From: Oleksij Rempel linux@rempel-privat.de
[ Upstream commit aca234f6378864d85514be558746c0ea6eabfa8e ]
Asus Zenbook ux31a is providing ACPI0008 interface for ALS (Ambient Light Sensor), which is accessible for OS => Win 7. This sensor can be used with iio/acpi-als driver. Since it is disabled by default, we should use asus-wmi interface to enable it.
Signed-off-by: Oleksij Rempel linux@rempel-privat.de Signed-off-by: Darren Hart dvhart@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/asus-wmi.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index a2174f01d3122..2dee91537123e 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -117,6 +117,7 @@ MODULE_LICENSE("GPL"); #define ASUS_WMI_DEVID_LED6 0x00020016
/* Backlight and Brightness */ +#define ASUS_WMI_DEVID_ALS_ENABLE 0x00050001 /* Ambient Light Sensor */ #define ASUS_WMI_DEVID_BACKLIGHT 0x00050011 #define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012 #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021 @@ -1759,6 +1760,7 @@ 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); +ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -1785,6 +1787,7 @@ static struct attribute *platform_attributes[] = { &dev_attr_cardr.attr, &dev_attr_touchpad.attr, &dev_attr_lid_resume.attr, + &dev_attr_als_enable.attr, NULL };
@@ -1805,6 +1808,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj, devid = ASUS_WMI_DEVID_TOUCHPAD; else if (attr == &dev_attr_lid_resume.attr) devid = ASUS_WMI_DEVID_LID_RESUME; + else if (attr == &dev_attr_als_enable.attr) + devid = ASUS_WMI_DEVID_ALS_ENABLE;
if (devid != -1) ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);