1* ChipOne icn8318 I2C touchscreen controller
2
3Required properties:
4 - compatible		  : "chipone,icn8318"
5 - reg			  : I2C slave address of the chip (0x40)
6 - interrupt-parent	  : a phandle pointing to the interrupt controller
7			    serving the interrupt for this chip
8 - interrupts		  : interrupt specification for the icn8318 interrupt
9 - wake-gpios		  : GPIO specification for the WAKE input
10 - touchscreen-size-x	  : horizontal resolution of touchscreen (in pixels)
11 - touchscreen-size-y	  : vertical resolution of touchscreen (in pixels)
12
13Optional properties:
14 - pinctrl-names	  : should be "default"
15 - pinctrl-0:		  : a phandle pointing to the pin settings for the
16			    control gpios
17 - touchscreen-fuzz-x	  : horizontal noise value of the absolute input
18			    device (in pixels)
19 - touchscreen-fuzz-y	  : vertical noise value of the absolute input
20			    device (in pixels)
21 - touchscreen-inverted-x : X axis is inverted (boolean)
22 - touchscreen-inverted-y : Y axis is inverted (boolean)
23 - touchscreen-swapped-x-y	  : X and Y axis are swapped (boolean)
24			    Swapping is done after inverting the axis
25
26Example:
27
28i2c@00000000 {
29	/* ... */
30
31	chipone_icn8318@40 {
32		compatible = "chipone,icn8318";
33		reg = <0x40>;
34		interrupt-parent = <&pio>;
35		interrupts = <9 IRQ_TYPE_EDGE_FALLING>; /* EINT9 (PG9) */
36		pinctrl-names = "default";
37		pinctrl-0 = <&ts_wake_pin_p66>;
38		wake-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
39		touchscreen-size-x = <800>;
40		touchscreen-size-y = <480>;
41		touchscreen-inverted-x;
42		touchscreen-swapped-x-y;
43	};
44
45	/* ... */
46};
47