88 lines
2.3 KiB
YAML
88 lines
2.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/cirrus,ep9307-keypad.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Cirrus ep93xx keypad
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maintainers:
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- Alexander Sverdlin <alexander.sverdlin@gmail.com>
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allOf:
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- $ref: /schemas/input/matrix-keymap.yaml#
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description:
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The KPP is designed to interface with a keypad matrix with 2-point contact
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or 3-point contact keys. The KPP is designed to simplify the software task
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of scanning a keypad matrix. The KPP is capable of detecting, debouncing,
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and decoding one or multiple keys pressed simultaneously on a keypad.
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properties:
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compatible:
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oneOf:
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- const: cirrus,ep9307-keypad
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- items:
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- enum:
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- cirrus,ep9312-keypad
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- cirrus,ep9315-keypad
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- const: cirrus,ep9307-keypad
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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debounce-delay-ms:
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description: |
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Time in microseconds that key must be pressed or
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released for state change interrupt to trigger.
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cirrus,prescale:
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description: row/column counter pre-scaler load value
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$ref: /schemas/types.yaml#/definitions/uint16
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maximum: 1023
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- linux,keymap
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/clock/cirrus,ep9301-syscon.h>
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keypad@800f0000 {
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compatible = "cirrus,ep9307-keypad";
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reg = <0x800f0000 0x0c>;
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interrupt-parent = <&vic0>;
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interrupts = <29>;
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clocks = <&eclk EP93XX_CLK_KEYPAD>;
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pinctrl-names = "default";
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pinctrl-0 = <&keypad_default_pins>;
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linux,keymap = <KEY_UP>,
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<KEY_DOWN>,
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<KEY_VOLUMEDOWN>,
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<KEY_HOME>,
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<KEY_RIGHT>,
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<KEY_LEFT>,
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<KEY_ENTER>,
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<KEY_VOLUMEUP>,
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<KEY_F6>,
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<KEY_F8>,
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<KEY_F9>,
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<KEY_F10>,
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<KEY_F1>,
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<KEY_F2>,
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<KEY_F3>,
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<KEY_POWER>;
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};
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