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Commit 182c2909 authored by Andi Shyti's avatar Andi Shyti Committed by Mauro Carvalho Chehab
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[media] Documentation: bindings: add documentation for ir-spi device driver 



Document the ir-spi driver's binding which is a IR led driven
through the SPI line.

Signed-off-by: default avatarAndi Shyti <andi.shyti@samsung.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSean Young <sean@mess.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent d5083677

Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt

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Device tree bindings for IR LED connected through SPI bus which is used as

remote controller.



The IR LED switch is connected to the MOSI line of the SPI device and the data

are delivered thourgh that.



Required properties:

	- compatible: should be "ir-spi-led".



Optional properties:

	- duty-cycle: 8 bit balue that represents the percentage of one period

	  in which the signal is active.  It can be 50, 60, 70, 75, 80 or 90.

	- led-active-low: boolean value that specifies whether the output is

	  negated with a NOT gate.

	- power-supply: specifies the power source. It can either be a regulator

	  or a gpio which enables a regulator, i.e. a regulator-fixed as

	  described in

	  Documentation/devicetree/bindings/regulator/fixed-regulator.txt



Example:



	irled@0 {

		compatible = "ir-spi-led";

		reg = <0x0>;

		spi-max-frequency = <5000000>;

		power-supply = <&vdd_led>;

		led-active-low;

		duty-cycle = /bits/ 8 <60>;

	};