| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/auxdisplay/holtek,ht16k33.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Holtek HT16K33 RAM mapping 16*8 LED controller with keyscan |
| 8 | |
| 9 | maintainers: |
| 10 | - Robin van der Gracht <robin@protonic.nl> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: /schemas/input/matrix-keymap.yaml# |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | oneOf: |
| 18 | - items: |
| 19 | - enum: |
| 20 | - adafruit,3108 # 0.56" 4-Digit 7-Segment FeatherWing Display (Red) |
| 21 | - adafruit,3130 # 0.54" Quad Alphanumeric FeatherWing Display (Red) |
| 22 | - const: holtek,ht16k33 |
| 23 | |
| 24 | - const: holtek,ht16k33 # Generic 16*8 LED controller with dot-matrix display |
| 25 | |
| 26 | reg: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | refresh-rate-hz: |
| 30 | maxItems: 1 |
| 31 | description: Display update interval in Hertz for dot-matrix displays |
| 32 | |
| 33 | interrupts: |
| 34 | maxItems: 1 |
| 35 | |
| 36 | debounce-delay-ms: |
| 37 | maxItems: 1 |
| 38 | description: Debouncing interval time in milliseconds |
| 39 | |
| 40 | linux,keymap: true |
| 41 | |
| 42 | linux,no-autorepeat: |
| 43 | type: boolean |
| 44 | description: Disable keyrepeat |
| 45 | |
| 46 | default-brightness-level: |
| 47 | minimum: 1 |
| 48 | maximum: 16 |
| 49 | default: 16 |
| 50 | description: Initial brightness level |
| 51 | |
| 52 | led: |
| 53 | type: object |
| 54 | $ref: /schemas/leds/common.yaml# |
| 55 | unevaluatedProperties: false |
| 56 | |
| 57 | required: |
| 58 | - compatible |
| 59 | - reg |
| 60 | |
| 61 | if: |
| 62 | properties: |
| 63 | compatible: |
| 64 | const: holtek,ht16k33 |
| 65 | then: |
| 66 | required: |
| 67 | - refresh-rate-hz |
| 68 | |
| 69 | additionalProperties: false |
| 70 | |
| 71 | examples: |
| 72 | - | |
| 73 | #include <dt-bindings/interrupt-controller/irq.h> |
| 74 | #include <dt-bindings/input/input.h> |
| 75 | #include <dt-bindings/leds/common.h> |
| 76 | i2c { |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 77 | #address-cells = <1>; |
| 78 | #size-cells = <0>; |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 79 | |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 80 | display-controller@70 { |
| 81 | compatible = "holtek,ht16k33"; |
| 82 | reg = <0x70>; |
| 83 | refresh-rate-hz = <20>; |
| 84 | interrupt-parent = <&gpio4>; |
| 85 | interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>; |
| 86 | debounce-delay-ms = <50>; |
| 87 | linux,keymap = <MATRIX_KEY(2, 0, KEY_F6)>, |
| 88 | <MATRIX_KEY(3, 0, KEY_F8)>, |
| 89 | <MATRIX_KEY(4, 0, KEY_F10)>, |
| 90 | <MATRIX_KEY(5, 0, KEY_F4)>, |
| 91 | <MATRIX_KEY(6, 0, KEY_F2)>, |
| 92 | <MATRIX_KEY(2, 1, KEY_F5)>, |
| 93 | <MATRIX_KEY(3, 1, KEY_F7)>, |
| 94 | <MATRIX_KEY(4, 1, KEY_F9)>, |
| 95 | <MATRIX_KEY(5, 1, KEY_F3)>, |
| 96 | <MATRIX_KEY(6, 1, KEY_F1)>; |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 97 | |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 98 | led { |
| 99 | color = <LED_COLOR_ID_RED>; |
| 100 | function = LED_FUNCTION_BACKLIGHT; |
| 101 | linux,default-trigger = "backlight"; |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 102 | }; |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 103 | }; |
| 104 | }; |