adi,ad7192.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 # Copyright 2019 Analog Devices Inc.
    3 %YAML 1.2
    4 ---
    5 $id: http://devicetree.org/schemas/iio/adc/adi,ad7192.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: Analog Devices AD7192 ADC device driver
    9 
   10 maintainers:
   11   - Michael Hennerich <michael.hennerich@analog.com>
   12 
   13 description: |
   14   Bindings for the Analog Devices AD7192 ADC device. Datasheet can be
   15   found here:
   16   https://www.analog.com/media/en/technical-documentation/data-sheets/AD7192.pdf
   17 
   18 properties:
   19   compatible:
   20     enum:
   21       - adi,ad7190
   22       - adi,ad7192
   23       - adi,ad7193
   24       - adi,ad7195
   25 
   26   reg:
   27     maxItems: 1
   28 
   29   spi-cpol: true
   30 
   31   spi-cpha: true
   32 
   33   spi-max-frequency: true
   34 
   35   clocks:
   36     maxItems: 1
   37     description: phandle to the master clock (mclk)
   38 
   39   clock-names:
   40     items:
   41       - const: mclk
   42 
   43   interrupts:
   44     maxItems: 1
   45 
   46   dvdd-supply:
   47     description: DVdd voltage supply
   48 
   49   avdd-supply:
   50     description: AVdd voltage supply
   51 
   52   adi,rejection-60-Hz-enable:
   53     description: |
   54       This bit enables a notch at 60 Hz when the first notch of the sinc
   55       filter is at 50 Hz. When REJ60 is set, a filter notch is placed at
   56       60 Hz when the sinc filter first notch is at 50 Hz. This allows
   57       simultaneous 50 Hz/ 60 Hz rejection.
   58     type: boolean
   59 
   60   adi,refin2-pins-enable:
   61     description: |
   62       External reference applied between the P1/REFIN2(+) and P0/REFIN2(−) pins.
   63     type: boolean
   64 
   65   adi,buffer-enable:
   66     description: |
   67       Enables the buffer on the analog inputs. If cleared, the analog inputs
   68       are unbuffered, lowering the power consumption of the device. If this
   69       bit is set, the analog inputs are buffered, allowing the user to place
   70       source impedances on the front end without contributing gain errors to
   71       the system.
   72     type: boolean
   73 
   74   adi,burnout-currents-enable:
   75     description: |
   76       When this bit is set to 1, the 500 nA current sources in the signal
   77       path are enabled. When BURN = 0, the burnout currents are disabled.
   78       The burnout currents can be enabled only when the buffer is active
   79       and when chop is disabled.
   80     type: boolean
   81 
   82   bipolar:
   83     description: see Documentation/devicetree/bindings/iio/adc/adc.yaml
   84     type: boolean
   85 
   86 required:
   87   - compatible
   88   - reg
   89   - clocks
   90   - clock-names
   91   - interrupts
   92   - dvdd-supply
   93   - avdd-supply
   94   - spi-cpol
   95   - spi-cpha
   96 
   97 additionalProperties: false
   98 
   99 examples:
  100   - |
  101     spi0 {
  102       #address-cells = <1>;
  103       #size-cells = <0>;
  104 
  105       adc@0 {
  106         compatible = "adi,ad7192";
  107         reg = <0>;
  108         spi-max-frequency = <1000000>;
  109         spi-cpol;
  110         spi-cpha;
  111         clocks = <&ad7192_mclk>;
  112         clock-names = "mclk";
  113         interrupts = <25 0x2>;
  114         interrupt-parent = <&gpio>;
  115         dvdd-supply = <&dvdd>;
  116         avdd-supply = <&avdd>;
  117 
  118         adi,refin2-pins-enable;
  119         adi,rejection-60-Hz-enable;
  120         adi,buffer-enable;
  121         adi,burnout-currents-enable;
  122         };
  123     };

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sys/contrib/device-tree/Bindings/iio/adc/adi,ad7192.yaml