Commit e6d2aaa9 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

dt-bindings: iio: adc: ti,adc0832 yaml conversion.



Simple binding conversion of this SPI ADC binding, with reference
voltage.

Added the optional property #io-channel-cells to allow for
consumers of channels if that makes sense for a given board.

Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Link: https://lore.kernel.org/r/20200809111753.156236-7-jic23@kernel.org
parent cee4a593
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/ti,adc0832.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments ADC0832 and similar ADCs

maintainers:
  - Akinobu Mita <akinobu.mita@gmail.com>

description: |
  8 bit ADCs with 1, 2, 4 or 8 inputs for single ended or differential
  conversion.

properties:
  compatible:
    enum:
      - ti,adc0831
      - ti,adc0832
      - ti,adc0834
      - ti,adc0838

  reg:
    maxItems: 1

  spi-max-frequency: true

  vref-supply:
    description: External reference, needed to establish input scaling

  "#io-channel-cells":
    const: 1

required:
  - compatible
  - reg
  - vref-supply

additionalProperties: false

examples:
  - |
    spi {
        #address-cells = <1>;
        #size-cells = <0>;

        adc@0 {
            compatible = "ti,adc0832";
            reg = <0>;
            vref-supply = <&vdd_supply>;
            spi-max-frequency = <200000>;
            #io-channel-cells = <1>;
        };
    };
...
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* Texas Instruments' ADC0831/ADC0832/ADC0832/ADC0838

Required properties:
 - compatible: Should be one of
	* "ti,adc0831"
	* "ti,adc0832"
	* "ti,adc0834"
	* "ti,adc0838"
 - reg: spi chip select number for the device
 - vref-supply: The regulator supply for ADC reference voltage
 - spi-max-frequency: Max SPI frequency to use (< 400000)

Example:
adc@0 {
	compatible = "ti,adc0832";
	reg = <0>;
	vref-supply = <&vdd_supply>;
	spi-max-frequency = <200000>;
};