Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Merge commit. Changes below are compared with the first parent: d0423808.
Changes
34 files changed · +1033 −519
Only the first 600 diff lines are shown. Download the complete patch.
Documentation/devicetree/bindings/input/adc-keys.txt
View filediff --git a/Documentation/devicetree/bindings/input/adc-keys.txt b/Documentation/devicetree/bindings/input/adc-keys.txt
new file mode 100644
index 0000000..e551814
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/adc-keys.txt
@@ -0,0 +1,49 @@
+ADC attached resistor ladder buttons
+------------------------------------
+
+Required properties:
+ - compatible: "adc-keys"
+ - io-channels: Phandle to an ADC channel
+ - io-channel-names = "buttons";
+ - keyup-threshold-microvolt: Voltage at which all the keys are considered up.
+
+Optional properties:
+ - poll-interval: Poll interval time in milliseconds
+ - autorepeat: Boolean, Enable auto repeat feature of Linux input
+ subsystem.
+
+Each button (key) is represented as a sub-node of "adc-keys":
+
+Required subnode-properties:
+ - label: Descriptive name of the key.
+ - linux,code: Keycode to emit.
+ - press-threshold-microvolt: Voltage ADC input when this key is pressed.
+
+Example:
+
+#include <dt-bindings/input/input.h>
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&lradc 0>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <2000000>;
+
+ button-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ press-threshold-microvolt = <1500000>;
+ };
+
+ button-down {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ press-threshold-microvolt = <1000000>;
+ };
+
+ button-enter {
+ label = "Enter";
+ linux,code = <KEY_ENTER>;
+ press-threshold-microvolt = <500000>;
+ };
+ };
Documentation/devicetree/bindings/input/gpio-decoder.txt
View filediff --git a/Documentation/devicetree/bindings/input/gpio-decoder.txt b/Documentation/devicetree/bindings/input/gpio-decoder.txt
new file mode 100644
index 0000000..14a77fb
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/gpio-decoder.txt
@@ -0,0 +1,23 @@
+* GPIO Decoder DT bindings
+
+Required Properties:
+- compatible: should be "gpio-decoder"
+- gpios: a spec of gpios (at least two) to be decoded to a number with
+ first entry representing the MSB.
+
+Optional Properties:
+- decoder-max-value: Maximum possible value that can be reported by
+ the gpios.
+- linux,axis: the input subsystem axis to map to (ABS_X/ABS_Y).
+ Defaults to 0 (ABS_X).
+
+Example:
+ gpio-decoder0 {
+ compatible = "gpio-decoder";
+ gpios = <&pca9536 3 GPIO_ACTIVE_HIGH>,
+ <&pca9536 2 GPIO_ACTIVE_HIGH>,
+ <&pca9536 1 GPIO_ACTIVE_HIGH>,
+ <&pca9536 0 GPIO_ACTIVE_HIGH>;
+ linux,axis = <0>; /* ABS_X */
+ decoder-max-value = <9>;
+ };
Documentation/devicetree/bindings/input/gpio-keys-polled.txt
View filediff --git a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
index 95d0fb1..4d9a371 100644
--- a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
+++ b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
@@ -34,11 +34,10 @@ Example nodes:
gpio_keys_polled {
compatible = "gpio-keys-polled";
- #address-cells = <1>;
- #size-cells = <0>;
poll-interval = <100>;
autorepeat;
- button@21 {
+
+ button21 {
label = "GPIO Key UP";
linux,code = <103>;
gpios = <&gpio1 0 1>;
Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
View filediff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
index f99528d..6db2210 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
@@ -19,6 +19,7 @@ Required properties:
or: "edt,edt-ft5306"
or: "edt,edt-ft5406"
or: "edt,edt-ft5506"
+ or: "focaltech,ft6236"
- reg: I2C slave address of the chip (0x38)
- interrupt-parent: a phandle pointing to the interrupt controller
@@ -43,6 +44,13 @@ Optional properties:
- offset: allows setting the edge compensation in the range from
0 to 31.
+ - touchscreen-size-x : See touchscreen.txt
+ - touchscreen-size-y : See touchscreen.txt
+ - touchscreen-fuzz-x : See touchscreen.txt
+ - touchscreen-fuzz-y : See touchscreen.txt
+ - touchscreen-inverted-x : See touchscreen.txt
+ - touchscreen-inverted-y : See touchscreen.txt
+ - touchscreen-swapped-x-y : See touchscreen.txt
Example:
polytouch: edt-ft5x06@38 {
Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
View filediff --git a/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
new file mode 100644
index 0000000..5a19f4c
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
@@ -0,0 +1,27 @@
+* Elan eKTF2127 I2C touchscreen controller
+
+Required properties:
+ - compatible : "elan,ektf2127"
+ - reg : I2C slave address of the chip (0x40)
+ - interrupt-parent : a phandle pointing to the interrupt controller
+ serving the interrupt for this chip
+ - interrupts : interrupt specification for the ektf2127 interrupt
+ - power-gpios : GPIO specification for the pin connected to the
+ ektf2127's wake input. This needs to be driven high
+ to take ektf2127 out of it's low power state
+
+For additional optional properties see: touchscreen.txt
+
+Example:
+
+i2c@00000000 {
+ ektf2127: touchscreen@15 {
+ compatible = "elan,ektf2127";
+ reg = <0x15>;
+ interrupt-parent = <&pio>;
+ interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>
+ power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
+ touchscreen-inverted-x;
+ touchscreen-swapped-x-y;
+ };
+};
Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt
View before deletiondiff --git a/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt b/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt
deleted file mode 100644
index 777521d..0000000
--- a/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-* FocalTech FT6236 I2C touchscreen controller
-
-Required properties:
- - compatible : "focaltech,ft6236"
- - reg : I2C slave address of the chip (0x38)
- - interrupt-parent : a phandle pointing to the interrupt controller
- serving the interrupt for this chip
- - interrupts : interrupt specification for the touch controller
- interrupt
- - reset-gpios : GPIO specification for the RSTN input
- - touchscreen-size-x : horizontal resolution of touchscreen (in pixels)
- - touchscreen-size-y : vertical resolution of touchscreen (in pixels)
-
-Optional properties:
- - touchscreen-fuzz-x : horizontal noise value of the absolute input
- device (in pixels)
- - touchscreen-fuzz-y : vertical noise value of the absolute input
- device (in pixels)
- - touchscreen-inverted-x : X axis is inverted (boolean)
- - touchscreen-inverted-y : Y axis is inverted (boolean)
- - touchscreen-swapped-x-y: X and Y axis are swapped (boolean)
- Swapping is done after inverting the axis
-
-Example:
-
- ft6x06@38 {
- compatible = "focaltech,ft6236";
- reg = <0x38>;
- interrupt-parent = <&gpio>;
- interrupts = <23 2>;
- touchscreen-size-x = <320>;
- touchscreen-size-y = <480>;
- touchscreen-inverted-x;
- touchscreen-swapped-x-y;
- };
Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
View filediff --git a/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt b/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
index e30e0b9..3e5b979 100644
--- a/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
+++ b/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
@@ -1,13 +1,24 @@
-Texas Instruments TPS65218 power button
+Texas Instruments TPS65217 and TPS65218 power button
+
+This module is part of the TPS65217/TPS65218. For more details about the whole
+TPS65217 chip see Documentation/devicetree/bindings/regulator/tps65217.txt.
This driver provides a simple power button event via an Interrupt.
Required properties:
-- compatible: should be "ti,tps65218-pwrbutton"
+- compatible: should be "ti,tps65217-pwrbutton" or "ti,tps65218-pwrbutton"
+
+Required properties for TPS65218:
- interrupts: should be one of the following
- <3 IRQ_TYPE_EDGE_BOTH>: For controllers compatible with tps65218
-Example:
+Examples:
+
+&tps {
+ tps65217-pwrbutton {
+ compatible = "ti,tps65217-pwrbutton";
+ };
+};
&tps {
power-button {
arch/arm/mach-sa1100/jornada720.c
View filediff --git a/arch/arm/mach-sa1100/jornada720.c b/arch/arm/mach-sa1100/jornada720.c
index c0b1f5b..0a2ca9b 100644
--- a/arch/arm/mach-sa1100/jornada720.c
+++ b/arch/arm/mach-sa1100/jornada720.c
@@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/delay.h>
+#include <linux/gpio/machine.h>
#include <linux/platform_data/sa11x0-serial.h>
#include <linux/platform_device.h>
#include <linux/ioport.h>
@@ -217,9 +218,22 @@ static struct platform_device jornada_ssp_device = {
.id = -1,
};
+static struct resource jornada_kbd_resources[] = {
+ DEFINE_RES_IRQ(IRQ_GPIO0),
+};
+
static struct platform_device jornada_kbd_device = {
.name = "jornada720_kbd",
.id = -1,
+ .num_resources = ARRAY_SIZE(jornada_kbd_resources),
+ .resource = jornada_kbd_resources,
+};
+
+static struct gpiod_lookup_table jornada_ts_gpiod_table = {
+ .dev_id = "jornada_ts",
+ .table = {
+ GPIO_LOOKUP("gpio", 9, "penup", GPIO_ACTIVE_HIGH),
+ },
};
static struct platform_device jornada_ts_device = {
@@ -250,6 +264,8 @@ static int __init jornada720_init(void)
GPSR = GPIO_GPIO20; /* restart gpio20 */
udelay(20); /* give it some time to restart */
+ gpiod_add_lookup_table(&jornada_ts_gpiod_table);
+
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
}
drivers/input/keyboard/Kconfig
View filediff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 509608c..cbd75cf 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -12,6 +12,21 @@ menuconfig INPUT_KEYBOARD
if INPUT_KEYBOARD
+config KEYBOARD_ADC
+ tristate "ADC Ladder Buttons"
+ depends on IIO
+ select INPUT_POLLDEV
+ help
+ This driver implements support for buttons connected
+ to an ADC using a resistor ladder.
+
+ Say Y here if your device has such buttons connected to an ADC. Your
+ board-specific setup logic must also provide a configuration data
+ for mapping voltages to buttons.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adc_keys.
+
config KEYBOARD_ADP5520
tristate "Keypad Support for ADP5520 PMIC"
depends on PMIC_ADP5520
drivers/input/keyboard/Makefile
View filediff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 1d416dd..d9f4cfc 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -4,6 +4,7 @@
# Each configuration option enables a list of files.
+obj-$(CONFIG_KEYBOARD_ADC) += adc-keys.o
obj-$(CONFIG_KEYBOARD_ADP5520) += adp5520-keys.o
obj-$(CONFIG_KEYBOARD_ADP5588) += adp5588-keys.o
obj-$(CONFIG_KEYBOARD_ADP5589) += adp5589-keys.o
drivers/input/keyboard/adc-keys.c
View filediff --git a/drivers/input/keyboard/adc-keys.c b/drivers/input/keyboard/adc-keys.c
new file mode 100644
index 0000000..f8cf2cc
--- /dev/null
+++ b/drivers/input/keyboard/adc-keys.c
@@ -0,0 +1,210 @@
+/*
+ * Input driver for resistor ladder connected on ADC
+ *
+ * Copyright (c) 2016 Alexandre Belloni
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/iio/consumer.h>
+#include <linux/iio/types.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+
+struct adc_keys_button {
+ u32 voltage;
+ u32 keycode;
+};
+
+struct adc_keys_state {
+ struct iio_channel *channel;
+ u32 num_keys;
+ u32 last_key;
+ u32 keyup_voltage;
+ const struct adc_keys_button *map;
+};
+
+static void adc_keys_poll(struct input_polled_dev *dev)
+{
+ struct adc_keys_state *st = dev->private;
+ int i, value, ret;
+ u32 diff, closest = 0xffffffff;
+ int keycode = 0;
+
+ ret = iio_read_channel_processed(st->channel, &value);
+ if (unlikely(ret < 0)) {
+ /* Forcibly release key if any was pressed */
+ value = st->keyup_voltage;
+ } else {
+ for (i = 0; i < st->num_keys; i++) {
+ diff = abs(st->map[i].voltage - value);
+ if (diff < closest) {
+ closest = diff;
+ keycode = st->map[i].keycode;
+ }
+ }
+ }
+
+ if (abs(st->keyup_voltage - value) < closest)
+ keycode = 0;
+
+ if (st->last_key && st->last_key != keycode)
+ input_report_key(dev->input, st->last_key, 0);
+
+ if (keycode)
+ input_report_key(dev->input, keycode, 1);
+
+ input_sync(dev->input);
+ st->last_key = keycode;
+}
+
+static int adc_keys_load_keymap(struct device *dev, struct adc_keys_state *st)
+{
+ struct adc_keys_button *map;
+ struct fwnode_handle *child;
+ int i;
+
+ st->num_keys = device_get_child_node_count(dev);
+ if (st->num_keys == 0) {
+ dev_err(dev, "keymap is missing\n");
+ return -EINVAL;
+ }
+
+ map = devm_kmalloc_array(dev, st->num_keys, sizeof(*map), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ i = 0;
+ device_for_each_child_node(dev, child) {
+ if (fwnode_property_read_u32(child, "press-threshold-microvolt",
+ &map[i].voltage)) {
+ dev_err(dev, "Key with invalid or missing voltage\n");
+ fwnode_handle_put(child);
+ return -EINVAL;
+ }
+ map[i].voltage /= 1000;
+
+ if (fwnode_property_read_u32(child, "linux,code",
+ &map[i].keycode)) {
+ dev_err(dev, "Key with invalid or missing linux,code\n");
+ fwnode_handle_put(child);
+ return -EINVAL;
+ }
+
+ i++;
+ }
+
+ st->map = map;
+ return 0;
+}
+
+static int adc_keys_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct adc_keys_state *st;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ enum iio_chan_type type;
+ int i, value;
+ int error;
+
+ st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);
+ if (!st)
+ return -ENOMEM;
+
+ st->channel = devm_iio_channel_get(dev, "buttons");
+ if (IS_ERR(st->channel))
+ return PTR_ERR(st->channel);
+
+ if (!st->channel->indio_dev)
+ return -ENXIO;
+
+ error = iio_get_channel_type(st->channel, &type);
+ if (error < 0)
+ return error;
+
+ if (type != IIO_VOLTAGE) {
+ dev_err(dev, "Incompatible channel type %d\n", type);
+ return -EINVAL;
+ }
+
+ if (device_property_read_u32(dev, "keyup-threshold-microvolt",
+ &st->keyup_voltage)) {
+ dev_err(dev, "Invalid or missing keyup voltage\n");
+ return -EINVAL;
+ }
+ st->keyup_voltage /= 1000;
+
+ error = adc_keys_load_keymap(dev, st);
+ if (error)
+ return error;
+
+ platform_set_drvdata(pdev, st);
+
+ poll_dev = devm_input_allocate_polled_device(dev);
+ if (!poll_dev) {
+ dev_err(dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ if (!device_property_read_u32(dev, "poll-interval", &value))
+ poll_dev->poll_interval = value;
+
+ poll_dev->poll = adc_keys_poll;
+ poll_dev->private = st;
+
+ input = poll_dev->input;
+
+ input->name = pdev->name;
+ input->phys = "adc-keys/input0";
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < st->num_keys; i++)
+ __set_bit(st->map[i].keycode, input->keybit);
+
+ if (device_property_read_bool(dev, "autorepeat"))
+ __set_bit(EV_REP, input->evbit);
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ dev_err(dev, "Unable to register input device: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id adc_keys_of_match[] = {
+ { .compatible = "adc-keys", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, adc_keys_of_match);
+#endif
+
+static struct platform_driver __refdata adc_keys_driver = {
+ .driver = {
+ .name = "adc_keys",
+ .of_match_table = of_match_ptr(adc_keys_of_match),
+ },
+ .probe = adc_keys_probe,
+};
+module_platform_driver(adc_keys_driver);
+
+MODULE_AUTHOR("Alexandre Belloni <[email protected]>");
+MODULE_DESCRIPTION("Input driver for resistor ladder connected on ADC");
+MODULE_LICENSE("GPL v2");
drivers/input/keyboard/jornada720_kbd.c
View filediff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
index 421d9c5..1277c39 100644
--- a/drivers/input/keyboard/jornada720_kbd.c
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -25,8 +25,6 @@
#include <linux/slab.h>
#include <mach/jornada720.h>
-#include <mach/hardware.h>
-#include <mach/irqs.h>
MODULE_AUTHOR("Kristoffer Ericson <[email protected]>");
MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver");
@@ -66,10 +64,8 @@ static irqreturn_t jornada720_kbd_interrupt(int irq, void *dev_id)
jornada_ssp_start();
if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) {
- printk(KERN_DEBUG
- "jornada720_kbd: "
- "GetKeycode command failed with ETIMEDOUT, "
- "flushed bus\n");
+ dev_dbg(&pdev->dev,
+ "GetKeycode command failed with ETIMEDOUT, flushed bus\n");
} else {
/* How many keycodes are waiting for us? */
count = jornada_ssp_byte(TXDUMMY);
@@ -97,14 +93,16 @@ static int jornada720_kbd_probe(struct platform_device *pdev)
{
struct jornadakbd *jornadakbd;
struct input_dev *input_dev;
- int i, err;
+ int i, err, irq;
- jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!jornadakbd || !input_dev) {
- err = -ENOMEM;
- goto fail1;
- }
+ irq = platform_get_irq(pdev, 0);
+ if (irq <= 0)
+ return irq < 0 ? irq : -EINVAL;
+
+ jornadakbd = devm_kzalloc(&pdev->dev, sizeof(*jornadakbd), GFP_KERNEL);
+ input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!jornadakbd || !input_dev)
+ return -ENOMEM;
platform_set_drvdata(pdev, jornadakbd);
@@ -127,40 +125,16 @@ static int jornada720_kbd_probe(struct platform_device *pdev)
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
- err = request_irq(IRQ_GPIO0,
- jornada720_kbd_interrupt,
- IRQF_TRIGGER_FALLING,
- "jornadakbd", pdev);
+ err = devm_request_irq(&pdev->dev, irq, jornada720_kbd_interrupt,
+ IRQF_TRIGGER_FALLING, "jornadakbd", pdev);
if (err) {
- printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n");
- goto fail1;
+ dev_err(&pdev->dev, "unable to grab IRQ%d: %d\n", irq, err);
+ return err;
}
- err = input_register_device(jornadakbd->input);
This diff is incomplete. Download the complete patch.
drivers/input/keyboard/snvs_pwrkey.c
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drivers/input/misc/Kconfig
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drivers/input/misc/Makefile
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drivers/input/misc/gpio_decoder.c
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drivers/input/misc/max77693-haptic.c
View fileThis diff is incomplete. Download the complete patch.
drivers/input/misc/tps65218-pwrbutton.c
View fileThis diff is incomplete. Download the complete patch.
drivers/input/mouse/elan_i2c_smbus.c
View fileThis diff is incomplete. Download the complete patch.
drivers/input/mouse/focaltech.c
View fileThis diff is incomplete. Download the complete patch.
drivers/input/mouse/psmouse-base.c
View fileThis diff is incomplete. Download the complete patch.
drivers/input/serio/serport.c
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drivers/input/tablet/pegasus_notetaker.c
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drivers/input/touchscreen/Kconfig
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drivers/input/touchscreen/Makefile
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drivers/input/touchscreen/edt-ft5x06.c
View fileThis diff is incomplete. Download the complete patch.
drivers/input/touchscreen/ektf2127.c
View fileThis diff is incomplete. Download the complete patch.
drivers/input/touchscreen/elants_i2c.c
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drivers/input/touchscreen/ft6236.c
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drivers/input/touchscreen/jornada720_ts.c
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drivers/input/touchscreen/mc13783_ts.c
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drivers/input/touchscreen/pixcir_i2c_ts.c
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drivers/input/touchscreen/wdt87xx_i2c.c
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drivers/input/touchscreen/wm97xx-core.c
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