drm/amdgpu: refine vce2.0 dpm sequence

start vce first then enable vce dpm.
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>

drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c

@@ -1316,11 +1316,11 @@ void amdgpu_dpm_enable_vce(struct amdgpu_device *adev, bool enable)
 			/* XXX select vce level based on ring/task */
 			adev->pm.dpm.vce_level = AMD_VCE_LEVEL_AC_ALL;
 			mutex_unlock(&adev->pm.mutex);
-			amdgpu_pm_compute_clocks(adev);
-			amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
-							AMD_PG_STATE_UNGATE);
 			amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
 							AMD_CG_STATE_UNGATE);
+			amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
+							AMD_PG_STATE_UNGATE);
+			amdgpu_pm_compute_clocks(adev);
 		} else {
 			amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
 							AMD_PG_STATE_GATE);