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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/mdio-mux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common MDIO bus multiplexer/switch properties.
+
+maintainers:
+ - Andrew Lunn <andrew@lunn.ch>
+
+description: |+
+ An MDIO bus multiplexer/switch will have several child busses that are
+ numbered uniquely in a device dependent manner. The nodes for an MDIO
+ bus multiplexer/switch will have one child node for each child bus.
+
+properties:
+ mdio-parent-bus:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ The phandle of the MDIO bus that this multiplexer's master-side port is
+ connected to.
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+patternProperties:
+ '^mdio@[0-9a-f]+$':
+ $ref: mdio.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ maxItems: 1
+
+additionalProperties: true
+
+...