regulator: max77857: Add ADI MAX77857/59/MAX77831 Regulator bindings

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

# Copyright 2022 Analog Devices Inc.

%YAML 1.2

---

$id: http://devicetree.org/schemas/regulator/adi,max77857.yaml#

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

title: Analog Devices MAX77857 Buck-Boost Converter

maintainers:

  - Ibrahim Tilki <Ibrahim.Tilki@analog.com>

  - Okan Sahin <Okan.Sahin@analog.com>

description: Analog Devices MAX77857 Buck-Boost Converter

properties:

  compatible:

    enum:

      - adi,max77831

      - adi,max77857

      - adi,max77859

      - adi,max77859a

  reg:

    description: I2C address of the device

    items:

      - enum: [0x66, 0x67, 0x6E, 0x6F]

  interrupts:

    maxItems: 1

  adi,switch-frequency-hz:

    description: Switching frequency of the Buck-Boost converter in Hz.

    items:

      - enum: [1200000, 1500000, 1800000, 2100000]

  adi,rtop-ohms:

    description: Top feedback resistor value in ohms for external feedback.

    minimum: 150000

    maximum: 330000

  adi,rbot-ohms:

    description: Bottom feedback resistor value in ohms for external feedback.

dependencies:

  adi,rtop-ohms: [ 'adi,rbot-ohms' ]

  adi,rbot-ohms: [ 'adi,rtop-ohms' ]

required:

  - compatible

  - reg

allOf:

  - $ref: regulator.yaml#

  - if:

      properties:

        compatible:

          contains:

            enum:

              - adi,max77831

    then:

      properties:

        adi,switch-frequency-hz:

          items:

            enum: [1200000, 1500000, 1800000]

unevaluatedProperties: false

examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;

        regulator@66 {

            reg = <0x66>;

            compatible = "adi,max77857";

            interrupt-parent = <&gpio>;

            interrupts = <26 IRQ_TYPE_EDGE_FALLING>;

            adi,rtop-ohms = <312000>;

            adi,rbot-ohms = <12000>;

        };

    };