diff options
| author | Paresh Chaudhary <paresh.chaudhary@rockwellcollins.com> | 2019-03-26 12:18:41 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-04-04 20:21:03 +0100 |
| commit | 8fede567b8472b36e2af3eac94ba68b234533bac (patch) | |
| tree | c7ae90b67ccd183ade3438e74f7096109dfd0b82 /Documentation/devicetree/bindings/iio/temperature | |
| parent | 023e41632e065d49bcbe31b3c4b336217f96a271 (diff) | |
iio:temperature:max31856:Add device tree bind info
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>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation/devicetree/bindings/iio/temperature')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/temperature/max31856.txt | 24 |
1 files changed, 24 insertions, 0 deletions
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>; + }; |