From: Paresh Chaudhary Date: Tue, 26 Mar 2019 11:18:41 +0000 (+0100) Subject: iio:temperature:max31856:Add device tree bind info X-Git-Tag: v5.2-rc1~153^2~149^2~6 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=8fede567b8472b36e2af3eac94ba68b234533bac;p=linux.git iio:temperature:max31856:Add device tree bind info This patch added device tree binding info for MAX31856 driver. Signed-off-by: Paresh Chaudhary Signed-off-by: Matt Weber Signed-off-by: Patrick Havelange Reviewed-by: Rob Herring Signed-off-by: Jonathan Cameron --- diff --git a/Documentation/devicetree/bindings/iio/temperature/max31856.txt b/Documentation/devicetree/bindings/iio/temperature/max31856.txt new file mode 100644 index 000000000000..06ab43bb4de8 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/max31856.txt @@ -0,0 +1,24 @@ +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 = ; + };