tree 29d8c7ee9d4979601d65bf16a07b0ee93e4c324b
parent 0b45541df37295e97216f8d45ae583a78ea31416
author Rex Zhu <Rex.Zhu@amd.com> 1459308950 +0800
committer Alex Deucher <alexander.deucher@amd.com> 1462408167 -0400

drm/amd/powerplay: return 0 when interface not implement on some asic.

Don't fail if certain optional interface callbacks are missing.

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