Documentation/devicetree/bindings/iio/temperature/maxim,max31856.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/iio/temperature/maxim,max31856.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Maxim MAX31856 thermocouple support
   8
   9 maintainers:
  10   - Jonathan Cameron <jic23@kernel.org>
  11
  12 description: |
  13   https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf
  14
  15 properties:
  16   compatible:
  17     const: maxim,max31856
  18
  19   reg:
  20     maxItems: 1
  21
  22   spi-cpha: true
  23
  24   thermocouple-type:
  25     $ref: /schemas/types.yaml#/definitions/uint32
  26     description:
  27       Type of thermocouple (THERMOCOUPLE_TYPE_K if omitted).
  28       Use defines in dt-bindings/iio/temperature/thermocouple.h.
  29       Supported types are B, E, J, K, N, R, S, T.
  30
  31 required:
  32   - compatible
  33   - reg
  34   - spi-cpha
  35
  36 allOf:
  37   - $ref: /schemas/spi/spi-peripheral-props.yaml#
  38
  39 unevaluatedProperties: false
  40
  41 examples:
  42   - |
  43     #include <dt-bindings/iio/temperature/thermocouple.h>
  44     spi {
  45         #address-cells = <1>;
  46         #size-cells = <0>;
  47
  48         temp-sensor@0 {
  49             compatible = "maxim,max31856";
  50             reg = <0>;
  51             spi-max-frequency = <5000000>;
  52             spi-cpha;
  53             thermocouple-type = <THERMOCOUPLE_TYPE_K>;
  54         };
  55     };
  56 ...