Input: add support for Elan eKTH I2C touchscreens
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / input / elants_i2c.txt
1 Elantech I2C Touchscreen
2
3 Required properties:
4 - compatible: must be "elan,ekth3500".
5 - reg: I2C address of the chip.
6 - interrupt-parent: a phandle for the interrupt controller (see interrupt
7   binding[0]).
8 - interrupts: interrupt to which the chip is connected (see interrupt
9   binding[0]).
10
11 Optional properties:
12 - wakeup-source: touchscreen can be used as a wakeup source.
13 - pinctrl-names: should be "default" (see pinctrl binding [1]).
14 - pinctrl-0: a phandle pointing to the pin settings for the device (see
15   pinctrl binding [1]).
16
17 [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
18 [1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
19
20 Example:
21         &i2c1 {
22                 /* ... */
23
24                 touchscreen@10 {
25                         compatible = "elan,ekth3500";
26                         reg = <0x10>;
27                         interrupt-parent = <&gpio4>;
28                         interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
29                         wakeup-source;
30                 };
31
32                 /* ... */
33         };