dt-bindings: pwm: brcm,iproc-pwm: convert to the json-schema

Broadcom iProc PWM controller device tree bindings

This controller has 4 channels.

Required Properties :

- compatible: must be "brcm,iproc-pwm"

- reg: physical base address and length of the controller's registers

- clocks: phandle + clock specifier pair for the external clock

- #pwm-cells: Should be 3. See pwm.yaml in this directory for a

  description of the cells format.

Refer to clocks/clock-bindings.txt for generic clock consumer properties.

Example:

pwm: pwm@18031000 {

	compatible = "brcm,iproc-pwm";

	reg = <0x18031000 0x28>;

	clocks = <&osc>;

	#pwm-cells = <3>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/pwm/brcm,iproc-pwm.yaml#

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

title: Broadcom iProc PWM controller

maintainers:

  - Rafał Miłecki <rafal@milecki.pl>

description:

  This controller has 4 channels.

allOf:

  - $ref: pwm.yaml#

properties:

  compatible:

    const: brcm,iproc-pwm

  reg:

    maxItems: 1

  clocks:

    description: external clock

    maxItems: 1

  "#pwm-cells":

    const: 3

unevaluatedProperties: false

required:

  - reg

  - clocks

examples:

  - |

    pwm@18031000 {

        compatible = "brcm,iproc-pwm";

        reg = <0x18031000 0x28>;

        clocks = <&osc>;

        #pwm-cells = <3>;

    };