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drm/amgpu/acp: Implement set_powergating_state for acp 

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

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2018-07-29 18:53:02 +08:00 committed by Alex Deucher
parent 3a54d2c895
commit c36628d898
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
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@ -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;
}