dt-bindings: hwmon: convert TI ADS7828 bindings to dt-schema

ads7828 properties

Required properties:

- compatible: Should be one of

	       ti,ads7828

	       ti,ads7830

- reg: I2C address

Optional properties:

- ti,differential-input

  Set to use the device in differential mode.

- vref-supply

  The external reference on the device is set to this regulators output. If it

  does not exists the internal reference will be used and output by the ads78xx

  on the "external vref" pin.

  Example ADS7828 node:

  ads7828: ads@48 {

	   comatible = "ti,ads7828";

	   reg = <0x48>;

	   vref-supply = <&vref>;

	   ti,differential-input;

  };

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/hwmon/ti,ads7828.yaml#

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

title: Texas Instruments ADS7828/ADS7830 Analog to Digital Converter (ADC)

maintainers:

  - Krzysztof Kozlowski <krzk@kernel.org>

description: |

  The ADS7828 is 12-Bit, 8-Channel Sampling Analog to Digital Converter (ADC)

  with an I2C interface.

  Datasheets:

    https://www.ti.com/product/ADS7828

properties:

  compatible:

    enum:

      - ti,ads7828

      - ti,ads7830

  reg:

    maxItems: 1

  ti,differential-input:

    description:

      Set to use the device in differential mode.

    type: boolean

  vref-supply:

    description:

      The regulator to use as an external reference. If it does not exists the

      internal reference will be used.

required:

  - compatible

  - reg

additionalProperties: false

examples:

  - |

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;

        adc@48 {

            comatible = "ti,ads7828";

            reg = <0x48>;

            vref-supply = <&vref>;

            ti,differential-input;

        };

    };

          - st,24c256

            # Ambient Light Sensor with SMBUS/Two Wire Serial Interface

          - taos,tsl2550

            # 8-Channels, 12-bit ADC

          - ti,ads7828

            # 8-Channels, 8-bit ADC

          - ti,ads7830

            # Temperature Monitoring and Fan Control

          - ti,amc6821

            # Temperature sensor with 2-wire interface