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* Rohm BU21013 Touch Screen
Required properties:
- compatible : "rohm,bu21013_tp"
- reg : I2C device address
- reset-gpios : GPIO pin enabling (selecting) chip (CS)
- interrupt-parent : the phandle for the gpio controller
- interrupts : (gpio) interrupt to which the chip is connected
Optional properties:
- touch-gpios : GPIO pin registering a touch event
- <supply_name>-supply : Phandle to a regulator supply
- touchscreen-size-x : General touchscreen binding, see [1].
- touchscreen-size-y : General touchscreen binding, see [1].
- touchscreen-inverted-x : General touchscreen binding, see [1].
- touchscreen-inverted-y : General touchscreen binding, see [1].
- touchscreen-swapped-x-y : General touchscreen binding, see [1].
[1] All general touchscreen properties are described in
Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt.
Deprecated properties:
- 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@5c {
compatible = "rohm,bu21013_tp";
reg = <0x5c>;
interrupt-parent = <&gpio2>;
interrupts <&20 IRQ_TYPE_LEVEL_LOW>;
touch-gpio = <&gpio2 20 GPIO_ACTIVE_LOW>;
avdd-supply = <&ab8500_ldo_aux1_reg>;
touchscreen-size-x = <384>;
touchscreen-size-y = <704>;
touchscreen-inverted-y;
};
};
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