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Commit ea4570d6 authored by Andreas Dannenberg's avatar Andreas Dannenberg Committed by Jonathan Cameron
Browse files

iio: light: opt3001: Add device tree binding documentation 



The original documentation as submitted with the driver appears to have
dropped down a rabbit hole.

Signed-off-by: default avatarAndreas Dannenberg <dannenberg@ti.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent c2472d0b

Documentation/devicetree/bindings/iio/light/opt3001.txt

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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>;

};