xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml (revision 8c2ecf20)

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/allwinner,sun4i-a10-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A10 USB PHY Device Tree Bindings

maintainers:
  - Chen-Yu Tsai <wens@csie.org>
  - Maxime Ripard <mripard@kernel.org>

properties:
  "#phy-cells":
    const: 1

  compatible:
    enum:
      - allwinner,sun4i-a10-usb-phy
      - allwinner,sun7i-a20-usb-phy

  reg:
    items:
      - description: PHY Control registers
      - description: PHY PMU1 registers
      - description: PHY PMU2 registers

  reg-names:
    items:
      - const: phy_ctrl
      - const: pmu1
      - const: pmu2

  clocks:
    maxItems: 1
    description: USB PHY bus clock

  clock-names:
    const: usb_phy

  resets:
    items:
      - description: USB OTG reset
      - description: USB Host 1 Controller reset
      - description: USB Host 2 Controller reset

  reset-names:
    items:
      - const: usb0_reset
      - const: usb1_reset
      - const: usb2_reset

  usb0_id_det-gpios:
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:
    description: Power supply to detect the USB OTG VBUS

  usb0_vbus-supply:
    description: Regulator controlling USB OTG VBUS

  usb1_vbus-supply:
    description: Regulator controlling USB1 Host controller

  usb2_vbus-supply:
    description: Regulator controlling USB2 Host controller

required:
  - "#phy-cells"
  - compatible
  - clocks
  - clock-names
  - reg
  - reg-names
  - resets
  - reset-names

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/clock/sun4i-a10-ccu.h>
    #include <dt-bindings/reset/sun4i-a10-ccu.h>

    usbphy: phy@1c13400 {
        #phy-cells = <1>;
        compatible = "allwinner,sun4i-a10-usb-phy";
        reg = <0x01c13400 0x10>, <0x01c14800 0x4>, <0x01c1c800 0x4>;
        reg-names = "phy_ctrl", "pmu1", "pmu2";
        clocks = <&ccu CLK_USB_PHY>;
        clock-names = "usb_phy";
        resets = <&ccu RST_USB_PHY0>,
                 <&ccu RST_USB_PHY1>,
                 <&ccu RST_USB_PHY2>;
        reset-names = "usb0_reset", "usb1_reset", "usb2_reset";
        usb0_id_det-gpios = <&pio 7 19 GPIO_ACTIVE_HIGH>;
        usb0_vbus_det-gpios = <&pio 7 22 GPIO_ACTIVE_HIGH>;
        usb0_vbus-supply = <&reg_usb0_vbus>;
        usb1_vbus-supply = <&reg_usb1_vbus>;
        usb2_vbus-supply = <&reg_usb2_vbus>;
    };