projects / mirror_ubuntu-kernels.git / blame
| Commit | Line | Data |
|---|---|---|
| 72d1f234 JL |
1 | Samsung tm2-touchkey |
| 2 | ||
| 3 | Required properties: | |
| d6f66f61 SS |
4 | - compatible: |
| 5 | * "cypress,tm2-touchkey" - for the touchkey found on the tm2 board | |
| 6 | * "cypress,midas-touchkey" - for the touchkey found on midas boards | |
| 1cdbd3e5 | 7 | * "cypress,aries-touchkey" - for the touchkey found on aries boards |
| 72d1f234 | 8 | - reg: I2C address of the chip. |
| 72d1f234 JL |
9 | - interrupts: interrupt to which the chip is connected (see interrupt |
| 10 | binding[0]). | |
| 11 | - vcc-supply : internal regulator output. 1.8V | |
| 12 | - vdd-supply : power supply for IC 3.3V | |
| 13 | ||
| 07df1c55 JB |
14 | Optional properties: |
| 15 | - linux,keycodes: array of keycodes (max 4), default KEY_PHONE and KEY_BACK | |
| 16 | ||
| 72d1f234 JL |
17 | [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt |
| 18 | ||
| 19 | Example: | |
| 20 | &i2c0 { | |
| 21 | /* ... */ | |
| 22 | ||
| 23 | touchkey@20 { | |
| 24 | compatible = "cypress,tm2-touchkey"; | |
| 25 | reg = <0x20>; | |
| 26 | interrupt-parent = <&gpa3>; | |
| 27 | interrupts = <2 IRQ_TYPE_EDGE_FALLING>; | |
| 28 | vcc-supply=<&ldo32_reg>; | |
| 29 | vdd-supply=<&ldo33_reg>; | |
| 07df1c55 | 30 | linux,keycodes = <KEY_PHONE KEY_BACK>; |
| 72d1f234 JL |
31 | }; |
| 32 | }; |