projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 6696777c DL |
1 | Elantech I2C Touchpad |
| 2 | ||
| 3 | Required properties: | |
| 4 | - compatible: must be "elan,ekth3000". | |
| 5 | - reg: I2C address of the chip. | |
| 6 | - interrupt-parent: a phandle for the interrupt controller (see interrupt | |
| 7 | binding[0]). | |
| 8 | - interrupts: interrupt to which the chip is connected (see interrupt | |
| 9 | binding[0]). | |
| 10 | ||
| 11 | Optional properties: | |
| 12 | - wakeup-source: touchpad can be used as a wakeup source. | |
| 13 | - pinctrl-names: should be "default" (see pinctrl binding [1]). | |
| 14 | - pinctrl-0: a phandle pointing to the pin settings for the device (see | |
| 15 | pinctrl binding [1]). | |
| 16 | - vcc-supply: a phandle for the regulator supplying 3.3V power. | |
| 17 | ||
| 18 | [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt | |
| 19 | [1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt | |
| 20 | ||
| 21 | Example: | |
| 22 | &i2c1 { | |
| 23 | /* ... */ | |
| 24 | ||
| 25 | touchpad@15 { | |
| 26 | compatible = "elan,ekth3000"; | |
| 27 | reg = <0x15>; | |
| 28 | interrupt-parent = <&gpio4>; | |
| 29 | interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>; | |
| 30 | wakeup-source; | |
| 31 | }; | |
| 32 | ||
| 33 | /* ... */ | |
| 34 | }; |