diff --git a/Documentation/devicetree/bindings/net/dsa/dsa.yaml b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
index efaa94cb89ae4af29825c6934f10f176af0624e4..7487ac0d6bb9c3a85c2abbfc4b409ffa949c8cc1 100644
--- a/Documentation/devicetree/bindings/net/dsa/dsa.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
@@ -41,6 +41,8 @@ patternProperties:
       '#size-cells':
         const: 0
 
+    unevaluatedProperties: false
+
     patternProperties:
       "^(ethernet-)?port@[0-9]+$":
         type: object
@@ -48,7 +50,7 @@ patternProperties:
 
         $ref: dsa-port.yaml#
 
-        unevaluatedProperties: false
+        additionalProperties: true
 
 oneOf:
   - required: