From: Stylon Wang Date: Thu, 5 Oct 2023 12:25:10 +0000 (+0800) Subject: drm/amd/display: Disable virtual links X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b22c336268e477e3e8fc21e7d6b18fa8c4cd1f9a;p=linux.git drm/amd/display: Disable virtual links [Why] This could work around the issue with DP tunneling producing a NULL pointer dereference. [How] Disable the virtual links. Reviewed-by: Tom Chung Acked-by: Tom Chung Signed-off-by: Stylon Wang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index c12dfe7acb3e2..c9a272d960a12 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1713,7 +1713,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) /* Enable DWB for tested platforms only */ if (adev->ip_versions[DCE_HWIP][0] >= IP_VERSION(3, 0, 0)) - init_data.num_virtual_links = 1; + init_data.num_virtual_links = 0; INIT_LIST_HEAD(&adev->dm.da_list);