Commit 9be1df98 authored by Zhang Rui's avatar Zhang Rui Committed by Richard Purdie

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=12249Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
Signed-off-by: default avatarRichard Purdie <rpurdie@linux.intel.com>
parent 0ec561f4
...@@ -131,10 +131,8 @@ static ssize_t backlight_store_brightness(struct device *dev, ...@@ -131,10 +131,8 @@ static ssize_t backlight_store_brightness(struct device *dev,
else { else {
pr_debug("backlight: set brightness to %lu\n", pr_debug("backlight: set brightness to %lu\n",
brightness); brightness);
if (bd->props.brightness != brightness) {
bd->props.brightness = brightness; bd->props.brightness = brightness;
backlight_update_status(bd); backlight_update_status(bd);
}
rc = count; rc = count;
} }
} }
......
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