111 lines
2.6 KiB
YAML
111 lines
2.6 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/usb/gpio-sbu-mux.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: GPIO-based SBU mux
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maintainers:
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- Bjorn Andersson <andersson@kernel.org>
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description:
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In USB Type-C applications the SBU lines needs to be connected, disconnected
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and swapped depending on the altmode and orientation. This binding describes
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a family of hardware solutions which switches between these modes using GPIO
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signals.
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properties:
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compatible:
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items:
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- enum:
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- onnn,fsusb43l10x
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- pericom,pi3usb102
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- const: gpio-sbu-mux
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enable-gpios:
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description: Switch enable GPIO
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select-gpios:
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description: Orientation select
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vcc-supply:
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description: power supply
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mode-switch:
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description: Flag the port as possible handle of altmode switching
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type: boolean
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orientation-switch:
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description: Flag the port as possible handler of orientation switching
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type: boolean
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port:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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A port node to link the SBU mux to a TypeC controller for the purpose of
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handling altmode muxing and orientation switching.
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required:
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- compatible
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- enable-gpios
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- select-gpios
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- mode-switch
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- orientation-switch
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- port
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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tcpm {
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connector {
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compatible = "usb-c-connector";
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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tcpm_hs_out: endpoint {
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remote-endpoint = <&usb_hs_phy_in>;
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};
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};
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port@1 {
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reg = <1>;
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tcpm_ss_out: endpoint {
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remote-endpoint = <&usb_ss_phy_in>;
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};
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};
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port@2 {
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reg = <2>;
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tcpm_sbu_out: endpoint {
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remote-endpoint = <&sbu_mux_in>;
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};
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};
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};
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};
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};
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sbu-mux {
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compatible = "pericom,pi3usb102", "gpio-sbu-mux";
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enable-gpios = <&tlmm 101 GPIO_ACTIVE_LOW>;
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select-gpios = <&tlmm 164 GPIO_ACTIVE_HIGH>;
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mode-switch;
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orientation-switch;
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port {
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sbu_mux_in: endpoint {
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remote-endpoint = <&tcpm_sbu_out>;
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};
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};
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};
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...
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