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Elantech I2C Touchscreen
Required properties:
- compatible: must be "elan,ekth3500".
- reg: I2C address of the chip.
- interrupt-parent: a phandle for the interrupt controller (see interrupt
binding[0]).
- interrupts: interrupt to which the chip is connected (see interrupt
binding[0]).
Optional properties:
- wakeup-source: touchscreen can be used as a wakeup source.
- pinctrl-names: should be "default" (see pinctrl binding [1]).
- pinctrl-0: a phandle pointing to the pin settings for the device (see
pinctrl binding [1]).
- reset-gpios: reset gpio the chip is connected to.
- vcc33-supply: a phandle for the regulator supplying 3.3V power.
- vccio-supply: a phandle for the regulator supplying IO power.
[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
Example:
&i2c1 {
/* ... */
touchscreen@10 {
compatible = "elan,ekth3500";
reg = <0x10>;
interrupt-parent = <&gpio4>;
interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
wakeup-source;
};
/* ... */
};
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