| Dudley Du | ddbb299 | 2015-07-30 11:24:16 -0700 | [diff] [blame] | 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"; |
| Dudley Du | b0379d7 | 2015-09-19 10:39:32 -0700 | [diff] [blame] | 28 | reg = <0x67>; |
| Dudley Du | ddbb299 | 2015-07-30 11:24:16 -0700 | [diff] [blame] | 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 | }; |