diff --git a/drivers/video/drm/rockchip_display.c b/drivers/video/drm/rockchip_display.c
index 04938360e4..70fd3fd25a 100644
--- a/drivers/video/drm/rockchip_display.c
+++ b/drivers/video/drm/rockchip_display.c
@@ -1086,6 +1086,8 @@ void rockchip_display_fixup(void *blob)
 		FDT_SET_U32("logo,ymirror", s->logo.ymirror);
 		FDT_SET_U32("video,hdisplay", s->conn_state.mode.hdisplay);
 		FDT_SET_U32("video,vdisplay", s->conn_state.mode.vdisplay);
+		FDT_SET_U32("video,crtc_hsync_end", s->conn_state.mode.crtc_hsync_end);
+		FDT_SET_U32("video,crtc_vsync_end", s->conn_state.mode.crtc_vsync_end);
 		FDT_SET_U32("video,vrefresh",
 			    drm_mode_vrefresh(&s->conn_state.mode));
 		FDT_SET_U32("video,flags", s->conn_state.mode.flags);