1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/input/cypress,tm2-touchkey.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Samsung TM2 touch key controller
10 - Stephan Gerhold <stephan@gerhold.net>
13 Touch key controllers similar to the TM2 can be found in a wide range of
14 Samsung devices. They are implemented using many different MCUs, but use
15 a similar I2C protocol.
23 - cypress,tm2-touchkey
24 - cypress,midas-touchkey
25 - cypress,aries-touchkey
26 - coreriver,tc360-touchkey
35 description: Optional regulator for LED voltage, 3.3V.
38 description: Optional regulator for MCU, 1.8V-3.3V (depending on MCU).
42 Optional regulator that provides digital I/O voltage,
43 e.g. for pulling up the interrupt line or the I2C pins.
54 additionalProperties: false
58 #include <dt-bindings/input/input.h>
59 #include <dt-bindings/interrupt-controller/irq.h>
65 compatible = "cypress,tm2-touchkey";
67 interrupt-parent = <&gpa3>;
68 interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
69 vcc-supply = <&ldo32_reg>;
70 vdd-supply = <&ldo33_reg>;
71 linux,keycodes = <KEY_MENU KEY_BACK>;