Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/allwinner,sun8i-h3-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner H3 USB PHY

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

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

  compatible:
    enum:
      - allwinner,sun8i-h3-usb-phy
      - allwinner,sun50i-h616-usb-phy

  reg:
    items:
      - description: PHY Control registers
      - description: PHY PMU0 registers
      - description: PHY PMU1 registers
      - description: PHY PMU2 registers
      - description: PHY PMU3 registers

  reg-names:
    items:
      - const: phy_ctrl
      - const: pmu0
      - const: pmu1
      - const: pmu2
      - const: pmu3

  clocks:
    minItems: 4
    items:
      - description: USB OTG PHY bus clock
      - description: USB Host 0 PHY bus clock
      - description: USB Host 1 PHY bus clock
      - description: USB Host 2 PHY bus clock
      - description: PMU clock for host port 2

  clock-names:
    minItems: 4
    items:
      - const: usb0_phy
      - const: usb1_phy
      - const: usb2_phy
      - const: usb3_phy
      - const: pmu2_clk

  resets:
    items:
      - description: USB OTG reset
      - description: USB Host 1 Controller reset
      - description: USB Host 2 Controller reset
      - description: USB Host 3 Controller reset

  reset-names:
    items:
      - const: usb0_reset
      - const: usb1_reset
      - const: usb2_reset
      - const: usb3_reset

  usb0_id_det-gpios:
    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
    maxItems: 1
    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

  usb3_vbus-supply:
    description: Regulator controlling USB3 Host controller

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

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - allwinner,sun50i-h616-usb-phy
    then:
      properties:
        clocks:
          minItems: 5

        clock-names:
          minItems: 5
    else:
      properties:
        clocks:
          maxItems: 4

        clock-names:
          maxItems: 4

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/clock/sun8i-h3-ccu.h>
    #include <dt-bindings/reset/sun8i-h3-ccu.h>

    phy@1c19400 {
        #phy-cells = <1>;
        compatible = "allwinner,sun8i-h3-usb-phy";
        reg = <0x01c19400 0x2c>,
              <0x01c1a800 0x4>,
              <0x01c1b800 0x4>,
              <0x01c1c800 0x4>,
              <0x01c1d800 0x4>;
        reg-names = "phy_ctrl",
                    "pmu0",
                    "pmu1",
                    "pmu2",
                    "pmu3";
        clocks = <&ccu CLK_USB_PHY0>,
                 <&ccu CLK_USB_PHY1>,
                 <&ccu CLK_USB_PHY2>,
                 <&ccu CLK_USB_PHY3>;
        clock-names = "usb0_phy",
                      "usb1_phy",
                      "usb2_phy",
                      "usb3_phy";
        resets = <&ccu RST_USB_PHY0>,
                 <&ccu RST_USB_PHY1>,
                 <&ccu RST_USB_PHY2>,
                 <&ccu RST_USB_PHY3>;
        reset-names = "usb0_reset",
                      "usb1_reset",
                      "usb2_reset",
                      "usb3_reset";
        usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
        usb0_vbus-supply = <&reg_usb0_vbus>;
        usb1_vbus-supply = <&reg_usb1_vbus>;
        usb2_vbus-supply = <&reg_usb2_vbus>;
        usb3_vbus-supply = <&reg_usb3_vbus>;
    };