74 lines
1.7 KiB
YAML
74 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/input/cypress,tm2-touchkey.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Samsung TM2 touch key controller
|
|
|
|
maintainers:
|
|
- Stephan Gerhold <stephan@gerhold.net>
|
|
|
|
description: |
|
|
Touch key controllers similar to the TM2 can be found in a wide range of
|
|
Samsung devices. They are implemented using many different MCUs, but use
|
|
a similar I2C protocol.
|
|
|
|
allOf:
|
|
- $ref: input.yaml#
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- cypress,tm2-touchkey
|
|
- cypress,midas-touchkey
|
|
- cypress,aries-touchkey
|
|
- coreriver,tc360-touchkey
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
vdd-supply:
|
|
description: Optional regulator for LED voltage, 3.3V.
|
|
|
|
vcc-supply:
|
|
description: Optional regulator for MCU, 1.8V-3.3V (depending on MCU).
|
|
|
|
vddio-supply:
|
|
description: |
|
|
Optional regulator that provides digital I/O voltage,
|
|
e.g. for pulling up the interrupt line or the I2C pins.
|
|
|
|
linux,keycodes:
|
|
minItems: 1
|
|
maxItems: 4
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/input/input.h>
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
i2c {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
touchkey@20 {
|
|
compatible = "cypress,tm2-touchkey";
|
|
reg = <0x20>;
|
|
interrupt-parent = <&gpa3>;
|
|
interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
|
|
vcc-supply = <&ldo32_reg>;
|
|
vdd-supply = <&ldo33_reg>;
|
|
linux,keycodes = <KEY_MENU KEY_BACK>;
|
|
};
|
|
};
|