drm/amdgpu/sdma4: set sdma clock gating for rn

Add support for SDMA clockgating on RN.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Prike Liang 2019-08-12 15:25:18 -05:00 • committed by Alex Deucher
commit 91c5b6b326