diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index f12558960cd88..dbe398f84ffb3 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -114,6 +114,7 @@ properties:
 
       port@1:
         $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
         description: Output endpoint of the controller
         properties:
           endpoint: