From: Paresh Chaudhary <paresh.chaudhary@xxxxxxxxxxxxxxxxxxx> This patch added device tree binding info for MAX31856 driver. Signed-off-by: Paresh Chaudhary <paresh.chaudhary@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Matt Weber <matthew.weber@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Patrick Havelange <patrick.havelange@xxxxxxxxxxxxx> --- Changes v1 -> v2 [Matt - Removed comment block and added possibilities of thermocouple type in device tree binding doc. v2 -> v3 - Rebased v3 -> v4 - Removed one-shot property related information. - Used standard name 'temp-sensor' v4 -> v5 [Patrick - Rename thermocouple type to maxim,thermocouple-type for DT entry --- .../bindings/iio/temperature/max31856.txt | 29 +++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/temperature/max31856.txt diff --git a/Documentation/devicetree/bindings/iio/temperature/max31856.txt b/Documentation/devicetree/bindings/iio/temperature/max31856.txt new file mode 100644 index 000000000000..b4396069b8fa --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/max31856.txt @@ -0,0 +1,29 @@ +Maxim MAX31856 thermocouple support + +https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf + +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 + - maxim,thermocouple-type: Type of thermocouple (By default is K-Type) + 0x00 : TYPE_B + 0x01 : TYPE_E + 0x02 : TYPE_J + 0x03 : TYPE_K (default) + 0x04 : TYPE_N + 0x05 : TYPE_R + 0x06 : TYPE_S + 0x07 : TYPE_T + + 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; + maxim,thermocouple-type = <0x03>; + }; -- 2.19.1
