drm/radeon: start to document evergreen.c

Still a lot to do.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Alex Deucher 2012-07-17 14:02:42 -04:00 • committed by Christian König
commit 377edc8bbd