holtek,ht16k33.yaml (2917B)
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 7title: Holtek HT16K33 RAM mapping 16*8 LED controller with keyscan 8 9maintainers: 10 - Robin van der Gracht <robin@protonic.nl> 11 12allOf: 13 - $ref: "/schemas/input/matrix-keymap.yaml#" 14 15properties: 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 description: Disable keyrepeat 44 45 default-brightness-level: 46 minimum: 1 47 maximum: 16 48 default: 16 49 description: Initial brightness level 50 51 led: 52 type: object 53 $ref: /schemas/leds/common.yaml# 54 unevaluatedProperties: false 55 56required: 57 - compatible 58 - reg 59 60if: 61 properties: 62 compatible: 63 const: holtek,ht16k33 64then: 65 required: 66 - refresh-rate-hz 67 68additionalProperties: false 69 70examples: 71 - | 72 #include <dt-bindings/interrupt-controller/irq.h> 73 #include <dt-bindings/input/input.h> 74 #include <dt-bindings/leds/common.h> 75 i2c1 { 76 #address-cells = <1>; 77 #size-cells = <0>; 78 79 ht16k33: ht16k33@70 { 80 compatible = "holtek,ht16k33"; 81 reg = <0x70>; 82 refresh-rate-hz = <20>; 83 interrupt-parent = <&gpio4>; 84 interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>; 85 debounce-delay-ms = <50>; 86 linux,keymap = <MATRIX_KEY(2, 0, KEY_F6)>, 87 <MATRIX_KEY(3, 0, KEY_F8)>, 88 <MATRIX_KEY(4, 0, KEY_F10)>, 89 <MATRIX_KEY(5, 0, KEY_F4)>, 90 <MATRIX_KEY(6, 0, KEY_F2)>, 91 <MATRIX_KEY(2, 1, KEY_F5)>, 92 <MATRIX_KEY(3, 1, KEY_F7)>, 93 <MATRIX_KEY(4, 1, KEY_F9)>, 94 <MATRIX_KEY(5, 1, KEY_F3)>, 95 <MATRIX_KEY(6, 1, KEY_F1)>; 96 97 led { 98 color = <LED_COLOR_ID_RED>; 99 function = LED_FUNCTION_BACKLIGHT; 100 linux,default-trigger = "backlight"; 101 }; 102 }; 103 };