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