regulator: add document bindings for sy8827n

# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/regulator/silergy,sy8827n.yaml#

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

title: silergy sy8827n PMIC

maintainers:

  - Jisheng Zhang <jszhang@kernel.org>

properties:

  compatible:

    enum:

      - silergy,sy8827n

  reg:

    maxItems: 1

  enable-gpios:

    description: GPIO to enable/disable the regulator.

    maxItems: 1

  silergy,vsel-state-high:

    type: boolean

    description:

      Indicates if the VSEL pin is set to high.

      If this property is missing, assume the VSEL pin is set to low.

required:

  - compatible

  - reg

examples:

  - |

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;

        regulator@60 {

          compatible = "silergy,sy8827n";

          reg = <0x60>;

        };

    };

...