drm/amdgpu: Notify sbios device ready before send request
authorRex Zhu <Rex.Zhu@amd.com>
Tue, 27 Feb 2018 10:20:53 +0000 (18:20 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 15 Mar 2018 09:54:31 +0000 (10:54 +0100)
commit755e5527e57faf7e90d7300c4ed4350505d45277
tree7f0a77e39fc41862c00105e25052e79dad207010
parent20f3ff9738c04226209f606e239ad013e95f43b6
drm/amdgpu: Notify sbios device ready before send request

commit 1bced75f4ab04bec55aecb57d99435dc6d0ae5a0 upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c