diff --git a/Documentation/devicetree/bindings/display/panel/ronbo,rb070d30.yaml b/Documentation/devicetree/bindings/display/panel/ronbo,rb070d30.yaml
index 04f86e0cbac91..a2dc67a87fa3b 100644
--- a/Documentation/devicetree/bindings/display/panel/ronbo,rb070d30.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ronbo,rb070d30.yaml
@@ -13,6 +13,7 @@ properties:
   compatible:
     const: ronbo,rb070d30
 
+  port: true
   reg:
     maxItems: 1