[PATCH 01/12] drm/amdgpu: when dpm disabled, also can enable uvd cg/pg.

[Rex Zhu]

Change-Id: I69ad5568113dbda43fcf414c4bc2e3ff3c0116fb
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index ed73015..02b8613 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -1113,6 +1113,11 @@ static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
 			amdgpu_dpm_enable_uvd(adev, false);
 		} else {
 			amdgpu_asic_set_uvd_clocks(adev, 0, 0);
+			/* shutdown the UVD block */
+			amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+							    AMD_PG_STATE_GATE);
+			amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+							    AMD_CG_STATE_GATE);
 		}
 	} else {
 		schedule_delayed_work(&adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
@@ -1129,6 +1134,10 @@ void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
 			amdgpu_dpm_enable_uvd(adev, true);
 		} else {
 			amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
+			amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+							    AMD_CG_STATE_UNGATE);
+			amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+							    AMD_PG_STATE_UNGATE);
 		}
 	}
 }
-- 
1.9.1