drm/radeon: support backlight control for UNIPHY3

[ Upstream commit d3200be6c4 ]

Same interface as other UNIPHY blocks

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
This commit is contained in:
Alex Deucher 2016-07-08 17:27:04 -04:00 • committed by Sasha Levin
commit dc31456f18