dt-bindings: iio: adc: maxim,max11100 yaml conversion

* Maxim max11100 Analog to Digital Converter (ADC)

Required properties:

  - compatible: Should be "maxim,max11100"

  - reg: the adc unit address

  - vref-supply: phandle to the regulator that provides reference voltage

Optional properties:

  - spi-max-frequency: SPI maximum frequency

Example:

max11100: adc@0 {

        compatible = "maxim,max11100";

        reg = <0>;

        vref-supply = <&adc0_vref>;

        spi-max-frequency = <240000>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/adc/maxim,max11100.yaml#

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

title: Maxim MAX11100 ADC

maintainers:

  - Jacopo Mondi <jacopo@jmondi.org>

description: |

    Single channel 16 bit ADC with SPI interface.

properties:

  compatible:

    const: maxim,max11100

  reg:

    maxItems: 1

  vref-supply:

    description: External reference, needed to establish input scaling.

  spi-max-frequency:

    minimum: 100000

    maximum: 4800000

additionalProperties: false

required:

  - compatible

  - reg

  - vref-supply

examples:

  - |

    spi {

        #address-cells = <1>;

        #size-cells = <0>;

        adc@0 {

            compatible = "maxim,max11100";

            reg = <0>;

            vref-supply = <&adc_vref>;

            spi-max-frequency = <240000>;

        };

    };

...