44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
* Rohm BU21013 Touch Screen
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Required properties:
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- compatible : "rohm,bu21013_tp"
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- reg : I2C device address
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- reset-gpios : GPIO pin enabling (selecting) chip (CS)
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- interrupt-parent : the phandle for the gpio controller
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- interrupts : (gpio) interrupt to which the chip is connected
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Optional properties:
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- touch-gpios : GPIO pin registering a touch event
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- <supply_name>-supply : Phandle to a regulator supply
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- touchscreen-size-x : General touchscreen binding, see [1].
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- touchscreen-size-y : General touchscreen binding, see [1].
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- touchscreen-inverted-x : General touchscreen binding, see [1].
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- touchscreen-inverted-y : General touchscreen binding, see [1].
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- touchscreen-swapped-x-y : General touchscreen binding, see [1].
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[1] All general touchscreen properties are described in
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Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt.
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Deprecated properties:
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- rohm,touch-max-x : Maximum outward permitted limit in the X axis
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- rohm,touch-max-y : Maximum outward permitted limit in the Y axis
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- rohm,flip-x : Flip touch coordinates on the X axis
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- rohm,flip-y : Flip touch coordinates on the Y axis
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Example:
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i2c@80110000 {
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bu21013_tp@5c {
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compatible = "rohm,bu21013_tp";
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reg = <0x5c>;
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interrupt-parent = <&gpio2>;
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interrupts <&20 IRQ_TYPE_LEVEL_LOW>;
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touch-gpio = <&gpio2 20 GPIO_ACTIVE_LOW>;
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avdd-supply = <&ab8500_ldo_aux1_reg>;
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touchscreen-size-x = <384>;
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touchscreen-size-y = <704>;
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touchscreen-inverted-y;
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};
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};
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