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1* Rohm BU21013 Touch Screen2 3Required properties:4 - compatible : "rohm,bu21013_tp"5 - reg : I2C device address6 - reset-gpios : GPIO pin enabling (selecting) chip (CS)7 - interrupt-parent : the phandle for the gpio controller8 - interrupts : (gpio) interrupt to which the chip is connected9 10Optional properties:11 - touch-gpios : GPIO pin registering a touch event12 - <supply_name>-supply : Phandle to a regulator supply13 - touchscreen-size-x : General touchscreen binding, see [1].14 - touchscreen-size-y : General touchscreen binding, see [1].15 - touchscreen-inverted-x : General touchscreen binding, see [1].16 - touchscreen-inverted-y : General touchscreen binding, see [1].17 - touchscreen-swapped-x-y : General touchscreen binding, see [1].18 19[1] All general touchscreen properties are described in20 Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt.21 22Deprecated properties:23 - rohm,touch-max-x : Maximum outward permitted limit in the X axis24 - rohm,touch-max-y : Maximum outward permitted limit in the Y axis25 - rohm,flip-x : Flip touch coordinates on the X axis26 - rohm,flip-y : Flip touch coordinates on the Y axis27 28Example:29 30 i2c@80110000 {31 bu21013_tp@5c {32 compatible = "rohm,bu21013_tp";33 reg = <0x5c>;34 interrupt-parent = <&gpio2>;35 interrupts <&20 IRQ_TYPE_LEVEL_LOW>;36 touch-gpio = <&gpio2 20 GPIO_ACTIVE_LOW>;37 avdd-supply = <&ab8500_ldo_aux1_reg>;38 39 touchscreen-size-x = <384>;40 touchscreen-size-y = <704>;41 touchscreen-inverted-y;42 };43 };44