projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a93ad65d HG |
1 | * ChipOne icn8318 I2C touchscreen controller |
| 2 | ||
| 3 | Required 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 | ||
| 13 | Optional 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 | ||
| 26 | Example: | |
| 27 | ||
| 28 | i2c@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 | }; |