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| author | Andrew Hepp <andrew.hepp@ahepp.dev> | 2023-10-25 16:31:52 -0700 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2023-11-16 19:10:28 +0000 |
| commit | d6f250b1fe8e5878823a34fa919fc7e03afb7abb (patch) | |
| tree | 003e5fd57931b6b38f45d3bc5c78a91cbc06959d | |
| parent | 18cdaaa482121aef942585cfbb02b1a9058e553d (diff) | |
dt-bindings: iio: Add MCP9600 thermocouple EMF converter
Add support for the MCP9600 thermocouple electromotive force converter. The sensor has integrated cold junction compensation and a typical accuracy of 0.5 degrees Celsius. The driver supports a resolution of 0.0625 degrees Celsius.
Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP960X-Data-Sheet-20005426.pdf
Signed-off-by: Andrew Hepp <andrew.hepp@ahepp.dev>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231025233153.5454-1-andrew.hepp@ahepp.dev
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml b/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml new file mode 100644 index 000000000000..d2cafa38a544 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/temperature/microchip,mcp9600.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip MCP9600 thermocouple EMF converter + +maintainers: + - Andrew Hepp <andrew.hepp@ahepp.dev> + +description: + https://ww1.microchip.com/downloads/en/DeviceDoc/MCP960X-Data-Sheet-20005426.pdf + +properties: + compatible: + const: microchip,mcp9600 + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 6 + + interrupt-names: + minItems: 1 + maxItems: 6 + items: + enum: + - open-circuit + - short-circuit + - alert1 + - alert2 + - alert3 + - alert4 + + 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. + + vdd-supply: true + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/iio/temperature/thermocouple.h> + #include <dt-bindings/interrupt-controller/irq.h> + i2c { + #address-cells = <1>; + #size-cells = <0>; + + temperature-sensor@60 { + compatible = "microchip,mcp9600"; + reg = <0x60>; + interrupt-parent = <&gpio>; + interrupts = <25 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "open-circuit"; + thermocouple-type = <THERMOCOUPLE_TYPE_K>; + vdd-supply = <&vdd>; + }; + }; |