On Tue, Feb 26, 2019 at 04:02:13PM +0100, Patrick Havelange wrote: > 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 These appear to be standard types. Perhaps this should be a common property instead? > + > + 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 >
