From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick Havelange Subject: [PATCH v6 3/4] iio:temperature:max31856:Add device tree bind info Date: Thu, 7 Mar 2019 11:34:08 +0100 Message-ID: <20190307103409.24174-3-patrick.havelange@essensium.com> References: <20190307103409.24174-1-patrick.havelange@essensium.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190307103409.24174-1-patrick.havelange@essensium.com> Sender: linux-kernel-owner@vger.kernel.org To: Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , Mark Rutland , Matt Weber , Paresh Chaudhary , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: Patrick Havelange List-Id: devicetree@vger.kernel.org From: Paresh Chaudhary This patch added device tree binding info for MAX31856 driver. Signed-off-by: Paresh Chaudhary Signed-off-by: Matt Weber Signed-off-by: Patrick Havelange --- 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 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 = ; + }; -- 2.19.1