1 Maxim thermocouple support
3 * https://datasheets.maximintegrated.com/en/ds/MAX6675.pdf
4 * https://datasheets.maximintegrated.com/en/ds/MAX31855.pdf
8 - compatible: must be "maxim,max31855" or "maxim,max6675"
9 - reg: SPI chip select number for the device
10 - spi-max-frequency: must be 4300000
11 - spi-cpha: must be defined for max6675 to enable SPI mode 1
13 Refer to spi/spi-bus.txt for generic SPI slave bindings.
18 compatible = "maxim,max31855";
20 spi-max-frequency = <4300000>;