diff --git a/Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml b/Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
index fe3a3412f093..d2906b4a0f59 100644
--- a/Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
+++ b/Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
@@ -39,7 +39,7 @@ required:
   - compatible
   - reg
 
-unevaluatedProperties: true
+unevaluatedProperties: false
 
 examples:
   - |