tree f2087b3fa9b4c6942686367c4390b4a04b6904c4
parent 67d5ced503db5b44cb82f378c9cb3f0e77a94e7f
author Alex Deucher <alexander.deucher@amd.com> 1372804682 -0400
committer Alex Deucher <alexander.deucher@amd.com> 1373062159 -0400

drm/radeon/dpm: add infrastructure to force performance levels

This allows you to force specific power levels within a power
state.  Due to hardware restrictions between generations, the
interface is limited to the following 3 selections:

auto: all levels enabled
low: forced to the lowest power level
high: forced to the highest power level

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>