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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/temperature/maxim,max31856.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim MAX31856 thermocouple support
maintainers:
- Jonathan Cameron <jic23@kernel.org>
description: |
https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf
properties:
compatible:
const: maxim,max31856
reg:
maxItems: 1
spi-cpha: true
thermocouple-type:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Type of thermocouple (THERMOCOUPLE_TYPE_K if omitted).
Use defines in dt-bindings/iio/temperature/thermocouple.h.
Supported types are B, E, J, K, N, R, S, T.
required:
- compatible
- reg
- spi-cpha
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/iio/temperature/thermocouple.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
temp-sensor@0 {
compatible = "maxim,max31856";
reg = <0>;
spi-max-frequency = <5000000>;
spi-cpha;
thermocouple-type = <THERMOCOUPLE_TYPE_K>;
};
};
...
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