Add binding documentation for Analog Devices AD5272 and AD5274 digital
potentiometer devices.
Signed-off-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
---
.../bindings/iio/potentiometer/ad5272.txt | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt b/Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt
new file mode 100644
index 0000000..11e804c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt
@@ -0,0 +1,27 @@
+* Analog Devices AD5272 digital potentiometer driver
+
+The node for this driver must be a child node of a I2C controller, hence
+all mandatory properties for your controller must be specified. See directory:
+
+ Documentation/devicetree/bindings/i2c
+
+for more details.
+
+Required properties:
+ - compatible: Must be one of the following, depending on the model:
+ adi,ad5272-020
+ adi,ad5272-050
+ adi,ad5272-100
+ adi,ad5274-020
+ adi,ad5274-100
+
+Optional properties:
+ - reset-gpios: GPIO specification for the RESET input. This is an
+ active low signal to the PCA953x.
+
+Example:
+ad5272: ad5272@2f {
+ reg = <0x2F>;
+ compatible = "adi,ad5272-020";
+ reset-gpios = <&gpio3 6 GPIO_ACTIVE_HIGH>;
+};
--
1.8.3.1
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