projects/linux·commit 7d3d09b0

Merge branch 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86

7d3d09b0 · Linus Torvalds <[email protected]> · 2012-07-30 11:54:53 -07:00

Pull x86 platform driver updates from Matthew Garrett:
 "Nothing overly dramatic here - improved support for the Classmate,
  some random small fixes and a rework of backlight management to deal
  with some of the more awkward cases."

* 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86:
  thinkpad_acpi: Free hotkey_keycode_map after unregistering tpacpi_inputdev
  thinkpad_acpi: Fix a memory leak during module exit
  thinkpad_acpi: Flush the workqueue before freeing tpacpi_leds
  dell-laptop: Add 6 machines to touchpad led quirk
  ACER: Fix Smatch double-free issue
  ACER: Fix up sparse warning
  asus-nb-wmi: add some video toggle keys
  asus-nb-wmi: add wapf quirk for ASUS machines
  classmate-laptop: Fix extra keys hardware id.
  classmate-laptop: Add support for Classmate V4 accelerometer.
  asus-wmi: enable resume on lid open
  asus-wmi: control backlight power through WMI, not ACPI
  samsung-laptop: support R40/R41
  acpi/video_detect: blacklist samsung x360
  samsung-laptop: X360 ACPI backlight device is broken
  drivers-platform-x86: use acpi_video_dmi_promote_vendor()
  acpi: add a way to promote/demote vendor backlight drivers
  ACER: Add support for accelerometer sensor
  asus-wmi: use ASUS_WMI_METHODID_DSTS2 as default DSTS ID.
Commit
7d3d09b01a028e9dd1282149fdcd2a6e0edd73e4
Parents
287dc4b7 · 00d39597

Merge commit. Changes below are compared with the first parent: 287dc4b7.

Changes

13 files changed · +864 −34

FileStatusAddDelContent
Documentation/ABI/testing/sysfs-platform-asus-wmimodified+7−0View file
drivers/acpi/video_detect.cmodified+58−2View file
drivers/platform/x86/acer-wmi.cmodified+146−7View file
drivers/platform/x86/apple-gmux.cmodified+6−0View file
drivers/platform/x86/asus-nb-wmi.cmodified+105−3View file
drivers/platform/x86/asus-wmi.cmodified+17−6View file
drivers/platform/x86/asus-wmi.hmodified+1−0View file
drivers/platform/x86/classmate-laptop.cmodified+402−3View file
drivers/platform/x86/dell-laptop.cmodified+54−0View file
drivers/platform/x86/eeepc-wmi.cmodified+24−1View file
drivers/platform/x86/samsung-laptop.cmodified+31−10View file
drivers/platform/x86/thinkpad_acpi.cmodified+3−2View file
include/linux/acpi.hmodified+10−0View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/ABI/testing/sysfs-platform-asus-wmi

View file
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 2e7df91..019e1e2 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -29,3 +29,10 @@ KernelVersion: 2.6.39
Contact: "Corentin Chary" <[email protected]>
Description:
Control the card touchpad. 1 means on, 0 means off.
+
+What: /sys/devices/platform/<platform>/lid_resume
+Date: May 2012
+KernelVersion: 3.5
+Contact: "AceLan Kao" <[email protected]>
+Description:
+ Resume on lid open. 1 means on, 0 means off.

drivers/acpi/video_detect.c

View file
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 45d8097..b728880 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -132,6 +132,33 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
return AE_OK;
}
+/* Force to use vendor driver when the ACPI device is known to be
+ * buggy */
+static int video_detect_force_vendor(const struct dmi_system_id *d)
+{
+ acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
+ return 0;
+}
+
+static struct dmi_system_id video_detect_dmi_table[] = {
+ /* On Samsung X360, the BIOS will set a flag (VDRV) if generic
+ * ACPI backlight device is used. This flag will definitively break
+ * the backlight interface (even the vendor interface) untill next
+ * reboot. It's why we should prevent video.ko from being used here
+ * and we can't rely on a later call to acpi_video_unregister().
+ */
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "X360",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X360"),
+ DMI_MATCH(DMI_BOARD_NAME, "X360"),
+ },
+ },
+ { },
+};
+
/*
* Returns the video capabilities of a specific ACPI graphics device
*
@@ -164,6 +191,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
* ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
*}
*/
+
+ dmi_check_system(video_detect_dmi_table);
} else {
status = acpi_bus_get_device(graphics_handle, &tmp_dev);
if (ACPI_FAILURE(status)) {
@@ -182,8 +211,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
}
EXPORT_SYMBOL(acpi_video_get_capabilities);
-/* Returns true if video.ko can do backlight switching */
-int acpi_video_backlight_support(void)
+static void acpi_video_caps_check(void)
{
/*
* We must check whether the ACPI graphics device is physically plugged
@@ -191,6 +219,34 @@ int acpi_video_backlight_support(void)
*/
if (!acpi_video_caps_checked)
acpi_video_get_capabilities(NULL);
+}
+
+/* Promote the vendor interface instead of the generic video module.
+ * This function allow DMI blacklists to be implemented by externals
+ * platform drivers instead of putting a big blacklist in video_detect.c
+ * After calling this function you will probably want to call
+ * acpi_video_unregister() to make sure the video module is not loaded
+ */
+void acpi_video_dmi_promote_vendor(void)
+{
+ acpi_video_caps_check();
+ acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
+}
+EXPORT_SYMBOL(acpi_video_dmi_promote_vendor);
+
+/* To be called when a driver who previously promoted the vendor
+ * interface */
+void acpi_video_dmi_demote_vendor(void)
+{
+ acpi_video_caps_check();
+ acpi_video_support &= ~ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
+}
+EXPORT_SYMBOL(acpi_video_dmi_demote_vendor);
+
+/* Returns true if video.ko can do backlight switching */
+int acpi_video_backlight_support(void)
+{
+ acpi_video_caps_check();
/* First check for boot param -> highest prio */
if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR)

drivers/platform/x86/acer-wmi.c

View file
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index c8f40c9..3782e1c 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -95,6 +95,7 @@ MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
enum acer_wmi_event_ids {
WMID_HOTKEY_EVENT = 0x1,
+ WMID_ACCEL_EVENT = 0x5,
};
static const struct key_entry acer_wmi_keymap[] = {
@@ -130,6 +131,7 @@ static const struct key_entry acer_wmi_keymap[] = {
};
static struct input_dev *acer_wmi_input_dev;
+static struct input_dev *acer_wmi_accel_dev;
struct event_return_value {
u8 function;
@@ -200,6 +202,7 @@ struct hotkey_function_type_aa {
#define ACER_CAP_BLUETOOTH (1<<2)
#define ACER_CAP_BRIGHTNESS (1<<3)
#define ACER_CAP_THREEG (1<<4)
+#define ACER_CAP_ACCEL (1<<5)
#define ACER_CAP_ANY (0xFFFFFFFF)
/*
@@ -1399,6 +1402,60 @@ static void acer_backlight_exit(void)
}
/*
+ * Accelerometer device
+ */
+static acpi_handle gsensor_handle;
+
+static int acer_gsensor_init(void)
+{
+ acpi_status status;
+ struct acpi_buffer output;
+ union acpi_object out_obj;
+
+ output.length = sizeof(out_obj);
+ output.pointer = &out_obj;
+ status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
+ if (ACPI_FAILURE(status))
+ return -1;
+
+ return 0;
+}
+
+static int acer_gsensor_open(struct input_dev *input)
+{
+ return acer_gsensor_init();
+}
+
+static int acer_gsensor_event(void)
+{
+ acpi_status status;
+ struct acpi_buffer output;
+ union acpi_object out_obj[5];
+
+ if (!has_cap(ACER_CAP_ACCEL))
+ return -1;
+
+ output.length = sizeof(out_obj);
+ output.pointer = out_obj;
+
+ status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
+ if (ACPI_FAILURE(status))
+ return -1;
+
+ if (out_obj->package.count != 4)
+ return -1;
+
+ input_report_abs(acer_wmi_accel_dev, ABS_X,
+ (s16)out_obj->package.elements[0].integer.value);
+ input_report_abs(acer_wmi_accel_dev, ABS_Y,
+ (s16)out_obj->package.elements[1].integer.value);
+ input_report_abs(acer_wmi_accel_dev, ABS_Z,
+ (s16)out_obj->package.elements[2].integer.value);
+ input_sync(acer_wmi_accel_dev);
+ return 0;
+}
+
+/*
* Rfkill devices
*/
static void acer_rfkill_update(struct work_struct *ignored);
@@ -1673,6 +1730,9 @@ static void acer_wmi_notify(u32 value, void *context)
1, true);
}
break;
+ case WMID_ACCEL_EVENT:
+ acer_gsensor_event();
+ break;
default:
pr_warn("Unknown function number - %d - %d\n",
return_value.function, return_value.key_num);
@@ -1758,6 +1818,73 @@ static int acer_wmi_enable_lm(void)
return status;
}
+static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
+ void *ctx, void **retval)
+{
+ *(acpi_handle *)retval = ah;
+ return AE_OK;
+}
+
+static int __init acer_wmi_get_handle(const char *name, const char *prop,
+ acpi_handle *ah)
+{
+ acpi_status status;
+ acpi_handle handle;
+
+ BUG_ON(!name || !ah);
+
+ handle = NULL;
+ status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
+ (void *)name, &handle);
+
+ if (ACPI_SUCCESS(status)) {
+ *ah = handle;
+ return 0;
+ } else {
+ return -ENODEV;
+ }
+}
+
+static int __init acer_wmi_accel_setup(void)
+{
+ int err;
+
+ err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
+ if (err)
+ return err;
+
+ interface->capability |= ACER_CAP_ACCEL;
+
+ acer_wmi_accel_dev = input_allocate_device();
+ if (!acer_wmi_accel_dev)
+ return -ENOMEM;
+
+ acer_wmi_accel_dev->open = acer_gsensor_open;
+
+ acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
+ acer_wmi_accel_dev->phys = "wmi/input1";
+ acer_wmi_accel_dev->id.bustype = BUS_HOST;
+ acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
+ input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
+ input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
+ input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
+
+ err = input_register_device(acer_wmi_accel_dev);
+ if (err)
+ goto err_free_dev;
+
+ return 0;
+
+err_free_dev:
+ input_free_device(acer_wmi_accel_dev);
+ return err;
+}
+
+static void acer_wmi_accel_destroy(void)
+{
+ input_unregister_device(acer_wmi_accel_dev);
+}
+
static int __init acer_wmi_input_setup(void)
{
acpi_status status;
@@ -1912,6 +2039,9 @@ static int acer_resume(struct device *dev)
if (has_cap(ACER_CAP_BRIGHTNESS))
set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
+ if (has_cap(ACER_CAP_ACCEL))
+ acer_gsensor_init();
+
return 0;
}
@@ -2060,14 +2190,16 @@ static int __init acer_wmi_init(void)
set_quirks();
+ if (dmi_check_system(video_vendor_dmi_table))
+ acpi_video_dmi_promote_vendor();
if (acpi_video_backlight_support()) {
- if (dmi_check_system(video_vendor_dmi_table)) {
- acpi_video_unregister();
- } else {
- interface->capability &= ~ACER_CAP_BRIGHTNESS;
- pr_info("Brightness must be controlled by "
- "acpi video driver\n");
- }
+ interface->capability &= ~ACER_CAP_BRIGHTNESS;
+ pr_info("Brightness must be controlled by acpi video driver\n");
+ } else {
+#ifdef CONFIG_ACPI_VIDEO
+ pr_info("Disabling ACPI video driver\n");
+ acpi_video_unregister();
+#endif
}
if (wmi_has_guid(WMID_GUID3)) {
@@ -2090,6 +2222,8 @@ static int __init acer_wmi_init(void)
return err;
}
+ acer_wmi_accel_setup();
+
err = platform_driver_register(&acer_platform_driver);
if (err) {
pr_err("Unable to register platform driver\n");
@@ -2133,6 +2267,8 @@ error_device_alloc:
error_platform_register:
if (wmi_has_guid(ACERWMID_EVENT_GUID))
acer_wmi_input_destroy();
+ if (has_cap(ACER_CAP_ACCEL))
+ acer_wmi_accel_destroy();
return err;
}
@@ -2142,6 +2278,9 @@ static void __exit acer_wmi_exit(void)
if (wmi_has_guid(ACERWMID_EVENT_GUID))
acer_wmi_input_destroy();
+ if (has_cap(ACER_CAP_ACCEL))
+ acer_wmi_accel_destroy();
+
remove_sysfs(acer_platform_device);
remove_debugfs();
platform_device_unregister(acer_platform_device);

drivers/platform/x86/apple-gmux.c

View file
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 694a15a..905fa01 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -193,7 +193,10 @@ static int __devinit gmux_probe(struct pnp_dev *pnp,
* backlight control and supports more levels than other options.
* Disable the other backlight choices.
*/
+ acpi_video_dmi_promote_vendor();
+#ifdef CONFIG_ACPI_VIDEO
acpi_video_unregister();
+#endif
apple_bl_unregister();
return 0;
@@ -213,7 +216,10 @@ static void __devexit gmux_remove(struct pnp_dev *pnp)
release_region(gmux_data->iostart, gmux_data->iolen);
kfree(gmux_data);
+ acpi_video_dmi_demote_vendor();
+#ifdef CONFIG_ACPI_VIDEO
acpi_video_register();
+#endif
apple_bl_register();
}

drivers/platform/x86/asus-nb-wmi.c

View file
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 99a30b5..6b0ebde 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -26,6 +26,7 @@
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/fb.h>
+#include <linux/dmi.h>
#include "asus-wmi.h"
@@ -48,18 +49,115 @@ MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);
* 1 | Hardware | Software
* 4 | Software | Software
*/
-static uint wapf;
+static int wapf = -1;
module_param(wapf, uint, 0444);
MODULE_PARM_DESC(wapf, "WAPF value");
+static struct quirk_entry *quirks;
+
static struct quirk_entry quirk_asus_unknown = {
+ .wapf = 0,
+};
+
+static struct quirk_entry quirk_asus_x401u = {
+ .wapf = 4,
+};
+
+static int dmi_matched(const struct dmi_system_id *dmi)
+{
+ quirks = dmi->driver_data;
+ return 1;
+}
+
+static struct dmi_system_id asus_quirks[] = {
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X401U",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X401A1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X501U",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X501A1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X55A",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X55C",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X55U",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {
+ .callback = dmi_matched,
+ .ident = "ASUSTeK COMPUTER INC. X55VD",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
+ },
+ .driver_data = &quirk_asus_x401u,
+ },
+ {},
};
static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
{
- driver->quirks = &quirk_asus_unknown;
- driver->quirks->wapf = wapf;
+ quirks = &quirk_asus_unknown;
+ dmi_check_system(asus_quirks);
+
+ driver->quirks = quirks;
driver->panel_power = FB_BLANK_UNBLANK;
+
+ /* overwrite the wapf setting if the wapf paramater is specified */
+ if (wapf != -1)
+ quirks->wapf = wapf;
+ else
+ wapf = quirks->wapf;
}
static const struct key_entry asus_nb_wmi_keymap[] = {
@@ -94,6 +192,10 @@ static const struct key_entry asus_nb_wmi_keymap[] = {
{ KE_KEY, 0x8A, { KEY_PROG1 } },
{ KE_KEY, 0x95, { KEY_MEDIA } },
{ KE_KEY, 0x99, { KEY_PHONE } },
+ { KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
+ { KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
+ { KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
+ { KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
{ KE_KEY, 0xb5, { KEY_CALC } },
{ KE_KEY, 0xc4, { KEY_KBDILLUMUP } },
{ KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } },

drivers/platform/x86/asus-wmi.c

View file
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 77aadde..c7a36f6 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -47,6 +47,9 @@
#include <linux/thermal.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#ifdef CONFIG_ACPI_VIDEO
+#include <acpi/video.h>
+#endif
#include "asus-wmi.h"
@@ -136,6 +139,9 @@ MODULE_LICENSE("GPL");
/* Power */
#define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
+/* Deep S3 / Resume on LID open */
+#define ASUS_WMI_DEVID_LID_RESUME 0x00120031
+
/* DSTS masks */
#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
@@ -1365,6 +1371,7 @@ static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
+ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
@@ -1390,6 +1397,7 @@ static struct attribute *platform_attributes[] = {
&dev_attr_camera.attr,
&dev_attr_cardr.attr,
&dev_attr_touchpad.attr,
+ &dev_attr_lid_resume.attr,
NULL
};
@@ -1408,6 +1416,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
devid = ASUS_WMI_DEVID_CARDREADER;
else if (attr == &dev_attr_touchpad.attr)
devid = ASUS_WMI_DEVID_TOUCHPAD;
+ else if (attr == &dev_attr_lid_resume.attr)
+ devid = ASUS_WMI_DEVID_LID_RESUME;
if (devid != -1)
ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
@@ -1467,14 +1477,9 @@ static int asus_wmi_platform_init(struct asus_wmi *asus)
*/
if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
asus->dsts_id = ASUS_WMI_METHODID_DSTS;
- else if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS2, 0, 0, NULL))
+ else
asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
- if (!asus->dsts_id) {
- pr_err("Can't find DSTS");
- return -ENODEV;
- }
-
/* CWAP allow to define the behavior of the Fn+F2 key,
* this method doesn't seems to be present on Eee PCs */
if (asus->driver->quirks->wapf >= 0)
@@ -1681,7 +1686,13 @@ static int asus_wmi_add(struct platform_device *pdev)
if (err)
goto fail_rfkill;
+ if (asus->driver->quirks->wmi_backlight_power)
+ acpi_video_dmi_promote_vendor();
if (!acpi_video_backlight_support()) {
+#ifdef CONFIG_ACPI_VIDEO
+ pr_info("Disabling ACPI video driver\n");
+ acpi_video_unregister();
+#endif
err = asus_wmi_backlight_init(asus);
if (err && err != -ENODEV)
goto fail_backlight;

drivers/platform/x86/asus-wmi.h

View file
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index d43b667..9c1da8b 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -39,6 +39,7 @@ struct quirk_entry {
bool hotplug_wireless;
bool scalar_panel_brightness;
bool store_backlight_power;
+ bool wmi_backlight_power;
int wapf;
};

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drivers/platform/x86/classmate-laptop.c

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drivers/platform/x86/dell-laptop.c

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drivers/platform/x86/eeepc-wmi.c

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drivers/platform/x86/samsung-laptop.c

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drivers/platform/x86/thinkpad_acpi.c

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include/linux/acpi.h

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