| * ChipOne icn8318 I2C touchscreen controller |
| |
| Required properties: |
| - compatible : "chipone,icn8318" |
| - reg : I2C slave address of the chip (0x40) |
| - 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; |
| }; |
| |
| /* ... */ |
| }; |
