1 files changed, 31 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3998-drm-amdgpu-dm-mst-Don-t-create-MST-topology-managers.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3998-drm-amdgpu-dm-mst-Don-t-create-MST-topology-managers.patch
new file mode 100644
index 00000000..f0b5c81e
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3998-drm-amdgpu-dm-mst-Don-t-create-MST-topology-managers.patch
@@ -0,0 +1,31 @@
+From 65cb3afc5505559c4ed4b652f50efa04fc0bd82b Mon Sep 17 00:00:00 2001
+From: Lyude Paul <lyude@redhat.com>
+Date: Thu, 26 Sep 2019 18:51:03 -0400
+Subject: [PATCH 3998/4256] drm/amdgpu/dm/mst: Don't create MST topology
+ managers for eDP ports
+
+Reviewed-by: Harry Wentland <harry.wentland@amd.com>
+Signed-off-by: Lyude Paul <lyude@redhat.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+index cfca1924328e..6406b92a1c05 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+@@ -412,6 +412,10 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
+ 	drm_dp_aux_register(&aconnector->dm_dp_aux.aux);
+ 	drm_dp_cec_register_connector(&aconnector->dm_dp_aux.aux,
+ 				      aconnector->base.name, dm->adev->dev);
++
++	if (aconnector->base.connector_type == DRM_MODE_CONNECTOR_eDP)
++		return;
++
+ 	aconnector->mst_mgr.cbs = &dm_mst_cbs;
+ 	drm_dp_mst_topology_mgr_init(
+ 		&aconnector->mst_mgr,
+-- 
+2.17.1
+