2014-10-04 03:24:27 +07:00
|
|
|
Elantech I2C Touchpad
|
|
|
|
|
|
|
|
Required properties:
|
|
|
|
- compatible: must be "elan,ekth3000".
|
|
|
|
- reg: I2C address of the chip.
|
|
|
|
- interrupts: interrupt to which the chip is connected (see interrupt
|
|
|
|
binding[0]).
|
|
|
|
|
|
|
|
Optional properties:
|
|
|
|
- wakeup-source: touchpad 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]).
|
|
|
|
- vcc-supply: a phandle for the regulator supplying 3.3V power.
|
2018-05-23 07:23:04 +07:00
|
|
|
- elan,trackpoint: touchpad can support a trackpoint (boolean)
|
2014-10-04 03:24:27 +07:00
|
|
|
|
|
|
|
[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
|
|
|
|
[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
|
|
|
|
|
|
|
|
Example:
|
|
|
|
&i2c1 {
|
|
|
|
/* ... */
|
|
|
|
|
|
|
|
touchpad@15 {
|
|
|
|
compatible = "elan,ekth3000";
|
|
|
|
reg = <0x15>;
|
|
|
|
interrupt-parent = <&gpio4>;
|
|
|
|
interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
|
|
|
|
wakeup-source;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* ... */
|
|
|
|
};
|