| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | ... |