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> --- .../bindings/iio/temperature/max31856.txt | 36 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 37 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 0000000..fb1dfca --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/max31856.txt @@ -0,0 +1,36 @@ +Maxim MAX31856 thermocouple support + +https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf + +Required properties: + - compatible: must be "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 + - type: Type of thermocouple (By default is K-Type) + /* + TYPE_B = 0x00 + TYPE_E = 0x01 + TYPE_J = 0x02 + TYPE_K = 0x03 + TYPE_N = 0x04 + TYPE_R = 0x05 + TYPE_S = 0x06 + TYPE_T = 0x07 + VMODE_G8 = 0x08 + VMODE_G32 = 0x12 + */ + + Refer to spi/spi-bus.txt for generic SPI slave bindings. + +Optional properties: + - one-shot: Enable one-shot Conversion mode (By default mode is auto) + + Example: + max31856@0 { + compatible = "max31856"; + reg = <0>; + spi-max-frequency = <5000000>; + spi-cpha; + type = <0x03>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index dd9a83d..6482ae8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7161,6 +7161,7 @@ MAX31856 IIO DRIVER M: Matthew Weber <matthew.weber@xxxxxxxxxxxxxxxxxxx> S: Maintained F: drivers/iio/temperature/max31856.c +F: Documentation/devicetree/bindings/iio/temperature/max31856.txt IIO UNIT CONVERTER M: Peter Rosin <peda@xxxxxxxxxx> -- 1.9.1
