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Commit dddfd098 authored by Javier Martinez Canillas's avatar Javier Martinez Canillas Committed by Lee Jones
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dt-bindings: mfd: Add retu/tahvo ASIC chips bindings 



There are Device Tree source files defining a device node for the
retu/tahvo I2C chip, but there isn't a DT binding document for it.

Signed-off-by: default avatarJavier Martinez Canillas <javier@dowhile0.org>
Acked-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarAaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 5771a8c0

Documentation/devicetree/bindings/mfd/retu.txt

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* Device tree bindings for Nokia Retu and Tahvo multi-function device



Retu and Tahvo are a multi-function devices found on Nokia Internet

Tablets (770, N800 and N810). The Retu chip provides watchdog timer

and power button control functionalities while Tahvo chip provides

USB transceiver functionality.



Required properties:

- compatible:		"nokia,retu" or "nokia,tahvo"

- reg:			Specifies the CBUS slave address of the ASIC chip

- interrupts: 		The interrupt line the device is connected to

- interrupt-parent:	The parent interrupt controller



Example:



cbus0 {

	compatible = "i2c-cbus-gpio";

	...

	retu: retu@1 {

		compatible = "nokia,retu";

		interrupt-parent = <&gpio4>;

		interrupts = <12 IRQ_TYPE_EDGE_RISING>;

		reg = <0x1>;

	};

};