[PATCH v3 1/2] dt-bindings: net: dsa: add new mdio property

[Luiz Angelo Daros de Luca]

The optional mdio property will be used by dsa switch to configure
slave_mii_bus when the driver does not allocate it during setup.

Some drivers already offer/require a similar property but, in some
cases, they rely on a compatible string to identify the mdio bus node.
Each subdriver might decide to keep existing approach or migrate to this
new common property.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@xxxxxxxxx>
---
 Documentation/devicetree/bindings/net/dsa/dsa.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/dsa.yaml b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
index b9d48e357e77..f9aa09052785 100644
--- a/Documentation/devicetree/bindings/net/dsa/dsa.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
@@ -32,6 +32,12 @@ properties:
       (single device hanging off a CPU port) must not specify this property
     $ref: /schemas/types.yaml#/definitions/uint32-array
 
+  mdio:
+    unevaluatedProperties: false
+    description:
+      Container of PHY and devices on the switches MDIO bus.
+    $ref: /schemas/net/mdio.yaml#
+
 patternProperties:
   "^(ethernet-)?ports$":
     type: object
-- 
2.35.1