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|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/samsung,s3c6410-keypad.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Samsung SoC series Keypad Controller
description:
Samsung SoC Keypad controller is used to interface a SoC with a matrix-type
keypad device. The keypad controller supports multiple row and column lines.
A key can be placed at each intersection of a unique row and a unique column.
The keypad controller can sense a key-press and key-release and report the
event using a interrupt to the cpu.
maintainers:
- Krzysztof Kozlowski <krzk@kernel.org>
properties:
compatible:
enum:
- samsung,s3c6410-keypad
- samsung,s5pv210-keypad
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
items:
- const: keypad
interrupts:
maxItems: 1
wakeup-source: true
linux,input-no-autorepeat:
type: boolean
description:
Do no enable autorepeat feature.
linux,input-wakeup:
type: boolean
deprecated: true
samsung,keypad-num-columns:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Number of column lines connected to the keypad controller.
samsung,keypad-num-rows:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Number of row lines connected to the keypad controller.
patternProperties:
'^key-[0-9a-z]+$':
type: object
$ref: input.yaml#
additionalProperties: false
description:
Each key connected to the keypad controller is represented as a child
node to the keypad controller device node.
properties:
keypad,column:
$ref: /schemas/types.yaml#/definitions/uint32
description: The column number to which the key is connected.
keypad,row:
$ref: /schemas/types.yaml#/definitions/uint32
description: The row number to which the key is connected.
linux,code: true
required:
- keypad,column
- keypad,row
- linux,code
required:
- compatible
- reg
- interrupts
- samsung,keypad-num-columns
- samsung,keypad-num-rows
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/exynos4.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
keypad@100a0000 {
compatible = "samsung,s5pv210-keypad";
reg = <0x100a0000 0x100>;
interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_KEYIF>;
clock-names = "keypad";
samsung,keypad-num-rows = <2>;
samsung,keypad-num-columns = <8>;
linux,input-no-autorepeat;
wakeup-source;
key-1 {
keypad,row = <0>;
keypad,column = <3>;
linux,code = <2>;
};
key-2 {
keypad,row = <0>;
keypad,column = <4>;
linux,code = <3>;
};
};
|
