Kernel-4.18.0-80.el8_chipone_icn8318

• ChipOne icn8318 I2C touchscreen controller

Required properties:

• compatible : “chipone,icn8318”
• reg : I2C slave address of the chip (0x40)
• interrupt-parent : a phandle pointing to the interrupt controller

           serving the interrupt for this chip
  

• interrupts : interrupt specification for the icn8318 interrupt
• wake-gpios : GPIO specification for the WAKE input
• touchscreen-size-x : horizontal resolution of touchscreen (in pixels)
• touchscreen-size-y : vertical resolution of touchscreen (in pixels)

Optional properties:

• pinctrl-names : should be “default”
• pinctrl-0: : a phandle pointing to the pin settings for the

           control gpios
  

• touchscreen-fuzz-x : horizontal noise value of the absolute input

           device (in pixels)
  

• touchscreen-fuzz-y : vertical noise value of the absolute input

           device (in pixels)
  

• touchscreen-inverted-x : X axis is inverted (boolean)
• touchscreen-inverted-y : Y axis is inverted (boolean)
• touchscreen-swapped-x-y : X and Y axis are swapped (boolean)

           Swapping is done after inverting the axis
  

Example:

i2c@00000000 {
/* … */

chipone_icn8318@40 {
    compatible = "chipone,icn8318";
    reg = <0x40>;
    interrupt-parent = <&pio>;
    interrupts = <9 IRQ_TYPE_EDGE_FALLING>; /* EINT9 (PG9) */
    pinctrl-names = "default";
    pinctrl-0 = <&ts_wake_pin_p66>;
    wake-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
    touchscreen-size-x = <800>;
    touchscreen-size-y = <480>;
    touchscreen-inverted-x;
    touchscreen-swapped-x-y;
};

/* ... */

};