drm/radeon: enable additional power gating features on trinity

TN has some additional powergating features beyond what is
supported on ON/LN.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-02-15 16:26:33 -05:00
commit 8ba104637b
4 changed files with 54 additions and 6 deletions