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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/mdio-mux-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Properties for an MDIO bus multiplexer/switch controlled by GPIO pins.
+
+maintainers:
+  - Andrew Lunn <andrew@lunn.ch>
+
+description:
+  This is a special case of a MDIO bus multiplexer.  One or more GPIO
+  lines are used to control which child bus is connected.
+
+allOf:
+  - $ref: /schemas/net/mdio-mux.yaml#
+
+properties:
+  compatible:
+    const: mdio-mux-gpio
+
+  gpios:
+    description:
+      List of GPIOs used to control the multiplexer, least significant bit first.
+    minItems: 1
+    maxItems: 32
+
+required:
+  - compatible
+  - gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    /*
+     An NXP sn74cbtlv3253 dual 1-of-4 switch controlled by a
+     pair of GPIO lines.  Child busses 2 and 3 populated with 4
+     PHYs each.
+     */
+    mdio-mux {
+        compatible = "mdio-mux-gpio";
+        gpios = <&gpio1 3 0>, <&gpio1 4 0>;
+        mdio-parent-bus = <&smi1>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mdio@2 {
+            reg = <2>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ethernet-phy@1 {
+                reg = <1>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <10 8>; /* Pin 10, active low */
+            };
+            ethernet-phy@2 {
+                reg = <2>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <10 8>; /* Pin 10, active low */
+            };
+            ethernet-phy@3 {
+                reg = <3>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <10 8>; /* Pin 10, active low */
+            };
+            ethernet-phy@4 {
+                reg = <4>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <10 8>; /* Pin 10, active low */
+            };
+        };
+
+        mdio@3 {
+            reg = <3>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ethernet-phy@1 {
+                reg = <1>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <12 8>; /* Pin 12, active low */
+            };
+            ethernet-phy@2 {
+                reg = <2>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <12 8>; /* Pin 12, active low */
+            };
+            ethernet-phy@3 {
+                reg = <3>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <12 8>; /* Pin 12, active low */
+            };
+            ethernet-phy@4 {
+                reg = <4>;
+                marvell,reg-init = <3 0x10 0 0x5777>,
+                  <3 0x11 0 0x00aa>,
+                  <3 0x12 0 0x4105>,
+                  <3 0x13 0 0x0a60>;
+                interrupt-parent = <&gpio>;
+                interrupts = <12 8>; /* Pin 12, active low */
+            };
+        };
+    };
+...