| Message ID | 20190307103409.24174-3-patrick.havelange@essensium.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v6,1/4] dt-bindings: iio/temperature: Add thermocouple types | expand |
On Thu, 7 Mar 2019 11:34:08 +0100, Patrick Havelange wrote: > From: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com> > > This patch added device tree binding info for MAX31856 driver. > > Signed-off-by: Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com> > Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com> > Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com> > --- > 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 > > v5 -> v6 > [Patrick > - use generic thermocouple-type for DT entry > --- > .../bindings/iio/temperature/max31856.txt | 24 +++++++++++++++++++ > 1 file changed, 24 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/temperature/max31856.txt > Reviewed-by: Rob Herring <robh@kernel.org>
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 = <THERMOCOUPLE_TYPE_K>; + };