tree 027cda0bac22dfd80c2f865f225d5c297ae387c0
parent 4cee6a9057d5e13911f0cb6e143d11dc1a3245dd
author Alex Deucher <alexander.deucher@amd.com> 1445957804 -0400
committer Alex Deucher <alexander.deucher@amd.com> 1446131620 -0400

drm/radeon: fix dpms when driver backlight control is disabled

If driver backlight control is disabled, either by driver
parameter or default per-asic setting, revert to the old behavior.

Fixes a regression in commit:
4281f46ef839050d2ef60348f661eb463c21cc2e

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