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Commit 055f624e authored by Linus Walleij's avatar Linus Walleij Committed by Dmitry Torokhov
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Input: gpio_mouse - add DT bindings 



This adds DT bindings for simple mice attached to GPIO lines. As the
properties are very general and pertains to all mice I can think of, we use
very generic names for the 4-7 GPIO lines, "up", "down" etc.

Acked-by: default avatarHans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 34cf5a1c

Documentation/devicetree/bindings/input/gpio-mouse.txt

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Device-Tree bindings for GPIO attached mice



This simply uses standard GPIO handles to define a simple mouse connected

to 5-7 GPIO lines.



Required properties:

	- compatible: must be "gpio-mouse"

	- scan-interval-ms: The scanning interval in milliseconds

	- up-gpios: GPIO line phandle to the line indicating "up"

	- down-gpios: GPIO line phandle to the line indicating "down"

	- left-gpios: GPIO line phandle to the line indicating "left"

	- right-gpios: GPIO line phandle to the line indicating "right"



Optional properties:

	- button-left-gpios: GPIO line handle to the left mouse button

	- button-middle-gpios: GPIO line handle to the middle mouse button

	- button-right-gpios: GPIO line handle to the right mouse button

Example:



#include <dt-bindings/gpio/gpio.h>



gpio-mouse {

	compatible = "gpio-mouse";

	scan-interval-ms = <50>;

	up-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;

	down-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;

	left-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;

	right-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;

	button-left-gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;

	button-middle-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;

	button-right-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;

};