adi,ad7949.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/iio/adc/adi,ad7949.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Analog Devices AD7949/AD7682/AD7689 analog to digital converters
    8 
    9 maintainers:
   10   - Charles-Antoine Couret <charles-antoine.couret@essensium.com>
   11 
   12 description: |
   13   Specifications on the converters can be found at:
   14     AD7949:
   15       https://www.analog.com/media/en/technical-documentation/data-sheets/AD7949.pdf
   16     AD7682/AD7698:
   17       https://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf
   18 
   19 properties:
   20   compatible:
   21     enum:
   22       - adi,ad7682
   23       - adi,ad7689
   24       - adi,ad7949
   25 
   26   reg:
   27     maxItems: 1
   28 
   29   vrefin-supply:
   30     description:
   31       Buffered ADC reference voltage supply.
   32 
   33   vref-supply:
   34     description:
   35       Unbuffered ADC reference voltage supply.
   36 
   37   adi,internal-ref-microvolt:
   38     description: |
   39       Internal reference voltage selection in microvolts.
   40 
   41       If no internal reference is specified, the channel will default to the
   42       external reference defined by vrefin-supply (or vref-supply).
   43       vrefin-supply will take precedence over vref-supply if both are defined.
   44 
   45       If no supplies are defined, the reference selection will default to
   46       4096mV internal reference.
   47 
   48     enum: [2500000, 4096000]
   49     default: 4096000
   50 
   51 
   52   spi-max-frequency: true
   53 
   54   '#io-channel-cells':
   55     const: 1
   56 
   57   '#address-cells':
   58     const: 1
   59 
   60   '#size-cells':
   61     const: 0
   62 
   63 required:
   64   - compatible
   65   - reg
   66 
   67 additionalProperties: false
   68 
   69 examples:
   70   - |
   71     spi {
   72         #address-cells = <1>;
   73         #size-cells = <0>;
   74 
   75         adc@0 {
   76             #address-cells = <1>;
   77             #size-cells = <0>;
   78 
   79             compatible = "adi,ad7949";
   80             reg = <0>;
   81             vref-supply = <&vdd_supply>;
   82         };
   83 
   84         adc@1 {
   85             #address-cells = <1>;
   86             #size-cells = <0>;
   87 
   88             compatible = "adi,ad7949";
   89             reg = <1>;
   90             vrefin-supply = <&vdd_supply>;
   91         };
   92 
   93         adc@2 {
   94             #address-cells = <1>;
   95             #size-cells = <0>;
   96 
   97             compatible = "adi,ad7949";
   98             reg = <2>;
   99             adi,internal-ref-microvolt = <4096000>;
  100         };
  101     };
  102 ...

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sys/contrib/device-tree/Bindings/iio/adc/adi,ad7949.yaml