diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0006-drm-amgpu-acp-Implement-set_powergating_state-for-ac.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0006-drm-amgpu-acp-Implement-set_powergating_state-for-ac.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0006-drm-amgpu-acp-Implement-set_powergating_state-for-ac.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0006-drm-amgpu-acp-Implement-set_powergating_state-for-ac.patch new file mode 100644 index 00000000..e9b8dcd8 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0006-drm-amgpu-acp-Implement-set_powergating_state-for-ac.patch @@ -0,0 +1,36 @@ +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 + |