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