Commit abfa57e1 authored by Corentin Chary's avatar Corentin Chary Committed by Len Brown
Browse files

asus-laptop: Add *_led_get() functions 



Add support for getting led brightness directly from
the hardware. Currently we don't need it, but it is needed
to support keyboard backlight/led.

Signed-off-by: default avatarCorentin Chary <corentincj@iksaif.net>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 1d4a3800

drivers/platform/x86/asus-laptop.c

+8 −0
Original line number Diff line number Diff line
@@ -246,12 +246,15 @@ static struct workqueue_struct *led_workqueue; 
#define ASUS_LED(object, ledname)					\

	static void object##_led_set(struct led_classdev *led_cdev,	\

				     enum led_brightness value);	\

	static enum led_brightness object##_led_get(			\

		struct led_classdev *led_cdev);				\

	static void object##_led_update(struct work_struct *ignored);	\

	static int object##_led_wk;					\

	static DECLARE_WORK(object##_led_work, object##_led_update);	\

	static struct led_classdev object##_led = {			\

		.name           = "asus::" ledname,			\

		.brightness_set = object##_led_set,			\

		.brightness_get = object##_led_get,			\

	}



ASUS_LED(mled, "mail");
@@ -399,6 +402,11 @@ static void write_status(acpi_handle handle, int out, int mask) 
	{								\

		int value = object##_led_wk;				\

		write_status(object##_set_handle, value, (mask));	\

	}								\

	static enum led_brightness object##_led_get(			\

		struct led_classdev *led_cdev)				\

	{								\

		return led_cdev->brightness;				\

	}



ASUS_LED_HANDLER(mled, MLED_ON);

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