diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index faa45af48c152480a8ce23111c766e783a1223af..71ae200ac48a062ffe80634bbb842e3446d6f75a 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1418,6 +1418,7 @@ static const struct drm_display_mode boe_nv110wtm_n61_modes[] = {
 		.vsync_start = 1440 + 3,
 		.vsync_end = 1440 + 3 + 6,
 		.vtotal = 1440 + 3 + 6 + 31,
+		.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC,
 	},
 	{
 		.clock = 138500,
@@ -1429,6 +1430,7 @@ static const struct drm_display_mode boe_nv110wtm_n61_modes[] = {
 		.vsync_start = 1440 + 3,
 		.vsync_end = 1440 + 3 + 6,
 		.vtotal = 1440 + 3 + 6 + 31,
+		.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC,
 	},
 };