summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/input/elan_i2c.txt
blob: 797607460735a295994527aa536822e69ca35e3f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
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.
- elan,trackpoint: touchpad can support a trackpoint (boolean)

[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;
		};

		/* ... */
	};