[deliverable/linux.git] / Documentation / devicetree / bindings / input / elants_i2c.txt

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;
		};

		/* ... */
	};
Commit	Line	Data
66aee900 SL	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]).
afe10358 DT	16	- reset-gpios: reset gpio the chip is connected to.
	17	- vcc33-supply: a phandle for the regulator supplying 3.3V power.
	18	- vccio-supply: a phandle for the regulator supplying IO power.
66aee900 SL	19
	20	[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
	21	[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
	22
	23	Example:
	24	&i2c1 {
	25	/* ... */
	26
	27	touchscreen@10 {
	28	compatible = "elan,ekth3500";
	29	reg = <0x10>;
	30	interrupt-parent = <&gpio4>;
	31	interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
	32	wakeup-source;
	33	};
	34
	35	/* ... */
	36	};