dt-bindings: Add bindings for USB3 phy on Allwinner H6

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

# Copyright 2019 Ondrej Jirman <megous@megous.com>

%YAML 1.2

---

$id: "http://devicetree.org/schemas/phy/allwinner,sun50i-h6-usb3-phy.yaml#"

$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: Allwinner H6 USB3 PHY

maintainers:

  - Ondrej Jirman <megous@megous.com>

properties:

  compatible:

    enum:

      - allwinner,sun50i-h6-usb3-phy

  reg:

    maxItems: 1

  clocks:

    maxItems: 1

  resets:

    maxItems: 1

  "#phy-cells":

    const: 0

required:

  - compatible

  - reg

  - clocks

  - resets

  - "#phy-cells"

examples:

  - |

    #include <dt-bindings/clock/sun50i-h6-ccu.h>

    #include <dt-bindings/reset/sun50i-h6-ccu.h>

    phy@5210000 {

          compatible = "allwinner,sun50i-h6-usb3-phy";

          reg = <0x5210000 0x10000>;

          clocks = <&ccu CLK_USB_PHY1>;

          resets = <&ccu RST_USB_PHY1>;

          #phy-cells = <0>;

    };