Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt

   1 Maxim thermocouple support
   2
   3 * https://datasheets.maximintegrated.com/en/ds/MAX6675.pdf
   4 * https://datasheets.maximintegrated.com/en/ds/MAX31855.pdf
   5
   6 Required properties:
   7
   8         - compatible: must be "maxim,max6675" or one of the following:
   9            "maxim,max31855k", "maxim,max31855j", "maxim,max31855n",
  10            "maxim,max31855s", "maxim,max31855t", "maxim,max31855e",
  11            "maxim,max31855r"; the generic "max,max31855" is deprecated.
  12         - reg: SPI chip select number for the device
  13         - spi-max-frequency: must be 4300000
  14         - spi-cpha: must be defined for max6675 to enable SPI mode 1
  15
  16         Refer to spi/spi-bus.txt for generic SPI slave bindings.
  17
  18 Example:
  19
  20         max31855@0 {
  21                 compatible = "maxim,max31855k";
  22                 reg = <0>;
  23                 spi-max-frequency = <4300000>;
  24         };