diff --git a/Documentation/devicetree/bindings/net/mdio.yaml b/Documentation/devicetree/bindings/net/mdio.yaml
index 12069d0b25c6..24d67074d494 100644
--- a/Documentation/devicetree/bindings/net/mdio.yaml
+++ b/Documentation/devicetree/bindings/net/mdio.yaml
@@ -21,6 +21,12 @@ properties:
   $nodename:
     pattern: "^mdio(@.*)?"
 
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
   reset-gpios:
     maxItems: 1
     description: