drm/radeon/dpm: add debugfs support for 7xx/evergreen/btc

This allows you to look at the current DPM state via
debugfs.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-06-28 10:06:26 -04:00
commit bd210d11cd
4 changed files with 39 additions and 0 deletions