[PATCH net-next v3 04/13] dt-bindings: net: dsa: renesas,rzn1-a5psw: Disallow ports beyond port@4

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Restrict the A5PSW ethernet-ports node to ports 0 through 4, matching the
hardware configuration of four external ports and one CPU/management port.

Although the schema pattern limits port nodes to port@0 through port@4,
additionalProperties: true allows other port nodes to pass validation.
Set additionalProperties to false and explicitly allow #address-cells
and #size-cells so that ports beyond port@4 are rejected.

Existing in-tree device trees describe only port@0 through port@4 and
are unaffected by this change.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
v2->v3:
- New patch
---
 .../devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml  | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml b/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
index fab6aa6237e9..c5e652c057a9 100644
--- a/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
@@ -61,7 +61,14 @@ properties:
 
   ethernet-ports:
     type: object
-    additionalProperties: true
+    additionalProperties: false
+
+    properties:
+      '#address-cells':
+        const: 1
+      '#size-cells':
+        const: 0
+
     patternProperties:
       "^(ethernet-)?port@[0-4]$":
         type: object
-- 
2.55.0