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> --- Changes v1 -> v2 [Matt - Removed comment block and added possibilities of thermocouple type in device tree binding doc. v2 -> v3 - Rebased --- .../bindings/iio/temperature/max31856.txt | 32 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 33 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..e1def9f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/max31856.txt @@ -0,0 +1,32 @@ +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) + 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. + +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 3cfa518..44ec309 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7163,6 +7163,7 @@ L: linux-iio@xxxxxxxxxxxxxxx S: Maintained F: drivers/iio/temperature/max31856.c F: Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856 +F: Documentation/devicetree/bindings/iio/temperature/max31856.txt IIO UNIT CONVERTER M: Peter Rosin <peda@xxxxxxxxxx> -- 1.9.1
