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-rw-r--r--Documentation/devicetree/bindings/iio/light/opt3001.txt26
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+* Texas Instruments OPT3001 Ambient Light Sensor
+
+The driver supports interrupt-driven and interrupt-less operation, depending
+on whether an interrupt property has been populated into the DT. Note that
+the optional generation of IIO events on rising/falling light threshold changes
+requires the use of interrupts. Without interrupts, only the simple reading
+of the current light value is supported through the IIO API.
+
+http://www.ti.com/product/opt3001
+
+Required properties:
+ - compatible: should be "ti,opt3001"
+ - reg: the I2C address of the sensor
+
+Optional properties:
+ - 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>;
+};