dt-bindings: phy: imx8mq-usb-phy: convert to json schema

* Freescale i.MX8MQ USB3 PHY binding

Required properties:

- compatible:	Should be "fsl,imx8mq-usb-phy" or "fsl,imx8mp-usb-phy"

- #phys-cells:	must be 0 (see phy-bindings.txt in this directory)

- reg:		The base address and length of the registers

- clocks:	phandles to the clocks for each clock listed in clock-names

- clock-names:	must contain "phy"

Optional properties:

- vbus-supply: A phandle to the regulator for USB VBUS.

Example:

	usb3_phy0: phy@381f0040 {

		compatible = "fsl,imx8mq-usb-phy";

		reg = <0x381f0040 0x40>;

		clocks = <&clk IMX8MQ_CLK_USB1_PHY_ROOT>;

		clock-names = "phy";

		#phy-cells = <0>;

	};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/phy/fsl,imx8mq-usb-phy.yaml#

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

title: Freescale i.MX8MQ USB3 PHY binding

maintainers:

  - Li Jun <jun.li@nxp.com>

properties:

  compatible:

    enum:

      - fsl,imx8mq-usb-phy

      - fsl,imx8mp-usb-phy

  reg:

    maxItems: 1

  "#phy-cells":

    const: 0

  clocks:

    maxItems: 1

  clock-names:

    items:

      - const: phy

  vbus-supply:

    description:

      A phandle to the regulator for USB VBUS.

required:

  - compatible

  - reg

  - "#phy-cells"

  - clocks

  - clock-names

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/imx8mq-clock.h>

    usb3_phy0: phy@381f0040 {

        compatible = "fsl,imx8mq-usb-phy";

        reg = <0x381f0040 0x40>;

        clocks = <&clk IMX8MQ_CLK_USB1_PHY_ROOT>;

        clock-names = "phy";

        #phy-cells = <0>;

    };