dt-bindings: power: supply: isp1704: Convert to DT schema format

Binding for NXP ISP1704 USB Charger Detection

Required properties:

- compatible: Should contain one of the following:

 * "nxp,isp1704"

- nxp,enable-gpio: Should contain a phandle + gpio-specifier

  to the GPIO pin connected to the chip's enable pin.

- usb-phy: Should contain a phandle to the USB PHY

  the ISP1704 is connected to.

Example:

isp1704 {

	compatible = "nxp,isp1704";

	nxp,enable-gpio = <&gpio3 3 GPIO_ACTIVE_LOW>;

	usb-phy = <&usb2_phy>;

};

# SPDX-License-Identifier: GPL-2.0

# Copyright (C) 2021 Sebastian Reichel

%YAML 1.2

---

$id: "http://devicetree.org/schemas/power/supply/isp1704.yaml#"

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

title: Binding for NXP ISP1704 USB Charger Detection

maintainers:

  - Sebastian Reichel <sre@kernel.org>

allOf:

  - $ref: power-supply.yaml#

properties:

  compatible:

    const: nxp,isp1704

  nxp,enable-gpio:

    maxItems: 1

    description: GPIO connected to the chip's enable pin

  usb-phy:

    $ref: /schemas/types.yaml#/definitions/phandle

    description: USB PHY the ISP1704 is connected to

required:

  - compatible

  - nxp,enable-gpio

  - usb-phy

additionalProperties: false

examples:

  - |

    #include <dt-bindings/gpio/gpio.h>

    charger-detect {

      compatible = "nxp,isp1704";

      nxp,enable-gpio = <&gpio3 3 GPIO_ACTIVE_LOW>;

      usb-phy = <&usb2_phy>;

    };