drm/amdgpu: fix check in fbdev init

From Alex Deucher
27f8f5219fe4658537ba28fd01657e1062ac3960 in linux 5.15.y/5.15.61

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_fb.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_fb.c
index 43f3762..8e70795 100644 (file)
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_fb.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_fb.c
@@ -379,7 +379,8 @@ int amdgpu_fbdev_init(struct amdgpu_device *adev)
        task_set(&adev->burner_task, amdgpu_burner_cb, adev);
 
        /* disable all the possible outputs/crtcs before entering KMS mode */
-       if (!amdgpu_device_has_dc_support(adev) && !amdgpu_virtual_display)
+       if (!amdgpu_device_has_dc_support(adev) && !amdgpu_virtual_display &&
+           !amdgpu_sriov_vf(adev))
                drm_helper_disable_unused_functions(adev_to_drm(adev));
 
        drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);