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103 lines
2.8 KiB
103 lines
2.8 KiB
# 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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$id: http://devicetree.org/schemas/auxdisplay/holtek,ht16k33.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Holtek HT16K33 RAM mapping 16*8 LED controller with keyscan |
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maintainers: |
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- Robin van der Gracht <[email protected]> |
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allOf: |
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- $ref: "/schemas/input/matrix-keymap.yaml#" |
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properties: |
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compatible: |
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oneOf: |
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- items: |
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- enum: |
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- adafruit,3108 # 0.56" 4-Digit 7-Segment FeatherWing Display (Red) |
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- adafruit,3130 # 0.54" Quad Alphanumeric FeatherWing Display (Red) |
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- const: holtek,ht16k33 |
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- const: holtek,ht16k33 # Generic 16*8 LED controller with dot-matrix display |
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reg: |
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maxItems: 1 |
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refresh-rate-hz: |
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maxItems: 1 |
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description: Display update interval in Hertz for dot-matrix displays |
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interrupts: |
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maxItems: 1 |
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debounce-delay-ms: |
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maxItems: 1 |
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description: Debouncing interval time in milliseconds |
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linux,keymap: true |
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linux,no-autorepeat: |
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description: Disable keyrepeat |
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default-brightness-level: |
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minimum: 1 |
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maximum: 16 |
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default: 16 |
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description: Initial brightness level |
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led: |
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type: object |
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$ref: /schemas/leds/common.yaml# |
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unevaluatedProperties: false |
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required: |
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- compatible |
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- reg |
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if: |
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properties: |
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compatible: |
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const: holtek,ht16k33 |
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then: |
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required: |
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- refresh-rate-hz |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/irq.h> |
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#include <dt-bindings/input/input.h> |
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#include <dt-bindings/leds/common.h> |
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i2c1 { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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ht16k33: ht16k33@70 { |
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compatible = "holtek,ht16k33"; |
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reg = <0x70>; |
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refresh-rate-hz = <20>; |
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interrupt-parent = <&gpio4>; |
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interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>; |
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debounce-delay-ms = <50>; |
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linux,keymap = <MATRIX_KEY(2, 0, KEY_F6)>, |
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<MATRIX_KEY(3, 0, KEY_F8)>, |
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<MATRIX_KEY(4, 0, KEY_F10)>, |
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<MATRIX_KEY(5, 0, KEY_F4)>, |
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<MATRIX_KEY(6, 0, KEY_F2)>, |
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<MATRIX_KEY(2, 1, KEY_F5)>, |
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<MATRIX_KEY(3, 1, KEY_F7)>, |
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<MATRIX_KEY(4, 1, KEY_F9)>, |
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<MATRIX_KEY(5, 1, KEY_F3)>, |
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<MATRIX_KEY(6, 1, KEY_F1)>; |
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led { |
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color = <LED_COLOR_ID_RED>; |
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function = LED_FUNCTION_BACKLIGHT; |
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linux,default-trigger = "backlight"; |
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}; |
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}; |
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};
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