# \[PATCH net-next 2/4\] dt-bindings: net: dsa: inherit the ethernet-controller DT schema

- From: Vladimir Oltean \<vladimir.oltean@nxp.com\>
- Date: 2021-10-18 19:30:46 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/10/1546233
- Thread: https://ratatoskr.run/netdev/2021/10/1546230/t.md

```text
Since a switch is basically a bunch of Ethernet controllers, just
inherit the common schema for one to get stronger type validation of the
properties of a port.

For example, before this change it was valid to have a phy-mode = "xfi"
even if "xfi" is not part of ethernet-controller.yaml, now it is not.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
 Documentation/devicetree/bindings/net/dsa/dsa.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/dsa.yaml b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
index 224cfa45de9a..9cfd08cd31da 100644
--- a/Documentation/devicetree/bindings/net/dsa/dsa.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
@@ -46,6 +46,9 @@ patternProperties:
         type: object
         description: Ethernet switch ports
 
+        allOf:
+          - $ref: "http://devicetree.org/schemas/net/ethernet-controller.yaml#"
+
         properties:
           reg:
             description: Port number
-- 
2.25.1

```