From fb647002e4b6393a1f552b2fe48ba88c50d1d6e4 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 28 Sep 2012 15:24:40 +0100 Subject: Documentation: Detail permitted DT properties for the BU21013 Touch Screen Here we apply required documentation for the Rohm BU21013 Touch Screen driver which describe available properties and how to use them. Cc: Dmitry Torokhov Cc: linux-input@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org Acked-by: Arnd Bergmann Acked-by: Linus Walleij Signed-off-by: Lee Jones --- .../bindings/input/touchscreen/bu21013.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/bu21013.txt (limited to 'Documentation/devicetree/bindings') diff --git a/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt b/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt new file mode 100644 index 00000000000..ca5a2c86480 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt @@ -0,0 +1,28 @@ +* 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 : 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; + }; + }; -- cgit v1.2.3