drm/radeon/sumo: implement support for disable_gfx_power_gating_in_uvd flag

Some asic revisions need to disable PG when UVD is active.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-07-03 15:14:25 -04:00
commit 338a95a955