Merge back earlier ACPI backlight material for 3.19-rc1. (667ae4ee) · Commits · e / devices / android_kernel_samsung_universal8895

drivers/acpi/video.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -1681,6 +1681,19 @@ static void acpi_video_dev_register_backlight(struct acpi_video_device *device)
		printk(KERN_ERR PREFIX "Create sysfs link\n");
		}

		static void acpi_video_run_bcl_for_osi(struct acpi_video_bus *video)
		{
		struct acpi_video_device *dev;
		union acpi_object *levels;

		mutex_lock(&video->device_list_lock);
		list_for_each_entry(dev, &video->video_device_list, entry) {
		if (!acpi_video_device_lcd_query_levels(dev, &levels))
		kfree(levels);
		}
		mutex_unlock(&video->device_list_lock);
		}

		static int acpi_video_bus_register_backlight(struct acpi_video_bus *video)
		{
		struct acpi_video_device *dev;
		@@ -1688,6 +1701,8 @@ static int acpi_video_bus_register_backlight(struct acpi_video_bus *video)
		if (video->backlight_registered)
		return 0;

		acpi_video_run_bcl_for_osi(video);

		if (!acpi_video_verify_backlight_support())
		return 0;