1 Samsung tm2-touchkey
2
3 Required properties:
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
7 * "cypress,aries-touchkey" - for the touchkey found on aries boards
8 * "coreriver,tc360-touchkey" - for the Coreriver TouchCore 360 touchkey
9 - reg: I2C address of the chip.
10 - interrupts: interrupt to which the chip is connected (see interrupt
11 binding[0]).
12 - vcc-supply : internal regulator output. 1.8V
13 - vdd-supply : power supply for IC 3.3V
14
15 Optional properties:
16 - linux,keycodes: array of keycodes (max 4), default KEY_PHONE and KEY_BACK
17
18 [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
19
20 Example:
21 &i2c0 {
22 /* ... */
23
24 touchkey@20 {
25 compatible = "cypress,tm2-touchkey";
26 reg = <0x20>;
27 interrupt-parent = <&gpa3>;
28 interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
29 vcc-supply=<&ldo32_reg>;
30 vdd-supply=<&ldo33_reg>;
31 linux,keycodes = <KEY_PHONE KEY_BACK>;
32 };
33 };
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