drm/amdgpu: when suspending, if uvd/vce was running. need to cancel delay work.

commit 85cc88f0 upstream.

fix the issue that when resume back, uvd/vce
dpm was disabled and uvd/vce's performace
dropped.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c

@@ -231,6 +231,8 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 	if (i == AMDGPU_MAX_UVD_HANDLES)
 		return 0;
 
+	cancel_delayed_work_sync(&adev->uvd.idle_work);
+
 	hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
 
 	size = amdgpu_bo_size(adev->uvd.vcpu_bo);

drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c

@@ -208,6 +208,7 @@ int amdgpu_vce_suspend(struct amdgpu_device *adev)
 	if (i == AMDGPU_MAX_VCE_HANDLES)
 		return 0;
 
+	cancel_delayed_work_sync(&adev->vce.idle_work);
 	/* TODO: suspending running encoding sessions isn't supported */
 	return -EINVAL;
 }