[PATCH v3 2/2] iio: light: opt3001: Add device tree binding documentation

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Signed-off-by: Andreas Dannenberg <dannenberg@xxxxxx>
---
 .../devicetree/bindings/iio/light/opt3001.txt          | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/light/opt3001.txt

diff --git a/Documentation/devicetree/bindings/iio/light/opt3001.txt b/Documentation/devicetree/bindings/iio/light/opt3001.txt
new file mode 100644
index 0000000..d5f0765
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/opt3001.txt
@@ -0,0 +1,18 @@
+* Texas Instruments OPT3001 Ambient Light Sensor
+
+http://www.ti.com/product/opt3001
+
+Required properties:
+  - compatible: should be "ti,opt3001"
+  - reg: the I2C address of the sensor
+  - interrupt-parent: should be the phandle for the interrupt controller
+  - interrupts: interrupt mapping for GPIO IRQ (configure for falling edge)
+
+Example:
+
+opt3001@44 {
+	compatible = "ti,opt3001";
+	reg = <0x44>;
+	interrupt-parent = <&gpio1>;
+	interrupts = <28 IRQ_TYPE_EDGE_FALLING>;
+};
-- 
1.9.1

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