UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amdgpu: Notify sbios device ready before send request 

it is required if a platform supports PCIe root complex
core voltage reduction. After receiving this notification,
SBIOS can apply default PCIe root complex power policy.

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>
Cc: stable@vger.kernel.org
This commit is contained in:
Rex Zhu 2018-02-27 18:20:53 +08:00 committed by Alex Deucher
parent 545b0bcde7
commit 1bced75f4a
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
View File

@ -540,6 +540,9 @@ int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev,
size_t size; size_t size;
u32 retry = 3; u32 retry = 3;
if (amdgpu_acpi_pcie_notify_device_ready(adev))
return -EINVAL;
/* Get the device handle */ /* Get the device handle */
handle = ACPI_HANDLE(&adev->pdev->dev); handle = ACPI_HANDLE(&adev->pdev->dev);
if (!handle) if (!handle)