projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| ddbb299d DD |
1 | Cypress I2C Touchpad |
| 2 | ||
| 3 | Required properties: | |
| 4 | - compatible: must be "cypress,cyapa". | |
| 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 | &i2c0 { | |
| 23 | /* ... */ | |
| 24 | ||
| 25 | /* Cypress Gen3 touchpad */ | |
| 26 | touchpad@67 { | |
| 27 | compatible = "cypress,cyapa"; | |
| b0379d7a | 28 | reg = <0x67>; |
| ddbb299d DD |
29 | interrupt-parent = <&gpio>; |
| 30 | interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */ | |
| 31 | wakeup-source; | |
| 32 | }; | |
| 33 | ||
| 34 | /* Cypress Gen5 and later touchpad */ | |
| 35 | touchpad@24 { | |
| 36 | compatible = "cypress,cyapa"; | |
| 37 | reg = <0x24>; | |
| 38 | interrupt-parent = <&gpio>; | |
| 39 | interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */ | |
| 40 | wakeup-source; | |
| 41 | }; | |
| 42 | ||
| 43 | /* ... */ | |
| 44 | }; |