linux/Documentation/devicetree/bindings/usb/dwc2.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/dwc2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: DesignWare HS OTG USB 2.0 controller Bindings

maintainers:
  - Rob Herring <robh@kernel.org>

properties:
  compatible:
    oneOf:
      - const: brcm,bcm2835-usb
      - const: hisilicon,hi6220-usb
      - items:
          - const: rockchip,rk3066-usb
          - const: snps,dwc2
      - items:
          - enum:
              - rockchip,px30-usb
              - rockchip,rk3036-usb
              - rockchip,rk3188-usb
              - rockchip,rk3228-usb
              - rockchip,rk3288-usb
              - rockchip,rk3308-usb
              - rockchip,rk3328-usb
              - rockchip,rk3368-usb
              - rockchip,rv1108-usb
          - const: rockchip,rk3066-usb
          - const: snps,dwc2
      - const: lantiq,arx100-usb
      - const: lantiq,xrx200-usb
      - items:
          - enum:
              - amlogic,meson8-usb
              - amlogic,meson8b-usb
              - amlogic,meson-gxbb-usb
              - amlogic,meson-g12a-usb
          - const: snps,dwc2
      - const: amcc,dwc-otg
      - const: apm,apm82181-dwc-otg
      - const: snps,dwc2
      - const: st,stm32f4x9-fsotg
      - const: st,stm32f4x9-hsotg
      - const: st,stm32f7-hsotg
      - const: st,stm32mp15-fsotg
      - items:
          - const: st,stm32mp15-hsotg
          - const: snps,dwc2
      - const: samsung,s3c6400-hsotg

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    items:
      - const: otg

  resets:
    items:
      - description: common reset
      - description: ecc reset
    minItems: 1

  reset-names:
    items:
      - const: dwc2
      - const: dwc2-ecc
    minItems: 1

  phys:
    maxItems: 1

  phy-names:
    const: usb2-phy

  power-domains:
    maxItems: 1

  vbus-supply:
    description: reference to the VBUS regulator. Depending on the current mode
      this is enabled (in "host" mode") or disabled (in "peripheral" mode). The
      regulator is updated if the controller is configured in "otg" mode and the
      status changes between "host" and "peripheral".

  vusb_d-supply:
    description: phandle to voltage regulator of digital section,

  vusb_a-supply:
    description: phandle to voltage regulator of analog section.

  usb33d-supply:
    description: reference to the VBUS and ID sensing comparators supply, in
      order to perform OTG operation, used on STM32MP15 SoCs.

  dr_mode:
    enum: [host, peripheral, otg]

  usb-role-switch:
    $ref: /schemas/types.yaml#/definitions/flag
    description: Support role switch.

  g-rx-fifo-size:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: size of rx fifo size in gadget mode.

  g-np-tx-fifo-size:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: size of non-periodic tx fifo size in gadget mode.

  g-tx-fifo-size:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    description: size of periodic tx fifo per endpoint (except ep0) in gadget mode.

  snps,need-phy-for-wake:
    $ref: /schemas/types.yaml#/definitions/flag
    description: If present indicates that the phy needs to be left on for 
      remote wakeup during suspend.

  snps,reset-phy-on-wake:
    $ref: /schemas/types.yaml#/definitions/flag
    description: If present indicates that we need to reset the PHY when we 
      detect a wakeup. This is due to a hardware errata.

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

additionalProperties: false

examples:
  - |
      usb@101c0000 {
        compatible = "rockchip,rk3066-usb", "snps,dwc2";
        reg = <0x10180000 0x40000>;
        interrupts = <18>;
        clocks = <&usb_otg_ahb_clk>;
        clock-names = "otg";
        phys = <&usbphy>;
        phy-names = "usb2-phy";
      };

...