Commit 9be1df98 authored Jan 08, 2009 by Zhang Rui Committed by Richard Purdie Jan 08, 2009

bd->props.brightness doesn't reflect the actual backlight level.

Always invoke backlight_update_status when users want to change
the backlight.

For setups where brightness change is an expensive operation,
this could be done in the driver rather than the core.

http://bugzilla.kernel.org/show_bug.cgi?id=12249



Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

parent 0ec561f4

drivers/video/backlight/backlight.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -131,10 +131,8 @@ static ssize_t backlight_store_brightness(struct device *dev,
		else {
		pr_debug("backlight: set brightness to %lu\n",
		brightness);
		if (bd->props.brightness != brightness) {
		bd->props.brightness = brightness;
		backlight_update_status(bd);
		}
		rc = count;
		}
		}