diff mbox series

[v6,3/4] iio:temperature:max31856:Add device tree bind info

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State Superseded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

Commit Message

Patrick Havelange March 7, 2019, 10:34 a.m. UTC
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

Comments

Rob Herring (Arm) March 11, 2019, 10:28 p.m. UTC | #1
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 mbox series

Patch

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>;
+	};