From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 29 Sep 2015 17:53:30 +0000 (-0400)
Subject: drm/amdgpu:  Restore LCD backlight level on resume
X-Git-Tag: omap-for-v4.3/fixes-rc5~47^2~11^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74b3112e95073b351e3b0b9799795bc76f8415fa;p=pandora-kernel.git

drm/amdgpu:  Restore LCD backlight level on resume

Instead of only enabling the backlight (which seems to set it to max
brightness), just re-set the current backlight level, which also takes
care of enabling the backlight if necessary.

Port of radeon commit:
drm/radeon: Restore LCD backlight level on resume (>= R5xx)

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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