drm/nouveau: recognise DCB connector type for DP+DVI+VGA DMS-59

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index f3ce34b..cdae563 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -858,6 +858,8 @@
 	case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
 	case DCB_CONNECTOR_LVDS     :
 	case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
+	case DCB_CONNECTOR_DMS59_DP0:
+	case DCB_CONNECTOR_DMS59_DP1:
 	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
 	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
 	case DCB_CONNECTOR_HDMI_0   :
@@ -1002,7 +1004,9 @@
 	     nv_connector->type == DCB_CONNECTOR_DVI_I ||
 	     nv_connector->type == DCB_CONNECTOR_HDMI_0 ||
 	     nv_connector->type == DCB_CONNECTOR_HDMI_1 ||
-	     nv_connector->type == DCB_CONNECTOR_DP)) {
+	     nv_connector->type == DCB_CONNECTOR_DP ||
+	     nv_connector->type == DCB_CONNECTOR_DMS59_DP0 ||
+	     nv_connector->type == DCB_CONNECTOR_DMS59_DP1)) {
 		drm_connector_attach_property(connector,
 					      disp->underscan_property,
 					      UNDERSCAN_OFF);