From: Mikita Lipski <[email protected]>

This change fixes the deadlock when unloading the driver with displays
connected.

Signed-off-by: Mikita Lipski <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 65584f6..b4911911 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2081,9 +2081,12 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
 
        DRM_INFO("amdgpu: finishing device.\n");
        adev->shutdown = true;
-       if (adev->mode_info.mode_config_initialized)
-               drm_crtc_force_disable_all(adev->ddev);
-
+       if (adev->mode_info.mode_config_initialized){
+               if (!amdgpu_device_has_dc_support(adev))
+                       drm_crtc_force_disable_all(adev->ddev);
+               else
+                       drm_atomic_helper_shutdown(adev->ddev);
+       }
        amdgpu_ib_pool_fini(adev);
        amdgpu_fence_driver_fini(adev);
        amdgpu_fbdev_fini(adev);
-- 
2.7.4

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