leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

iio:temperature:max31856:Add device tree bind info

Browse Source 
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>
This commit is contained in:
Paresh Chaudhary 2019-03-26 12:18:41 +01:00 committed by Jonathan Cameron
parent 023e41632e
commit 8fede567b8
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
Documentation/devicetree/bindings/iio/temperature/max31856.txt Normal file
View File

@ -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>;
};