[PATCH 5/5] drm/amgpu/acp: Implement set_powergating_state for acp

[Rex Zhu]

so driver can powergate acp block after asic initialized
to save power.

Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index b5b66c3..297a549 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -514,6 +514,12 @@ static int acp_set_clockgating_state(void *handle,
 static int acp_set_powergating_state(void *handle,
 				     enum amd_powergating_state state)
 {
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	bool enable = state == AMD_PG_STATE_GATE ? true : false;
+
+	if (adev->powerplay.pp_funcs->set_powergating_by_smu)
+		amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, enable);
+
 	return 0;
 }
 
-- 
1.9.1