPADC constants from AB8500 spec, UM0836 */ #define ADC_RESOLUTION 1024 @@ -80,8 +97,21 @@ #define ADC_CH_BKBAT_MIN 0 #define ADC_CH_BKBAT_MAX 3200 +/* GPADC constants from AB8540 spec */ +#define ADC_CH_IBAT_MIN (-6000) /* mA range measured by ADC for ibat*/ +#define ADC_CH_IBAT_MAX 6000 +#define ADC_CH_IBAT_MIN_V (-60) /* mV range measured by ADC for ibat*/ +#define ADC_CH_IBAT_MAX_V 60 +#define IBAT_VDROP_L (-56) /* mV */ +#define IBAT_VDROP_H 56 + /* This is used to not lose precision when dividing to get gain and offset */ -#define CALIB_SCALE 1000 +#define CALIB_SCALE 1000 +/* + * Number of bits shift used to not lose precision + * when dividing to get ibat gain. + */ +#define CALIB_SHIFT_IBAT 20 /* Time in ms before disabling regulator */ #define GPADC_AUDOSUSPEND_DELAY 1 @@ -92,6 +122,7 @@ enum cal_channels { ADC_INPUT_VMAIN = 0, ADC_INPUT_BTEMP, ADC_INPUT_VBAT, + ADC_INPUT_IBAT, NBR_CAL_INPUTS, }; @@ -102,8 +133,10 @@ enum cal_channels { * @offset: Offset of the ADC channel */ struct adc_cal_data { - u64 gain; - u64 offset; + s64 gain; + s64 offset; + u16 otp_calib_hi; + u16 otp_calib_lo; }; /** @@ -116,7 +149,10 @@ struct adc_cal_data { * the completion of gpadc conversion * @ab8500_gpadc_lock: structure of type mutex * @regu: pointer to the struct regulator - * @irq: interrupt number that is used by gpadc + * @irq_sw: interrupt number that is used by gpadc for Sw + * conversion + * @irq_hw: interrupt number that is used by gpadc for Hw + * conversion * @cal_data array of ADC calibration data structs */ struct ab8500_gpadc { @@ -126,7 +162,8 @@ struct ab8500_gpadc { struct completion ab8500_gpadc_complete; struct mutex ab8500_gpadc_lock; struct regulator *regu; - int irq; + int irq_sw; + int irq_hw; struct adc_cal_data cal_data[NBR_CAL_INPUTS]; }; @@ -171,6 +208,7 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, gpadc->cal_data[ADC_INPUT_VMAIN].offset) / CALIB_SCALE; break; + case XTAL_TEMP: case BAT_CTRL: case BTEMP_BALL: case ACC_DETECT1: @@ -189,6 +227,7 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, break; case MAIN_BAT_V: + case VBAT_TRUE_MEAS: /* For some reason we don't have calibrated data */ if (!gpadc->cal_data[ADC_INPUT_VBAT].gain) { res = ADC_CH_VBAT_MIN + (ADC_CH_VBAT_MAX - @@ -232,6 +271,20 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, ADC_RESOLUTION; break; + case IBAT_VIRTUAL_CHANNEL: + /* For some reason we don't have calibrated data */ + if (!gpadc->cal_data[ADC_INPUT_IBAT].gain) { + res = ADC_CH_IBAT_MIN + (ADC_CH_IBAT_MAX - + ADC_CH_IBAT_MIN) * ad_value / + ADC_RESOLUTION; + break; + } + /* Here we can use the calibrated data */ + res = (int) (ad_value * gpadc->cal_data[ADC_INPUT_IBAT].gain + + gpadc->cal_data[ADC_INPUT_IBAT].offset) + >> CALIB_SHIFT_IBAT; + break; + default: dev_err(gpadc->dev, "unknown channel, not possible to convert\n"); @@ -244,25 +297,35 @@ int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, EXPORT_SYMBOL(ab8500_gpadc_ad_to_voltage); /** - * ab8500_gpadc_convert() - gpadc conversion + * ab8500_gpadc_sw_hw_convert() - gpadc conversion * @channel: analog channel to be converted to digital data + * @avg_sample: number of ADC sample to average + * @trig_egde: selected ADC trig edge + * @trig_timer: selected ADC trigger delay timer + * @conv_type: selected conversion type (HW or SW conversion) * * This function converts the selected analog i/p to digital * data. */ -int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel) +int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type) { int ad_value; int voltage; - ad_value = ab8500_gpadc_read_raw(gpadc, channel); - if (ad_value < 0) { - dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n", channel); + ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample, + trig_edge, trig_timer, conv_type); +/* On failure retry a second time */ + if (ad_value < 0) + ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample, + trig_edge, trig_timer, conv_type); +if (ad_value < 0) { + dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n", + channel); return ad_value; } voltage = ab8500_gpadc_ad_to_voltage(gpadc, channel, ad_value); - if (voltage < 0) dev_err(gpadc->dev, "GPADC to voltage conversion failed ch:" " %d AD: 0x%x\n", channel, ad_value); @@ -274,21 +337,46 @@ EXPORT_SYMBOL(ab8500_gpadc_convert); /** * ab8500_gpadc_read_raw() - gpadc read * @channel: analog channel to be read + * @avg_sample: number of ADC sample to average + * @trig_edge: selected trig edge + * @trig_timer: selected ADC trigger delay timer + * @conv_type: selected conversion type (HW or SW conversion) * - * This function obtains the raw ADC value, this then needs - * to be converted by calling ab8500_gpadc_ad_to_voltage() + * This function obtains the raw ADC value for an hardware conversion, + * this then needs to be converted by calling ab8500_gpadc_ad_to_voltage() */ -int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) +int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type) +{ + int raw_data; + raw_data = ab8500_gpadc_double_read_raw(gpadc, channel, + avg_sample, trig_edge, trig_timer, conv_type, NULL); + return raw_data; +} + +int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type, + int *ibat) { int ret; int looplimit = 0; - u8 val, low_data, high_data; + unsigned long completion_timeout; + u8 val, low_data, high_data, low_data2, high_data2; + u8 val_reg1 = 0; + unsigned int delay_min = 0; + unsigned int delay_max = 0; + u8 data_low_addr, data_high_addr; if (!gpadc) return -ENODEV; - mutex_lock(&gpadc->ab8500_gpadc_lock); + /* check if convertion is supported */ + if ((gpadc->irq_sw < 0) && (conv_type == ADC_SW)) + return -ENOTSUPP; + if ((gpadc->irq_hw < 0) && (conv_type == ADC_HW)) + return -ENOTSUPP; + mutex_lock(&gpadc->ab8500_gpadc_lock); /* Enable VTVout LDO this is required for GPADC */ pm_runtime_get_sync(gpadc->dev); @@ -309,16 +397,34 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) } /* Enable GPADC */ - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, EN_GPADC, EN_GPADC); - if (ret < 0) { - dev_err(gpadc->dev, "gpadc_conversion: enable gpadc failed\n"); - goto out; + val_reg1 |= EN_GPADC; + + /* Select the channel source and set average samples */ + switch (avg_sample) { + case SAMPLE_1: + val = channel | AVG_1; + break; + case SAMPLE_4: + val = channel | AVG_4; + break; + case SAMPLE_8: + val = channel | AVG_8; + break; + default: + val = channel | AVG_16; + break; } - /* Select the channel source and set average samples to 16 */ - ret = abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_CTRL2_REG, (channel | SW_AVG_16)); + if (conv_type == ADC_HW) { + ret = abx500_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL3_REG, val); + val_reg1 |= EN_TRIG_EDGE; + if (trig_edge) + val_reg1 |= EN_FALLING; + } + else + ret = abx500_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL2_REG, val); if (ret < 0) { dev_err(gpadc->dev, "gpadc_conversion: set avg samples failed\n"); @@ -333,71 +439,129 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) switch (channel) { case MAIN_CHARGER_C: case USB_CHARGER_C: - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, - EN_BUF | EN_ICHAR, - EN_BUF | EN_ICHAR); + val_reg1 |= EN_BUF | EN_ICHAR; break; case BTEMP_BALL: if (!is_ab8500_2p0_or_earlier(gpadc->parent)) { - /* Turn on btemp pull-up on ABB 3.0 */ - ret = abx500_mask_and_set_register_interruptible( - gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, - EN_BUF | BTEMP_PULL_UP, - EN_BUF | BTEMP_PULL_UP); - - /* - * Delay might be needed for ABB8500 cut 3.0, if not, remove - * when hardware will be available - */ - usleep_range(1000, 1000); + val_reg1 |= EN_BUF | BTEMP_PULL_UP; + /* + * Delay might be needed for ABB8500 cut 3.0, if not, + * remove when hardware will be availible + */ + delay_min = 1000; /* Delay in micro seconds */ + delay_max = 10000; /* large range to optimise sleep mode */ break; } /* Intentional fallthrough */ default: - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, EN_BUF, EN_BUF); + val_reg1 |= EN_BUF; break; } + + /* Write configuration to register */ + ret = abx500_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, val_reg1); if (ret < 0) { dev_err(gpadc->dev, - "gpadc_conversion: select falling edge failed\n"); + "gpadc_conversion: set Control register failed\n"); goto out; } - ret = abx500_mask_and_set_register_interruptible(gpadc->dev, - AB8500_GPADC, AB8500_GPADC_CTRL1_REG, ADC_SW_CONV, ADC_SW_CONV); - if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: start s/w conversion failed\n"); - goto out; + if (delay_min != 0) + usleep_range(delay_min, delay_max); + + if (conv_type == ADC_HW) { + /* Set trigger delay timer */ + ret = abx500_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_AUTO_TIMER_REG, trig_timer); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: trig timer failed\n"); + goto out; + } + completion_timeout = 2 * HZ; + data_low_addr = AB8500_GPADC_AUTODATAL_REG; + data_high_addr = AB8500_GPADC_AUTODATAH_REG; + } else { + /* Start SW conversion */ + ret = abx500_mask_and_set_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8500_GPADC_CTRL1_REG, + ADC_SW_CONV, ADC_SW_CONV); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: start s/w conv failed\n"); + goto out; + } + completion_timeout = msecs_to_jiffies(CONVERSION_TIME); + data_low_addr = AB8500_GPADC_MANDATAL_REG; + data_high_addr = AB8500_GPADC_MANDATAH_REG; } + /* wait for completion of conversion */ if (!wait_for_completion_timeout(&gpadc->ab8500_gpadc_complete, - msecs_to_jiffies(CONVERSION_TIME))) { + completion_timeout)) { dev_err(gpadc->dev, - "timeout: didn't receive GPADC conversion interrupt\n"); + "timeout didn't receive GPADC conv interrupt\n"); ret = -EINVAL; goto out; } /* Read the converted RAW data */ - ret = abx500_get_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_MANDATAL_REG, &low_data); + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, data_low_addr, &low_data); if (ret < 0) { dev_err(gpadc->dev, "gpadc_conversion: read low data failed\n"); goto out; } - ret = abx500_get_register_interruptible(gpadc->dev, AB8500_GPADC, - AB8500_GPADC_MANDATAH_REG, &high_data); + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, data_high_addr, &high_data); if (ret < 0) { - dev_err(gpadc->dev, - "gpadc_conversion: read high data failed\n"); + dev_err(gpadc->dev, "gpadc_conversion: read high data failed\n"); goto out; } + /* Check if double convertion is required */ + if ((channel == BAT_CTRL_AND_IBAT) || + (channel == VBAT_MEAS_AND_IBAT) || + (channel == VBAT_TRUE_MEAS_AND_IBAT) || + (channel == BAT_TEMP_AND_IBAT)) { + + if (conv_type == ADC_HW) { + /* not supported */ + ret = -ENOTSUPP; + dev_err(gpadc->dev, + "gpadc_conversion: only SW double conversion supported\n"); + goto out; + } else { + /* Read the converted RAW data 2 */ + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8540_GPADC_MANDATA2L_REG, + &low_data2); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read sw low data 2 failed\n"); + goto out; + } + + ret = abx500_get_register_interruptible(gpadc->dev, + AB8500_GPADC, AB8540_GPADC_MANDATA2H_REG, + &high_data2); + if (ret < 0) { + dev_err(gpadc->dev, + "gpadc_conversion: read sw high data 2 failed\n"); + goto out; + } + if (ibat != NULL) { + *ibat = (high_data2 << 8) | low_data2; + } else { + dev_warn(gpadc->dev, + "gpadc_conversion: ibat not stored\n"); + } + + } + } + /* Disable GPADC */ ret = abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, AB8500_GPADC_CTRL1_REG, DIS_GPADC); @@ -406,6 +570,7 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel) goto out; } + /* Disable VTVout LDO this is required for GPADC */ pm_runtime_mark_last_busy(gpadc->dev); pm_runtime_put_autosuspend(gpadc->dev); @@ -422,9 +587,7 @@ out: */ (void) abx500_set_register_interruptible(gpadc->dev, AB8500_GPADC, AB8500_GPADC_CTRL1_REG, DIS_GPADC); - pm_runtime_put(gpadc->dev); - mutex_unlock(&gpadc->ab8500_gpadc_lock); dev_err(gpadc->dev, "gpadc_conversion: Failed to AD convert channel %d\n", channel); @@ -433,16 +596,16 @@ out: EXPORT_SYMBOL(ab8500_gpadc_read_raw); /** - * ab8500_bm_gpswadcconvend_handler() - isr for s/w gpadc conversion completion + * ab8500_bm_gpadcconvend_handler() - isr for gpadc conversion completion * @irq: irq number * @data: pointer to the data passed during request irq * - * This is a interrupt service routine for s/w gpadc conversion completion. + * This is a interrupt service routine for gpadc conversion completion. * Notifies the gpadc completion is completed and the converted raw value * can be read from the registers. * Returns IRQ status(IRQ_HANDLED) */ -static irqreturn_t ab8500_bm_gpswadcconvend_handler(int irq, void *_gpadc) +static irqreturn_t ab8500_bm_gpadcconvend_handler(int irq, void *_gpadc) { struct ab8500_gpadc *gpadc = _gpadc; @@ -461,15 +624,27 @@ static int otp_cal_regs[] = { AB8500_GPADC_CAL_7, }; +static int otp4_cal_regs[] = { + AB8540_GPADC_OTP4_REG_7, + AB8540_GPADC_OTP4_REG_6, + AB8540_GPADC_OTP4_REG_5, +}; + static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) { int i; int ret[ARRAY_SIZE(otp_cal_regs)]; u8 gpadc_cal[ARRAY_SIZE(otp_cal_regs)]; - + int ret_otp4[ARRAY_SIZE(otp4_cal_regs)]; + u8 gpadc_otp4[ARRAY_SIZE(otp4_cal_regs)]; int vmain_high, vmain_low; int btemp_high, btemp_low; int vbat_high, vbat_low; + int ibat_high, ibat_low; + s64 V_gain, V_offset, V2A_gain, V2A_offset; + struct ab8500 *ab8500; + + ab8500 = gpadc->parent; /* First we read all OTP registers and store the error code */ for (i = 0; i < ARRAY_SIZE(otp_cal_regs); i++) { @@ -489,7 +664,7 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) * bt_h/l = btemp_high/low * vb_h/l = vbat_high/low * - * Data bits: + * Data bits 8500/9540: * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 * |.......|.......|.......|.......|.......|.......|.......|....... * | | vm_h9 | vm_h8 @@ -507,6 +682,35 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) * | vb_l5 | vb_l4 | vb_l3 | vb_l2 | vb_l1 | vb_l0 | * |.......|.......|.......|.......|.......|.......|.......|....... * + * Data bits 8540: + * OTP2 + * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vm_h9 | vm_h8 | vm_h7 | vm_h6 | vm_h5 | vm_h4 | vm_h3 | vm_h2 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vm_h1 | vm_h0 | vm_l4 | vm_l3 | vm_l2 | vm_l1 | vm_l0 | bt_h9 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | bt_h8 | bt_h7 | bt_h6 | bt_h5 | bt_h4 | bt_h3 | bt_h2 | bt_h1 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | bt_h0 | bt_l4 | bt_l3 | bt_l2 | bt_l1 | bt_l0 | vb_h9 | vb_h8 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vb_h7 | vb_h6 | vb_h5 | vb_h4 | vb_h3 | vb_h2 | vb_h1 | vb_h0 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | vb_l5 | vb_l4 | vb_l3 | vb_l2 | vb_l1 | vb_l0 | + * |.......|.......|.......|.......|.......|.......|.......|....... + * + * Data bits 8540: + * OTP4 + * | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | | ib_h9 | ib_h8 | ib_h7 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | ib_h6 | ib_h5 | ib_h4 | ib_h3 | ib_h2 | ib_h1 | ib_h0 | ib_l5 + * |.......|.......|.......|.......|.......|.......|.......|....... + * | ib_l4 | ib_l3 | ib_l2 | ib_l1 | ib_l0 | + * * * Ideal output ADC codes corresponding to injected input voltages * during manufacturing is: @@ -519,38 +723,116 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) * vbat_low: Vin = 2380mV / ADC ideal code = 33 */ - /* Calculate gain and offset for VMAIN if all reads succeeded */ - if (!(ret[0] < 0 || ret[1] < 0 || ret[2] < 0)) { - vmain_high = (((gpadc_cal[0] & 0x03) << 8) | - ((gpadc_cal[1] & 0x3F) << 2) | - ((gpadc_cal[2] & 0xC0) >> 6)); + if (is_ab8540(ab8500)) { + /* Calculate gain and offset for VMAIN if all reads succeeded*/ + if (!(ret[1] < 0 || ret[2] < 0)) { + vmain_high = (((gpadc_cal[1] & 0xFF) << 2) | + ((gpadc_cal[2] & 0xC0) >> 6)); + vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = + (u16)vmain_high; + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = + (u16)vmain_low; + + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * + (19500 - 315) / (vmain_high - vmain_low); + gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * + 19500 - (CALIB_SCALE * (19500 - 315) / + (vmain_high - vmain_low)) * vmain_high; + } else { + gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; + } - vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + /* Read IBAT calibration Data */ + for (i = 0; i < ARRAY_SIZE(otp4_cal_regs); i++) { + ret_otp4[i] = abx500_get_register_interruptible( + gpadc->dev, AB8500_OTP_EMUL, + otp4_cal_regs[i], &gpadc_otp4[i]); + if (ret_otp4[i] < 0) + dev_err(gpadc->dev, + "%s: read otp4 reg 0x%02x failed\n", + __func__, otp4_cal_regs[i]); + } - gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * - (19500 - 315) / (vmain_high - vmain_low); + /* Calculate gain and offset for IBAT if all reads succeeded */ + if (!(ret_otp4[0] < 0 || ret_otp4[1] < 0 || ret_otp4[2] < 0)) { + ibat_high = (((gpadc_otp4[0] & 0x07) << 7) | + ((gpadc_otp4[1] & 0xFE) >> 1)); + ibat_low = (((gpadc_otp4[1] & 0x01) << 5) | + ((gpadc_otp4[2] & 0xF8) >> 3)); + + gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi = + (u16)ibat_high; + gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo = + (u16)ibat_low; + + V_gain = ((IBAT_VDROP_H - IBAT_VDROP_L) + << CALIB_SHIFT_IBAT) / (ibat_high - ibat_low); + + V_offset = (IBAT_VDROP_H << CALIB_SHIFT_IBAT) - + (((IBAT_VDROP_H - IBAT_VDROP_L) << + CALIB_SHIFT_IBAT) / (ibat_high - ibat_low)) + * ibat_high; + /* + * Result obtained is in mV (at a scale factor), + * we need to calculate gain and offset to get mA + */ + V2A_gain = (ADC_CH_IBAT_MAX - ADC_CH_IBAT_MIN)/ + (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V); + V2A_offset = ((ADC_CH_IBAT_MAX_V * ADC_CH_IBAT_MIN - + ADC_CH_IBAT_MAX * ADC_CH_IBAT_MIN_V) + << CALIB_SHIFT_IBAT) + / (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V); + + gpadc->cal_data[ADC_INPUT_IBAT].gain = V_gain * V2A_gain; + gpadc->cal_data[ADC_INPUT_IBAT].offset = V_offset * + V2A_gain + V2A_offset; + } else { + gpadc->cal_data[ADC_INPUT_IBAT].gain = 0; + } - gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * 19500 - - (CALIB_SCALE * (19500 - 315) / - (vmain_high - vmain_low)) * vmain_high; + dev_dbg(gpadc->dev, "IBAT gain %llu offset %llu\n", + gpadc->cal_data[ADC_INPUT_IBAT].gain, + gpadc->cal_data[ADC_INPUT_IBAT].offset); } else { - gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; + /* Calculate gain and offset for VMAIN if all reads succeeded */ + if (!(ret[0] < 0 || ret[1] < 0 || ret[2] < 0)) { + vmain_high = (((gpadc_cal[0] & 0x03) << 8) | + ((gpadc_cal[1] & 0x3F) << 2) | + ((gpadc_cal[2] & 0xC0) >> 6)); + vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = + (u16)vmain_high; + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = + (u16)vmain_low; + + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * + (19500 - 315) / (vmain_high - vmain_low); + + gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * + 19500 - (CALIB_SCALE * (19500 - 315) / + (vmain_high - vmain_low)) * vmain_high; + } else { + gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; + } } /* Calculate gain and offset for BTEMP if all reads succeeded */ if (!(ret[2] < 0 || ret[3] < 0 || ret[4] < 0)) { btemp_high = (((gpadc_cal[2] & 0x01) << 9) | - (gpadc_cal[3] << 1) | - ((gpadc_cal[4] & 0x80) >> 7)); - + (gpadc_cal[3] << 1) | ((gpadc_cal[4] & 0x80) >> 7)); btemp_low = ((gpadc_cal[4] & 0x7C) >> 2); + gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi = (u16)btemp_high; + gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo = (u16)btemp_low; + gpadc->cal_data[ADC_INPUT_BTEMP].gain = CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low); - gpadc->cal_data[ADC_INPUT_BTEMP].offset = CALIB_SCALE * 1300 - - (CALIB_SCALE * (1300 - 21) / - (btemp_high - btemp_low)) * btemp_high; + (CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low)) + * btemp_high; } else { gpadc->cal_data[ADC_INPUT_BTEMP].gain = 0; } @@ -560,9 +842,11 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) vbat_high = (((gpadc_cal[4] & 0x03) << 8) | gpadc_cal[5]); vbat_low = ((gpadc_cal[6] & 0xFC) >> 2); + gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi = (u16)vbat_high; + gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo = (u16)vbat_low; + gpadc->cal_data[ADC_INPUT_VBAT].gain = CALIB_SCALE * (4700 - 2380) / (vbat_high - vbat_low); - gpadc->cal_data[ADC_INPUT_VBAT].offset = CALIB_SCALE * 4700 - (CALIB_SCALE * (4700 - 2380) / (vbat_high - vbat_low)) * vbat_high; @@ -608,6 +892,31 @@ static int ab8500_gpadc_runtime_idle(struct device *dev) return 0; } +static int ab8500_gpadc_suspend(struct device *dev) +{ + struct ab8500_gpadc *gpadc = dev_get_drvdata(dev); + + mutex_lock(&gpadc->ab8500_gpadc_lock); + + pm_runtime_get_sync(dev); + + regulator_disable(gpadc->regu); + return 0; +} + +static int ab8500_gpadc_resume(struct device *dev) +{ + struct ab8500_gpadc *gpadc = dev_get_drvdata(dev); + + regulator_enable(gpadc->regu); + + pm_runtime_mark_last_busy(gpadc->dev); + pm_runtime_put_autosuspend(gpadc->dev); + + mutex_unlock(&gpadc->ab8500_gpadc_lock); + return 0; +} + static int ab8500_gpadc_probe(struct platform_device *pdev) { int ret = 0; @@ -619,13 +928,13 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) return -ENOMEM; } - gpadc->irq = platform_get_irq_byname(pdev, "SW_CONV_END"); - if (gpadc->irq < 0) { - dev_err(&pdev->dev, "failed to get platform irq-%d\n", - gpadc->irq); - ret = gpadc->irq; - goto fail; - } + gpadc->irq_sw = platform_get_irq_byname(pdev, "SW_CONV_END"); + if (gpadc->irq_sw < 0) + dev_err(gpadc->dev, "failed to get platform sw_conv_end irq\n"); + + gpadc->irq_hw = platform_get_irq_byname(pdev, "HW_CONV_END"); + if (gpadc->irq_hw < 0) + dev_err(gpadc->dev, "failed to get platform hw_conv_end irq\n"); gpadc->dev = &pdev->dev; gpadc->parent = dev_get_drvdata(pdev->dev.parent); @@ -634,15 +943,31 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) /* Initialize completion used to notify completion of conversion */ init_completion(&gpadc->ab8500_gpadc_complete); - /* Register interrupt - SwAdcComplete */ - ret = request_threaded_irq(gpadc->irq, NULL, - ab8500_bm_gpswadcconvend_handler, - IRQF_ONESHOT | IRQF_NO_SUSPEND | IRQF_SHARED, - "ab8500-gpadc", gpadc); - if (ret < 0) { - dev_err(gpadc->dev, "Failed to register interrupt, irq: %d\n", - gpadc->irq); - goto fail; + /* Register interrupts */ + if (gpadc->irq_sw >= 0) { + ret = request_threaded_irq(gpadc->irq_sw, NULL, + ab8500_bm_gpadcconvend_handler, + IRQF_NO_SUSPEND | IRQF_SHARED, "ab8500-gpadc-sw", + gpadc); + if (ret < 0) { + dev_err(gpadc->dev, + "Failed to register interrupt irq: %d\n", + gpadc->irq_sw); + goto fail; + } + } + + if (gpadc->irq_hw >= 0) { + ret = request_threaded_irq(gpadc->irq_hw, NULL, + ab8500_bm_gpadcconvend_handler, + IRQF_NO_SUSPEND | IRQF_SHARED, "ab8500-gpadc-hw", + gpadc); + if (ret < 0) { + dev_err(gpadc->dev, + "Failed to register interrupt irq: %d\n", + gpadc->irq_hw); + goto fail_irq; + } } /* VTVout LDO used to power up ab8500-GPADC */ @@ -669,11 +994,13 @@ static int ab8500_gpadc_probe(struct platform_device *pdev) ab8500_gpadc_read_calibration_data(gpadc); list_add_tail(&gpadc->node, &ab8500_gpadc_list); dev_dbg(gpadc->dev, "probe success\n"); + return 0; fail_enable: fail_irq: - free_irq(gpadc->irq, gpadc); + free_irq(gpadc->irq_sw, gpadc); + free_irq(gpadc->irq_hw, gpadc); fail: kfree(gpadc); gpadc = NULL; @@ -687,7 +1014,10 @@ static int ab8500_gpadc_remove(struct platform_device *pdev) /* remove this gpadc entry from the list */ list_del(&gpadc->node); /* remove interrupt - completion of Sw ADC conversion */ - free_irq(gpadc->irq, gpadc); + if (gpadc->irq_sw >= 0) + free_irq(gpadc->irq_sw, gpadc); + if (gpadc->irq_hw >= 0) + free_irq(gpadc->irq_hw, gpadc); pm_runtime_get_sync(gpadc->dev); pm_runtime_disable(gpadc->dev); @@ -707,6 +1037,9 @@ static const struct dev_pm_ops ab8500_gpadc_pm_ops = { SET_RUNTIME_PM_OPS(ab8500_gpadc_runtime_suspend, ab8500_gpadc_runtime_resume, ab8500_gpadc_runtime_idle) + SET_SYSTEM_SLEEP_PM_OPS(ab8500_gpadc_suspend, + ab8500_gpadc_resume) + }; static struct platform_driver ab8500_gpadc_driver = { @@ -729,10 +1062,30 @@ static void __exit ab8500_gpadc_exit(void) platform_driver_unregister(&ab8500_gpadc_driver); } +/** + * ab8540_gpadc_get_otp() - returns OTP values + * + */ +void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, + u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, + u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h) +{ + *vmain_l = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo; + *vmain_h = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi; + *btemp_l = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo; + *btemp_h = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi; + *vbat_l = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo; + *vbat_h = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi; + *ibat_l = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo; + *ibat_h = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi; + return ; +} + subsys_initcall_sync(ab8500_gpadc_init); module_exit(ab8500_gpadc_exit); MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson"); +MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson," + "M'boumba Cedric Madianga"); MODULE_ALIAS("platform:ab8500_gpadc"); MODULE_DESCRIPTION("AB8500 GPADC driver"); diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c index 108fd86..272479c 100644 --- a/drivers/mfd/ab8500-sysctrl.c +++ b/drivers/mfd/ab8500-sysctrl.c @@ -15,19 +15,30 @@ #include #include +/* RtcCtrl bits */ +#define AB8500_ALARM_MIN_LOW 0x08 +#define AB8500_ALARM_MIN_MID 0x09 +#define RTC_CTRL 0x0B +#define RTC_ALARM_ENABLE 0x4 + static struct device *sysctrl_dev; void ab8500_power_off(void) { sigset_t old; sigset_t all; - static char *pss[] = {"ab8500_ac", "ab8500_usb"}; + static char *pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"}; int i; bool charger_present = false; union power_supply_propval val; struct power_supply *psy; int ret; + if (sysctrl_dev == NULL) { + pr_err("%s: sysctrl not initialized\n", __func__); + return; + } + /* * If we have a charger connected and we're powering off, * reboot into charge-only mode. @@ -74,6 +85,63 @@ shutdown: } } +/* + * Use the AB WD to reset the platform. It will perform a hard + * reset instead of a soft reset. Write the reset reason to + * the AB before reset, which can be read upon restart. + */ +void ab8500_restart(char mode, const char *cmd) +{ + struct ab8500_platform_data *plat; + struct ab8500_sysctrl_platform_data *pdata; + u16 reason = 0; + u8 val; + + if (sysctrl_dev == NULL) { + pr_err("%s: sysctrl not initialized\n", __func__); + return; + } + + plat = dev_get_platdata(sysctrl_dev->parent); + pdata = plat->sysctrl; + if (pdata->reboot_reason_code) + reason = pdata->reboot_reason_code(cmd); + else + pr_warn("[%s] No reboot reason set. Default reason %d\n", + __func__, reason); + + /* + * Disable RTC alarm, just a precaution so that no alarm + * is running when WD reset is executed. + */ + abx500_get_register_interruptible(sysctrl_dev, AB8500_RTC, + RTC_CTRL , &val); + abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC, + RTC_CTRL , (val & ~RTC_ALARM_ENABLE)); + + /* + * Android is not using the RTC alarm registers during reboot + * so we borrow them for writing the reason of reset + */ + + /* reason[8 LSB] */ + val = reason & 0xFF; + abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC, + AB8500_ALARM_MIN_LOW , val); + + /* reason[8 MSB] */ + val = (reason>>8) & 0xFF; + abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC, + AB8500_ALARM_MIN_MID , val); + + /* Setting WD timeout to 0 */ + ab8500_sysctrl_write(AB8500_MAINWDOGTIMER, 0xFF, 0x0); + + /* Setting the parameters to AB8500 WD*/ + ab8500_sysctrl_write(AB8500_MAINWDOGCTRL, 0xFF, (AB8500_ENABLE_WD | + AB8500_WD_RESTART_ON_EXPIRE | AB8500_KICK_WD)); +} + static inline bool valid_bank(u8 bank) { return ((bank == AB8500_SYS_CTRL1_BLOCK) || @@ -85,7 +153,7 @@ int ab8500_sysctrl_read(u16 reg, u8 *value) u8 bank; if (sysctrl_dev == NULL) - return -EAGAIN; + return -EINVAL; bank = (reg >> 8); if (!valid_bank(bank)) @@ -101,7 +169,7 @@ int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value) u8 bank; if (sysctrl_dev == NULL) - return -EAGAIN; + return -EINVAL; bank = (reg >> 8); if (!valid_bank(bank)) @@ -114,28 +182,36 @@ EXPORT_SYMBOL(ab8500_sysctrl_write); static int ab8500_sysctrl_probe(struct platform_device *pdev) { + struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent); struct ab8500_platform_data *plat; struct ab8500_sysctrl_platform_data *pdata; - sysctrl_dev = &pdev->dev; plat = dev_get_platdata(pdev->dev.parent); + + if (!(plat && plat->sysctrl)) + return -EINVAL; + if (plat->pm_power_off) pm_power_off = ab8500_power_off; pdata = plat->sysctrl; if (pdata) { - int ret, i, j; + int last, ret, i, j; + + if (is_ab8505(ab8500)) + last = AB8500_SYSCLKREQ4RFCLKBUF; + else + last = AB8500_SYSCLKREQ8RFCLKBUF; - for (i = AB8500_SYSCLKREQ1RFCLKBUF; - i <= AB8500_SYSCLKREQ8RFCLKBUF; i++) { + for (i = AB8500_SYSCLKREQ1RFCLKBUF; i <= last; i++) { j = i - AB8500_SYSCLKREQ1RFCLKBUF; ret = ab8500_sysctrl_write(i, 0xff, - pdata->initial_req_buf_config[j]); + pdata->initial_req_buf_config[j]); dev_dbg(&pdev->dev, - "Setting SysClkReq%dRfClkBuf 0x%X\n", - j + 1, - pdata->initial_req_buf_config[j]); + "Setting SysClkReq%dRfClkBuf 0x%X\n", + j + 1, + pdata->initial_req_buf_config[j]); if (ret < 0) { dev_err(&pdev->dev, "unable to set sysClkReq%dRfClkBuf: " diff --git a/drivers/power/88pm860x_charger.c b/drivers/power/88pm860x_charger.c index 4b37a5a..36fb4b5 100644 --- a/drivers/power/88pm860x_charger.c +++ b/drivers/power/88pm860x_charger.c @@ -714,7 +714,6 @@ out_irq: while (--i >= 0) free_irq(info->irq[i], info); out: - kfree(info); return ret; } @@ -728,7 +727,6 @@ static int pm860x_charger_remove(struct platform_device *pdev) free_irq(info->irq[0], info); for (i = 0; i < info->irq_nums; i++) free_irq(info->irq[i], info); - kfree(info); return 0; } diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index ffe02fb..0d0b5d7 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -340,6 +340,13 @@ config CHARGER_SMB347 Say Y to include support for Summit Microelectronics SMB347 Battery Charger. +config CHARGER_TPS65090 + tristate "TPS65090 battery charger driver" + depends on MFD_TPS65090 + help + Say Y here to enable support for battery charging with TPS65090 + PMIC chips. + config AB8500_BM bool "AB8500 Battery Management Driver" depends on AB8500_CORE && AB8500_GPADC @@ -353,13 +360,6 @@ config BATTERY_GOLDFISH Say Y to enable support for the battery and AC power in the Goldfish emulator. -config CHARGER_PM2301 - bool "PM2301 Battery Charger Driver" - depends on AB8500_BM - help - Say Y to include support for PM2301 charger driver. - Depends on AB8500 battery management core. - source "drivers/power/reset/Kconfig" endif # POWER_SUPPLY diff --git a/drivers/power/Makefile b/drivers/power/Makefile index 3f66436..653bf6c 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -39,7 +39,7 @@ obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o obj-$(CONFIG_BATTERY_JZ4740) += jz4740-battery.o obj-$(CONFIG_BATTERY_INTEL_MID) += intel_mid_battery.o obj-$(CONFIG_BATTERY_RX51) += rx51_battery.o -obj-$(CONFIG_AB8500_BM) += ab8500_bmdata.o ab8500_charger.o ab8500_fg.o ab8500_btemp.o abx500_chargalg.o +obj-$(CONFIG_AB8500_BM) += ab8500_bmdata.o ab8500_charger.o ab8500_fg.o ab8500_btemp.o abx500_chargalg.o pm2301_charger.o obj-$(CONFIG_CHARGER_ISP1704) += isp1704_charger.o obj-$(CONFIG_CHARGER_MAX8903) += max8903_charger.o obj-$(CONFIG_CHARGER_TWL4030) += twl4030_charger.o @@ -47,10 +47,10 @@ obj-$(CONFIG_CHARGER_LP8727) += lp8727_charger.o obj-$(CONFIG_CHARGER_LP8788) += lp8788-charger.o obj-$(CONFIG_CHARGER_GPIO) += gpio-charger.o obj-$(CONFIG_CHARGER_MANAGER) += charger-manager.o -obj-$(CONFIG_CHARGER_PM2301) += pm2301_charger.o obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o obj-$(CONFIG_POWER_AVS) += avs/ obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o +obj-$(CONFIG_CHARGER_TPS65090) += tps65090-charger.o obj-$(CONFIG_POWER_RESET) += reset/ diff --git a/drivers/power/ab8500_bmdata.c b/drivers/power/ab8500_bmdata.c index 7a96c06..d298645 100644 --- a/drivers/power/ab8500_bmdata.c +++ b/drivers/power/ab8500_bmdata.c @@ -11,7 +11,7 @@ * Note that the res_to_temp table must be strictly sorted by falling resistance * values to work. */ -static struct abx500_res_to_temp temp_tbl_A_thermistor[] = { +const struct abx500_res_to_temp ab8500_temp_tbl_a_thermistor[] = { {-5, 53407}, { 0, 48594}, { 5, 43804}, @@ -28,8 +28,12 @@ static struct abx500_res_to_temp temp_tbl_A_thermistor[] = { {60, 13437}, {65, 12500}, }; +EXPORT_SYMBOL(ab8500_temp_tbl_a_thermistor); -static struct abx500_res_to_temp temp_tbl_B_thermistor[] = { +const int ab8500_temp_tbl_a_size = ARRAY_SIZE(ab8500_temp_tbl_a_thermistor); +EXPORT_SYMBOL(ab8500_temp_tbl_a_size); + +const struct abx500_res_to_temp ab8500_temp_tbl_b_thermistor[] = { {-5, 200000}, { 0, 159024}, { 5, 151921}, @@ -46,8 +50,12 @@ static struct abx500_res_to_temp temp_tbl_B_thermistor[] = { {60, 85461}, {65, 82869}, }; +EXPORT_SYMBOL(ab8500_temp_tbl_b_thermistor); + +const int ab8500_temp_tbl_b_size = ARRAY_SIZE(ab8500_temp_tbl_b_thermistor); +EXPORT_SYMBOL(ab8500_temp_tbl_b_size); -static struct abx500_v_to_cap cap_tbl_A_thermistor[] = { +static const struct abx500_v_to_cap cap_tbl_a_thermistor[] = { {4171, 100}, {4114, 95}, {4009, 83}, @@ -70,7 +78,7 @@ static struct abx500_v_to_cap cap_tbl_A_thermistor[] = { {3247, 0}, }; -static struct abx500_v_to_cap cap_tbl_B_thermistor[] = { +static const struct abx500_v_to_cap cap_tbl_b_thermistor[] = { {4161, 100}, {4124, 98}, {4044, 90}, @@ -93,7 +101,7 @@ static struct abx500_v_to_cap cap_tbl_B_thermistor[] = { {3250, 0}, }; -static struct abx500_v_to_cap cap_tbl[] = { +static const struct abx500_v_to_cap cap_tbl[] = { {4186, 100}, {4163, 99}, {4114, 95}, @@ -124,7 +132,7 @@ static struct abx500_v_to_cap cap_tbl[] = { * Note that the res_to_temp table must be strictly sorted by falling * resistance values to work. */ -static struct abx500_res_to_temp temp_tbl[] = { +static const struct abx500_res_to_temp temp_tbl[] = { {-5, 214834}, { 0, 162943}, { 5, 124820}, @@ -146,7 +154,7 @@ static struct abx500_res_to_temp temp_tbl[] = { * Note that the batres_vs_temp table must be strictly sorted by falling * temperature values to work. */ -static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = { +static const struct batres_vs_temp temp_to_batres_tbl_thermistor[] = { { 40, 120}, { 30, 135}, { 20, 165}, @@ -160,7 +168,7 @@ static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = { * Note that the batres_vs_temp table must be strictly sorted by falling * temperature values to work. */ -static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = { +static const struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = { { 60, 300}, { 30, 300}, { 20, 300}, @@ -171,7 +179,7 @@ static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = { }; /* battery resistance table for LI ION 9100 battery */ -static struct batres_vs_temp temp_to_batres_tbl_9100[] = { +static const struct batres_vs_temp temp_to_batres_tbl_9100[] = { { 60, 180}, { 30, 180}, { 20, 180}, @@ -230,10 +238,10 @@ static struct abx500_battery_type bat_type_thermistor[] = { .maint_b_chg_timer_h = 200, .low_high_cur_lvl = 300, .low_high_vol_lvl = 4000, - .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_A_thermistor), - .r_to_t_tbl = temp_tbl_A_thermistor, - .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_A_thermistor), - .v_to_cap_tbl = cap_tbl_A_thermistor, + .n_temp_tbl_elements = ARRAY_SIZE(ab8500_temp_tbl_a_thermistor), + .r_to_t_tbl = ab8500_temp_tbl_a_thermistor, + .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_a_thermistor), + .v_to_cap_tbl = cap_tbl_a_thermistor, .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor), .batres_tbl = temp_to_batres_tbl_thermistor, @@ -258,10 +266,10 @@ static struct abx500_battery_type bat_type_thermistor[] = { .maint_b_chg_timer_h = 200, .low_high_cur_lvl = 300, .low_high_vol_lvl = 4000, - .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_B_thermistor), - .r_to_t_tbl = temp_tbl_B_thermistor, - .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_B_thermistor), - .v_to_cap_tbl = cap_tbl_B_thermistor, + .n_temp_tbl_elements = ARRAY_SIZE(ab8500_temp_tbl_b_thermistor), + .r_to_t_tbl = ab8500_temp_tbl_b_thermistor, + .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_b_thermistor), + .v_to_cap_tbl = cap_tbl_b_thermistor, .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor), .batres_tbl = temp_to_batres_tbl_thermistor, }, @@ -407,15 +415,27 @@ static const struct abx500_fg_parameters fg = { .battok_raising_th_sel1 = 2860, .maint_thres = 95, .user_cap_limit = 15, + .pcut_enable = 1, + .pcut_max_time = 127, + .pcut_flag_time = 112, + .pcut_max_restart = 15, + .pcut_debounce_time = 2, }; -static const struct abx500_maxim_parameters maxi_params = { +static const struct abx500_maxim_parameters ab8500_maxi_params = { .ena_maxi = true, .chg_curr = 910, .wait_cycles = 10, .charger_curr_step = 100, }; +static const struct abx500_maxim_parameters abx540_maxi_params = { + .ena_maxi = true, + .chg_curr = 3000, + .wait_cycles = 10, + .charger_curr_step = 200, +}; + static const struct abx500_bm_charger_parameters chg = { .usb_volt_max = 5500, .usb_curr_max = 1500, @@ -423,6 +443,46 @@ static const struct abx500_bm_charger_parameters chg = { .ac_curr_max = 1500, }; +/* + * This array maps the raw hex value to charger output current used by the + * AB8500 values + */ +static int ab8500_charge_output_curr_map[] = { + 100, 200, 300, 400, 500, 600, 700, 800, + 900, 1000, 1100, 1200, 1300, 1400, 1500, 1500, +}; + +static int ab8540_charge_output_curr_map[] = { + 0, 0, 0, 75, 100, 125, 150, 175, + 200, 225, 250, 275, 300, 325, 350, 375, + 400, 425, 450, 475, 500, 525, 550, 575, + 600, 625, 650, 675, 700, 725, 750, 775, + 800, 825, 850, 875, 900, 925, 950, 975, + 1000, 1025, 1050, 1075, 1100, 1125, 1150, 1175, + 1200, 1225, 1250, 1275, 1300, 1325, 1350, 1375, + 1400, 1425, 1450, 1500, 1600, 1700, 1900, 2000, +}; + +/* + * This array maps the raw hex value to charger input current used by the + * AB8500 values + */ +static int ab8500_charge_input_curr_map[] = { + 50, 98, 193, 290, 380, 450, 500, 600, + 700, 800, 900, 1000, 1100, 1300, 1400, 1500, +}; + +static int ab8540_charge_input_curr_map[] = { + 25, 50, 75, 100, 125, 150, 175, 200, + 225, 250, 275, 300, 325, 350, 375, 400, + 425, 450, 475, 500, 525, 550, 575, 600, + 625, 650, 675, 700, 725, 750, 775, 800, + 825, 850, 875, 900, 925, 950, 975, 1000, + 1025, 1050, 1075, 1100, 1125, 1150, 1175, 1200, + 1225, 1250, 1275, 1300, 1325, 1350, 1375, 1400, + 1425, 1450, 1475, 1500, 1500, 1500, 1500, 1500, +}; + struct abx500_bm_data ab8500_bm_data = { .temp_under = 3, .temp_low = 8, @@ -442,22 +502,60 @@ struct abx500_bm_data ab8500_bm_data = { .fg_res = 100, .cap_levels = &cap_levels, .bat_type = bat_type_thermistor, - .n_btypes = 3, + .n_btypes = ARRAY_SIZE(bat_type_thermistor), .batt_id = 0, .interval_charging = 5, .interval_not_charging = 120, .temp_hysteresis = 3, .gnd_lift_resistance = 34, - .maxi = &maxi_params, + .chg_output_curr = ab8500_charge_output_curr_map, + .n_chg_out_curr = ARRAY_SIZE(ab8500_charge_output_curr_map), + .maxi = &ab8500_maxi_params, .chg_params = &chg, .fg_params = &fg, + .chg_input_curr = ab8500_charge_input_curr_map, + .n_chg_in_curr = ARRAY_SIZE(ab8500_charge_input_curr_map), +}; + +struct abx500_bm_data ab8540_bm_data = { + .temp_under = 3, + .temp_low = 8, + .temp_high = 43, + .temp_over = 48, + .main_safety_tmr_h = 4, + .temp_interval_chg = 20, + .temp_interval_nochg = 120, + .usb_safety_tmr_h = 4, + .bkup_bat_v = BUP_VCH_SEL_2P6V, + .bkup_bat_i = BUP_ICH_SEL_150UA, + .no_maintenance = false, + .capacity_scaling = false, + .adc_therm = ABx500_ADC_THERM_BATCTRL, + .chg_unknown_bat = false, + .enable_overshoot = false, + .fg_res = 100, + .cap_levels = &cap_levels, + .bat_type = bat_type_thermistor, + .n_btypes = ARRAY_SIZE(bat_type_thermistor), + .batt_id = 0, + .interval_charging = 5, + .interval_not_charging = 120, + .temp_hysteresis = 3, + .gnd_lift_resistance = 0, + .maxi = &abx540_maxi_params, + .chg_params = &chg, + .fg_params = &fg, + .chg_output_curr = ab8540_charge_output_curr_map, + .n_chg_out_curr = ARRAY_SIZE(ab8540_charge_output_curr_map), + .chg_input_curr = ab8540_charge_input_curr_map, + .n_chg_in_curr = ARRAY_SIZE(ab8540_charge_input_curr_map), }; int ab8500_bm_of_probe(struct device *dev, struct device_node *np, struct abx500_bm_data *bm) { - struct batres_vs_temp *tmp_batres_tbl; + const struct batres_vs_temp *tmp_batres_tbl; struct device_node *battery_node; const char *btech; int i; diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c index 0768906..d412d34 100644 --- a/drivers/power/ab8500_btemp.c +++ b/drivers/power/ab8500_btemp.c @@ -42,6 +42,9 @@ #define BTEMP_BATCTRL_CURR_SRC_16UA 16 #define BTEMP_BATCTRL_CURR_SRC_18UA 18 +#define BTEMP_BATCTRL_CURR_SRC_60UA 60 +#define BTEMP_BATCTRL_CURR_SRC_120UA 120 + #define to_ab8500_btemp_device_info(x) container_of((x), \ struct ab8500_btemp, btemp_psy); @@ -76,8 +79,8 @@ struct ab8500_btemp_ranges { * @dev: Pointer to the structure device * @node: List of AB8500 BTEMPs, hence prepared for reentrance * @curr_source: What current source we use, in uA - * @bat_temp: Battery temperature in degree Celcius - * @prev_bat_temp Last dispatched battery temperature + * @bat_temp: Dispatched battery temperature in degree Celcius + * @prev_bat_temp Last measured battery temperature in degree Celcius * @parent: Pointer to the struct ab8500 * @gpadc: Pointer to the struct gpadc * @fg: Pointer to the struct fg @@ -128,6 +131,7 @@ struct ab8500_btemp *ab8500_btemp_get(void) return btemp; } +EXPORT_SYMBOL(ab8500_btemp_get); /** * ab8500_btemp_batctrl_volt_to_res() - convert batctrl voltage to resistance @@ -155,7 +159,7 @@ static int ab8500_btemp_batctrl_volt_to_res(struct ab8500_btemp *di, if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL) { /* * If the battery has internal NTC, we use the current - * source to calculate the resistance, 7uA or 20uA + * source to calculate the resistance. */ rbs = (v_batctrl * 1000 - di->bm->gnd_lift_resistance * inst_curr) @@ -216,7 +220,12 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di, /* Only do this for batteries with internal NTC */ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && enable) { - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + if (is_ab8540(di->parent)) { + if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_60UA) + curr = BAT_CTRL_60U_ENA; + else + curr = BAT_CTRL_120U_ENA; + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_16UA) curr = BAT_CTRL_16U_ENA; else @@ -257,7 +266,14 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di, } else if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && !enable) { dev_dbg(di->dev, "Disable BATCTRL curr source\n"); - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + if (is_ab8540(di->parent)) { + /* Write 0 to the curr bits */ + ret = abx500_mask_and_set_register_interruptible( + di->dev, + AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE, + BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA, + ~(BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA)); + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { /* Write 0 to the curr bits */ ret = abx500_mask_and_set_register_interruptible( di->dev, @@ -314,7 +330,13 @@ static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di, * if we got an error above */ disable_curr_source: - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + if (is_ab8540(di->parent)) { + /* Write 0 to the curr bits */ + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE, + BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA, + ~(BAT_CTRL_60U_ENA | BAT_CTRL_120U_ENA)); + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { /* Write 0 to the curr bits */ ret = abx500_mask_and_set_register_interruptible(di->dev, AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE, @@ -541,7 +563,9 @@ static int ab8500_btemp_id(struct ab8500_btemp *di) { int res; u8 i; - if (is_ab9540(di->parent) || is_ab8505(di->parent)) + if (is_ab8540(di->parent)) + di->curr_source = BTEMP_BATCTRL_CURR_SRC_60UA; + else if (is_ab9540(di->parent) || is_ab8505(di->parent)) di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA; else di->curr_source = BTEMP_BATCTRL_CURR_SRC_7UA; @@ -579,12 +603,17 @@ static int ab8500_btemp_id(struct ab8500_btemp *di) /* * We only have to change current source if the - * detected type is Type 1, else we use the 7uA source + * detected type is Type 1. */ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && - di->bm->batt_id == 1) { - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { - dev_dbg(di->dev, "Set BATCTRL current source to 16uA\n"); + di->bm->batt_id == 1) { + if (is_ab8540(di->parent)) { + dev_dbg(di->dev, + "Set BATCTRL current source to 60uA\n"); + di->curr_source = BTEMP_BATCTRL_CURR_SRC_60UA; + } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + dev_dbg(di->dev, + "Set BATCTRL current source to 16uA\n"); di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA; } else { dev_dbg(di->dev, "Set BATCTRL current source to 20uA\n"); @@ -604,22 +633,37 @@ static int ab8500_btemp_id(struct ab8500_btemp *di) static void ab8500_btemp_periodic_work(struct work_struct *work) { int interval; + int bat_temp; struct ab8500_btemp *di = container_of(work, struct ab8500_btemp, btemp_periodic_work.work); if (!di->initialized) { - di->initialized = true; /* Identify the battery */ if (ab8500_btemp_id(di) < 0) dev_warn(di->dev, "failed to identify the battery\n"); } - di->bat_temp = ab8500_btemp_measure_temp(di); - - if (di->bat_temp != di->prev_bat_temp) { - di->prev_bat_temp = di->bat_temp; + bat_temp = ab8500_btemp_measure_temp(di); + /* + * Filter battery temperature. + * Allow direct updates on temperature only if two samples result in + * same temperature. Else only allow 1 degree change from previous + * reported value in the direction of the new measurement. + */ + if ((bat_temp == di->prev_bat_temp) || !di->initialized) { + if ((di->bat_temp != di->prev_bat_temp) || !di->initialized) { + di->initialized = true; + di->bat_temp = bat_temp; + power_supply_changed(&di->btemp_psy); + } + } else if (bat_temp < di->prev_bat_temp) { + di->bat_temp--; + power_supply_changed(&di->btemp_psy); + } else if (bat_temp > di->prev_bat_temp) { + di->bat_temp++; power_supply_changed(&di->btemp_psy); } + di->prev_bat_temp = bat_temp; if (di->events.ac_conn || di->events.usb_conn) interval = di->bm->temp_interval_chg; @@ -772,7 +816,7 @@ static void ab8500_btemp_periodic(struct ab8500_btemp *di, * * Returns battery temperature */ -static int ab8500_btemp_get_temp(struct ab8500_btemp *di) +int ab8500_btemp_get_temp(struct ab8500_btemp *di) { int temp = 0; @@ -808,6 +852,7 @@ static int ab8500_btemp_get_temp(struct ab8500_btemp *di) } return temp; } +EXPORT_SYMBOL(ab8500_btemp_get_temp); /** * ab8500_btemp_get_batctrl_temp() - get the temperature @@ -819,6 +864,7 @@ int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp) { return btemp->bat_temp * 1000; } +EXPORT_SYMBOL(ab8500_btemp_get_batctrl_temp); /** * ab8500_btemp_get_property() - get the btemp properties diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index 24b30b7..a558318 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -52,10 +53,15 @@ #define VBUS_DET_DBNC100 0x02 #define VBUS_DET_DBNC1 0x01 #define OTP_ENABLE_WD 0x01 +#define DROP_COUNT_RESET 0x01 +#define USB_CH_DET 0x01 #define MAIN_CH_INPUT_CURR_SHIFT 4 #define VBUS_IN_CURR_LIM_SHIFT 4 +#define AB8540_VBUS_IN_CURR_LIM_SHIFT 2 #define AUTO_VBUS_IN_CURR_LIM_SHIFT 4 +#define AB8540_AUTO_VBUS_IN_CURR_MASK 0x3F +#define VBUS_IN_CURR_LIM_RETRY_SET_TIME 30 /* seconds */ #define LED_INDICATOR_PWM_ENA 0x01 #define LED_INDICATOR_PWM_DIS 0x00 @@ -77,7 +83,9 @@ /* UsbLineStatus register bit masks */ #define AB8500_USB_LINK_STATUS 0x78 +#define AB8505_USB_LINK_STATUS 0xF8 #define AB8500_STD_HOST_SUSP 0x18 +#define USB_LINK_STATUS_SHIFT 3 /* Watchdog timeout constant */ #define WD_TIMER 0x30 /* 4min */ @@ -96,6 +104,10 @@ #define AB8500_SW_CONTROL_FALLBACK 0x03 /* Wait for enumeration before charing in us */ #define WAIT_ACA_RID_ENUMERATION (5 * 1000) +/*External charger control*/ +#define AB8500_SYS_CHARGER_CONTROL_REG 0x52 +#define EXTERNAL_CHARGER_DISABLE_REG_VAL 0x03 +#define EXTERNAL_CHARGER_ENABLE_REG_VAL 0x07 /* UsbLineStatus register - usb types */ enum ab8500_charger_link_status { @@ -196,10 +208,15 @@ struct ab8500_charger_usb_state { spinlock_t usb_lock; }; +struct ab8500_charger_max_usb_in_curr { + int usb_type_max; + int set_max; + int calculated_max; +}; + /** * struct ab8500_charger - ab8500 Charger device information * @dev: Pointer to the structure device - * @max_usb_in_curr: Max USB charger input current * @vbus_detected: VBUS detected * @vbus_detected_start: * VBUS detected during startup @@ -214,7 +231,6 @@ struct ab8500_charger_usb_state { * @autopower Indicate if we should have automatic pwron after pwrloss * @autopower_cfg platform specific power config support for "pwron after pwrloss" * @invalid_charger_detect_state State when forcing AB to use invalid charger - * @is_usb_host: Indicate if last detected USB type is host * @is_aca_rid: Incicate if accessory is ACA type * @current_stepping_sessions: * Counter for current stepping sessions @@ -223,6 +239,7 @@ struct ab8500_charger_usb_state { * @bm: Platform specific battery management information * @flags: Structure for information about events triggered * @usb_state: Structure for usb stack information + * @max_usb_in_curr: Max USB charger input current * @ac_chg: AC charger power supply * @usb_chg: USB charger power supply * @ac: Structure that holds the AC charger properties @@ -254,7 +271,6 @@ struct ab8500_charger_usb_state { */ struct ab8500_charger { struct device *dev; - int max_usb_in_curr; bool vbus_detected; bool vbus_detected_start; bool ac_conn; @@ -266,7 +282,6 @@ struct ab8500_charger { bool autopower; bool autopower_cfg; int invalid_charger_detect_state; - bool is_usb_host; int is_aca_rid; atomic_t current_stepping_sessions; struct ab8500 *parent; @@ -274,6 +289,7 @@ struct ab8500_charger { struct abx500_bm_data *bm; struct ab8500_charger_event_flags flags; struct ab8500_charger_usb_state usb_state; + struct ab8500_charger_max_usb_in_curr max_usb_in_curr; struct ux500_charger ac_chg; struct ux500_charger usb_chg; struct ab8500_charger_info ac; @@ -415,13 +431,18 @@ static void ab8500_charger_set_usb_connected(struct ab8500_charger *di, if (connected != di->usb.charger_connected) { dev_dbg(di->dev, "USB connected:%i\n", connected); di->usb.charger_connected = connected; + + if (!connected) + di->flags.vbus_drop_end = false; + sysfs_notify(&di->usb_chg.psy.dev->kobj, NULL, "present"); if (connected) { mutex_lock(&di->charger_attached_mutex); mutex_unlock(&di->charger_attached_mutex); - queue_delayed_work(di->charger_wq, + if (is_ab8500(di->parent)) + queue_delayed_work(di->charger_wq, &di->usb_charger_attached_work, HZ); } else { @@ -668,23 +689,19 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, case USB_STAT_STD_HOST_C_S: dev_dbg(di->dev, "USB Type - Standard host is " "detected through USB driver\n"); - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; - di->is_usb_host = true; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; di->is_aca_rid = 0; break; case USB_STAT_HOST_CHG_HS_CHIRP: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; - di->is_usb_host = true; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; di->is_aca_rid = 0; break; case USB_STAT_HOST_CHG_HS: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; - di->is_usb_host = true; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; di->is_aca_rid = 0; break; case USB_STAT_ACA_RID_C_HS: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P9; - di->is_usb_host = false; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P9; di->is_aca_rid = 0; break; case USB_STAT_ACA_RID_A: @@ -693,8 +710,7 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, * can consume (900mA). Closest level is 500mA */ dev_dbg(di->dev, "USB_STAT_ACA_RID_A detected\n"); - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; - di->is_usb_host = false; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; di->is_aca_rid = 1; break; case USB_STAT_ACA_RID_B: @@ -702,38 +718,35 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, * Dedicated charger level minus 120mA (20mA for ACA and * 100mA for potential accessory). Closest level is 1300mA */ - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_1P3; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_1P3; dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d", link_status, - di->max_usb_in_curr); - di->is_usb_host = false; + di->max_usb_in_curr.usb_type_max); di->is_aca_rid = 1; break; case USB_STAT_HOST_CHG_NM: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; - di->is_usb_host = true; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; di->is_aca_rid = 0; break; case USB_STAT_DEDICATED_CHG: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_1P5; - di->is_usb_host = false; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_1P5; di->is_aca_rid = 0; break; case USB_STAT_ACA_RID_C_HS_CHIRP: case USB_STAT_ACA_RID_C_NM: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_1P5; - di->is_usb_host = false; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_1P5; di->is_aca_rid = 1; break; case USB_STAT_NOT_CONFIGURED: if (di->vbus_detected) { di->usb_device_is_unrecognised = true; dev_dbg(di->dev, "USB Type - Legacy charger.\n"); - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_1P5; + di->max_usb_in_curr.usb_type_max = + USB_CH_IP_CUR_LVL_1P5; break; } case USB_STAT_HM_IDGND: dev_err(di->dev, "USB Type - Charging not allowed\n"); - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P05; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05; ret = -ENXIO; break; case USB_STAT_RESERVED: @@ -743,12 +756,13 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, "VBUS has collapsed\n"); ret = -ENXIO; break; - } - if (is_ab9540(di->parent) || is_ab8505(di->parent)) { + } else { dev_dbg(di->dev, "USB Type - Charging not allowed\n"); - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P05; + di->max_usb_in_curr.usb_type_max = + USB_CH_IP_CUR_LVL_0P05; dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d", - link_status, di->max_usb_in_curr); + link_status, + di->max_usb_in_curr.usb_type_max); ret = -ENXIO; break; } @@ -757,23 +771,24 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, case USB_STAT_CARKIT_2: case USB_STAT_ACA_DOCK_CHARGER: case USB_STAT_CHARGER_LINE_1: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d", link_status, - di->max_usb_in_curr); + di->max_usb_in_curr.usb_type_max); case USB_STAT_NOT_VALID_LINK: dev_err(di->dev, "USB Type invalid - try charging anyway\n"); - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; break; default: dev_err(di->dev, "USB Type - Unknown\n"); - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P05; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05; ret = -ENXIO; break; }; + di->max_usb_in_curr.set_max = di->max_usb_in_curr.usb_type_max; dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d", - link_status, di->max_usb_in_curr); + link_status, di->max_usb_in_curr.set_max); return ret; } @@ -796,21 +811,22 @@ static int ab8500_charger_read_usb_type(struct ab8500_charger *di) dev_err(di->dev, "%s ab8500 read failed\n", __func__); return ret; } - if (is_ab8500(di->parent)) { + if (is_ab8500(di->parent)) ret = abx500_get_register_interruptible(di->dev, AB8500_USB, - AB8500_USB_LINE_STAT_REG, &val); - } else { - if (is_ab9540(di->parent) || is_ab8505(di->parent)) - ret = abx500_get_register_interruptible(di->dev, - AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val); - } + AB8500_USB_LINE_STAT_REG, &val); + else + ret = abx500_get_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val); if (ret < 0) { dev_err(di->dev, "%s ab8500 read failed\n", __func__); return ret; } /* get the USB type */ - val = (val & AB8500_USB_LINK_STATUS) >> 3; + if (is_ab8500(di->parent)) + val = (val & AB8500_USB_LINK_STATUS) >> USB_LINK_STATUS_SHIFT; + else + val = (val & AB8505_USB_LINK_STATUS) >> USB_LINK_STATUS_SHIFT; ret = ab8500_charger_max_usb_curr(di, (enum ab8500_charger_link_status) val); @@ -865,7 +881,12 @@ static int ab8500_charger_detect_usb_type(struct ab8500_charger *di) */ /* get the USB type */ - val = (val & AB8500_USB_LINK_STATUS) >> 3; + if (is_ab8500(di->parent)) + val = (val & AB8500_USB_LINK_STATUS) >> + USB_LINK_STATUS_SHIFT; + else + val = (val & AB8505_USB_LINK_STATUS) >> + USB_LINK_STATUS_SHIFT; if (val) break; } @@ -960,51 +981,6 @@ static int ab8500_charger_voltage_map[] = { 4600 , }; -/* - * This array maps the raw hex value to charger current used by the AB8500 - * Values taken from the UM0836 - */ -static int ab8500_charger_current_map[] = { - 100 , - 200 , - 300 , - 400 , - 500 , - 600 , - 700 , - 800 , - 900 , - 1000 , - 1100 , - 1200 , - 1300 , - 1400 , - 1500 , -}; - -/* - * This array maps the raw hex value to VBUS input current used by the AB8500 - * Values taken from the UM0836 - */ -static int ab8500_charger_vbus_in_curr_map[] = { - USB_CH_IP_CUR_LVL_0P05, - USB_CH_IP_CUR_LVL_0P09, - USB_CH_IP_CUR_LVL_0P19, - USB_CH_IP_CUR_LVL_0P29, - USB_CH_IP_CUR_LVL_0P38, - USB_CH_IP_CUR_LVL_0P45, - USB_CH_IP_CUR_LVL_0P5, - USB_CH_IP_CUR_LVL_0P6, - USB_CH_IP_CUR_LVL_0P7, - USB_CH_IP_CUR_LVL_0P8, - USB_CH_IP_CUR_LVL_0P9, - USB_CH_IP_CUR_LVL_1P0, - USB_CH_IP_CUR_LVL_1P1, - USB_CH_IP_CUR_LVL_1P3, - USB_CH_IP_CUR_LVL_1P4, - USB_CH_IP_CUR_LVL_1P5, -}; - static int ab8500_voltage_to_regval(int voltage) { int i; @@ -1026,41 +1002,41 @@ static int ab8500_voltage_to_regval(int voltage) return -1; } -static int ab8500_current_to_regval(int curr) +static int ab8500_current_to_regval(struct ab8500_charger *di, int curr) { int i; - if (curr < ab8500_charger_current_map[0]) + if (curr < di->bm->chg_output_curr[0]) return 0; - for (i = 0; i < ARRAY_SIZE(ab8500_charger_current_map); i++) { - if (curr < ab8500_charger_current_map[i]) + for (i = 0; i < di->bm->n_chg_out_curr; i++) { + if (curr < di->bm->chg_output_curr[i]) return i - 1; } /* If not last element, return error */ - i = ARRAY_SIZE(ab8500_charger_current_map) - 1; - if (curr == ab8500_charger_current_map[i]) + i = di->bm->n_chg_out_curr - 1; + if (curr == di->bm->chg_output_curr[i]) return i; else return -1; } -static int ab8500_vbus_in_curr_to_regval(int curr) +static int ab8500_vbus_in_curr_to_regval(struct ab8500_charger *di, int curr) { int i; - if (curr < ab8500_charger_vbus_in_curr_map[0]) + if (curr < di->bm->chg_input_curr[0]) return 0; - for (i = 0; i < ARRAY_SIZE(ab8500_charger_vbus_in_curr_map); i++) { - if (curr < ab8500_charger_vbus_in_curr_map[i]) + for (i = 0; i < di->bm->n_chg_in_curr; i++) { + if (curr < di->bm->chg_input_curr[i]) return i - 1; } /* If not last element, return error */ - i = ARRAY_SIZE(ab8500_charger_vbus_in_curr_map) - 1; - if (curr == ab8500_charger_vbus_in_curr_map[i]) + i = di->bm->n_chg_in_curr - 1; + if (curr == di->bm->chg_input_curr[i]) return i; else return -1; @@ -1077,28 +1053,48 @@ static int ab8500_vbus_in_curr_to_regval(int curr) */ static int ab8500_charger_get_usb_cur(struct ab8500_charger *di) { + int ret = 0; switch (di->usb_state.usb_current) { case 100: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P09; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P09; break; case 200: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P19; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P19; break; case 300: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P29; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P29; break; case 400: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P38; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P38; break; case 500: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P5; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P5; break; default: - di->max_usb_in_curr = USB_CH_IP_CUR_LVL_0P05; - return -1; + di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05; + ret = -EPERM; break; }; - return 0; + di->max_usb_in_curr.set_max = di->max_usb_in_curr.usb_type_max; + return ret; +} + +/** + * ab8500_charger_check_continue_stepping() - Check to allow stepping + * @di: pointer to the ab8500_charger structure + * @reg: select what charger register to check + * + * Check if current stepping should be allowed to continue. + * Checks if charger source has not collapsed. If it has, further stepping + * is not allowed. + */ +static bool ab8500_charger_check_continue_stepping(struct ab8500_charger *di, + int reg) +{ + if (reg == AB8500_USBCH_IPT_CRNTLVL_REG) + return !di->flags.vbus_drop_end; + else + return true; } /** @@ -1118,7 +1114,7 @@ static int ab8500_charger_set_current(struct ab8500_charger *di, int ich, int reg) { int ret = 0; - int auto_curr_index, curr_index, prev_curr_index, shift_value, i; + int curr_index, prev_curr_index, shift_value, i; u8 reg_value; u32 step_udelay; bool no_stepping = false; @@ -1136,39 +1132,27 @@ static int ab8500_charger_set_current(struct ab8500_charger *di, case AB8500_MCH_IPT_CURLVL_REG: shift_value = MAIN_CH_INPUT_CURR_SHIFT; prev_curr_index = (reg_value >> shift_value); - curr_index = ab8500_current_to_regval(ich); + curr_index = ab8500_current_to_regval(di, ich); step_udelay = STEP_UDELAY; if (!di->ac.charger_connected) no_stepping = true; break; case AB8500_USBCH_IPT_CRNTLVL_REG: - shift_value = VBUS_IN_CURR_LIM_SHIFT; + if (is_ab8540(di->parent)) + shift_value = AB8540_VBUS_IN_CURR_LIM_SHIFT; + else + shift_value = VBUS_IN_CURR_LIM_SHIFT; prev_curr_index = (reg_value >> shift_value); - curr_index = ab8500_vbus_in_curr_to_regval(ich); + curr_index = ab8500_vbus_in_curr_to_regval(di, ich); step_udelay = STEP_UDELAY * 100; - ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, - AB8500_CH_USBCH_STAT2_REG, ®_value); - if (ret < 0) { - dev_err(di->dev, "%s read failed\n", __func__); - goto exit_set_current; - } - auto_curr_index = - reg_value >> AUTO_VBUS_IN_CURR_LIM_SHIFT; - - dev_dbg(di->dev, "%s Auto VBUS curr is %d mA\n", - __func__, - ab8500_charger_vbus_in_curr_map[auto_curr_index]); - - prev_curr_index = min(prev_curr_index, auto_curr_index); - if (!di->usb.charger_connected) no_stepping = true; break; case AB8500_CH_OPT_CRNTLVL_REG: shift_value = 0; prev_curr_index = (reg_value >> shift_value); - curr_index = ab8500_current_to_regval(ich); + curr_index = ab8500_current_to_regval(di, ich); step_udelay = STEP_UDELAY; if (curr_index && (curr_index - prev_curr_index) > 1) step_udelay *= 100; @@ -1219,7 +1203,8 @@ static int ab8500_charger_set_current(struct ab8500_charger *di, usleep_range(step_udelay, step_udelay * 2); } } else { - for (i = prev_curr_index + 1; i <= curr_index; i++) { + bool allow = true; + for (i = prev_curr_index + 1; i <= curr_index && allow; i++) { dev_dbg(di->dev, "curr change_2 to: %x for 0x%02x\n", (u8)i << shift_value, reg); ret = abx500_set_register_interruptible(di->dev, @@ -1230,6 +1215,8 @@ static int ab8500_charger_set_current(struct ab8500_charger *di, } if (i != curr_index) usleep_range(step_udelay, step_udelay * 2); + + allow = ab8500_charger_check_continue_stepping(di, reg); } } @@ -1255,6 +1242,11 @@ static int ab8500_charger_set_vbus_in_curr(struct ab8500_charger *di, /* We should always use to lowest current limit */ min_value = min(di->bm->chg_params->usb_curr_max, ich_in); + if (di->max_usb_in_curr.set_max > 0) + min_value = min(di->max_usb_in_curr.set_max, min_value); + + if (di->usb_state.usb_current >= 0) + min_value = min(di->usb_state.usb_current, min_value); switch (min_value) { case 100: @@ -1400,8 +1392,8 @@ static int ab8500_charger_ac_en(struct ux500_charger *charger, /* Check if the requested voltage or current is valid */ volt_index = ab8500_voltage_to_regval(vset); - curr_index = ab8500_current_to_regval(iset); - input_curr_index = ab8500_current_to_regval( + curr_index = ab8500_current_to_regval(di, iset); + input_curr_index = ab8500_current_to_regval(di, di->bm->chg_params->ac_curr_max); if (volt_index < 0 || curr_index < 0 || input_curr_index < 0) { dev_err(di->dev, @@ -1572,7 +1564,7 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, /* Check if the requested voltage or current is valid */ volt_index = ab8500_voltage_to_regval(vset); - curr_index = ab8500_current_to_regval(ich_out); + curr_index = ab8500_current_to_regval(di, ich_out); if (volt_index < 0 || curr_index < 0) { dev_err(di->dev, "Charger voltage or current too high, " @@ -1609,7 +1601,8 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, di->usb.charger_online = 1; /* USBChInputCurr: current that can be drawn from the usb */ - ret = ab8500_charger_set_vbus_in_curr(di, di->max_usb_in_curr); + ret = ab8500_charger_set_vbus_in_curr(di, + di->max_usb_in_curr.usb_type_max); if (ret) { dev_err(di->dev, "setting USBChInputCurr failed\n"); return ret; @@ -1668,8 +1661,7 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, dev_dbg(di->dev, "%s Disabled USB charging\n", __func__); /* Cancel any pending Vbat check work */ - if (delayed_work_pending(&di->check_vbat_work)) - cancel_delayed_work(&di->check_vbat_work); + cancel_delayed_work(&di->check_vbat_work); } ab8500_power_supply_changed(di, &di->usb_chg.psy); @@ -1677,6 +1669,128 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, return ret; } +static int ab8500_external_charger_prepare(struct notifier_block *charger_nb, + unsigned long event, void *data) +{ + int ret; + struct device *dev = data; + /*Toggle External charger control pin*/ + ret = abx500_set_register_interruptible(dev, AB8500_SYS_CTRL1_BLOCK, + AB8500_SYS_CHARGER_CONTROL_REG, + EXTERNAL_CHARGER_DISABLE_REG_VAL); + if (ret < 0) { + dev_err(dev, "write reg failed %d\n", ret); + goto out; + } + ret = abx500_set_register_interruptible(dev, AB8500_SYS_CTRL1_BLOCK, + AB8500_SYS_CHARGER_CONTROL_REG, + EXTERNAL_CHARGER_ENABLE_REG_VAL); + if (ret < 0) + dev_err(dev, "Write reg failed %d\n", ret); + +out: + return ret; +} + +/** + * ab8500_charger_usb_check_enable() - enable usb charging + * @charger: pointer to the ux500_charger structure + * @vset: charging voltage + * @iset: charger output current + * + * Check if the VBUS charger has been disconnected and reconnected without + * AB8500 rising an interrupt. Returns 0 on success. + */ +static int ab8500_charger_usb_check_enable(struct ux500_charger *charger, + int vset, int iset) +{ + u8 usbch_ctrl1 = 0; + int ret = 0; + + struct ab8500_charger *di = to_ab8500_charger_usb_device_info(charger); + + if (!di->usb.charger_connected) + return ret; + + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8500_USBCH_CTRL1_REG, &usbch_ctrl1); + if (ret < 0) { + dev_err(di->dev, "ab8500 read failed %d\n", __LINE__); + return ret; + } + dev_dbg(di->dev, "USB charger ctrl: 0x%02x\n", usbch_ctrl1); + + if (!(usbch_ctrl1 & USB_CH_ENA)) { + dev_info(di->dev, "Charging has been disabled abnormally and will be re-enabled\n"); + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CHARGER_CTRL, + DROP_COUNT_RESET, DROP_COUNT_RESET); + if (ret < 0) { + dev_err(di->dev, "ab8500 write failed %d\n", __LINE__); + return ret; + } + + ret = ab8500_charger_usb_en(&di->usb_chg, true, vset, iset); + if (ret < 0) { + dev_err(di->dev, "Failed to enable VBUS charger %d\n", + __LINE__); + return ret; + } + } + return ret; +} + +/** + * ab8500_charger_ac_check_enable() - enable usb charging + * @charger: pointer to the ux500_charger structure + * @vset: charging voltage + * @iset: charger output current + * + * Check if the AC charger has been disconnected and reconnected without + * AB8500 rising an interrupt. Returns 0 on success. + */ +static int ab8500_charger_ac_check_enable(struct ux500_charger *charger, + int vset, int iset) +{ + u8 mainch_ctrl1 = 0; + int ret = 0; + + struct ab8500_charger *di = to_ab8500_charger_ac_device_info(charger); + + if (!di->ac.charger_connected) + return ret; + + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8500_MCH_CTRL1, &mainch_ctrl1); + if (ret < 0) { + dev_err(di->dev, "ab8500 read failed %d\n", __LINE__); + return ret; + } + dev_dbg(di->dev, "AC charger ctrl: 0x%02x\n", mainch_ctrl1); + + if (!(mainch_ctrl1 & MAIN_CH_ENA)) { + dev_info(di->dev, "Charging has been disabled abnormally and will be re-enabled\n"); + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CHARGER_CTRL, + DROP_COUNT_RESET, DROP_COUNT_RESET); + + if (ret < 0) { + dev_err(di->dev, "ab8500 write failed %d\n", __LINE__); + return ret; + } + + ret = ab8500_charger_ac_en(&di->usb_chg, true, vset, iset); + if (ret < 0) { + dev_err(di->dev, "failed to enable AC charger %d\n", + __LINE__); + return ret; + } + } + return ret; +} + /** * ab8500_charger_watchdog_kick() - kick charger watchdog * @di: pointer to the ab8500_charger structure @@ -1734,8 +1848,68 @@ static int ab8500_charger_update_charger_current(struct ux500_charger *charger, /* Reset the main and usb drop input current measurement counter */ ret = abx500_set_register_interruptible(di->dev, AB8500_CHARGER, - AB8500_CHARGER_CTRL, - 0x1); + AB8500_CHARGER_CTRL, DROP_COUNT_RESET); + if (ret) { + dev_err(di->dev, "%s write failed\n", __func__); + return ret; + } + + return ret; +} + +/** + * ab8540_charger_power_path_enable() - enable usb power path mode + * @charger: pointer to the ux500_charger structure + * @enable: enable/disable flag + * + * Enable or disable the power path for usb mode + * Returns error code in case of failure else 0(on success) + */ +static int ab8540_charger_power_path_enable(struct ux500_charger *charger, + bool enable) +{ + int ret; + struct ab8500_charger *di; + + if (charger->psy.type == POWER_SUPPLY_TYPE_USB) + di = to_ab8500_charger_usb_device_info(charger); + else + return -ENXIO; + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_MODE_REG, + BUS_POWER_PATH_MODE_ENA, enable); + if (ret) { + dev_err(di->dev, "%s write failed\n", __func__); + return ret; + } + + return ret; +} + + +/** + * ab8540_charger_usb_pre_chg_enable() - enable usb pre change + * @charger: pointer to the ux500_charger structure + * @enable: enable/disable flag + * + * Enable or disable the pre-chage for usb mode + * Returns error code in case of failure else 0(on success) + */ +static int ab8540_charger_usb_pre_chg_enable(struct ux500_charger *charger, + bool enable) +{ + int ret; + struct ab8500_charger *di; + + if (charger->psy.type == POWER_SUPPLY_TYPE_USB) + di = to_ab8500_charger_usb_device_info(charger); + else + return -ENXIO; + + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_CHR_REG, + BUS_POWER_PATH_PRECHG_ENA, enable); if (ret) { dev_err(di->dev, "%s write failed\n", __func__); return ret; @@ -1823,9 +1997,10 @@ static void ab8500_charger_check_vbat_work(struct work_struct *work) di->vbat > VBAT_TRESH_IP_CUR_RED))) { dev_dbg(di->dev, "Vbat did cross threshold, curr: %d, new: %d," - " old: %d\n", di->max_usb_in_curr, di->vbat, - di->old_vbat); - ab8500_charger_set_vbus_in_curr(di, di->max_usb_in_curr); + " old: %d\n", di->max_usb_in_curr.usb_type_max, + di->vbat, di->old_vbat); + ab8500_charger_set_vbus_in_curr(di, + di->max_usb_in_curr.usb_type_max); power_supply_changed(&di->usb_chg.psy); } @@ -2105,7 +2280,8 @@ static void ab8500_charger_usb_link_attach_work(struct work_struct *work) /* Update maximum input current if USB enumeration is not detected */ if (!di->usb.charger_online) { - ret = ab8500_charger_set_vbus_in_curr(di, di->max_usb_in_curr); + ret = ab8500_charger_set_vbus_in_curr(di, + di->max_usb_in_curr.usb_type_max); if (ret) return; } @@ -2125,6 +2301,7 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work) int detected_chargers; int ret; u8 val; + u8 link_status; struct ab8500_charger *di = container_of(work, struct ab8500_charger, usb_link_status_work); @@ -2144,38 +2321,61 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work) * to start the charging process. but by jumping * thru a few hoops it can be forced to start. */ - ret = abx500_get_register_interruptible(di->dev, AB8500_USB, - AB8500_USB_LINE_STAT_REG, &val); + if (is_ab8500(di->parent)) + ret = abx500_get_register_interruptible(di->dev, AB8500_USB, + AB8500_USB_LINE_STAT_REG, &val); + else + ret = abx500_get_register_interruptible(di->dev, AB8500_USB, + AB8500_USB_LINK1_STAT_REG, &val); + if (ret >= 0) dev_dbg(di->dev, "UsbLineStatus register = 0x%02x\n", val); else dev_dbg(di->dev, "Error reading USB link status\n"); + if (is_ab8500(di->parent)) + link_status = AB8500_USB_LINK_STATUS; + else + link_status = AB8505_USB_LINK_STATUS; + if (detected_chargers & USB_PW_CONN) { - if (((val & AB8500_USB_LINK_STATUS) >> 3) == USB_STAT_NOT_VALID_LINK && + if (((val & link_status) >> USB_LINK_STATUS_SHIFT) == + USB_STAT_NOT_VALID_LINK && di->invalid_charger_detect_state == 0) { - dev_dbg(di->dev, "Invalid charger detected, state= 0\n"); + dev_dbg(di->dev, + "Invalid charger detected, state= 0\n"); /*Enable charger*/ abx500_mask_and_set_register_interruptible(di->dev, - AB8500_CHARGER, AB8500_USBCH_CTRL1_REG, 0x01, 0x01); + AB8500_CHARGER, AB8500_USBCH_CTRL1_REG, + USB_CH_ENA, USB_CH_ENA); /*Enable charger detection*/ - abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB, - AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x01); + abx500_mask_and_set_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINE_CTRL2_REG, + USB_CH_DET, USB_CH_DET); di->invalid_charger_detect_state = 1; /*exit and wait for new link status interrupt.*/ return; } if (di->invalid_charger_detect_state == 1) { - dev_dbg(di->dev, "Invalid charger detected, state= 1\n"); + dev_dbg(di->dev, + "Invalid charger detected, state= 1\n"); /*Stop charger detection*/ - abx500_mask_and_set_register_interruptible(di->dev, AB8500_USB, - AB8500_MCH_IPT_CURLVL_REG, 0x01, 0x00); + abx500_mask_and_set_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINE_CTRL2_REG, + USB_CH_DET, 0x00); /*Check link status*/ - ret = abx500_get_register_interruptible(di->dev, AB8500_USB, - AB8500_USB_LINE_STAT_REG, &val); + if (is_ab8500(di->parent)) + ret = abx500_get_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINE_STAT_REG, + &val); + else + ret = abx500_get_register_interruptible(di->dev, + AB8500_USB, AB8500_USB_LINK1_STAT_REG, + &val); + dev_dbg(di->dev, "USB link status= 0x%02x\n", - (val & AB8500_USB_LINK_STATUS) >> 3); + (val & link_status) >> USB_LINK_STATUS_SHIFT); di->invalid_charger_detect_state = 2; } } else { @@ -2273,7 +2473,7 @@ static void ab8500_charger_usb_state_changed_work(struct work_struct *work) if (!ab8500_charger_get_usb_cur(di)) { /* Update maximum input current */ ret = ab8500_charger_set_vbus_in_curr(di, - di->max_usb_in_curr); + di->max_usb_in_curr.usb_type_max); if (ret) return; @@ -2422,7 +2622,9 @@ static irqreturn_t ab8500_charger_mainchplugdet_handler(int irq, void *_di) mutex_lock(&di->charger_attached_mutex); mutex_unlock(&di->charger_attached_mutex); - queue_delayed_work(di->charger_wq, + + if (is_ab8500(di->parent)) + queue_delayed_work(di->charger_wq, &di->ac_charger_attached_work, HZ); return IRQ_HANDLED; @@ -2491,6 +2693,8 @@ static void ab8500_charger_vbus_drop_end_work(struct work_struct *work) { struct ab8500_charger *di = container_of(work, struct ab8500_charger, vbus_drop_end_work.work); + int ret, curr; + u8 reg_value; di->flags.vbus_drop_end = false; @@ -2498,8 +2702,45 @@ static void ab8500_charger_vbus_drop_end_work(struct work_struct *work) abx500_set_register_interruptible(di->dev, AB8500_CHARGER, AB8500_CHARGER_CTRL, 0x01); + if (is_ab8540(di->parent)) + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8540_CH_USBCH_STAT3_REG, ®_value); + else + ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, + AB8500_CH_USBCH_STAT2_REG, ®_value); + if (ret < 0) { + dev_err(di->dev, "%s read failed\n", __func__); + return; + } + + if (is_ab8540(di->parent)) + curr = di->bm->chg_input_curr[ + reg_value & AB8540_AUTO_VBUS_IN_CURR_MASK]; + else + curr = di->bm->chg_input_curr[ + reg_value >> AUTO_VBUS_IN_CURR_LIM_SHIFT]; + + if (di->max_usb_in_curr.calculated_max != curr) { + /* USB source is collapsing */ + di->max_usb_in_curr.calculated_max = curr; + dev_dbg(di->dev, + "VBUS input current limiting to %d mA\n", + di->max_usb_in_curr.calculated_max); + } else { + /* + * USB source can not give more than this amount. + * Taking more will collapse the source. + */ + di->max_usb_in_curr.set_max = + di->max_usb_in_curr.calculated_max; + dev_dbg(di->dev, + "VBUS input current limited to %d mA\n", + di->max_usb_in_curr.set_max); + } + if (di->usb.charger_connected) - ab8500_charger_set_vbus_in_curr(di, di->max_usb_in_curr); + ab8500_charger_set_vbus_in_curr(di, + di->max_usb_in_curr.usb_type_max); } /** @@ -2654,8 +2895,13 @@ static irqreturn_t ab8500_charger_vbuschdropend_handler(int irq, void *_di) dev_dbg(di->dev, "VBUS charger drop ended\n"); di->flags.vbus_drop_end = true; + + /* + * VBUS might have dropped due to bad connection. + * Schedule a new input limit set to the value SW requests. + */ queue_delayed_work(di->charger_wq, &di->vbus_drop_end_work, - round_jiffies(30 * HZ)); + round_jiffies(VBUS_IN_CURR_LIM_RETRY_SET_TIME * HZ)); return IRQ_HANDLED; } @@ -2836,6 +3082,7 @@ static int ab8500_charger_usb_get_property(struct power_supply *psy, static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) { int ret = 0; + u8 bup_vch_range = 0, vbup33_vrtcn = 0; /* Setup maximum charger current and voltage for ABB cut2.0 */ if (!is_ab8500_1p1_or_earlier(di->parent)) { @@ -2848,9 +3095,14 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) goto out; } - ret = abx500_set_register_interruptible(di->dev, - AB8500_CHARGER, - AB8500_CH_OPT_CRNTLVL_MAX_REG, CH_OP_CUR_LVL_1P6); + if (is_ab8540(di->parent)) + ret = abx500_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CH_OPT_CRNTLVL_MAX_REG, + CH_OP_CUR_LVL_2P); + else + ret = abx500_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8500_CH_OPT_CRNTLVL_MAX_REG, + CH_OP_CUR_LVL_1P6); if (ret) { dev_err(di->dev, "failed to set CH_OPT_CRNTLVL_MAX_REG\n"); @@ -2858,7 +3110,8 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) } } - if (is_ab9540_2p0(di->parent) || is_ab8505_2p0(di->parent)) + if (is_ab9540_2p0(di->parent) || is_ab9540_3p0(di->parent) + || is_ab8505_2p0(di->parent) || is_ab8540(di->parent)) ret = abx500_mask_and_set_register_interruptible(di->dev, AB8500_CHARGER, AB8500_USBCH_CTRL2_REG, @@ -2930,14 +3183,6 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) goto out; } - /* Set charger watchdog timeout */ - ret = abx500_set_register_interruptible(di->dev, AB8500_CHARGER, - AB8500_CH_WD_TIMER_REG, WD_TIMER); - if (ret) { - dev_err(di->dev, "failed to set charger watchdog timeout\n"); - goto out; - } - ret = ab8500_charger_led_en(di, false); if (ret < 0) { dev_err(di->dev, "failed to disable LED\n"); @@ -2945,15 +3190,30 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) } /* Backup battery voltage and current */ + if (di->bm->bkup_bat_v > BUP_VCH_SEL_3P1V) + bup_vch_range = BUP_VCH_RANGE; + if (di->bm->bkup_bat_v == BUP_VCH_SEL_3P3V) + vbup33_vrtcn = VBUP33_VRTCN; + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8500_RTC_BACKUP_CHG_REG, - di->bm->bkup_bat_v | - di->bm->bkup_bat_i); + (di->bm->bkup_bat_v & 0x3) | di->bm->bkup_bat_i); if (ret) { dev_err(di->dev, "failed to setup backup battery charging\n"); goto out; } + if (is_ab8540(di->parent)) { + ret = abx500_set_register_interruptible(di->dev, + AB8500_RTC, + AB8500_RTC_CTRL1_REG, + bup_vch_range | vbup33_vrtcn); + if (ret) { + dev_err(di->dev, + "failed to setup backup battery charging\n"); + goto out; + } + } /* Enable backup battery charging */ abx500_mask_and_set_register_interruptible(di->dev, @@ -2962,6 +3222,25 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) if (ret < 0) dev_err(di->dev, "%s mask and set failed\n", __func__); + if (is_ab8540(di->parent)) { + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_MODE_REG, + BUS_VSYS_VOL_SELECT_MASK, BUS_VSYS_VOL_SELECT_3P6V); + if (ret) { + dev_err(di->dev, + "failed to setup usb power path vsys voltage\n"); + goto out; + } + ret = abx500_mask_and_set_register_interruptible(di->dev, + AB8500_CHARGER, AB8540_USB_PP_CHR_REG, + BUS_PP_PRECHG_CURRENT_MASK, 0); + if (ret) { + dev_err(di->dev, + "failed to setup usb power path prechage current\n"); + goto out; + } + } + out: return ret; } @@ -3055,11 +3334,8 @@ static int ab8500_charger_resume(struct platform_device *pdev) dev_err(di->dev, "Failed to kick WD!\n"); /* If not already pending start a new timer */ - if (!delayed_work_pending( - &di->kick_wd_work)) { - queue_delayed_work(di->charger_wq, &di->kick_wd_work, - round_jiffies(WD_KICK_INTERVAL)); - } + queue_delayed_work(di->charger_wq, &di->kick_wd_work, + round_jiffies(WD_KICK_INTERVAL)); } /* If we still have a HW failure, schedule a new check */ @@ -3079,12 +3355,9 @@ static int ab8500_charger_suspend(struct platform_device *pdev, { struct ab8500_charger *di = platform_get_drvdata(pdev); - /* Cancel any pending HW failure check */ - if (delayed_work_pending(&di->check_hw_failure_work)) - cancel_delayed_work(&di->check_hw_failure_work); - - if (delayed_work_pending(&di->vbus_drop_end_work)) - cancel_delayed_work(&di->vbus_drop_end_work); + /* Cancel any pending jobs */ + cancel_delayed_work(&di->check_hw_failure_work); + cancel_delayed_work(&di->vbus_drop_end_work); flush_delayed_work(&di->attach_work); flush_delayed_work(&di->usb_charger_attached_work); @@ -3107,6 +3380,10 @@ static int ab8500_charger_suspend(struct platform_device *pdev, #define ab8500_charger_resume NULL #endif +static struct notifier_block charger_nb = { + .notifier_call = ab8500_external_charger_prepare, +}; + static int ab8500_charger_remove(struct platform_device *pdev) { struct ab8500_charger *di = platform_get_drvdata(pdev); @@ -3136,13 +3413,18 @@ static int ab8500_charger_remove(struct platform_device *pdev) /* Delete the work queue */ destroy_workqueue(di->charger_wq); + /* Unregister external charger enable notifier */ + if (!di->ac_chg.enabled) + blocking_notifier_chain_unregister( + &charger_notifier_list, &charger_nb); + flush_scheduled_work(); - if(di->usb_chg.enabled) + if (di->usb_chg.enabled) power_supply_unregister(&di->usb_chg.psy); -#if !defined(CONFIG_CHARGER_PM2301) - if(di->ac_chg.enabled) + + if (di->ac_chg.enabled && !di->ac_chg.external) power_supply_unregister(&di->ac_chg.psy); -#endif + platform_set_drvdata(pdev, NULL); return 0; @@ -3206,16 +3488,22 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->ac_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface), /* ux500_charger sub-class */ di->ac_chg.ops.enable = &ab8500_charger_ac_en; + di->ac_chg.ops.check_enable = &ab8500_charger_ac_check_enable; di->ac_chg.ops.kick_wd = &ab8500_charger_watchdog_kick; di->ac_chg.ops.update_curr = &ab8500_charger_update_charger_current; di->ac_chg.max_out_volt = ab8500_charger_voltage_map[ ARRAY_SIZE(ab8500_charger_voltage_map) - 1]; - di->ac_chg.max_out_curr = ab8500_charger_current_map[ - ARRAY_SIZE(ab8500_charger_current_map) - 1]; + di->ac_chg.max_out_curr = + di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1]; di->ac_chg.wdt_refresh = CHG_WD_INTERVAL; di->ac_chg.enabled = di->bm->ac_enabled; di->ac_chg.external = false; + /*notifier for external charger enabling*/ + if (!di->ac_chg.enabled) + blocking_notifier_chain_register( + &charger_notifier_list, &charger_nb); + /* USB supply */ /* power_supply base class */ di->usb_chg.psy.name = "ab8500_usb"; @@ -3227,15 +3515,20 @@ static int ab8500_charger_probe(struct platform_device *pdev) di->usb_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface), /* ux500_charger sub-class */ di->usb_chg.ops.enable = &ab8500_charger_usb_en; + di->usb_chg.ops.check_enable = &ab8500_charger_usb_check_enable; di->usb_chg.ops.kick_wd = &ab8500_charger_watchdog_kick; di->usb_chg.ops.update_curr = &ab8500_charger_update_charger_current; + di->usb_chg.ops.pp_enable = &ab8540_charger_power_path_enable; + di->usb_chg.ops.pre_chg_enable = &ab8540_charger_usb_pre_chg_enable; di->usb_chg.max_out_volt = ab8500_charger_voltage_map[ ARRAY_SIZE(ab8500_charger_voltage_map) - 1]; - di->usb_chg.max_out_curr = ab8500_charger_current_map[ - ARRAY_SIZE(ab8500_charger_current_map) - 1]; + di->usb_chg.max_out_curr = + di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1]; di->usb_chg.wdt_refresh = CHG_WD_INTERVAL; di->usb_chg.enabled = di->bm->usb_enabled; di->usb_chg.external = false; + di->usb_chg.power_path = di->bm->usb_power_path; + di->usb_state.usb_current = -1; /* Create a work queue for the charger */ di->charger_wq = @@ -3316,7 +3609,7 @@ static int ab8500_charger_probe(struct platform_device *pdev) } /* Register AC charger class */ - if(di->ac_chg.enabled) { + if (di->ac_chg.enabled) { ret = power_supply_register(di->dev, &di->ac_chg.psy); if (ret) { dev_err(di->dev, "failed to register AC charger\n"); @@ -3325,7 +3618,7 @@ static int ab8500_charger_probe(struct platform_device *pdev) } /* Register USB charger class */ - if(di->usb_chg.enabled) { + if (di->usb_chg.enabled) { ret = power_supply_register(di->dev, &di->usb_chg.psy); if (ret) { dev_err(di->dev, "failed to register USB charger\n"); @@ -3385,14 +3678,16 @@ static int ab8500_charger_probe(struct platform_device *pdev) ch_stat = ab8500_charger_detect_chargers(di, false); if ((ch_stat & AC_PW_CONN) == AC_PW_CONN) { - queue_delayed_work(di->charger_wq, - &di->ac_charger_attached_work, - HZ); + if (is_ab8500(di->parent)) + queue_delayed_work(di->charger_wq, + &di->ac_charger_attached_work, + HZ); } if ((ch_stat & USB_PW_CONN) == USB_PW_CONN) { - queue_delayed_work(di->charger_wq, - &di->usb_charger_attached_work, - HZ); + if (is_ab8500(di->parent)) + queue_delayed_work(di->charger_wq, + &di->usb_charger_attached_work, + HZ); } mutex_unlock(&di->charger_attached_mutex); @@ -3410,10 +3705,10 @@ free_irq: put_usb_phy: usb_put_phy(di->usb_phy); free_usb: - if(di->usb_chg.enabled) + if (di->usb_chg.enabled) power_supply_unregister(&di->usb_chg.psy); free_ac: - if(di->ac_chg.enabled) + if (di->ac_chg.enabled) power_supply_unregister(&di->ac_chg.psy); free_charger_wq: destroy_workqueue(di->charger_wq); diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c index 25dae4c..c5391f5 100644 --- a/drivers/power/ab8500_fg.c +++ b/drivers/power/ab8500_fg.c @@ -36,7 +36,7 @@ #define MILLI_TO_MICRO 1000 #define FG_LSB_IN_MA 1627 -#define QLSB_NANO_AMP_HOURS_X10 1129 +#define QLSB_NANO_AMP_HOURS_X10 1071 #define INS_CURR_TIMEOUT (3 * HZ) #define SEC_TO_SAMPLE(S) (S * 4) @@ -672,11 +672,11 @@ int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res) /* * Convert to unit value in mA * Full scale input voltage is - * 66.660mV => LSB = 66.660mV/(4096*res) = 1.627mA + * 63.160mV => LSB = 63.160mV/(4096*res) = 1.542mA * Given a 250ms conversion cycle time the LSB corresponds - * to 112.9 nAh. Convert to current by dividing by the conversion + * to 107.1 nAh. Convert to current by dividing by the conversion * time in hours (250ms = 1 / (3600 * 4)h) - * 112.9nAh assumes 10mOhm, but fg_res is in 0.1mOhm + * 107.1nAh assumes 10mOhm, but fg_res is in 0.1mOhm */ val = (val * QLSB_NANO_AMP_HOURS_X10 * 36 * 4) / (1000 * di->bm->fg_res); @@ -863,7 +863,7 @@ static int ab8500_fg_bat_voltage(struct ab8500_fg *di) static int ab8500_fg_volt_to_capacity(struct ab8500_fg *di, int voltage) { int i, tbl_size; - struct abx500_v_to_cap *tbl; + const struct abx500_v_to_cap *tbl; int cap = 0; tbl = di->bm->bat_type[di->bm->batt_id].v_to_cap_tbl, @@ -915,7 +915,7 @@ static int ab8500_fg_uncomp_volt_to_capacity(struct ab8500_fg *di) static int ab8500_fg_battery_resistance(struct ab8500_fg *di) { int i, tbl_size; - struct batres_vs_temp *tbl; + const struct batres_vs_temp *tbl; int resist = 0; tbl = di->bm->bat_type[di->bm->batt_id].batres_tbl; @@ -1354,9 +1354,6 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init) * algorithm says. */ di->bat_cap.prev_percent = 1; - di->bat_cap.permille = 1; - di->bat_cap.prev_mah = 1; - di->bat_cap.mah = 1; percent = 1; changed = true; @@ -1683,7 +1680,6 @@ static void ab8500_fg_algorithm_discharging(struct ab8500_fg *di) break; case AB8500_FG_DISCHARGE_WAKEUP: - ab8500_fg_coulomb_counter(di, true); ab8500_fg_calc_cap_discharge_voltage(di, true); di->fg_samples = SEC_TO_SAMPLE( @@ -1768,9 +1764,10 @@ static void ab8500_fg_algorithm(struct ab8500_fg *di) ab8500_fg_algorithm_discharging(di); } - dev_dbg(di->dev, "[FG_DATA] %d %d %d %d %d %d %d %d %d " + dev_dbg(di->dev, "[FG_DATA] %d %d %d %d %d %d %d %d %d %d " "%d %d %d %d %d %d %d\n", di->bat_cap.max_mah_design, + di->bat_cap.max_mah, di->bat_cap.mah, di->bat_cap.permille, di->bat_cap.level, @@ -1982,7 +1979,7 @@ static void ab8500_fg_instant_work(struct work_struct *work) } /** - * ab8500_fg_cc_data_end_handler() - isr to get battery avg current. + * ab8500_fg_cc_data_end_handler() - end of data conversion isr. * @irq: interrupt number * @_di: pointer to the ab8500_fg structure * @@ -2002,7 +1999,7 @@ static irqreturn_t ab8500_fg_cc_data_end_handler(int irq, void *_di) } /** - * ab8500_fg_cc_convend_handler() - isr to get battery avg current. + * ab8500_fg_cc_int_calib_handler () - end of calibration isr. * @irq: interrupt number * @_di: pointer to the ab8500_fg structure * @@ -2153,9 +2150,7 @@ static int ab8500_fg_get_property(struct power_supply *psy, val->intval = di->bat_cap.prev_mah; break; case POWER_SUPPLY_PROP_CAPACITY: - if (di->bm->capacity_scaling) - val->intval = di->bat_cap.cap_scale.scaled_cap; - else if (di->flags.batt_unknown && !di->bm->chg_unknown_bat && + if (di->flags.batt_unknown && !di->bm->chg_unknown_bat && di->flags.batt_id_received) val->intval = 100; else @@ -2344,6 +2339,50 @@ static int ab8500_fg_init_hw_registers(struct ab8500_fg *di) dev_err(di->dev, "BattOk init write failed.\n"); goto out; } + + if (((is_ab8505(di->parent) || is_ab9540(di->parent)) && + abx500_get_chip_id(di->dev) >= AB8500_CUT2P0) + || is_ab8540(di->parent)) { + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_MAX_TIME_REG, di->bm->fg_params->pcut_max_time); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_MAX_TIME_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_FLAG_TIME_REG, di->bm->fg_params->pcut_flag_time); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_FLAG_TIME_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, di->bm->fg_params->pcut_max_restart); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_RESTART_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_DEBOUNCE_REG, di->bm->fg_params->pcut_debounce_time); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_DEBOUNCE_REG\n", __func__); + goto out; + }; + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, di->bm->fg_params->pcut_enable); + + if (ret) { + dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_CTL_STATUS_REG\n", __func__); + goto out; + }; + } out: return ret; } @@ -2546,6 +2585,428 @@ static int ab8500_fg_sysfs_init(struct ab8500_fg *di) return ret; } + +static ssize_t ab8505_powercut_flagtime_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_FLAG_TIME_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_FLAG_TIME_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7F)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_flagtime_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + long unsigned reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + + if (reg_value > 0x7F) { + dev_err(dev, "Incorrect parameter, echo 0 (1.98s) - 127 (15.625ms) for flagtime\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_FLAG_TIME_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_FLAG_TIME_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_maxtime_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_MAX_TIME_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_MAX_TIME_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7F)); + +fail: + return ret; + +} + +static ssize_t ab8505_powercut_maxtime_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0x7F) { + dev_err(dev, "Incorrect parameter, echo 0 (0.0s) - 127 (1.98s) for maxtime\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_MAX_TIME_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_MAX_TIME_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_restart_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_RESTART_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0xF)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_restart_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0xF) { + dev_err(dev, "Incorrect parameter, echo 0 - 15 for number of restart\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_RESTART_REG\n"); + +fail: + return count; + +} + +static ssize_t ab8505_powercut_timer_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_TIME_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_TIME_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7F)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_restart_counter_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_RESTART_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_RESTART_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0xF0) >> 4); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, ®_value); + + if (ret < 0) + goto fail; + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x1)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0x1) { + dev_err(dev, "Incorrect parameter, echo 0/1 to disable/enable Pcut feature\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_CTL_STATUS_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_flag_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_CTL_STATUS_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", ((reg_value & 0x10) >> 4)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_debounce_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_DEBOUNCE_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_DEBOUNCE_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", (reg_value & 0x7)); + +fail: + return ret; +} + +static ssize_t ab8505_powercut_debounce_write(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + int reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + reg_value = simple_strtoul(buf, NULL, 10); + if (reg_value > 0x7) { + dev_err(dev, "Incorrect parameter, echo 0 to 7 for debounce setting\n"); + goto fail; + } + + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_DEBOUNCE_REG, (u8)reg_value); + + if (ret < 0) + dev_err(dev, "Failed to set AB8505_RTC_PCUT_DEBOUNCE_REG\n"); + +fail: + return count; +} + +static ssize_t ab8505_powercut_enable_status_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int ret; + u8 reg_value; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + ret = abx500_get_register_interruptible(di->dev, AB8500_RTC, + AB8505_RTC_PCUT_CTL_STATUS_REG, ®_value); + + if (ret < 0) { + dev_err(dev, "Failed to read AB8505_RTC_PCUT_CTL_STATUS_REG\n"); + goto fail; + } + + return scnprintf(buf, PAGE_SIZE, "%d\n", ((reg_value & 0x20) >> 5)); + +fail: + return ret; +} + +static struct device_attribute ab8505_fg_sysfs_psy_attrs[] = { + __ATTR(powercut_flagtime, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_flagtime_read, ab8505_powercut_flagtime_write), + __ATTR(powercut_maxtime, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_maxtime_read, ab8505_powercut_maxtime_write), + __ATTR(powercut_restart_max, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_restart_read, ab8505_powercut_restart_write), + __ATTR(powercut_timer, S_IRUGO, ab8505_powercut_timer_read, NULL), + __ATTR(powercut_restart_counter, S_IRUGO, + ab8505_powercut_restart_counter_read, NULL), + __ATTR(powercut_enable, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_read, ab8505_powercut_write), + __ATTR(powercut_flag, S_IRUGO, ab8505_powercut_flag_read, NULL), + __ATTR(powercut_debounce_time, (S_IRUGO | S_IWUSR | S_IWGRP), + ab8505_powercut_debounce_read, ab8505_powercut_debounce_write), + __ATTR(powercut_enable_status, S_IRUGO, + ab8505_powercut_enable_status_read, NULL), +}; + +static int ab8500_fg_sysfs_psy_create_attrs(struct device *dev) +{ + unsigned int i, j; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + if (((is_ab8505(di->parent) || is_ab9540(di->parent)) && + abx500_get_chip_id(dev->parent) >= AB8500_CUT2P0) + || is_ab8540(di->parent)) { + for (j = 0; j < ARRAY_SIZE(ab8505_fg_sysfs_psy_attrs); j++) + if (device_create_file(dev, &ab8505_fg_sysfs_psy_attrs[j])) + goto sysfs_psy_create_attrs_failed_ab8505; + } + return 0; +sysfs_psy_create_attrs_failed_ab8505: + dev_err(dev, "Failed creating sysfs psy attrs for ab8505.\n"); + while (j--) + device_remove_file(dev, &ab8505_fg_sysfs_psy_attrs[i]); + + return -EIO; +} + +static void ab8500_fg_sysfs_psy_remove_attrs(struct device *dev) +{ + unsigned int i; + struct power_supply *psy = dev_get_drvdata(dev); + struct ab8500_fg *di; + + di = to_ab8500_fg_device_info(psy); + + if (((is_ab8505(di->parent) || is_ab9540(di->parent)) && + abx500_get_chip_id(dev->parent) >= AB8500_CUT2P0) + || is_ab8540(di->parent)) { + for (i = 0; i < ARRAY_SIZE(ab8505_fg_sysfs_psy_attrs); i++) + (void)device_remove_file(dev, &ab8505_fg_sysfs_psy_attrs[i]); + } +} + /* Exposure to the sysfs interface <> */ #if defined(CONFIG_PM) @@ -2607,6 +3068,7 @@ static int ab8500_fg_remove(struct platform_device *pdev) ab8500_fg_sysfs_exit(di); flush_scheduled_work(); + ab8500_fg_sysfs_psy_remove_attrs(di->fg_psy.dev); power_supply_unregister(&di->fg_psy); platform_set_drvdata(pdev, NULL); return ret; @@ -2772,6 +3234,13 @@ static int ab8500_fg_probe(struct platform_device *pdev) goto free_irq; } + ret = ab8500_fg_sysfs_psy_create_attrs(di->fg_psy.dev); + if (ret) { + dev_err(di->dev, "failed to create FG psy\n"); + ab8500_fg_sysfs_exit(di); + goto free_irq; + } + /* Calibrate the fg first time */ di->flags.calibrate = true; di->calib_state = AB8500_FG_CALIB_INIT; diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c index f043c08..9863e42 100644 --- a/drivers/power/abx500_chargalg.c +++ b/drivers/power/abx500_chargalg.c @@ -1,5 +1,6 @@ /* * Copyright (C) ST-Ericsson SA 2012 + * Copyright (c) 2012 Sony Mobile Communications AB * * Charging algorithm driver for abx500 variants * @@ -8,11 +9,13 @@ * Johan Palsson * Karl Komierowski * Arun R Murthy + * Author: Imre Sunyi */ #include #include #include +#include #include #include #include @@ -24,8 +27,10 @@ #include #include #include +#include #include #include +#include /* Watchdog kick interval */ #define CHG_WD_INTERVAL (6 * HZ) @@ -33,6 +38,18 @@ /* End-of-charge criteria counter */ #define EOC_COND_CNT 10 +/* One hour expressed in seconds */ +#define ONE_HOUR_IN_SECONDS 3600 + +/* Five minutes expressed in seconds */ +#define FIVE_MINUTES_IN_SECONDS 300 + +/* Plus margin for the low battery threshold */ +#define BAT_PLUS_MARGIN (100) + +#define CHARGALG_CURR_STEP_LOW 0 +#define CHARGALG_CURR_STEP_HIGH 100 + #define to_abx500_chargalg_device_info(x) container_of((x), \ struct abx500_chargalg, chargalg_psy); @@ -66,6 +83,11 @@ struct abx500_chargalg_suspension_status { bool usb_suspended; }; +struct abx500_chargalg_current_step_status { + bool curr_step_change; + int curr_step; +}; + struct abx500_chargalg_battery_data { int temp; int volt; @@ -82,6 +104,7 @@ enum abx500_chargalg_states { STATE_HW_TEMP_PROTECT_INIT, STATE_HW_TEMP_PROTECT, STATE_NORMAL_INIT, + STATE_USB_PP_PRE_CHARGE, STATE_NORMAL, STATE_WAIT_FOR_RECHARGE_INIT, STATE_WAIT_FOR_RECHARGE, @@ -113,6 +136,7 @@ static const char *states[] = { "HW_TEMP_PROTECT_INIT", "HW_TEMP_PROTECT", "NORMAL_INIT", + "USB_PP_PRE_CHARGE", "NORMAL", "WAIT_FOR_RECHARGE_INIT", "WAIT_FOR_RECHARGE", @@ -204,6 +228,8 @@ enum maxim_ret { * @batt_data: data of the battery * @susp_status: current charger suspension status * @bm: Platform specific battery management information + * @curr_status: Current step status for over-current protection + * @parent: pointer to the struct abx500 * @chargalg_psy: structure that holds the battery properties exposed by * the charging algorithm * @events: structure for information about events triggered @@ -227,6 +253,8 @@ struct abx500_chargalg { struct abx500_chargalg_charger_info chg_info; struct abx500_chargalg_battery_data batt_data; struct abx500_chargalg_suspension_status susp_status; + struct ab8500 *parent; + struct abx500_chargalg_current_step_status curr_status; struct abx500_bm_data *bm; struct power_supply chargalg_psy; struct ux500_charger *ac_chg; @@ -236,51 +264,69 @@ struct abx500_chargalg { struct delayed_work chargalg_periodic_work; struct delayed_work chargalg_wd_work; struct work_struct chargalg_work; - struct timer_list safety_timer; - struct timer_list maintenance_timer; + struct hrtimer safety_timer; + struct hrtimer maintenance_timer; struct kobject chargalg_kobject; }; +/*External charger prepare notifier*/ +BLOCKING_NOTIFIER_HEAD(charger_notifier_list); + /* Main battery properties */ static enum power_supply_property abx500_chargalg_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_HEALTH, }; +struct abx500_chargalg_sysfs_entry { + struct attribute attr; + ssize_t (*show)(struct abx500_chargalg *, char *); + ssize_t (*store)(struct abx500_chargalg *, const char *, size_t); +}; + /** * abx500_chargalg_safety_timer_expired() - Expiration of the safety timer - * @data: pointer to the abx500_chargalg structure + * @timer: pointer to the hrtimer structure * * This function gets called when the safety timer for the charger * expires */ -static void abx500_chargalg_safety_timer_expired(unsigned long data) +static enum hrtimer_restart +abx500_chargalg_safety_timer_expired(struct hrtimer *timer) { - struct abx500_chargalg *di = (struct abx500_chargalg *) data; + struct abx500_chargalg *di = container_of(timer, struct abx500_chargalg, + safety_timer); dev_err(di->dev, "Safety timer expired\n"); di->events.safety_timer_expired = true; /* Trigger execution of the algorithm instantly */ queue_work(di->chargalg_wq, &di->chargalg_work); + + return HRTIMER_NORESTART; } /** * abx500_chargalg_maintenance_timer_expired() - Expiration of * the maintenance timer - * @i: pointer to the abx500_chargalg structure + * @timer: pointer to the timer structure * * This function gets called when the maintenence timer * expires */ -static void abx500_chargalg_maintenance_timer_expired(unsigned long data) +static enum hrtimer_restart +abx500_chargalg_maintenance_timer_expired(struct hrtimer *timer) { - struct abx500_chargalg *di = (struct abx500_chargalg *) data; + struct abx500_chargalg *di = container_of(timer, struct abx500_chargalg, + maintenance_timer); + dev_dbg(di->dev, "Maintenance timer expired\n"); di->events.maintenance_timer_expired = true; /* Trigger execution of the algorithm instantly */ queue_work(di->chargalg_wq, &di->chargalg_work); + + return HRTIMER_NORESTART; } /** @@ -303,6 +349,30 @@ static void abx500_chargalg_state_to(struct abx500_chargalg *di, di->charge_state = state; } +static int abx500_chargalg_check_charger_enable(struct abx500_chargalg *di) +{ + switch (di->charge_state) { + case STATE_NORMAL: + case STATE_MAINTENANCE_A: + case STATE_MAINTENANCE_B: + break; + default: + return 0; + } + + if (di->chg_info.charger_type & USB_CHG) { + return di->usb_chg->ops.check_enable(di->usb_chg, + di->bm->bat_type[di->bm->batt_id].normal_vol_lvl, + di->bm->bat_type[di->bm->batt_id].normal_cur_lvl); + } else if ((di->chg_info.charger_type & AC_CHG) && + !(di->ac_chg->external)) { + return di->ac_chg->ops.check_enable(di->ac_chg, + di->bm->bat_type[di->bm->batt_id].normal_vol_lvl, + di->bm->bat_type[di->bm->batt_id].normal_cur_lvl); + } + return 0; +} + /** * abx500_chargalg_check_charger_connection() - Check charger connection change * @di: pointer to the abx500_chargalg structure @@ -348,6 +418,22 @@ static int abx500_chargalg_check_charger_connection(struct abx500_chargalg *di) } /** + * abx500_chargalg_check_current_step_status() - Check charging current + * step status. + * @di: pointer to the abx500_chargalg structure + * + * This function will check if there is a change in the charging current step + * and change charge state accordingly. + */ +static void abx500_chargalg_check_current_step_status + (struct abx500_chargalg *di) +{ + if (di->curr_status.curr_step_change) + abx500_chargalg_state_to(di, STATE_NORMAL_INIT); + di->curr_status.curr_step_change = false; +} + +/** * abx500_chargalg_start_safety_timer() - Start charging safety timer * @di: pointer to the abx500_chargalg structure * @@ -356,19 +442,16 @@ static int abx500_chargalg_check_charger_connection(struct abx500_chargalg *di) */ static void abx500_chargalg_start_safety_timer(struct abx500_chargalg *di) { - unsigned long timer_expiration = 0; + /* Charger-dependent expiration time in hours*/ + int timer_expiration = 0; switch (di->chg_info.charger_type) { case AC_CHG: - timer_expiration = - round_jiffies(jiffies + - (di->bm->main_safety_tmr_h * 3600 * HZ)); + timer_expiration = di->bm->main_safety_tmr_h; break; case USB_CHG: - timer_expiration = - round_jiffies(jiffies + - (di->bm->usb_safety_tmr_h * 3600 * HZ)); + timer_expiration = di->bm->usb_safety_tmr_h; break; default: @@ -377,11 +460,10 @@ static void abx500_chargalg_start_safety_timer(struct abx500_chargalg *di) } di->events.safety_timer_expired = false; - di->safety_timer.expires = timer_expiration; - if (!timer_pending(&di->safety_timer)) - add_timer(&di->safety_timer); - else - mod_timer(&di->safety_timer, timer_expiration); + hrtimer_set_expires_range(&di->safety_timer, + ktime_set(timer_expiration * ONE_HOUR_IN_SECONDS, 0), + ktime_set(FIVE_MINUTES_IN_SECONDS, 0)); + hrtimer_start_expires(&di->safety_timer, HRTIMER_MODE_REL); } /** @@ -392,8 +474,8 @@ static void abx500_chargalg_start_safety_timer(struct abx500_chargalg *di) */ static void abx500_chargalg_stop_safety_timer(struct abx500_chargalg *di) { - di->events.safety_timer_expired = false; - del_timer(&di->safety_timer); + if (hrtimer_try_to_cancel(&di->safety_timer) >= 0) + di->events.safety_timer_expired = false; } /** @@ -408,17 +490,11 @@ static void abx500_chargalg_stop_safety_timer(struct abx500_chargalg *di) static void abx500_chargalg_start_maintenance_timer(struct abx500_chargalg *di, int duration) { - unsigned long timer_expiration; - - /* Convert from hours to jiffies */ - timer_expiration = round_jiffies(jiffies + (duration * 3600 * HZ)); - + hrtimer_set_expires_range(&di->maintenance_timer, + ktime_set(duration * ONE_HOUR_IN_SECONDS, 0), + ktime_set(FIVE_MINUTES_IN_SECONDS, 0)); di->events.maintenance_timer_expired = false; - di->maintenance_timer.expires = timer_expiration; - if (!timer_pending(&di->maintenance_timer)) - add_timer(&di->maintenance_timer); - else - mod_timer(&di->maintenance_timer, timer_expiration); + hrtimer_start_expires(&di->maintenance_timer, HRTIMER_MODE_REL); } /** @@ -430,8 +506,8 @@ static void abx500_chargalg_start_maintenance_timer(struct abx500_chargalg *di, */ static void abx500_chargalg_stop_maintenance_timer(struct abx500_chargalg *di) { - di->events.maintenance_timer_expired = false; - del_timer(&di->maintenance_timer); + if (hrtimer_try_to_cancel(&di->maintenance_timer) >= 0) + di->events.maintenance_timer_expired = false; } /** @@ -477,6 +553,8 @@ static int abx500_chargalg_kick_watchdog(struct abx500_chargalg *di) static int abx500_chargalg_ac_en(struct abx500_chargalg *di, int enable, int vset, int iset) { + static int abx500_chargalg_ex_ac_enable_toggle; + if (!di->ac_chg || !di->ac_chg->ops.enable) return -ENXIO; @@ -489,6 +567,14 @@ static int abx500_chargalg_ac_en(struct abx500_chargalg *di, int enable, di->chg_info.ac_iset = iset; di->chg_info.ac_vset = vset; + /* Enable external charger */ + if (enable && di->ac_chg->external && + !abx500_chargalg_ex_ac_enable_toggle) { + blocking_notifier_call_chain(&charger_notifier_list, + 0, di->dev); + abx500_chargalg_ex_ac_enable_toggle++; + } + return di->ac_chg->ops.enable(di->ac_chg, enable, vset, iset); } @@ -520,6 +606,37 @@ static int abx500_chargalg_usb_en(struct abx500_chargalg *di, int enable, return di->usb_chg->ops.enable(di->usb_chg, enable, vset, iset); } + /** + * ab8540_chargalg_usb_pp_en() - Enable/ disable USB power path + * @di: pointer to the abx500_chargalg structure + * @enable: power path enable/disable + * + * The USB power path will be enable/ disable + */ +static int ab8540_chargalg_usb_pp_en(struct abx500_chargalg *di, bool enable) +{ + if (!di->usb_chg || !di->usb_chg->ops.pp_enable) + return -ENXIO; + + return di->usb_chg->ops.pp_enable(di->usb_chg, enable); +} + +/** + * ab8540_chargalg_usb_pre_chg_en() - Enable/ disable USB pre-charge + * @di: pointer to the abx500_chargalg structure + * @enable: USB pre-charge enable/disable + * + * The USB USB pre-charge will be enable/ disable + */ +static int ab8540_chargalg_usb_pre_chg_en(struct abx500_chargalg *di, + bool enable) +{ + if (!di->usb_chg || !di->usb_chg->ops.pre_chg_enable) + return -ENXIO; + + return di->usb_chg->ops.pre_chg_enable(di->usb_chg, enable); +} + /** * abx500_chargalg_update_chg_curr() - Update charger current * @di: pointer to the abx500_chargalg structure @@ -613,8 +730,6 @@ static void abx500_chargalg_hold_charging(struct abx500_chargalg *di) static void abx500_chargalg_start_charging(struct abx500_chargalg *di, int vset, int iset) { - bool start_chargalg_wd = true; - switch (di->chg_info.charger_type) { case AC_CHG: dev_dbg(di->dev, @@ -632,12 +747,8 @@ static void abx500_chargalg_start_charging(struct abx500_chargalg *di, default: dev_err(di->dev, "Unknown charger to charge from\n"); - start_chargalg_wd = false; break; } - - if (start_chargalg_wd && !delayed_work_pending(&di->chargalg_wd_work)) - queue_delayed_work(di->chargalg_wq, &di->chargalg_wd_work, 0); } /** @@ -725,6 +836,9 @@ static void abx500_chargalg_end_of_charge(struct abx500_chargalg *di) di->batt_data.avg_curr > 0) { if (++di->eoc_cnt >= EOC_COND_CNT) { di->eoc_cnt = 0; + if ((di->chg_info.charger_type & USB_CHG) && + (di->usb_chg->power_path)) + ab8540_chargalg_usb_pp_en(di, true); di->charge_status = POWER_SUPPLY_STATUS_FULL; di->maintenance_chg = true; dev_dbg(di->dev, "EOC reached!\n"); @@ -1217,6 +1331,8 @@ static void abx500_chargalg_external_power_changed(struct power_supply *psy) static void abx500_chargalg_algorithm(struct abx500_chargalg *di) { int charger_status; + int ret; + int curr_step_lvl; /* Collect data from all power_supply class devices */ class_for_each_device(power_supply_class, NULL, @@ -1227,6 +1343,15 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di) abx500_chargalg_check_charger_voltage(di); charger_status = abx500_chargalg_check_charger_connection(di); + abx500_chargalg_check_current_step_status(di); + + if (is_ab8500(di->parent)) { + ret = abx500_chargalg_check_charger_enable(di); + if (ret < 0) + dev_err(di->dev, "Checking charger is enabled error" + ": Returned Value %d\n", ret); + } + /* * First check if we have a charger connected. * Also we don't allow charging of unknown batteries if configured @@ -1416,9 +1541,34 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di) break; case STATE_NORMAL_INIT: - abx500_chargalg_start_charging(di, - di->bm->bat_type[di->bm->batt_id].normal_vol_lvl, - di->bm->bat_type[di->bm->batt_id].normal_cur_lvl); + if ((di->chg_info.charger_type & USB_CHG) && + di->usb_chg->power_path) { + if (di->batt_data.volt > + (di->bm->fg_params->lowbat_threshold + + BAT_PLUS_MARGIN)) { + ab8540_chargalg_usb_pre_chg_en(di, false); + ab8540_chargalg_usb_pp_en(di, false); + } else { + ab8540_chargalg_usb_pp_en(di, true); + ab8540_chargalg_usb_pre_chg_en(di, true); + abx500_chargalg_state_to(di, + STATE_USB_PP_PRE_CHARGE); + break; + } + } + + if (di->curr_status.curr_step == CHARGALG_CURR_STEP_LOW) + abx500_chargalg_stop_charging(di); + else { + curr_step_lvl = di->bm->bat_type[ + di->bm->batt_id].normal_cur_lvl + * di->curr_status.curr_step + / CHARGALG_CURR_STEP_HIGH; + abx500_chargalg_start_charging(di, + di->bm->bat_type[di->bm->batt_id] + .normal_vol_lvl, curr_step_lvl); + } + abx500_chargalg_state_to(di, STATE_NORMAL); abx500_chargalg_start_safety_timer(di); abx500_chargalg_stop_maintenance_timer(di); @@ -1430,6 +1580,13 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di) break; + case STATE_USB_PP_PRE_CHARGE: + if (di->batt_data.volt > + (di->bm->fg_params->lowbat_threshold + + BAT_PLUS_MARGIN)) + abx500_chargalg_state_to(di, STATE_NORMAL_INIT); + break; + case STATE_NORMAL: handle_maxim_chg_curr(di); if (di->charge_status == POWER_SUPPLY_STATUS_FULL && @@ -1653,99 +1810,134 @@ static int abx500_chargalg_get_property(struct power_supply *psy, /* Exposure to the sysfs interface */ -/** - * abx500_chargalg_sysfs_show() - sysfs show operations - * @kobj: pointer to the struct kobject - * @attr: pointer to the struct attribute - * @buf: buffer that holds the parameter to send to userspace - * - * Returns a buffer to be displayed in user space - */ -static ssize_t abx500_chargalg_sysfs_show(struct kobject *kobj, - struct attribute *attr, char *buf) +static ssize_t abx500_chargalg_curr_step_show(struct abx500_chargalg *di, + char *buf) { - struct abx500_chargalg *di = container_of(kobj, - struct abx500_chargalg, chargalg_kobject); + return sprintf(buf, "%d\n", di->curr_status.curr_step); +} + +static ssize_t abx500_chargalg_curr_step_store(struct abx500_chargalg *di, + const char *buf, size_t length) +{ + long int param; + int ret; + + ret = kstrtol(buf, 10, ¶m); + if (ret < 0) + return ret; + + di->curr_status.curr_step = param; + if (di->curr_status.curr_step >= CHARGALG_CURR_STEP_LOW && + di->curr_status.curr_step <= CHARGALG_CURR_STEP_HIGH) { + di->curr_status.curr_step_change = true; + queue_work(di->chargalg_wq, &di->chargalg_work); + } else + dev_info(di->dev, "Wrong current step\n" + "Enter 0. Disable AC/USB Charging\n" + "1--100. Set AC/USB charging current step\n" + "100. Enable AC/USB Charging\n"); + + return strlen(buf); +} + +static ssize_t abx500_chargalg_en_show(struct abx500_chargalg *di, + char *buf) +{ return sprintf(buf, "%d\n", di->susp_status.ac_suspended && di->susp_status.usb_suspended); } -/** - * abx500_chargalg_sysfs_charger() - sysfs store operations - * @kobj: pointer to the struct kobject - * @attr: pointer to the struct attribute - * @buf: buffer that holds the parameter passed from userspace - * @length: length of the parameter passed - * - * Returns length of the buffer(input taken from user space) on success - * else error code on failure - * The operation to be performed on passing the parameters from the user space. - */ -static ssize_t abx500_chargalg_sysfs_charger(struct kobject *kobj, - struct attribute *attr, const char *buf, size_t length) +static ssize_t abx500_chargalg_en_store(struct abx500_chargalg *di, + const char *buf, size_t length) { - struct abx500_chargalg *di = container_of(kobj, - struct abx500_chargalg, chargalg_kobject); long int param; int ac_usb; int ret; - char entry = *attr->name; - switch (entry) { - case 'c': - ret = strict_strtol(buf, 10, ¶m); - if (ret < 0) - return ret; - - ac_usb = param; - switch (ac_usb) { - case 0: - /* Disable charging */ - di->susp_status.ac_suspended = true; - di->susp_status.usb_suspended = true; - di->susp_status.suspended_change = true; - /* Trigger a state change */ - queue_work(di->chargalg_wq, - &di->chargalg_work); - break; - case 1: - /* Enable AC Charging */ - di->susp_status.ac_suspended = false; - di->susp_status.suspended_change = true; - /* Trigger a state change */ - queue_work(di->chargalg_wq, - &di->chargalg_work); - break; - case 2: - /* Enable USB charging */ - di->susp_status.usb_suspended = false; - di->susp_status.suspended_change = true; - /* Trigger a state change */ - queue_work(di->chargalg_wq, - &di->chargalg_work); - break; - default: - dev_info(di->dev, "Wrong input\n" - "Enter 0. Disable AC/USB Charging\n" - "1. Enable AC charging\n" - "2. Enable USB Charging\n"); - }; + ret = kstrtol(buf, 10, ¶m); + if (ret < 0) + return ret; + + ac_usb = param; + switch (ac_usb) { + case 0: + /* Disable charging */ + di->susp_status.ac_suspended = true; + di->susp_status.usb_suspended = true; + di->susp_status.suspended_change = true; + /* Trigger a state change */ + queue_work(di->chargalg_wq, + &di->chargalg_work); + break; + case 1: + /* Enable AC Charging */ + di->susp_status.ac_suspended = false; + di->susp_status.suspended_change = true; + /* Trigger a state change */ + queue_work(di->chargalg_wq, + &di->chargalg_work); + break; + case 2: + /* Enable USB charging */ + di->susp_status.usb_suspended = false; + di->susp_status.suspended_change = true; + /* Trigger a state change */ + queue_work(di->chargalg_wq, + &di->chargalg_work); break; + default: + dev_info(di->dev, "Wrong input\n" + "Enter 0. Disable AC/USB Charging\n" + "1. Enable AC charging\n" + "2. Enable USB Charging\n"); }; return strlen(buf); } -static struct attribute abx500_chargalg_en_charger = \ +static struct abx500_chargalg_sysfs_entry abx500_chargalg_en_charger = + __ATTR(chargalg, 0644, abx500_chargalg_en_show, + abx500_chargalg_en_store); + +static struct abx500_chargalg_sysfs_entry abx500_chargalg_curr_step = + __ATTR(chargalg_curr_step, 0644, abx500_chargalg_curr_step_show, + abx500_chargalg_curr_step_store); + +static ssize_t abx500_chargalg_sysfs_show(struct kobject *kobj, + struct attribute *attr, char *buf) { - .name = "chargalg", - .mode = S_IRUGO | S_IWUSR, -}; + struct abx500_chargalg_sysfs_entry *entry = container_of(attr, + struct abx500_chargalg_sysfs_entry, attr); + + struct abx500_chargalg *di = container_of(kobj, + struct abx500_chargalg, chargalg_kobject); + + if (!entry->show) + return -EIO; + + return entry->show(di, buf); +} + +static ssize_t abx500_chargalg_sysfs_charger(struct kobject *kobj, + struct attribute *attr, const char *buf, size_t length) +{ + struct abx500_chargalg_sysfs_entry *entry = container_of(attr, + struct abx500_chargalg_sysfs_entry, attr); + + struct abx500_chargalg *di = container_of(kobj, + struct abx500_chargalg, chargalg_kobject); + + if (!entry->store) + return -EIO; + + return entry->store(di, buf, length); +} static struct attribute *abx500_chargalg_chg[] = { - &abx500_chargalg_en_charger, - NULL + &abx500_chargalg_en_charger.attr, + &abx500_chargalg_curr_step.attr, + NULL, }; static const struct sysfs_ops abx500_chargalg_sysfs_ops = { @@ -1832,10 +2024,16 @@ static int abx500_chargalg_remove(struct platform_device *pdev) /* sysfs interface to enable/disbale charging from user space */ abx500_chargalg_sysfs_exit(di); + hrtimer_cancel(&di->safety_timer); + hrtimer_cancel(&di->maintenance_timer); + + cancel_delayed_work_sync(&di->chargalg_periodic_work); + cancel_delayed_work_sync(&di->chargalg_wd_work); + cancel_work_sync(&di->chargalg_work); + /* Delete the work queue */ destroy_workqueue(di->chargalg_wq); - flush_scheduled_work(); power_supply_unregister(&di->chargalg_psy); platform_set_drvdata(pdev, NULL); @@ -1873,8 +2071,9 @@ static int abx500_chargalg_probe(struct platform_device *pdev) } } - /* get device struct */ + /* get device struct and parent */ di->dev = &pdev->dev; + di->parent = dev_get_drvdata(pdev->dev.parent); /* chargalg supply */ di->chargalg_psy.name = "abx500_chargalg"; @@ -1888,15 +2087,13 @@ static int abx500_chargalg_probe(struct platform_device *pdev) abx500_chargalg_external_power_changed; /* Initilialize safety timer */ - init_timer(&di->safety_timer); + hrtimer_init(&di->safety_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); di->safety_timer.function = abx500_chargalg_safety_timer_expired; - di->safety_timer.data = (unsigned long) di; /* Initilialize maintenance timer */ - init_timer(&di->maintenance_timer); + hrtimer_init(&di->maintenance_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); di->maintenance_timer.function = abx500_chargalg_maintenance_timer_expired; - di->maintenance_timer.data = (unsigned long) di; /* Create a work queue for the chargalg */ di->chargalg_wq = @@ -1933,6 +2130,7 @@ static int abx500_chargalg_probe(struct platform_device *pdev) dev_err(di->dev, "failed to create sysfs entry\n"); goto free_psy; } + di->curr_status.curr_step = CHARGALG_CURR_STEP_HIGH; /* Run the charging algorithm */ queue_delayed_work(di->chargalg_wq, &di->chargalg_periodic_work, 0); @@ -1964,18 +2162,7 @@ static struct platform_driver abx500_chargalg_driver = { }, }; -static int __init abx500_chargalg_init(void) -{ - return platform_driver_register(&abx500_chargalg_driver); -} - -static void __exit abx500_chargalg_exit(void) -{ - platform_driver_unregister(&abx500_chargalg_driver); -} - -module_init(abx500_chargalg_init); -module_exit(abx500_chargalg_exit); +module_platform_driver(abx500_chargalg_driver); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Johan Palsson, Karl Komierowski"); diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c index 8acc3f8..fefc39f 100644 --- a/drivers/power/charger-manager.c +++ b/drivers/power/charger-manager.c @@ -1485,13 +1485,12 @@ static int charger_manager_probe(struct platform_device *pdev) /* Basic Values. Unspecified are Null or 0 */ cm->dev = &pdev->dev; - cm->desc = kzalloc(sizeof(struct charger_desc), GFP_KERNEL); + cm->desc = kmemdup(desc, sizeof(struct charger_desc), GFP_KERNEL); if (!cm->desc) { dev_err(&pdev->dev, "Cannot allocate memory.\n"); ret = -ENOMEM; goto err_alloc_desc; } - memcpy(cm->desc, desc, sizeof(struct charger_desc)); cm->last_temp_mC = INT_MIN; /* denotes "unmeasured, yet" */ /* diff --git a/drivers/power/da9030_battery.c b/drivers/power/da9030_battery.c index e8c5a39..ae6c418 100644 --- a/drivers/power/da9030_battery.c +++ b/drivers/power/da9030_battery.c @@ -505,7 +505,7 @@ static int da9030_battery_probe(struct platform_device *pdev) pdata->charge_millivolt > 4350) return -EINVAL; - charger = kzalloc(sizeof(*charger), GFP_KERNEL); + charger = devm_kzalloc(&pdev->dev, sizeof(*charger), GFP_KERNEL); if (charger == NULL) return -ENOMEM; @@ -557,8 +557,6 @@ err_notifier: cancel_delayed_work(&charger->work); err_charger_init: - kfree(charger); - return ret; } @@ -575,8 +573,6 @@ static int da9030_battery_remove(struct platform_device *dev) da9030_set_charge(charger, 0); power_supply_unregister(&charger->psy); - kfree(charger); - return 0; } diff --git a/drivers/power/da9052-battery.c b/drivers/power/da9052-battery.c index 08193fe..f8f4c0f 100644 --- a/drivers/power/da9052-battery.c +++ b/drivers/power/da9052-battery.c @@ -594,7 +594,8 @@ static s32 da9052_bat_probe(struct platform_device *pdev) int ret; int i; - bat = kzalloc(sizeof(struct da9052_battery), GFP_KERNEL); + bat = devm_kzalloc(&pdev->dev, sizeof(struct da9052_battery), + GFP_KERNEL); if (!bat) return -ENOMEM; @@ -635,7 +636,6 @@ err: while (--i >= 0) da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat); - kfree(bat); return ret; } static int da9052_bat_remove(struct platform_device *pdev) @@ -647,7 +647,6 @@ static int da9052_bat_remove(struct platform_device *pdev) da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat); power_supply_unregister(&bat->psy); - kfree(bat); return 0; } diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c index 704e652..85b4e6e 100644 --- a/drivers/power/ds2760_battery.c +++ b/drivers/power/ds2760_battery.c @@ -512,7 +512,7 @@ static int ds2760_battery_probe(struct platform_device *pdev) int retval = 0; struct ds2760_device_info *di; - di = kzalloc(sizeof(*di), GFP_KERNEL); + di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL); if (!di) { retval = -ENOMEM; goto di_alloc_failed; @@ -576,7 +576,6 @@ static int ds2760_battery_probe(struct platform_device *pdev) workqueue_failed: power_supply_unregister(&di->bat); batt_failed: - kfree(di); di_alloc_failed: success: return retval; @@ -590,7 +589,6 @@ static int ds2760_battery_remove(struct platform_device *pdev) cancel_delayed_work_sync(&di->set_charged_work); destroy_workqueue(di->monitor_wqueue); power_supply_unregister(&di->bat); - kfree(di); return 0; } diff --git a/drivers/power/ds2780_battery.c b/drivers/power/ds2780_battery.c index 8b6c453..9f418fa 100644 --- a/drivers/power/ds2780_battery.c +++ b/drivers/power/ds2780_battery.c @@ -760,7 +760,7 @@ static int ds2780_battery_probe(struct platform_device *pdev) int ret = 0; struct ds2780_device_info *dev_info; - dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL); + dev_info = devm_kzalloc(&pdev->dev, sizeof(*dev_info), GFP_KERNEL); if (!dev_info) { ret = -ENOMEM; goto fail; @@ -779,7 +779,7 @@ static int ds2780_battery_probe(struct platform_device *pdev) ret = power_supply_register(&pdev->dev, &dev_info->bat); if (ret) { dev_err(dev_info->dev, "failed to register battery\n"); - goto fail_free_info; + goto fail; } ret = sysfs_create_group(&dev_info->bat.dev->kobj, &ds2780_attr_group); @@ -813,8 +813,6 @@ fail_remove_group: sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2780_attr_group); fail_unregister: power_supply_unregister(&dev_info->bat); -fail_free_info: - kfree(dev_info); fail: return ret; } @@ -828,7 +826,6 @@ static int ds2780_battery_remove(struct platform_device *pdev) power_supply_unregister(&dev_info->bat); - kfree(dev_info); return 0; } diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c index c09e772..5631748 100644 --- a/drivers/power/ds2782_battery.c +++ b/drivers/power/ds2782_battery.c @@ -332,32 +332,32 @@ static int ds278x_battery_remove(struct i2c_client *client) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP -static int ds278x_suspend(struct i2c_client *client, - pm_message_t state) +static int ds278x_suspend(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); struct ds278x_info *info = i2c_get_clientdata(client); cancel_delayed_work(&info->bat_work); return 0; } -static int ds278x_resume(struct i2c_client *client) +static int ds278x_resume(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); struct ds278x_info *info = i2c_get_clientdata(client); schedule_delayed_work(&info->bat_work, DS278x_DELAY); return 0; } -#else - -#define ds278x_suspend NULL -#define ds278x_resume NULL - -#endif /* CONFIG_PM */ +static SIMPLE_DEV_PM_OPS(ds278x_battery_pm_ops, ds278x_suspend, ds278x_resume); +#define DS278X_BATTERY_PM_OPS (&ds278x_battery_pm_ops) +#else +#define DS278X_BATTERY_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ enum ds278x_num_id { DS2782 = 0, @@ -460,11 +460,10 @@ MODULE_DEVICE_TABLE(i2c, ds278x_id); static struct i2c_driver ds278x_battery_driver = { .driver = { .name = "ds2782-battery", + .pm = DS278X_BATTERY_PM_OPS, }, .probe = ds278x_battery_probe, .remove = ds278x_battery_remove, - .suspend = ds278x_suspend, - .resume = ds278x_resume, .id_table = ds278x_id, }; module_i2c_driver(ds278x_battery_driver); diff --git a/drivers/power/goldfish_battery.c b/drivers/power/goldfish_battery.c index c10f460..29eba88 100644 --- a/drivers/power/goldfish_battery.c +++ b/drivers/power/goldfish_battery.c @@ -178,7 +178,7 @@ static int goldfish_battery_probe(struct platform_device *pdev) return -ENODEV; } - data->reg_base = devm_ioremap(&pdev->dev, r->start, r->end - r->start + 1); + data->reg_base = devm_ioremap(&pdev->dev, r->start, resource_size(r)); if (data->reg_base == NULL) { dev_err(&pdev->dev, "unable to remap MMIO\n"); return -ENOMEM; diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c index e3e40a9..e9883ee 100644 --- a/drivers/power/gpio-charger.c +++ b/drivers/power/gpio-charger.c @@ -86,7 +86,8 @@ static int gpio_charger_probe(struct platform_device *pdev) return -EINVAL; } - gpio_charger = kzalloc(sizeof(*gpio_charger), GFP_KERNEL); + gpio_charger = devm_kzalloc(&pdev->dev, sizeof(*gpio_charger), + GFP_KERNEL); if (!gpio_charger) { dev_err(&pdev->dev, "Failed to alloc driver structure\n"); return -ENOMEM; @@ -140,7 +141,6 @@ static int gpio_charger_probe(struct platform_device *pdev) err_gpio_free: gpio_free(pdata->gpio); err_free: - kfree(gpio_charger); return ret; } @@ -156,7 +156,6 @@ static int gpio_charger_remove(struct platform_device *pdev) gpio_free(gpio_charger->pdata->gpio); platform_set_drvdata(pdev, NULL); - kfree(gpio_charger); return 0; } diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c index 176ad59..fc04d19 100644 --- a/drivers/power/isp1704_charger.c +++ b/drivers/power/isp1704_charger.c @@ -411,7 +411,7 @@ static int isp1704_charger_probe(struct platform_device *pdev) struct isp1704_charger *isp; int ret = -ENODEV; - isp = kzalloc(sizeof *isp, GFP_KERNEL); + isp = devm_kzalloc(&pdev->dev, sizeof(*isp), GFP_KERNEL); if (!isp) return -ENOMEM; @@ -477,8 +477,6 @@ fail1: isp1704_charger_set_power(isp, 0); usb_put_phy(isp->phy); fail0: - kfree(isp); - dev_err(&pdev->dev, "failed to register isp1704 with error %d\n", ret); return ret; @@ -492,7 +490,6 @@ static int isp1704_charger_remove(struct platform_device *pdev) power_supply_unregister(&isp->psy); usb_put_phy(isp->phy); isp1704_charger_set_power(isp, 0); - kfree(isp); return 0; } diff --git a/drivers/power/lp8788-charger.c b/drivers/power/lp8788-charger.c index 6d1f452..ed49b50 100644 --- a/drivers/power/lp8788-charger.c +++ b/drivers/power/lp8788-charger.c @@ -49,7 +49,6 @@ #define LP8788_CHG_START 0x11 #define LP8788_CHG_END 0x1C -#define LP8788_BUF_SIZE 40 #define LP8788_ISEL_MAX 23 #define LP8788_ISEL_STEP 50 #define LP8788_VTERM_MIN 4100 @@ -633,7 +632,7 @@ static ssize_t lp8788_show_charger_status(struct device *dev, lp8788_read_byte(pchg->lp, LP8788_CHG_STATUS, &data); state = (data & LP8788_CHG_STATE_M) >> LP8788_CHG_STATE_S; - return scnprintf(buf, LP8788_BUF_SIZE, "%s\n", desc[state]); + return scnprintf(buf, PAGE_SIZE, "%s\n", desc[state]); } static ssize_t lp8788_show_eoc_time(struct device *dev, @@ -647,7 +646,7 @@ static ssize_t lp8788_show_eoc_time(struct device *dev, lp8788_read_byte(pchg->lp, LP8788_CHG_EOC, &val); val = (val & LP8788_CHG_EOC_TIME_M) >> LP8788_CHG_EOC_TIME_S; - return scnprintf(buf, LP8788_BUF_SIZE, "End Of Charge Time: %s\n", + return scnprintf(buf, PAGE_SIZE, "End Of Charge Time: %s\n", stime[val]); } @@ -667,8 +666,7 @@ static ssize_t lp8788_show_eoc_level(struct device *dev, val = (val & LP8788_CHG_EOC_LEVEL_M) >> LP8788_CHG_EOC_LEVEL_S; level = mode ? abs_level[val] : relative_level[val]; - return scnprintf(buf, LP8788_BUF_SIZE, "End Of Charge Level: %s\n", - level); + return scnprintf(buf, PAGE_SIZE, "End Of Charge Level: %s\n", level); } static DEVICE_ATTR(charger_status, S_IRUSR, lp8788_show_charger_status, NULL); diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c index 74a0bd9..c7ff6d6 100644 --- a/drivers/power/max17040_battery.c +++ b/drivers/power/max17040_battery.c @@ -246,31 +246,34 @@ static int max17040_remove(struct i2c_client *client) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP -static int max17040_suspend(struct i2c_client *client, - pm_message_t state) +static int max17040_suspend(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); struct max17040_chip *chip = i2c_get_clientdata(client); cancel_delayed_work(&chip->work); return 0; } -static int max17040_resume(struct i2c_client *client) +static int max17040_resume(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); struct max17040_chip *chip = i2c_get_clientdata(client); schedule_delayed_work(&chip->work, MAX17040_DELAY); return 0; } +static SIMPLE_DEV_PM_OPS(max17040_pm_ops, max17040_suspend, max17040_resume); +#define MAX17040_PM_OPS (&max17040_pm_ops) + #else -#define max17040_suspend NULL -#define max17040_resume NULL +#define MAX17040_PM_OPS NULL -#endif /* CONFIG_PM */ +#endif /* CONFIG_PM_SLEEP */ static const struct i2c_device_id max17040_id[] = { { "max17040", 0 }, @@ -281,11 +284,10 @@ MODULE_DEVICE_TABLE(i2c, max17040_id); static struct i2c_driver max17040_i2c_driver = { .driver = { .name = "max17040", + .pm = MAX17040_PM_OPS, }, .probe = max17040_probe, .remove = max17040_remove, - .suspend = max17040_suspend, - .resume = max17040_resume, .id_table = max17040_id, }; module_i2c_driver(max17040_i2c_driver); diff --git a/drivers/power/max8903_charger.c b/drivers/power/max8903_charger.c index 14e2b96..08f0d79 100644 --- a/drivers/power/max8903_charger.c +++ b/drivers/power/max8903_charger.c @@ -189,7 +189,7 @@ static int max8903_probe(struct platform_device *pdev) int ta_in = 0; int usb_in = 0; - data = kzalloc(sizeof(struct max8903_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct max8903_data), GFP_KERNEL); if (data == NULL) { dev_err(dev, "Cannot allocate memory.\n"); return -ENOMEM; @@ -341,7 +341,6 @@ err_dc_irq: err_psy: power_supply_unregister(&data->psy); err: - kfree(data); return ret; } @@ -359,7 +358,6 @@ static int max8903_remove(struct platform_device *pdev) if (pdata->dc_valid) free_irq(gpio_to_irq(pdata->dok), data); power_supply_unregister(&data->psy); - kfree(data); } return 0; diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c index 665cdc7..0ee1e14 100644 --- a/drivers/power/max8925_power.c +++ b/drivers/power/max8925_power.c @@ -489,7 +489,8 @@ static int max8925_power_probe(struct platform_device *pdev) return -EINVAL; } - info = kzalloc(sizeof(struct max8925_power_info), GFP_KERNEL); + info = devm_kzalloc(&pdev->dev, sizeof(struct max8925_power_info), + GFP_KERNEL); if (!info) return -ENOMEM; info->chip = chip; @@ -546,7 +547,6 @@ out_battery: out_usb: power_supply_unregister(&info->ac); out: - kfree(info); return ret; } @@ -559,7 +559,6 @@ static int max8925_power_remove(struct platform_device *pdev) power_supply_unregister(&info->usb); power_supply_unregister(&info->battery); max8925_deinit_charger(info); - kfree(info); } return 0; } diff --git a/drivers/power/max8997_charger.c b/drivers/power/max8997_charger.c index e757885..4bdedfe 100644 --- a/drivers/power/max8997_charger.c +++ b/drivers/power/max8997_charger.c @@ -138,7 +138,8 @@ static int max8997_battery_probe(struct platform_device *pdev) return ret; } - charger = kzalloc(sizeof(struct charger_data), GFP_KERNEL); + charger = devm_kzalloc(&pdev->dev, sizeof(struct charger_data), + GFP_KERNEL); if (charger == NULL) { dev_err(&pdev->dev, "Cannot allocate memory.\n"); return -ENOMEM; @@ -158,13 +159,10 @@ static int max8997_battery_probe(struct platform_device *pdev) ret = power_supply_register(&pdev->dev, &charger->battery); if (ret) { dev_err(&pdev->dev, "failed: power supply register\n"); - goto err; + return ret; } return 0; -err: - kfree(charger); - return ret; } static int max8997_battery_remove(struct platform_device *pdev) @@ -172,7 +170,6 @@ static int max8997_battery_remove(struct platform_device *pdev) struct charger_data *charger = platform_get_drvdata(pdev); power_supply_unregister(&charger->battery); - kfree(charger); return 0; } diff --git a/drivers/power/max8998_charger.c b/drivers/power/max8998_charger.c index bf677e3..5017470 100644 --- a/drivers/power/max8998_charger.c +++ b/drivers/power/max8998_charger.c @@ -88,7 +88,8 @@ static int max8998_battery_probe(struct platform_device *pdev) return -ENODEV; } - max8998 = kzalloc(sizeof(struct max8998_battery_data), GFP_KERNEL); + max8998 = devm_kzalloc(&pdev->dev, sizeof(struct max8998_battery_data), + GFP_KERNEL); if (!max8998) return -ENOMEM; @@ -174,7 +175,6 @@ static int max8998_battery_probe(struct platform_device *pdev) return 0; err: - kfree(max8998); return ret; } @@ -183,7 +183,6 @@ static int max8998_battery_remove(struct platform_device *pdev) struct max8998_battery_data *max8998 = platform_get_drvdata(pdev); power_supply_unregister(&max8998->battery); - kfree(max8998); return 0; } diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c index c2122a7..17fd77f 100644 --- a/drivers/power/pcf50633-charger.c +++ b/drivers/power/pcf50633-charger.c @@ -373,7 +373,7 @@ static int pcf50633_mbc_probe(struct platform_device *pdev) int i; u8 mbcs1; - mbc = kzalloc(sizeof(*mbc), GFP_KERNEL); + mbc = devm_kzalloc(&pdev->dev, sizeof(*mbc), GFP_KERNEL); if (!mbc) return -ENOMEM; @@ -413,7 +413,6 @@ static int pcf50633_mbc_probe(struct platform_device *pdev) ret = power_supply_register(&pdev->dev, &mbc->adapter); if (ret) { dev_err(mbc->pcf->dev, "failed to register adapter\n"); - kfree(mbc); return ret; } @@ -421,7 +420,6 @@ static int pcf50633_mbc_probe(struct platform_device *pdev) if (ret) { dev_err(mbc->pcf->dev, "failed to register usb\n"); power_supply_unregister(&mbc->adapter); - kfree(mbc); return ret; } @@ -430,7 +428,6 @@ static int pcf50633_mbc_probe(struct platform_device *pdev) dev_err(mbc->pcf->dev, "failed to register ac\n"); power_supply_unregister(&mbc->adapter); power_supply_unregister(&mbc->usb); - kfree(mbc); return ret; } @@ -461,8 +458,6 @@ static int pcf50633_mbc_remove(struct platform_device *pdev) power_supply_unregister(&mbc->adapter); power_supply_unregister(&mbc->ac); - kfree(mbc); - return 0; } diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c index ee346d4..a441751 100644 --- a/drivers/power/pm2301_charger.c +++ b/drivers/power/pm2301_charger.c @@ -16,24 +16,25 @@ #include #include #include -#include #include #include #include #include -#include -#include #include #include -#include #include #include #include +#include +#include #include "pm2301_charger.h" #define to_pm2xxx_charger_ac_device_info(x) container_of((x), \ struct pm2xxx_charger, ac_chg) +#define SLEEP_MIN 50 +#define SLEEP_MAX 100 +#define PM2XXX_AUTOSUSPEND_DELAY 500 static int pm2xxx_interrupt_registers[] = { PM2XXX_REG_INT1, @@ -113,33 +114,24 @@ static const struct i2c_device_id pm2xxx_ident[] = { static void set_lpn_pin(struct pm2xxx_charger *pm2) { - if (pm2->ac.charger_connected) - return; - gpio_set_value(pm2->lpn_pin, 1); - - return; + if (!pm2->ac.charger_connected && gpio_is_valid(pm2->lpn_pin)) { + gpio_set_value(pm2->lpn_pin, 1); + usleep_range(SLEEP_MIN, SLEEP_MAX); + } } static void clear_lpn_pin(struct pm2xxx_charger *pm2) { - if (pm2->ac.charger_connected) - return; - gpio_set_value(pm2->lpn_pin, 0); - - return; + if (!pm2->ac.charger_connected && gpio_is_valid(pm2->lpn_pin)) + gpio_set_value(pm2->lpn_pin, 0); } static int pm2xxx_reg_read(struct pm2xxx_charger *pm2, int reg, u8 *val) { int ret; - /* - * When AC adaptor is unplugged, the host - * must put LPN high to be able to - * communicate by I2C with PM2301 - * and receive I2C "acknowledge" from PM2301. - */ - mutex_lock(&pm2->lock); - set_lpn_pin(pm2); + + /* wake up the device */ + pm_runtime_get_sync(pm2->dev); ret = i2c_smbus_read_i2c_block_data(pm2->config.pm2xxx_i2c, reg, 1, val); @@ -147,8 +139,8 @@ static int pm2xxx_reg_read(struct pm2xxx_charger *pm2, int reg, u8 *val) dev_err(pm2->dev, "Error reading register at 0x%x\n", reg); else ret = 0; - clear_lpn_pin(pm2); - mutex_unlock(&pm2->lock); + + pm_runtime_put_sync(pm2->dev); return ret; } @@ -156,14 +148,9 @@ static int pm2xxx_reg_read(struct pm2xxx_charger *pm2, int reg, u8 *val) static int pm2xxx_reg_write(struct pm2xxx_charger *pm2, int reg, u8 val) { int ret; - /* - * When AC adaptor is unplugged, the host - * must put LPN high to be able to - * communicate by I2C with PM2301 - * and receive I2C "acknowledge" from PM2301. - */ - mutex_lock(&pm2->lock); - set_lpn_pin(pm2); + + /* wake up the device */ + pm_runtime_get_sync(pm2->dev); ret = i2c_smbus_write_i2c_block_data(pm2->config.pm2xxx_i2c, reg, 1, &val); @@ -171,8 +158,8 @@ static int pm2xxx_reg_write(struct pm2xxx_charger *pm2, int reg, u8 val) dev_err(pm2->dev, "Error writing register at 0x%x\n", reg); else ret = 0; - clear_lpn_pin(pm2); - mutex_unlock(&pm2->lock); + + pm_runtime_put_sync(pm2->dev); return ret; } @@ -192,11 +179,22 @@ static int pm2xxx_charging_disable_mngt(struct pm2xxx_charger *pm2) { int ret; + /* Disable SW EOC ctrl */ + ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG, PM2XXX_SWCTRL_HW); + if (ret < 0) { + dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__); + return ret; + } + /* Disable charging */ ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG2, (PM2XXX_CH_AUTO_RESUME_DIS | PM2XXX_CHARGER_DIS)); + if (ret < 0) { + dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__); + return ret; + } - return ret; + return 0; } static int pm2xxx_charger_batt_therm_mngt(struct pm2xxx_charger *pm2, int val) @@ -216,21 +214,14 @@ int pm2xxx_charger_die_therm_mngt(struct pm2xxx_charger *pm2, int val) static int pm2xxx_charger_ovv_mngt(struct pm2xxx_charger *pm2, int val) { - int ret = 0; + dev_err(pm2->dev, "Overvoltage detected\n"); + pm2->flags.ovv = true; + power_supply_changed(&pm2->ac_chg.psy); - pm2->failure_input_ovv++; - if (pm2->failure_input_ovv < 4) { - ret = pm2xxx_charging_enable_mngt(pm2); - goto out; - } else { - pm2->failure_input_ovv = 0; - dev_err(pm2->dev, "Overvoltage detected\n"); - pm2->flags.ovv = true; - power_supply_changed(&pm2->ac_chg.psy); - } + /* Schedule a new HW failure check */ + queue_delayed_work(pm2->charger_wq, &pm2->check_hw_failure_work, 0); -out: - return ret; + return 0; } static int pm2xxx_charger_wd_exp_mngt(struct pm2xxx_charger *pm2, int val) @@ -245,13 +236,29 @@ static int pm2xxx_charger_wd_exp_mngt(struct pm2xxx_charger *pm2, int val) static int pm2xxx_charger_vbat_lsig_mngt(struct pm2xxx_charger *pm2, int val) { + int ret; + switch (val) { case PM2XXX_INT1_ITVBATLOWR: dev_dbg(pm2->dev, "VBAT grows above VBAT_LOW level\n"); + /* Enable SW EOC ctrl */ + ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG, + PM2XXX_SWCTRL_SW); + if (ret < 0) { + dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__); + return ret; + } break; case PM2XXX_INT1_ITVBATLOWF: dev_dbg(pm2->dev, "VBAT drops below VBAT_LOW level\n"); + /* Disable SW EOC ctrl */ + ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG, + PM2XXX_SWCTRL_HW); + if (ret < 0) { + dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__); + return ret; + } break; default: @@ -322,16 +329,27 @@ static int pm2_int_reg0(void *pm2_data, int val) struct pm2xxx_charger *pm2 = pm2_data; int ret = 0; - if (val & (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)) { - ret = pm2xxx_charger_vbat_lsig_mngt(pm2, val & - (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)); + if (val & PM2XXX_INT1_ITVBATLOWR) { + ret = pm2xxx_charger_vbat_lsig_mngt(pm2, + PM2XXX_INT1_ITVBATLOWR); + if (ret < 0) + goto out; + } + + if (val & PM2XXX_INT1_ITVBATLOWF) { + ret = pm2xxx_charger_vbat_lsig_mngt(pm2, + PM2XXX_INT1_ITVBATLOWF); + if (ret < 0) + goto out; } if (val & PM2XXX_INT1_ITVBATDISCONNECT) { ret = pm2xxx_charger_bat_disc_mngt(pm2, PM2XXX_INT1_ITVBATDISCONNECT); + if (ret < 0) + goto out; } - +out: return ret; } @@ -447,7 +465,6 @@ static int pm2_int_reg5(void *pm2_data, int val) struct pm2xxx_charger *pm2 = pm2_data; int ret = 0; - if (val & (PM2XXX_INT6_ITVPWR2DROP | PM2XXX_INT6_ITVPWR1DROP)) { dev_dbg(pm2->dev, "VMPWR drop to VBAT level\n"); } @@ -468,14 +485,22 @@ static irqreturn_t pm2xxx_irq_int(int irq, void *data) struct pm2xxx_interrupts *interrupt = pm2->pm2_int; int i; - for (i = 0; i < PM2XXX_NUM_INT_REG; i++) { - pm2xxx_reg_read(pm2, + /* wake up the device */ + pm_runtime_get_sync(pm2->dev); + + do { + for (i = 0; i < PM2XXX_NUM_INT_REG; i++) { + pm2xxx_reg_read(pm2, pm2xxx_interrupt_registers[i], &(interrupt->reg[i])); - if (interrupt->reg[i] > 0) - interrupt->handler[i](pm2, interrupt->reg[i]); - } + if (interrupt->reg[i] > 0) + interrupt->handler[i](pm2, interrupt->reg[i]); + } + } while (gpio_get_value(pm2->pdata->gpio_irq_number) == 0); + + pm_runtime_mark_last_busy(pm2->dev); + pm_runtime_put_autosuspend(pm2->dev); return IRQ_HANDLED; } @@ -592,6 +617,8 @@ static int pm2xxx_charger_ac_get_property(struct power_supply *psy, val->intval = POWER_SUPPLY_HEALTH_DEAD; else if (pm2->flags.main_thermal_prot) val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; + else if (pm2->flags.ovv) + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; else val->intval = POWER_SUPPLY_HEALTH_GOOD; break; @@ -674,10 +701,6 @@ static int pm2xxx_charging_init(struct pm2xxx_charger *pm2) ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_LOW_LEV_COMP_REG, PM2XXX_VBAT_LOW_MONITORING_ENA); - /* Disable LED */ - ret = pm2xxx_reg_write(pm2, PM2XXX_LED_CTRL_REG, - PM2XXX_LED_SELECT_DIS); - return ret; } @@ -822,10 +845,54 @@ static void pm2xxx_charger_ac_work(struct work_struct *work) sysfs_notify(&pm2->ac_chg.psy.dev->kobj, NULL, "present"); }; +static void pm2xxx_charger_check_hw_failure_work(struct work_struct *work) +{ + u8 reg_value; + + struct pm2xxx_charger *pm2 = container_of(work, + struct pm2xxx_charger, check_hw_failure_work.work); + + if (pm2->flags.ovv) { + pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT4, ®_value); + + if (!(reg_value & (PM2XXX_INT4_S_ITVPWR1OVV | + PM2XXX_INT4_S_ITVPWR2OVV))) { + pm2->flags.ovv = false; + power_supply_changed(&pm2->ac_chg.psy); + } + } + + /* If we still have a failure, schedule a new check */ + if (pm2->flags.ovv) { + queue_delayed_work(pm2->charger_wq, + &pm2->check_hw_failure_work, round_jiffies(HZ)); + } +} + static void pm2xxx_charger_check_main_thermal_prot_work( struct work_struct *work) { -}; + int ret; + u8 val; + + struct pm2xxx_charger *pm2 = container_of(work, struct pm2xxx_charger, + check_main_thermal_prot_work); + + /* Check if die temp warning is still active */ + ret = pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT5, &val); + if (ret < 0) { + dev_err(pm2->dev, "%s pm2xxx read failed\n", __func__); + return; + } + if (val & (PM2XXX_INT5_S_ITTHERMALWARNINGRISE + | PM2XXX_INT5_S_ITTHERMALSHUTDOWNRISE)) + pm2->flags.main_thermal_prot = true; + else if (val & (PM2XXX_INT5_S_ITTHERMALWARNINGFALL + | PM2XXX_INT5_S_ITTHERMALSHUTDOWNFALL)) + pm2->flags.main_thermal_prot = false; + + power_supply_changed(&pm2->ac_chg.psy); +} static struct pm2xxx_interrupts pm2xxx_int = { .handler[0] = pm2_int_reg0, @@ -840,24 +907,105 @@ static struct pm2xxx_irq pm2xxx_charger_irq[] = { {"PM2XXX_IRQ_INT", pm2xxx_irq_int}, }; -static int pm2xxx_wall_charger_resume(struct i2c_client *i2c_client) +#ifdef CONFIG_PM + +#ifdef CONFIG_PM_SLEEP + +static int pm2xxx_wall_charger_resume(struct device *dev) { + struct i2c_client *i2c_client = to_i2c_client(dev); + struct pm2xxx_charger *pm2; + + pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(i2c_client); + set_lpn_pin(pm2); + + /* If we still have a HW failure, schedule a new check */ + if (pm2->flags.ovv) + queue_delayed_work(pm2->charger_wq, + &pm2->check_hw_failure_work, 0); + return 0; } -static int pm2xxx_wall_charger_suspend(struct i2c_client *i2c_client, - pm_message_t state) +static int pm2xxx_wall_charger_suspend(struct device *dev) { + struct i2c_client *i2c_client = to_i2c_client(dev); + struct pm2xxx_charger *pm2; + + pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(i2c_client); + clear_lpn_pin(pm2); + + /* Cancel any pending HW failure check */ + if (delayed_work_pending(&pm2->check_hw_failure_work)) + cancel_delayed_work(&pm2->check_hw_failure_work); + + flush_work(&pm2->ac_work); + flush_work(&pm2->check_main_thermal_prot_work); + return 0; } -static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, +#endif + +#ifdef CONFIG_PM_RUNTIME + +static int pm2xxx_runtime_suspend(struct device *dev) +{ + struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev); + struct pm2xxx_charger *pm2; + int ret = 0; + + pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client); + if (!pm2) { + dev_err(pm2->dev, "no pm2xxx_charger data supplied\n"); + ret = -EINVAL; + return ret; + } + + clear_lpn_pin(pm2); + + return ret; +} + +static int pm2xxx_runtime_resume(struct device *dev) +{ + struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev); + struct pm2xxx_charger *pm2; + int ret = 0; + + pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client); + if (!pm2) { + dev_err(pm2->dev, "no pm2xxx_charger data supplied\n"); + ret = -EINVAL; + return ret; + } + + if (gpio_is_valid(pm2->lpn_pin) && gpio_get_value(pm2->lpn_pin) == 0) + set_lpn_pin(pm2); + + return ret; +} + +#endif + +static const struct dev_pm_ops pm2xxx_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm2xxx_wall_charger_suspend, + pm2xxx_wall_charger_resume) + SET_RUNTIME_PM_OPS(pm2xxx_runtime_suspend, pm2xxx_runtime_resume, NULL) +}; +#define PM2XXX_PM_OPS (&pm2xxx_pm_ops) +#else +#define PM2XXX_PM_OPS NULL +#endif + +static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, const struct i2c_device_id *id) { struct pm2xxx_platform_data *pl_data = i2c_client->dev.platform_data; struct pm2xxx_charger *pm2; int ret = 0; u8 val; + int i; pm2 = kzalloc(sizeof(struct pm2xxx_charger), GFP_KERNEL); if (!pm2) { @@ -867,7 +1015,6 @@ static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, /* get parent data */ pm2->dev = &i2c_client->dev; - pm2->gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); pm2->pm2_int = &pm2xxx_int; @@ -889,14 +1036,6 @@ static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, pm2->bat = pl_data->battery; - /*get lpn GPIO from platform data*/ - if (!pm2->pdata->lpn_gpio) { - dev_err(pm2->dev, "no lpn gpio data supplied\n"); - ret = -EINVAL; - goto free_device_info; - } - pm2->lpn_pin = pm2->pdata->lpn_gpio; - if (!i2c_check_functionality(i2c_client->adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_READ_WORD_DATA)) { @@ -945,6 +1084,10 @@ static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, INIT_WORK(&pm2->check_main_thermal_prot_work, pm2xxx_charger_check_main_thermal_prot_work); + /* Init work for HW failure check */ + INIT_DEFERRABLE_WORK(&pm2->check_hw_failure_work, + pm2xxx_charger_check_hw_failure_work); + /* * VDD ADC supply needs to be enabled from this driver when there * is a charger connected to avoid erroneous BTEMP_HIGH/LOW @@ -965,40 +1108,72 @@ static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, } /* Register interrupts */ - ret = request_threaded_irq(pm2->pdata->irq_number, NULL, + ret = request_threaded_irq(gpio_to_irq(pm2->pdata->gpio_irq_number), + NULL, pm2xxx_charger_irq[0].isr, pm2->pdata->irq_type, pm2xxx_charger_irq[0].name, pm2); if (ret != 0) { dev_err(pm2->dev, "failed to request %s IRQ %d: %d\n", - pm2xxx_charger_irq[0].name, pm2->pdata->irq_number, ret); + pm2xxx_charger_irq[0].name, + gpio_to_irq(pm2->pdata->gpio_irq_number), ret); goto unregister_pm2xxx_charger; } - /*Initialize lock*/ - mutex_init(&pm2->lock); + ret = pm_runtime_set_active(pm2->dev); + if (ret) + dev_err(pm2->dev, "set active Error\n"); - /* - * Charger detection mechanism requires pulling up the LPN pin - * while i2c communication if Charger is not connected - * LPN pin of PM2301 is GPIO60 of AB9540 - */ - ret = gpio_request(pm2->lpn_pin, "pm2301_lpm_gpio"); - if (ret < 0) { - dev_err(pm2->dev, "pm2301_lpm_gpio request failed\n"); - goto unregister_pm2xxx_charger; + pm_runtime_enable(pm2->dev); + pm_runtime_set_autosuspend_delay(pm2->dev, PM2XXX_AUTOSUSPEND_DELAY); + pm_runtime_use_autosuspend(pm2->dev); + pm_runtime_resume(pm2->dev); + + /* pm interrupt can wake up system */ + ret = enable_irq_wake(gpio_to_irq(pm2->pdata->gpio_irq_number)); + if (ret) { + dev_err(pm2->dev, "failed to set irq wake\n"); + goto unregister_pm2xxx_interrupt; } - ret = gpio_direction_output(pm2->lpn_pin, 0); - if (ret < 0) { - dev_err(pm2->dev, "pm2301_lpm_gpio direction failed\n"); - goto free_gpio; + + mutex_init(&pm2->lock); + + if (gpio_is_valid(pm2->pdata->lpn_gpio)) { + /* get lpn GPIO from platform data */ + pm2->lpn_pin = pm2->pdata->lpn_gpio; + + /* + * Charger detection mechanism requires pulling up the LPN pin + * while i2c communication if Charger is not connected + * LPN pin of PM2301 is GPIO60 of AB9540 + */ + ret = gpio_request(pm2->lpn_pin, "pm2301_lpm_gpio"); + + if (ret < 0) { + dev_err(pm2->dev, "pm2301_lpm_gpio request failed\n"); + goto disable_pm2_irq_wake; + } + ret = gpio_direction_output(pm2->lpn_pin, 0); + if (ret < 0) { + dev_err(pm2->dev, "pm2301_lpm_gpio direction failed\n"); + goto free_gpio; + } + set_lpn_pin(pm2); } + /* read interrupt registers */ + for (i = 0; i < PM2XXX_NUM_INT_REG; i++) + pm2xxx_reg_read(pm2, + pm2xxx_interrupt_registers[i], + &val); + ret = pm2xxx_charger_detection(pm2, &val); if ((ret == 0) && val) { pm2->ac.charger_connected = 1; + ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON, + AB8500_MAIN_CH_DET); pm2->ac_conn = true; power_supply_changed(&pm2->ac_chg.psy); sysfs_notify(&pm2->ac_chg.psy.dev->kobj, NULL, "present"); @@ -1007,7 +1182,13 @@ static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, return 0; free_gpio: - gpio_free(pm2->lpn_pin); + if (gpio_is_valid(pm2->lpn_pin)) + gpio_free(pm2->lpn_pin); +disable_pm2_irq_wake: + disable_irq_wake(gpio_to_irq(pm2->pdata->gpio_irq_number)); +unregister_pm2xxx_interrupt: + /* disable interrupt */ + free_irq(gpio_to_irq(pm2->pdata->gpio_irq_number), pm2); unregister_pm2xxx_charger: /* unregister power supply */ power_supply_unregister(&pm2->ac_chg.psy); @@ -1018,18 +1199,24 @@ free_charger_wq: destroy_workqueue(pm2->charger_wq); free_device_info: kfree(pm2); + return ret; } -static int __devexit pm2xxx_wall_charger_remove(struct i2c_client *i2c_client) +static int pm2xxx_wall_charger_remove(struct i2c_client *i2c_client) { struct pm2xxx_charger *pm2 = i2c_get_clientdata(i2c_client); + /* Disable pm_runtime */ + pm_runtime_disable(pm2->dev); /* Disable AC charging */ pm2xxx_charger_ac_en(&pm2->ac_chg, false, 0, 0); + /* Disable wake by pm interrupt */ + disable_irq_wake(gpio_to_irq(pm2->pdata->gpio_irq_number)); + /* Disable interrupts */ - free_irq(pm2->pdata->irq_number, pm2); + free_irq(gpio_to_irq(pm2->pdata->gpio_irq_number), pm2); /* Delete the work queue */ destroy_workqueue(pm2->charger_wq); @@ -1041,8 +1228,8 @@ static int __devexit pm2xxx_wall_charger_remove(struct i2c_client *i2c_client) power_supply_unregister(&pm2->ac_chg.psy); - /*Free GPIO60*/ - gpio_free(pm2->lpn_pin); + if (gpio_is_valid(pm2->lpn_pin)) + gpio_free(pm2->lpn_pin); kfree(pm2); @@ -1058,12 +1245,11 @@ MODULE_DEVICE_TABLE(i2c, pm2xxx_id); static struct i2c_driver pm2xxx_charger_driver = { .probe = pm2xxx_wall_charger_probe, - .remove = __devexit_p(pm2xxx_wall_charger_remove), - .suspend = pm2xxx_wall_charger_suspend, - .resume = pm2xxx_wall_charger_resume, + .remove = pm2xxx_wall_charger_remove, .driver = { .name = "pm2xxx-wall_charger", .owner = THIS_MODULE, + .pm = PM2XXX_PM_OPS, }, .id_table = pm2xxx_id, }; @@ -1078,11 +1264,10 @@ static void __exit pm2xxx_charger_exit(void) i2c_del_driver(&pm2xxx_charger_driver); } -subsys_initcall_sync(pm2xxx_charger_init); +device_initcall_sync(pm2xxx_charger_init); module_exit(pm2xxx_charger_exit); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Rajkumar kasirajan, Olivier Launay"); MODULE_ALIAS("platform:pm2xxx-charger"); MODULE_DESCRIPTION("PM2xxx charger management driver"); - diff --git a/drivers/power/pm2301_charger.h b/drivers/power/pm2301_charger.h index e6319cd..8ce3cc0 100644 --- a/drivers/power/pm2301_charger.h +++ b/drivers/power/pm2301_charger.h @@ -9,27 +9,6 @@ #ifndef PM2301_CHARGER_H #define PM2301_CHARGER_H -#define MAIN_WDOG_ENA 0x01 -#define MAIN_WDOG_KICK 0x02 -#define MAIN_WDOG_DIS 0x00 -#define CHARG_WD_KICK 0x01 -#define MAIN_CH_ENA 0x01 -#define MAIN_CH_NO_OVERSHOOT_ENA_N 0x02 -#define MAIN_CH_DET 0x01 -#define MAIN_CH_CV_ON 0x04 -#define OTP_ENABLE_WD 0x01 - -#define MAIN_CH_INPUT_CURR_SHIFT 4 - -#define LED_INDICATOR_PWM_ENA 0x01 -#define LED_INDICATOR_PWM_DIS 0x00 -#define LED_IND_CUR_5MA 0x04 -#define LED_INDICATOR_PWM_DUTY_252_256 0xBF - -/* HW failure constants */ -#define MAIN_CH_TH_PROT 0x02 -#define MAIN_CH_NOK 0x01 - /* Watchdog timeout constant */ #define WD_TIMER 0x30 /* 4min */ #define WD_KICK_INTERVAL (30 * HZ) @@ -495,7 +474,6 @@ struct pm2xxx_charger { int failure_input_ovv; unsigned int lpn_pin; struct pm2xxx_interrupts *pm2_int; - struct ab8500_gpadc *gpadc; struct regulator *regu; struct pm2xxx_bm_data *bat; struct mutex lock; @@ -506,6 +484,7 @@ struct pm2xxx_charger { struct delayed_work check_vbat_work; struct work_struct ac_work; struct work_struct check_main_thermal_prot_work; + struct delayed_work check_hw_failure_work; struct ux500_charger ac_chg; struct pm2xxx_charger_event_flags flags; }; diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index 5deac43..1c517c3 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -26,17 +26,42 @@ EXPORT_SYMBOL_GPL(power_supply_class); static struct device_type power_supply_dev_type; +static bool __power_supply_is_supplied_by(struct power_supply *supplier, + struct power_supply *supply) +{ + int i; + + if (!supply->supplied_from && !supplier->supplied_to) + return false; + + /* Support both supplied_to and supplied_from modes */ + if (supply->supplied_from) { + if (!supplier->name) + return false; + for (i = 0; i < supply->num_supplies; i++) + if (!strcmp(supplier->name, supply->supplied_from[i])) + return true; + } else { + if (!supply->name) + return false; + for (i = 0; i < supplier->num_supplicants; i++) + if (!strcmp(supplier->supplied_to[i], supply->name)) + return true; + } + + return false; +} + static int __power_supply_changed_work(struct device *dev, void *data) { struct power_supply *psy = (struct power_supply *)data; struct power_supply *pst = dev_get_drvdata(dev); - int i; - for (i = 0; i < psy->num_supplicants; i++) - if (!strcmp(psy->supplied_to[i], pst->name)) { - if (pst->external_power_changed) - pst->external_power_changed(pst); - } + if (__power_supply_is_supplied_by(psy, pst)) { + if (pst->external_power_changed) + pst->external_power_changed(pst); + } + return 0; } @@ -63,22 +88,151 @@ void power_supply_changed(struct power_supply *psy) } EXPORT_SYMBOL_GPL(power_supply_changed); +#ifdef CONFIG_OF +#include + +static int __power_supply_populate_supplied_from(struct device *dev, + void *data) +{ + struct power_supply *psy = (struct power_supply *)data; + struct power_supply *epsy = dev_get_drvdata(dev); + struct device_node *np; + int i = 0; + + do { + np = of_parse_phandle(psy->of_node, "power-supplies", i++); + if (!np) + continue; + + if (np == epsy->of_node) { + dev_info(psy->dev, "%s: Found supply : %s\n", + psy->name, epsy->name); + psy->supplied_from[i-1] = (char *)epsy->name; + psy->num_supplies++; + break; + } + } while (np); + + return 0; +} + +static int power_supply_populate_supplied_from(struct power_supply *psy) +{ + int error; + + error = class_for_each_device(power_supply_class, NULL, psy, + __power_supply_populate_supplied_from); + + dev_dbg(psy->dev, "%s %d\n", __func__, error); + + return error; +} + +static int __power_supply_find_supply_from_node(struct device *dev, + void *data) +{ + struct device_node *np = (struct device_node *)data; + struct power_supply *epsy = dev_get_drvdata(dev); + + /* return error breaks out of class_for_each_device loop */ + if (epsy->of_node == np) + return -EINVAL; + + return 0; +} + +static int power_supply_find_supply_from_node(struct device_node *supply_node) +{ + int error; + struct device *dev; + struct class_dev_iter iter; + + /* + * Use iterator to see if any other device is registered. + * This is required since class_for_each_device returns 0 + * if there are no devices registered. + */ + class_dev_iter_init(&iter, power_supply_class, NULL, NULL); + dev = class_dev_iter_next(&iter); + + if (!dev) + return -EPROBE_DEFER; + + /* + * We have to treat the return value as inverted, because if + * we return error on not found, then it won't continue looking. + * So we trick it by returning error on success to stop looking + * once the matching device is found. + */ + error = class_for_each_device(power_supply_class, NULL, supply_node, + __power_supply_find_supply_from_node); + + return error ? 0 : -EPROBE_DEFER; +} + +static int power_supply_check_supplies(struct power_supply *psy) +{ + struct device_node *np; + int cnt = 0; + + /* If there is already a list honor it */ + if (psy->supplied_from && psy->num_supplies > 0) + return 0; + + /* No device node found, nothing to do */ + if (!psy->of_node) + return 0; + + do { + int ret; + + np = of_parse_phandle(psy->of_node, "power-supplies", cnt++); + if (!np) + continue; + + ret = power_supply_find_supply_from_node(np); + if (ret) { + dev_dbg(psy->dev, "Failed to find supply, defer!\n"); + return -EPROBE_DEFER; + } + } while (np); + + /* All supplies found, allocate char ** array for filling */ + psy->supplied_from = devm_kzalloc(psy->dev, sizeof(psy->supplied_from), + GFP_KERNEL); + if (!psy->supplied_from) { + dev_err(psy->dev, "Couldn't allocate memory for supply list\n"); + return -ENOMEM; + } + + *psy->supplied_from = devm_kzalloc(psy->dev, sizeof(char *) * cnt, + GFP_KERNEL); + if (!*psy->supplied_from) { + dev_err(psy->dev, "Couldn't allocate memory for supply list\n"); + return -ENOMEM; + } + + return power_supply_populate_supplied_from(psy); +} +#else +static inline int power_supply_check_supplies(struct power_supply *psy) +{ + return 0; +} +#endif + static int __power_supply_am_i_supplied(struct device *dev, void *data) { union power_supply_propval ret = {0,}; struct power_supply *psy = (struct power_supply *)data; struct power_supply *epsy = dev_get_drvdata(dev); - int i; - for (i = 0; i < epsy->num_supplicants; i++) { - if (!strcmp(epsy->supplied_to[i], psy->name)) { - if (epsy->get_property(epsy, - POWER_SUPPLY_PROP_ONLINE, &ret)) - continue; + if (__power_supply_is_supplied_by(epsy, psy)) + if (!epsy->get_property(epsy, POWER_SUPPLY_PROP_ONLINE, &ret)) { if (ret.intval) return ret.intval; } - } + return 0; } @@ -336,6 +490,12 @@ int power_supply_register(struct device *parent, struct power_supply *psy) INIT_WORK(&psy->changed_work, power_supply_changed_work); + rc = power_supply_check_supplies(psy); + if (rc) { + dev_info(dev, "Not all required supplies found, defer probe\n"); + goto check_supplies_failed; + } + rc = kobject_set_name(&dev->kobj, "%s", psy->name); if (rc) goto kobject_set_name_failed; @@ -368,6 +528,7 @@ register_thermal_failed: device_del(dev); kobject_set_name_failed: device_add_failed: +check_supplies_failed: put_device(dev); success: return rc; diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig index 1ae65b8..349e9ae 100644 --- a/drivers/power/reset/Kconfig +++ b/drivers/power/reset/Kconfig @@ -30,3 +30,10 @@ config POWER_RESET_RESTART Some boards don't actually have the ability to power off. Instead they restart, and u-boot holds the SoC until the user presses a key. u-boot then boots into Linux. + +config POWER_RESET_VEXPRESS + bool + depends on POWER_RESET + help + Power off and reset support for the ARM Ltd. Versatile + Express boards. diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile index 0f317f5..372807f 100644 --- a/drivers/power/reset/Makefile +++ b/drivers/power/reset/Makefile @@ -1,3 +1,4 @@ obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o -obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o> \ No newline at end of file +obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o +obj-$(CONFIG_POWER_RESET_VEXPRESS) += vexpress-poweroff.o diff --git a/arch/arm/mach-vexpress/reset.c b/drivers/power/reset/vexpress-poweroff.c similarity index 96% rename from arch/arm/mach-vexpress/reset.c rename to drivers/power/reset/vexpress-poweroff.c index 465923a..469e696 100644 --- a/arch/arm/mach-vexpress/reset.c +++ b/drivers/power/reset/vexpress-poweroff.c @@ -18,6 +18,8 @@ #include #include +#include + static void vexpress_reset_do(struct device *dev, const char *what) { int err = -ENOENT; @@ -39,14 +41,14 @@ static void vexpress_reset_do(struct device *dev, const char *what) static struct device *vexpress_power_off_device; -void vexpress_power_off(void) +static void vexpress_power_off(void) { vexpress_reset_do(vexpress_power_off_device, "power off"); } static struct device *vexpress_restart_device; -void vexpress_restart(char str, const char *cmd) +static void vexpress_restart(char str, const char *cmd) { vexpress_reset_do(vexpress_restart_device, "restart"); } @@ -103,14 +105,17 @@ static int vexpress_reset_probe(struct platform_device *pdev) switch (func) { case FUNC_SHUTDOWN: vexpress_power_off_device = &pdev->dev; + pm_power_off = vexpress_power_off; break; case FUNC_RESET: if (!vexpress_restart_device) vexpress_restart_device = &pdev->dev; + arm_pm_restart = vexpress_restart; device_create_file(&pdev->dev, &dev_attr_active); break; case FUNC_REBOOT: vexpress_restart_device = &pdev->dev; + arm_pm_restart = vexpress_restart; device_create_file(&pdev->dev, &dev_attr_active); break; }; diff --git a/drivers/power/rx51_battery.c b/drivers/power/rx51_battery.c index 8208888..1a1dcb8 100644 --- a/drivers/power/rx51_battery.c +++ b/drivers/power/rx51_battery.c @@ -119,7 +119,7 @@ static int rx51_battery_read_temperature(struct rx51_device_info *di) /* First check for temperature in first direct table */ if (raw < ARRAY_SIZE(rx51_temp_table1)) - return rx51_temp_table1[raw] * 100; + return rx51_temp_table1[raw] * 10; /* Binary search RAW value in second inverse table */ while (max - min > 1) { @@ -132,7 +132,7 @@ static int rx51_battery_read_temperature(struct rx51_device_info *di) break; } - return (rx51_temp_table2_first - min) * 100; + return (rx51_temp_table2_first - min) * 10; } /* @@ -202,7 +202,7 @@ static int rx51_battery_probe(struct platform_device *pdev) struct rx51_device_info *di; int ret; - di = kzalloc(sizeof(*di), GFP_KERNEL); + di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL); if (!di) return -ENOMEM; @@ -217,7 +217,6 @@ static int rx51_battery_probe(struct platform_device *pdev) ret = power_supply_register(di->dev, &di->bat); if (ret) { platform_set_drvdata(pdev, NULL); - kfree(di); return ret; } @@ -230,7 +229,6 @@ static int rx51_battery_remove(struct platform_device *pdev) power_supply_unregister(&di->bat); platform_set_drvdata(pdev, NULL); - kfree(di); return 0; } diff --git a/drivers/power/s3c_adc_battery.c b/drivers/power/s3c_adc_battery.c index d2ca989..5948ce0 100644 --- a/drivers/power/s3c_adc_battery.c +++ b/drivers/power/s3c_adc_battery.c @@ -145,14 +145,17 @@ static int s3c_adc_bat_get_property(struct power_supply *psy, int new_level; int full_volt; - const struct s3c_adc_bat_thresh *lut = bat->pdata->lut_noac; - unsigned int lut_size = bat->pdata->lut_noac_cnt; + const struct s3c_adc_bat_thresh *lut; + unsigned int lut_size; if (!bat) { dev_err(psy->dev, "no battery infos ?!\n"); return -EINVAL; } + lut = bat->pdata->lut_noac; + lut_size = bat->pdata->lut_noac_cnt; + if (bat->volt_value < 0 || bat->cur_value < 0 || jiffies_to_msecs(jiffies - bat->timestamp) > BAT_POLL_INTERVAL) { diff --git a/drivers/power/sbs-battery.c b/drivers/power/sbs-battery.c index 3960f0b..c8c78a7 100644 --- a/drivers/power/sbs-battery.c +++ b/drivers/power/sbs-battery.c @@ -27,6 +27,7 @@ #include #include #include +#include #include @@ -667,7 +668,6 @@ of_out: return pdata; } #else -#define sbs_dt_ids NULL static struct sbs_platform_data *sbs_of_populate_pdata( struct i2c_client *client) { @@ -820,10 +820,11 @@ static int sbs_remove(struct i2c_client *client) return 0; } -#if defined CONFIG_PM -static int sbs_suspend(struct i2c_client *client, - pm_message_t state) +#if defined CONFIG_PM_SLEEP + +static int sbs_suspend(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); struct sbs_info *chip = i2c_get_clientdata(client); s32 ret; @@ -838,11 +839,13 @@ static int sbs_suspend(struct i2c_client *client, return 0; } + +static SIMPLE_DEV_PM_OPS(sbs_pm_ops, sbs_suspend, NULL); +#define SBS_PM_OPS (&sbs_pm_ops) + #else -#define sbs_suspend NULL +#define SBS_PM_OPS NULL #endif -/* any smbus transaction will wake up sbs */ -#define sbs_resume NULL static const struct i2c_device_id sbs_id[] = { { "bq20z75", 0 }, @@ -854,12 +857,11 @@ MODULE_DEVICE_TABLE(i2c, sbs_id); static struct i2c_driver sbs_battery_driver = { .probe = sbs_probe, .remove = sbs_remove, - .suspend = sbs_suspend, - .resume = sbs_resume, .id_table = sbs_id, .driver = { .name = "sbs-battery", - .of_match_table = sbs_dt_ids, + .of_match_table = of_match_ptr(sbs_dt_ids), + .pm = SBS_PM_OPS, }, }; module_i2c_driver(sbs_battery_driver); diff --git a/drivers/power/test_power.c b/drivers/power/test_power.c index b99a452..0152f35 100644 --- a/drivers/power/test_power.c +++ b/drivers/power/test_power.c @@ -30,6 +30,8 @@ static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION; static int battery_capacity = 50; static int battery_voltage = 3300; +static bool module_initialized; + static int test_power_get_ac_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -185,6 +187,7 @@ static int __init test_power_init(void) } } + module_initialized = true; return 0; failed: while (--i >= 0) @@ -209,6 +212,8 @@ static void __exit test_power_exit(void) for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) power_supply_unregister(&test_power_supplies[i]); + + module_initialized = false; } module_exit(test_power_exit); @@ -221,8 +226,8 @@ struct battery_property_map { }; static struct battery_property_map map_ac_online[] = { - { 0, "on" }, - { 1, "off" }, + { 0, "off" }, + { 1, "on" }, { -1, NULL }, }; @@ -295,10 +300,16 @@ static const char *map_get_key(struct battery_property_map *map, int value, return def_key; } +static inline void signal_power_supply_changed(struct power_supply *psy) +{ + if (module_initialized) + power_supply_changed(psy); +} + static int param_set_ac_online(const char *key, const struct kernel_param *kp) { ac_online = map_get_value(map_ac_online, key, ac_online); - power_supply_changed(&test_power_supplies[0]); + signal_power_supply_changed(&test_power_supplies[0]); return 0; } @@ -311,7 +322,7 @@ static int param_get_ac_online(char *buffer, const struct kernel_param *kp) static int param_set_usb_online(const char *key, const struct kernel_param *kp) { usb_online = map_get_value(map_ac_online, key, usb_online); - power_supply_changed(&test_power_supplies[2]); + signal_power_supply_changed(&test_power_supplies[2]); return 0; } @@ -325,7 +336,7 @@ static int param_set_battery_status(const char *key, const struct kernel_param *kp) { battery_status = map_get_value(map_status, key, battery_status); - power_supply_changed(&test_power_supplies[1]); + signal_power_supply_changed(&test_power_supplies[1]); return 0; } @@ -339,7 +350,7 @@ static int param_set_battery_health(const char *key, const struct kernel_param *kp) { battery_health = map_get_value(map_health, key, battery_health); - power_supply_changed(&test_power_supplies[1]); + signal_power_supply_changed(&test_power_supplies[1]); return 0; } @@ -353,7 +364,7 @@ static int param_set_battery_present(const char *key, const struct kernel_param *kp) { battery_present = map_get_value(map_present, key, battery_present); - power_supply_changed(&test_power_supplies[0]); + signal_power_supply_changed(&test_power_supplies[0]); return 0; } @@ -369,7 +380,7 @@ static int param_set_battery_technology(const char *key, { battery_technology = map_get_value(map_technology, key, battery_technology); - power_supply_changed(&test_power_supplies[1]); + signal_power_supply_changed(&test_power_supplies[1]); return 0; } @@ -390,7 +401,7 @@ static int param_set_battery_capacity(const char *key, return -EINVAL; battery_capacity = tmp; - power_supply_changed(&test_power_supplies[1]); + signal_power_supply_changed(&test_power_supplies[1]); return 0; } @@ -405,7 +416,7 @@ static int param_set_battery_voltage(const char *key, return -EINVAL; battery_voltage = tmp; - power_supply_changed(&test_power_supplies[1]); + signal_power_supply_changed(&test_power_supplies[1]); return 0; } diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c new file mode 100644 index 0000000..9fbca31 --- /dev/null +++ b/drivers/power/tps65090-charger.c @@ -0,0 +1,320 @@ +/* + * Battery charger driver for TI's tps65090 + * + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define TPS65090_REG_INTR_STS 0x00 +#define TPS65090_REG_CG_CTRL0 0x04 +#define TPS65090_REG_CG_CTRL1 0x05 +#define TPS65090_REG_CG_CTRL2 0x06 +#define TPS65090_REG_CG_CTRL3 0x07 +#define TPS65090_REG_CG_CTRL4 0x08 +#define TPS65090_REG_CG_CTRL5 0x09 +#define TPS65090_REG_CG_STATUS1 0x0a +#define TPS65090_REG_CG_STATUS2 0x0b + +#define TPS65090_CHARGER_ENABLE BIT(0) +#define TPS65090_VACG BIT(1) +#define TPS65090_NOITERM BIT(5) + +struct tps65090_charger { + struct device *dev; + int ac_online; + int prev_ac_online; + int irq; + struct power_supply ac; + struct tps65090_platform_data *pdata; +}; + +static enum power_supply_property tps65090_ac_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + +static int tps65090_low_chrg_current(struct tps65090_charger *charger) +{ + int ret; + + ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL5, + TPS65090_NOITERM); + if (ret < 0) { + dev_err(charger->dev, "%s(): error reading in register 0x%x\n", + __func__, TPS65090_REG_CG_CTRL5); + return ret; + } + return 0; +} + +static int tps65090_enable_charging(struct tps65090_charger *charger, + uint8_t enable) +{ + int ret; + uint8_t ctrl0 = 0; + + ret = tps65090_read(charger->dev->parent, TPS65090_REG_CG_CTRL0, + &ctrl0); + if (ret < 0) { + dev_err(charger->dev, "%s(): error reading in register 0x%x\n", + __func__, TPS65090_REG_CG_CTRL0); + return ret; + } + + ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL0, + (ctrl0 | TPS65090_CHARGER_ENABLE)); + if (ret < 0) { + dev_err(charger->dev, "%s(): error reading in register 0x%x\n", + __func__, TPS65090_REG_CG_CTRL0); + return ret; + } + return 0; +} + +static int tps65090_config_charger(struct tps65090_charger *charger) +{ + int ret; + + if (charger->pdata->enable_low_current_chrg) { + ret = tps65090_low_chrg_current(charger); + if (ret < 0) { + dev_err(charger->dev, + "error configuring low charge current\n"); + return ret; + } + } + + return 0; +} + +static int tps65090_ac_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct tps65090_charger *charger = container_of(psy, + struct tps65090_charger, ac); + + if (psp == POWER_SUPPLY_PROP_ONLINE) { + val->intval = charger->ac_online; + charger->prev_ac_online = charger->ac_online; + return 0; + } + return -EINVAL; +} + +static irqreturn_t tps65090_charger_isr(int irq, void *dev_id) +{ + struct tps65090_charger *charger = dev_id; + int ret; + uint8_t status1 = 0; + uint8_t intrsts = 0; + + ret = tps65090_read(charger->dev->parent, TPS65090_REG_CG_STATUS1, + &status1); + if (ret < 0) { + dev_err(charger->dev, "%s(): Error in reading reg 0x%x\n", + __func__, TPS65090_REG_CG_STATUS1); + return IRQ_HANDLED; + } + msleep(75); + ret = tps65090_read(charger->dev->parent, TPS65090_REG_INTR_STS, + &intrsts); + if (ret < 0) { + dev_err(charger->dev, "%s(): Error in reading reg 0x%x\n", + __func__, TPS65090_REG_INTR_STS); + return IRQ_HANDLED; + } + + if (intrsts & TPS65090_VACG) { + ret = tps65090_enable_charging(charger, 1); + if (ret < 0) + return IRQ_HANDLED; + charger->ac_online = 1; + } else { + charger->ac_online = 0; + } + + if (charger->prev_ac_online != charger->ac_online) + power_supply_changed(&charger->ac); + + return IRQ_HANDLED; +} + +#if defined(CONFIG_OF) + +#include + +static struct tps65090_platform_data * + tps65090_parse_dt_charger_data(struct platform_device *pdev) +{ + struct tps65090_platform_data *pdata; + struct device_node *np = pdev->dev.of_node; + unsigned int prop; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(&pdev->dev, "Memory alloc for tps65090_pdata failed\n"); + return NULL; + } + + prop = of_property_read_bool(np, "ti,enable-low-current-chrg"); + pdata->enable_low_current_chrg = prop; + + pdata->irq_base = -1; + + return pdata; + +} +#else +static struct tps65090_platform_data * + tps65090_parse_dt_charger_data(struct platform_device *pdev) +{ + return NULL; +} +#endif + +static int tps65090_charger_probe(struct platform_device *pdev) +{ + struct tps65090_charger *cdata; + struct tps65090_platform_data *pdata; + uint8_t status1 = 0; + int ret; + int irq; + + pdata = dev_get_platdata(pdev->dev.parent); + + if (!pdata && pdev->dev.of_node) + pdata = tps65090_parse_dt_charger_data(pdev); + + if (!pdata) { + dev_err(&pdev->dev, "%s():no platform data available\n", + __func__); + return -ENODEV; + } + + cdata = devm_kzalloc(&pdev->dev, sizeof(*cdata), GFP_KERNEL); + if (!cdata) { + dev_err(&pdev->dev, "failed to allocate memory status\n"); + return -ENOMEM; + } + + dev_set_drvdata(&pdev->dev, cdata); + + cdata->dev = &pdev->dev; + cdata->pdata = pdata; + + cdata->ac.name = "tps65090-ac"; + cdata->ac.type = POWER_SUPPLY_TYPE_MAINS; + cdata->ac.get_property = tps65090_ac_get_property; + cdata->ac.properties = tps65090_ac_props; + cdata->ac.num_properties = ARRAY_SIZE(tps65090_ac_props); + cdata->ac.supplied_to = pdata->supplied_to; + cdata->ac.num_supplicants = pdata->num_supplicants; + + ret = power_supply_register(&pdev->dev, &cdata->ac); + if (ret) { + dev_err(&pdev->dev, "failed: power supply register\n"); + return ret; + } + + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + dev_warn(&pdev->dev, "Unable to get charger irq = %d\n", irq); + ret = irq; + goto fail_unregister_supply; + } + + cdata->irq = irq; + + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + tps65090_charger_isr, 0, "tps65090-charger", cdata); + if (ret) { + dev_err(cdata->dev, "Unable to register irq %d err %d\n", irq, + ret); + goto fail_free_irq; + } + + ret = tps65090_config_charger(cdata); + if (ret < 0) { + dev_err(&pdev->dev, "charger config failed, err %d\n", ret); + goto fail_free_irq; + } + + /* Check for charger presence */ + ret = tps65090_read(cdata->dev->parent, TPS65090_REG_CG_STATUS1, + &status1); + if (ret < 0) { + dev_err(cdata->dev, "%s(): Error in reading reg 0x%x", __func__, + TPS65090_REG_CG_STATUS1); + goto fail_free_irq; + } + + if (status1 != 0) { + ret = tps65090_enable_charging(cdata, 1); + if (ret < 0) { + dev_err(cdata->dev, "error enabling charger\n"); + goto fail_free_irq; + } + cdata->ac_online = 1; + power_supply_changed(&cdata->ac); + } + + return 0; + +fail_free_irq: + devm_free_irq(cdata->dev, irq, cdata); +fail_unregister_supply: + power_supply_unregister(&cdata->ac); + + return ret; +} + +static int tps65090_charger_remove(struct platform_device *pdev) +{ + struct tps65090_charger *cdata = dev_get_drvdata(&pdev->dev); + + devm_free_irq(cdata->dev, cdata->irq, cdata); + power_supply_unregister(&cdata->ac); + + return 0; +} + +static struct of_device_id of_tps65090_charger_match[] = { + { .compatible = "ti,tps65090-charger", }, + { /* end */ } +}; + +static struct platform_driver tps65090_charger_driver = { + .driver = { + .name = "tps65090-charger", + .of_match_table = of_tps65090_charger_match, + .owner = THIS_MODULE, + }, + .probe = tps65090_charger_probe, + .remove = tps65090_charger_remove, +}; +module_platform_driver(tps65090_charger_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Syed Rafiuddin "); +MODULE_DESCRIPTION("tps65090 battery charger driver"); diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c index a69d0d1..bed4581 100644 --- a/drivers/power/twl4030_charger.c +++ b/drivers/power/twl4030_charger.c @@ -636,17 +636,7 @@ static struct platform_driver twl4030_bci_driver = { .remove = __exit_p(twl4030_bci_remove), }; -static int __init twl4030_bci_init(void) -{ - return platform_driver_probe(&twl4030_bci_driver, twl4030_bci_probe); -} -module_init(twl4030_bci_init); - -static void __exit twl4030_bci_exit(void) -{ - platform_driver_unregister(&twl4030_bci_driver); -} -module_exit(twl4030_bci_exit); +module_platform_driver_probe(twl4030_bci_driver, twl4030_bci_probe); MODULE_AUTHOR("GraÅžvydas Ignotas"); MODULE_DESCRIPTION("TWL4030 Battery Charger Interface driver"); diff --git a/drivers/power/wm831x_backup.c b/drivers/power/wm831x_backup.c index d9cc169..58cbb00 100644 --- a/drivers/power/wm831x_backup.c +++ b/drivers/power/wm831x_backup.c @@ -169,7 +169,8 @@ static int wm831x_backup_probe(struct platform_device *pdev) struct power_supply *backup; int ret; - devdata = kzalloc(sizeof(struct wm831x_backup), GFP_KERNEL); + devdata = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_backup), + GFP_KERNEL); if (devdata == NULL) return -ENOMEM; @@ -197,14 +198,8 @@ static int wm831x_backup_probe(struct platform_device *pdev) backup->num_properties = ARRAY_SIZE(wm831x_backup_props); backup->get_property = wm831x_backup_get_prop; ret = power_supply_register(&pdev->dev, backup); - if (ret) - goto err_kmalloc; return ret; - -err_kmalloc: - kfree(devdata); - return ret; } static int wm831x_backup_remove(struct platform_device *pdev) @@ -213,7 +208,6 @@ static int wm831x_backup_remove(struct platform_device *pdev) power_supply_unregister(&devdata->backup); kfree(devdata->backup.name); - kfree(devdata); return 0; } diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 9ead60b..3301b20 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -89,6 +89,11 @@ struct abx500_fg; * points. * @maint_thres This is the threshold where we stop reporting * battery full while in maintenance, in per cent + * @pcut_enable: Enable power cut feature in ab8505 + * @pcut_max_time: Max time threshold + * @pcut_flag_time: Flagtime threshold + * @pcut_max_restart: Max number of restarts + * @pcut_debounce_time: Sets battery debounce time */ struct abx500_fg_parameters { int recovery_sleep_timer; @@ -106,6 +111,11 @@ struct abx500_fg_parameters { int battok_raising_th_sel1; int user_cap_limit; int maint_thres; + bool pcut_enable; + u8 pcut_max_time; + u8 pcut_flag_time; + u8 pcut_max_restart; + u8 pcut_debounce_time; }; /** @@ -173,11 +183,11 @@ struct abx500_battery_type { int low_high_vol_lvl; int battery_resistance; int n_temp_tbl_elements; - struct abx500_res_to_temp *r_to_t_tbl; + const struct abx500_res_to_temp *r_to_t_tbl; int n_v_cap_tbl_elements; - struct abx500_v_to_cap *v_to_cap_tbl; + const struct abx500_v_to_cap *v_to_cap_tbl; int n_batres_tbl_elements; - struct batres_vs_temp *batres_tbl; + const struct batres_vs_temp *batres_tbl; }; /** @@ -236,7 +246,11 @@ struct abx500_bm_charger_parameters { * @interval_not_charging charge alg cycle period time when not charging (sec) * @temp_hysteresis temperature hysteresis * @gnd_lift_resistance Battery ground to phone ground resistance (mOhm) - * @maxi: maximization parameters + * @n_chg_out_curr number of elements in array chg_output_curr + * @n_chg_in_curr number of elements in array chg_input_curr + * @chg_output_curr charger output current level map + * @chg_input_curr charger input current level map + * @maxi maximization parameters * @cap_levels capacity in percent for the different capacity levels * @bat_type table of supported battery types * @chg_params charger parameters @@ -257,6 +271,7 @@ struct abx500_bm_data { bool autopower_cfg; bool ac_enabled; bool usb_enabled; + bool usb_power_path; bool no_maintenance; bool capacity_scaling; bool chg_unknown_bat; @@ -270,6 +285,10 @@ struct abx500_bm_data { int interval_not_charging; int temp_hysteresis; int gnd_lift_resistance; + int n_chg_out_curr; + int n_chg_in_curr; + int *chg_output_curr; + int *chg_input_curr; const struct abx500_maxim_parameters *maxi; const struct abx500_bm_capacity_levels *cap_levels; struct abx500_battery_type *bat_type; diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index 8d35bfe..cc892a8 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -23,6 +23,7 @@ * Bank : 0x5 */ #define AB8500_USB_LINE_STAT_REG 0x80 +#define AB8500_USB_LINE_CTRL2_REG 0x82 #define AB8500_USB_LINK1_STAT_REG 0x94 /* @@ -33,7 +34,7 @@ #define AB8500_CH_STATUS2_REG 0x01 #define AB8500_CH_USBCH_STAT1_REG 0x02 #define AB8500_CH_USBCH_STAT2_REG 0x03 -#define AB8500_CH_FSM_STAT_REG 0x04 +#define AB8540_CH_USBCH_STAT3_REG 0x04 #define AB8500_CH_STAT_REG 0x05 /* @@ -69,6 +70,8 @@ #define AB8500_USBCH_CTRL1_REG 0xC0 #define AB8500_USBCH_CTRL2_REG 0xC1 #define AB8500_USBCH_IPT_CRNTLVL_REG 0xC2 +#define AB8540_USB_PP_MODE_REG 0xC5 +#define AB8540_USB_PP_CHR_REG 0xC6 /* * Gas Gauge register offsets @@ -105,6 +108,7 @@ #define AB8500_RTC_BACKUP_CHG_REG 0x0C #define AB8500_RTC_CC_CONF_REG 0x01 #define AB8500_RTC_CTRL_REG 0x0B +#define AB8500_RTC_CTRL1_REG 0x11 /* * OTP register offsets @@ -154,6 +158,7 @@ #define CH_OP_CUR_LVL_1P4 0x0D #define CH_OP_CUR_LVL_1P5 0x0E #define CH_OP_CUR_LVL_1P6 0x0F +#define CH_OP_CUR_LVL_2P 0x3F /* BTEMP High thermal limits */ #define BTEMP_HIGH_TH_57_0 0x00 @@ -179,10 +184,25 @@ #define BUP_ICH_SEL_300UA 0x08 #define BUP_ICH_SEL_700UA 0x0C -#define BUP_VCH_SEL_2P5V 0x00 -#define BUP_VCH_SEL_2P6V 0x01 -#define BUP_VCH_SEL_2P8V 0x02 -#define BUP_VCH_SEL_3P1V 0x03 +enum bup_vch_sel { + BUP_VCH_SEL_2P5V, + BUP_VCH_SEL_2P6V, + BUP_VCH_SEL_2P8V, + BUP_VCH_SEL_3P1V, + /* + * Note that the following 5 values 2.7v, 2.9v, 3.0v, 3.2v, 3.3v + * are only available on ab8540. You can't choose these 5 + * voltage on ab8500/ab8505/ab9540. + */ + BUP_VCH_SEL_2P7V, + BUP_VCH_SEL_2P9V, + BUP_VCH_SEL_3P0V, + BUP_VCH_SEL_3P2V, + BUP_VCH_SEL_3P3V, +}; + +#define BUP_VCH_RANGE 0x02 +#define VBUP33_VRTCN 0x01 /* Battery OVV constants */ #define BATT_OVV_ENA 0x02 @@ -228,6 +248,8 @@ #define BAT_CTRL_20U_ENA 0x02 #define BAT_CTRL_18U_ENA 0x01 #define BAT_CTRL_16U_ENA 0x02 +#define BAT_CTRL_60U_ENA 0x01 +#define BAT_CTRL_120U_ENA 0x02 #define BAT_CTRL_CMP_ENA 0x04 #define FORCE_BAT_CTRL_CMP_HIGH 0x08 #define BAT_CTRL_PULL_UP_ENA 0x10 @@ -235,6 +257,24 @@ /* Battery type */ #define BATTERY_UNKNOWN 00 +/* Registers for pcut feature in ab8505 and ab9540 */ +#define AB8505_RTC_PCUT_CTL_STATUS_REG 0x12 +#define AB8505_RTC_PCUT_TIME_REG 0x13 +#define AB8505_RTC_PCUT_MAX_TIME_REG 0x14 +#define AB8505_RTC_PCUT_FLAG_TIME_REG 0x15 +#define AB8505_RTC_PCUT_RESTART_REG 0x16 +#define AB8505_RTC_PCUT_DEBOUNCE_REG 0x17 + +/* USB Power Path constants for ab8540 */ +#define BUS_VSYS_VOL_SELECT_MASK 0x06 +#define BUS_VSYS_VOL_SELECT_3P6V 0x00 +#define BUS_VSYS_VOL_SELECT_3P325V 0x02 +#define BUS_VSYS_VOL_SELECT_3P9V 0x04 +#define BUS_VSYS_VOL_SELECT_4P3V 0x06 +#define BUS_POWER_PATH_MODE_ENA 0x01 +#define BUS_PP_PRECHG_CURRENT_MASK 0x0E +#define BUS_POWER_PATH_PRECHG_ENA 0x01 + /** * struct res_to_temp - defines one point in a temp to res curve. To * be used in battery packs that combines the identification resistor with a @@ -283,6 +323,11 @@ struct ab8500_fg; * points. * @maint_thres This is the threshold where we stop reporting * battery full while in maintenance, in per cent + * @pcut_enable: Enable power cut feature in ab8505 + * @pcut_max_time: Max time threshold + * @pcut_flag_time: Flagtime threshold + * @pcut_max_restart: Max number of restarts + * @pcut_debunce_time: Sets battery debounce time */ struct ab8500_fg_parameters { int recovery_sleep_timer; @@ -299,6 +344,11 @@ struct ab8500_fg_parameters { int battok_raising_th_sel1; int user_cap_limit; int maint_thres; + bool pcut_enable; + u8 pcut_max_time; + u8 pcut_flag_time; + u8 pcut_max_restart; + u8 pcut_debunce_time; }; /** @@ -415,6 +465,7 @@ void ab8500_fg_reinit(void); void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA); struct ab8500_btemp *ab8500_btemp_get(void); int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp); +int ab8500_btemp_get_temp(struct ab8500_btemp *btemp); struct ab8500_fg *ab8500_fg_get(void); int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev); int ab8500_fg_inst_curr_start(struct ab8500_fg *di); diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h index 2529667..49ded00 100644 --- a/include/linux/mfd/abx500/ab8500-gpadc.h +++ b/include/linux/mfd/abx500/ab8500-gpadc.h @@ -4,32 +4,72 @@ * * Author: Arun R Murthy * Author: Daniel Willerud + * Author: M'boumba Cedric Madianga */ #ifndef _AB8500_GPADC_H #define _AB8500_GPADC_H -/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2) */ -#define BAT_CTRL 0x01 -#define BTEMP_BALL 0x02 -#define MAIN_CHARGER_V 0x03 -#define ACC_DETECT1 0x04 -#define ACC_DETECT2 0x05 -#define ADC_AUX1 0x06 -#define ADC_AUX2 0x07 -#define MAIN_BAT_V 0x08 -#define VBUS_V 0x09 -#define MAIN_CHARGER_C 0x0A -#define USB_CHARGER_C 0x0B -#define BK_BAT_V 0x0C -#define DIE_TEMP 0x0D +/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2 + * and ADCHwSel[4:0] in GPADCCtrl3 ) */ +#define BAT_CTRL 0x01 +#define BTEMP_BALL 0x02 +#define MAIN_CHARGER_V 0x03 +#define ACC_DETECT1 0x04 +#define ACC_DETECT2 0x05 +#define ADC_AUX1 0x06 +#define ADC_AUX2 0x07 +#define MAIN_BAT_V 0x08 +#define VBUS_V 0x09 +#define MAIN_CHARGER_C 0x0A +#define USB_CHARGER_C 0x0B +#define BK_BAT_V 0x0C +#define DIE_TEMP 0x0D +#define USB_ID 0x0E +#define XTAL_TEMP 0x12 +#define VBAT_TRUE_MEAS 0x13 +#define BAT_CTRL_AND_IBAT 0x1C +#define VBAT_MEAS_AND_IBAT 0x1D +#define VBAT_TRUE_MEAS_AND_IBAT 0x1E +#define BAT_TEMP_AND_IBAT 0x1F + +/* Virtual channel used only for ibat convertion to ampere + * Battery current conversion (ibat) cannot be requested as a single conversion + * but it is always in combination with other input requests + */ +#define IBAT_VIRTUAL_CHANNEL 0xFF + +#define SAMPLE_1 1 +#define SAMPLE_4 4 +#define SAMPLE_8 8 +#define SAMPLE_16 16 +#define RISING_EDGE 0 +#define FALLING_EDGE 1 + +/* Arbitrary ADC conversion type constants */ +#define ADC_SW 0 +#define ADC_HW 1 struct ab8500_gpadc; struct ab8500_gpadc *ab8500_gpadc_get(char *name); -int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel); -int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel); +int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type); +static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel) +{ + return ab8500_gpadc_sw_hw_convert(gpadc, channel, + SAMPLE_16, 0, 0, ADC_SW); +} + +int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type); +int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, + u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type, + int *ibat); int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, - u8 channel, int ad_value); + u8 channel, int ad_value); +void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, + u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, + u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h); #endif /* _AB8500_GPADC_H */ diff --git a/include/linux/mfd/abx500/ab8500-sysctrl.h b/include/linux/mfd/abx500/ab8500-sysctrl.h index ebf12e7..990bc93 100644 --- a/include/linux/mfd/abx500/ab8500-sysctrl.h +++ b/include/linux/mfd/abx500/ab8500-sysctrl.h @@ -12,6 +12,7 @@ int ab8500_sysctrl_read(u16 reg, u8 *value); int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value); +void ab8500_restart(char mode, const char *cmd); #else @@ -40,6 +41,7 @@ static inline int ab8500_sysctrl_clear(u16 reg, u8 bits) /* Configuration data for SysClkReq1RfClkBuf - SysClkReq8RfClkBuf */ struct ab8500_sysctrl_platform_data { u8 initial_req_buf_config[8]; + u16 (*reboot_reason_code)(const char *cmd); }; /* Registers */ @@ -299,4 +301,8 @@ struct ab8500_sysctrl_platform_data { #define AB9540_SYSCLK12BUF4VALID_SYSCLK12BUF4VALID_MASK 0xFF #define AB9540_SYSCLK12BUF4VALID_SYSCLK12BUF4VALID_SHIFT 0 +#define AB8500_ENABLE_WD 0x1 +#define AB8500_KICK_WD 0x2 +#define AB8500_WD_RESTART_ON_EXPIRE 0x10 + #endif /* __AB8500_SYSCTRL_H */ diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 84f4494..fb1bf7d 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -362,6 +362,7 @@ struct ab8500 { u8 *oldmask; int mask_size; const int *irq_reg_offset; + int it_latchhier_num; }; struct ab8500_regulator_platform_data; @@ -505,6 +506,8 @@ static inline int is_ab9540_2p0_or_earlier(struct ab8500 *ab) return (is_ab9540(ab) && (ab->chip_id < AB8500_CUT2P0)); } +void ab8500_override_turn_on_stat(u8 mask, u8 set); + #ifdef CONFIG_AB8500_DEBUG void ab8500_dump_all_banks(struct device *dev); void ab8500_debug_register_interrupt(int line); diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h index d43ac0f..234c991 100644 --- a/include/linux/mfd/abx500/ux500_chargalg.h +++ b/include/linux/mfd/abx500/ux500_chargalg.h @@ -17,8 +17,11 @@ struct ux500_charger; struct ux500_charger_ops { int (*enable) (struct ux500_charger *, int, int, int); + int (*check_enable) (struct ux500_charger *, int, int); int (*kick_wd) (struct ux500_charger *); int (*update_curr) (struct ux500_charger *, int); + int (*pp_enable) (struct ux500_charger *, bool); + int (*pre_chg_enable) (struct ux500_charger *, bool); }; /** @@ -29,6 +32,7 @@ struct ux500_charger_ops { * @max_out_curr maximum output charger current in mA * @enabled indicates if this charger is used or not * @external external charger unit (pm2xxx) + * @power_path USB power path support */ struct ux500_charger { struct power_supply psy; @@ -38,6 +42,9 @@ struct ux500_charger { int wdt_refresh; bool enabled; bool external; + bool power_path; }; +extern struct blocking_notifier_head charger_notifier_list; + #endif diff --git a/include/linux/mfd/tps65090.h b/include/linux/mfd/tps65090.h index 6694cf4..998628a 100644 --- a/include/linux/mfd/tps65090.h +++ b/include/linux/mfd/tps65090.h @@ -86,6 +86,11 @@ struct tps65090_regulator_plat_data { struct tps65090_platform_data { int irq_base; + + char **supplied_to; + size_t num_supplicants; + int enable_low_current_chrg; + struct tps65090_regulator_plat_data *reg_pdata[TPS65090_REGULATOR_MAX]; }; diff --git a/include/linux/pm2301_charger.h b/include/linux/pm2301_charger.h index fc3f026..85c16de 100644 --- a/include/linux/pm2301_charger.h +++ b/include/linux/pm2301_charger.h @@ -48,7 +48,7 @@ struct pm2xxx_charger_platform_data { size_t num_supplicants; int i2c_bus; const char *label; - int irq_number; + int gpio_irq_number; unsigned int lpn_gpio; int irq_type; }; diff --git a/include/linux/power/ab8500.h b/include/linux/power/ab8500.h new file mode 100644 index 0000000..cdbb6c2 --- /dev/null +++ b/include/linux/power/ab8500.h @@ -0,0 +1,16 @@ +/* + * Copyright (C) ST-Ericsson 2013 + * Author: Hongbo Zhang + * License terms: GNU General Public License v2 + */ + +#ifndef PWR_AB8500_H +#define PWR_AB8500_H + +extern const struct abx500_res_to_temp ab8500_temp_tbl_a_thermistor[]; +extern const int ab8500_temp_tbl_a_size; + +extern const struct abx500_res_to_temp ab8500_temp_tbl_b_thermistor[]; +extern const int ab8500_temp_tbl_b_size; + +#endif /* PWR_AB8500_H */ diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 002a99f..3828cef 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -171,6 +171,12 @@ struct power_supply { char **supplied_to; size_t num_supplicants; + char **supplied_from; + size_t num_supplies; +#ifdef CONFIG_OF + struct device_node *of_node; +#endif + int (*get_property)(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val); diff --git a/include/linux/vexpress.h b/include/linux/vexpress.h index 7581874..ea7168a 100644 --- a/include/linux/vexpress.h +++ b/include/linux/vexpress.h @@ -115,9 +115,6 @@ unsigned __vexpress_get_site(struct device *dev, struct device_node *node); void vexpress_sysreg_early_init(void __iomem *base); void vexpress_sysreg_of_early_init(void); -void vexpress_power_off(void); -void vexpress_restart(char str, const char *cmd); - /* Clocks */ struct clk *vexpress_osc_setup(struct device *dev);