regulator: rt6160: Add DT binding document for Richtek RT6160

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/regulator/richtek,rt6160-regulator.yaml#

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

title: Richtek RT6160 BuckBoost converter

maintainers:

  - ChiYuan Huang <cy_huang@richtek.com>

description: |

  The RT6160 is a high-efficiency buck-boost converter that can provide

  up to 3A output current from 2025mV to 5200mV. And it support the wide

  input voltage range from 2200mV to 5500mV.

  Datasheet is available at

  https://www.richtek.com/assets/product_file/RT6160A/DS6160A-00.pdf

allOf:

  - $ref: regulator.yaml#

properties:

  compatible:

    enum:

      - richtek,rt6160

  reg:

    maxItems: 1

  enable-gpios:

    description: A connection of the 'enable' gpio line.

    maxItems: 1

  richtek,vsel-active-low:

    description: |

      Used to indicate the 'vsel' pin active level. if not specified, use

      high active level as the default.

    type: boolean

required:

  - compatible

  - reg

unevaluatedProperties: false

examples:

  - |

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;

      rt6160@75 {

        compatible = "richtek,rt6160";

        reg = <0x75>;

        enable-gpios = <&gpio26 2 0>;

        regulator-name = "rt6160-buckboost";

        regulator-min-microvolt = <2025000>;

        regulator-max-microvolt = <5200000>;

      };

    };