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Maxim MAX31856 thermocouple support
https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf
Optional property:
- thermocouple-type: Type of thermocouple (THERMOCOUPLE_TYPE_K if
omitted). Supported types are B, E, J, K, N, R, S, T.
Required properties:
- compatible: must be "maxim,max31856"
- reg: SPI chip select number for the device
- spi-max-frequency: As per datasheet max. supported freq is 5000000
- spi-cpha: must be defined for max31856 to enable SPI mode 1
Refer to spi/spi-bus.txt for generic SPI slave bindings.
Example:
temp-sensor@0 {
compatible = "maxim,max31856";
reg = <0>;
spi-max-frequency = <5000000>;
spi-cpha;
thermocouple-type = <THERMOCOUPLE_TYPE_K>;
};