drm/amd/powerplay: check whether enable dpm in powerplay.

Change-Id: I0a2dbf8ef7d4a3e9788fe211fc5964dd2487c519
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
This commit is contained in:
Rex Zhu 2015-11-23 14:50:10 +08:00 • committed by Alex Deucher
commit 1ea6c1e8e4