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drm/amdgpu: fix tonga smu resume 

Need to make sure smu buffers are pinned on resume.  This
matches what Fiji does.

Cc: stable@vger.kernel.org
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-01-14 13:48:24 -05:00
parent e9c5e7402d
commit e160e4db83
1 changed files with 2 additions and 15 deletions
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17
drivers/gpu/drm/amd/amdgpu/tonga_dpm.c
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@ -122,25 +122,12 @@ static int tonga_dpm_hw_fini(void *handle)
static int tonga_dpm_suspend(void *handle)
{
return 0;
return tonga_dpm_hw_fini(handle);
}
static int tonga_dpm_resume(void *handle)
{
int ret;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
mutex_lock(&adev->pm.mutex);
ret = tonga_smu_start(adev);
if (ret) {
DRM_ERROR("SMU start failed\n");
goto fail;
}
fail:
mutex_unlock(&adev->pm.mutex);
return ret;
return tonga_dpm_hw_init(handle);
}
static int tonga_dpm_set_clockgating_state(void *handle,