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78 lines
1.7 KiB
YAML
78 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/mediatek,mt6779-keypad.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Mediatek's Keypad Controller device tree bindings
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maintainers:
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- Fengping Yu <fengping.yu@mediatek.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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Mediatek's Keypad controller is used to interface a SoC with a matrix-type
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keypad device. The keypad controller supports multiple row and column lines.
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A key can be placed at each intersection of a unique row and a unique column.
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The keypad controller can sense a key-press and key-release and report the
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event using a interrupt to the cpu.
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properties:
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compatible:
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oneOf:
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- const: mediatek,mt6779-keypad
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- items:
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- enum:
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- mediatek,mt6873-keypad
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- const: mediatek,mt6779-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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clock-names:
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items:
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- const: kpd
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wakeup-source:
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description: use any event on keypad as wakeup event
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type: boolean
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debounce-delay-ms:
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maximum: 256
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default: 16
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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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- clock-names
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additionalProperties: 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/interrupt-controller/arm-gic.h>
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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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keyboard@10010000 {
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compatible = "mediatek,mt6779-keypad";
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reg = <0 0x10010000 0 0x1000>;
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interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_FALLING>;
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clocks = <&clk26m>;
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clock-names = "kpd";
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};
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};
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