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kernel-49/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt
Andrey Zolotarev e72e9355e3 start the android-4.9 tree
git: https://android.googlesource.com/kernel/common
branch: android-4.9
commit: 03fcc2fe71308c2d164b4e6cbfc738c63e670444
2018-11-15 21:36:32 +03:00

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Maxim thermocouple support
* https://datasheets.maximintegrated.com/en/ds/MAX6675.pdf
* https://datasheets.maximintegrated.com/en/ds/MAX31855.pdf
Required properties:
- compatible: must be "maxim,max31855" or "maxim,max6675"
- reg: SPI chip select number for the device
- spi-max-frequency: must be 4300000
- spi-cpha: must be defined for max6675 to enable SPI mode 1
Refer to spi/spi-bus.txt for generic SPI slave bindings.
Example:
max31855@0 {
compatible = "maxim,max31855";
reg = <0>;
spi-max-frequency = <4300000>;
};