dt-bindings: iio: ti,ads8688 yaml conversion

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/adc/ti,ads8688.yaml#

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

title: Texas Instruments' ADS8684 and ADS8688 ADC chip

maintainers:

  - Sean Nyekjaer <sean@geanix.com>

description: |

   SPI 16bit ADCs with 4/8 channels.

properties:

  compatible:

    enum:

      - ti,ads8684

      - ti,ads8688

  reg:

    maxItems: 1

  vref-supply:

    description: Optional external reference.  If not supplied, assume

      REFSEL input tied low to enable the internal reference.

required:

  - compatible

  - reg

examples:

  - |

    spi {

        #address-cells = <1>;

        #size-cells = <0>;

        adc@0 {

            compatible = "ti,ads8688";

            reg = <0>;

            vref-supply = <&vdd_supply>;

            spi-max-frequency = <1000000>;

        };

    };

...

* Texas Instruments' ADS8684 and ADS8688 ADC chip

Required properties:

 - compatible: Should be "ti,ads8684" or "ti,ads8688"

 - reg: spi chip select number for the device

Recommended properties:

 - spi-max-frequency: Definition as per

		Documentation/devicetree/bindings/spi/spi-bus.txt

Optional properties:

 - vref-supply: The regulator supply for ADC reference voltage

Example:

adc@0 {

	compatible = "ti,ads8688";

	reg = <0>;

	vref-supply = <&vdd_supply>;

	spi-max-frequency = <1000000>;

};