diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 97b66b86ad8e1f3c8a720ae96ee257e6f5b327d2..f94201b6e8821bd06fb53a0d437823e9f7ecc8b8 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -752,6 +752,7 @@ static const struct panel_desc hannstar_hsd100pxn1 = {
 		.width = 203,
 		.height = 152,
 	},
+	.bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG,
 };
 
 static const struct drm_display_mode hitachi_tx23d38vm0caa_mode = {