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From 6fa3d55bcbe5e06ea1d6db7972b35d9ee15a2097 Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Sun, 29 Jul 2018 18:53:02 +0800
Subject: [PATCH 0006/2940] 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>
---
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 b5b66c3d1b43..297a5490ad8c 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;
}
--
2.17.1
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