# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/usb-hub.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Generic USB Hub

maintainers:
  - Pin-yen Lin <treapking@chromium.org>

allOf:
  - $ref: usb-device.yaml#

properties:
  '#address-cells':
    const: 1

  peer-hub:
    $ref: /schemas/types.yaml#/definitions/phandle
    description:
      phandle to the peer hub on the controller.

  ports:
    $ref: /schemas/graph.yaml#/properties/ports
    description:
      The downstream facing USB ports

    patternProperties:
      "^port@[1-9a-f][0-9a-f]*$":
        $ref: /schemas/graph.yaml#/properties/port

patternProperties:
  '^.*@[1-9a-f][0-9a-f]*$':
    description: The hard wired USB devices
    type: object
    $ref: /schemas/usb/usb-device.yaml
    additionalProperties: true

required:
  - compatible
  - reg

additionalProperties: true

examples:
  - |
    usb {
        #address-cells = <1>;
        #size-cells = <0>;
 
        /* 2.0 hub on port 1 */
        hub_2_0: hub@1 {
            compatible = "usb123,4567";
            reg = <1>;
            peer-hub = <&hub_3_0>;
            #address-cells = <1>;
            #size-cells = <0>;
            /* USB 2.0 device on port 5 */
            device@5 {
                reg = <5>;
                compatible = "usb765,4321";
            };
        };
 
        /* 3.0 hub on port 2 */
        hub_3_0: hub@2 {
            compatible = "usb123,abcd";
            reg = <2>;
            peer-hub = <&hub_2_0>;
 
            ports {
                #address-cells = <1>;
                #size-cells = <0>;
                /* Type-A connector on port 3 */
                port@3 {
                    reg = <3>;
                    endpoint {
                        remote-endpoint = <&usb_a0_ss>;
                    };
                };
            };
        };
    };