adi,ad74413r.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/iio/addac/adi,ad74413r.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Analog Devices AD74412R/AD74413R device
    8 
    9 maintainers:
   10   - Cosmin Tanislav <cosmin.tanislav@analog.com>
   11 
   12 description: |
   13   The AD74412R and AD74413R are quad-channel software configurable input/output
   14   solutions for building and process control applications. They contain
   15   functionality for analog output, analog input, digital input, resistance
   16   temperature detector, and thermocouple measurements integrated
   17   into a single chip solution with an SPI interface.
   18   The devices feature a 16-bit ADC and four configurable 13-bit DACs to provide
   19   four configurable input/output channels and a suite of diagnostic functions.
   20   The AD74413R differentiates itself from the AD74412R by being HART-compatible.
   21     https://www.analog.com/en/products/ad74412r.html
   22     https://www.analog.com/en/products/ad74413r.html
   23 
   24 properties:
   25   compatible:
   26     enum:
   27       - adi,ad74412r
   28       - adi,ad74413r
   29 
   30   reg:
   31     maxItems: 1
   32 
   33   '#address-cells':
   34     const: 1
   35 
   36   '#size-cells':
   37     const: 0
   38 
   39   spi-max-frequency:
   40     maximum: 1000000
   41 
   42   spi-cpol: true
   43 
   44   interrupts:
   45     maxItems: 1
   46 
   47   refin-supply: true
   48 
   49   shunt-resistor-micro-ohms:
   50     description:
   51       Shunt (sense) resistor value in micro-Ohms.
   52     default: 100000000
   53 
   54 required:
   55   - compatible
   56   - reg
   57   - spi-max-frequency
   58   - spi-cpol
   59   - refin-supply
   60 
   61 additionalProperties: false
   62 
   63 patternProperties:
   64   "^channel@[0-3]$":
   65     type: object
   66     description: Represents the external channels which are connected to the device.
   67 
   68     properties:
   69       reg:
   70         description: |
   71           The channel number. It can have up to 4 channels numbered from 0 to 3.
   72         minimum: 0
   73         maximum: 3
   74 
   75       adi,ch-func:
   76         $ref: /schemas/types.yaml#/definitions/uint32
   77         description: |
   78           Channel function.
   79           HART functions are not supported on AD74412R.
   80           0 - CH_FUNC_HIGH_IMPEDANCE
   81           1 - CH_FUNC_VOLTAGE_OUTPUT
   82           2 - CH_FUNC_CURRENT_OUTPUT
   83           3 - CH_FUNC_VOLTAGE_INPUT
   84           4 - CH_FUNC_CURRENT_INPUT_EXT_POWER
   85           5 - CH_FUNC_CURRENT_INPUT_LOOP_POWER
   86           6 - CH_FUNC_RESISTANCE_INPUT
   87           7 - CH_FUNC_DIGITAL_INPUT_LOGIC
   88           8 - CH_FUNC_DIGITAL_INPUT_LOOP_POWER
   89           9 - CH_FUNC_CURRENT_INPUT_EXT_POWER_HART
   90           10 - CH_FUNC_CURRENT_INPUT_LOOP_POWER_HART
   91         minimum: 0
   92         maximum: 10
   93         default: 0
   94 
   95       adi,gpo-comparator:
   96         type: boolean
   97         description: |
   98           Whether to configure GPO as a comparator or not.
   99           When not configured as a comparator, the GPO will be treated as an
  100           output-only GPIO.
  101 
  102     required:
  103       - reg
  104 
  105 examples:
  106   - |
  107     #include <dt-bindings/gpio/gpio.h>
  108     #include <dt-bindings/interrupt-controller/irq.h>
  109     #include <dt-bindings/iio/addac/adi,ad74413r.h>
  110 
  111     spi {
  112       #address-cells = <1>;
  113       #size-cells = <0>;
  114 
  115       cs-gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
  116       status = "okay";
  117 
  118       ad74413r@0 {
  119         compatible = "adi,ad74413r";
  120         reg = <0>;
  121         spi-max-frequency = <1000000>;
  122         spi-cpol;
  123 
  124         #address-cells = <1>;
  125         #size-cells = <0>;
  126 
  127         interrupt-parent = <&gpio>;
  128         interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
  129 
  130         refin-supply = <&ad74413r_refin>;
  131 
  132         channel@0 {
  133           reg = <0>;
  134 
  135           adi,ch-func = <CH_FUNC_VOLTAGE_OUTPUT>;
  136         };
  137 
  138         channel@1 {
  139           reg = <1>;
  140 
  141           adi,ch-func = <CH_FUNC_CURRENT_OUTPUT>;
  142         };
  143 
  144         channel@2 {
  145           reg = <2>;
  146 
  147           adi,ch-func = <CH_FUNC_DIGITAL_INPUT_LOGIC>;
  148           adi,gpo-comparator;
  149         };
  150 
  151         channel@3 {
  152           reg = <3>;
  153 
  154           adi,ch-func = <CH_FUNC_CURRENT_INPUT_EXT_POWER>;
  155         };
  156       };
  157     };
  158 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/iio/addac/adi,ad74413r.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/iio/addac/adi,ad74413r.yaml