From b5dc477245fe4370865a867d205f964a78400910 Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Sun, 29 Jul 2018 18:53:02 +0800 Subject: [PATCH 5062/5725] 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 Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher --- 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 b8228a2..0527bfb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c @@ -512,6 +512,12 @@ 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; } -- 2.7.4