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Documentation: Detail permitted DT properties for the BU21013 Touch Screen

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Here we apply required documentation for the Rohm BU21013 Touch
Screen driver which describe available properties and how to use
them.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lee Jones 2012-09-28 15:24:40 +01:00
parent ab196b4138
commit fb647002e4
1 changed files with 28 additions and 0 deletions
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Documentation/devicetree/bindings/input/touchscreen/bu21013.txt Normal file
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* Rohm BU21013 Touch Screen
Required properties:
- compatible : "rohm,bu21013_tp"
- reg : I2C device address
Optional properties:
- touch-gpio : GPIO pin registering a touch event
- <supply_name>-supply : Phandle to a regulator supply
- rohm,touch-max-x : Maximum outward permitted limit in the X axis
- rohm,touch-max-y : Maximum outward permitted limit in the Y axis
- rohm,flip-x : Flip touch coordinates on the X axis
- rohm,flip-y : Flip touch coordinates on the Y axis
Example:
i2c@80110000 {
bu21013_tp@0x5c {
compatible = "rohm,bu21013_tp";
reg = <0x5c>;
touch-gpio = <&gpio2 20 0x4>;
avdd-supply = <&ab8500_ldo_aux1_reg>;
rohm,touch-max-x = <384>;
rohm,touch-max-y = <704>;
rohm,flip-y;
};
};