diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index faa1c168a6e7dae749a05a7c8e4fc1b89a6be9d3..43a100c0b7850e18bbdc165cd8cb115aa07edc80 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -44,6 +44,10 @@ struct panel_desc {
 
 	unsigned int bpc;
 
+	/**
+	 * @width: width (in millimeters) of the panel's active display area
+	 * @height: height (in millimeters) of the panel's active display area
+	 */
 	struct {
 		unsigned int width;
 		unsigned int height;