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@xxxxxxxxx> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- Changes for v7: - none Changes for v6: - none Changes for v5: - remove "bindings" from subject - change unevaluatedProperties to additionalProperties Changes for v4: - use descriptive names for open/short circuit interrupts - remove vdd regulator description - remove unused import - use generic sensor name in example - don't use literal style for doc description Changes for v3: - Added dt-bindings --- .../iio/temperature/microchip,mcp9600.yaml | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/temperature/microchip,mcp9600.yaml 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@xxxxxxxxx> + +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>; + }; + }; -- 2.34.1
