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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/gpio-mux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic display mux (1 input, 2 outputs)
+
+maintainers:
+ - Nicolas Boichat <drinkcat@chromium.org>
+
+description: |
+ This bindings describes a simple display (e.g. HDMI) mux, that has 1
+ input, and 2 outputs. The mux status is controlled by hardware, and
+ its status is read back using a GPIO.
+
+properties:
+ compatible:
+ const: gpio-display-mux
+
+ detect-gpios:
+ maxItems: 1
+ description: GPIO that indicates the active output
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: |
+ Video port for input.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: |
+ 2 video ports for output.
+ The reg value in the endpoints matches the GPIO status: when
+ GPIO is asserted, endpoint with reg value <1> is selected.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - detect-gpios
+ - ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ hdmi_mux: hdmi_mux {
+ compatible = "gpio-display-mux";
+ detect-gpios = <&pio 36 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_mux_pins>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 { /* input */
+ reg = <0>;
+
+ hdmi_mux_in: endpoint {
+ remote-endpoint = <&hdmi0_out>;
+ };
+ };
+
+ port@1 { /* output */
+ reg = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi_mux_out_anx: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&dp_bridge_in>;
+ };
+
+ hdmi_mux_out_hdmi: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+ };
+ };
+ };