| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [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/input/samsung,s3c6410-keypad.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Samsung SoC series Keypad Controller |
| 8 | |
| 9 | description: |
| 10 | Samsung SoC Keypad controller is used to interface a SoC with a matrix-type |
| 11 | keypad device. The keypad controller supports multiple row and column lines. |
| 12 | A key can be placed at each intersection of a unique row and a unique column. |
| 13 | The keypad controller can sense a key-press and key-release and report the |
| 14 | event using a interrupt to the cpu. |
| 15 | |
| 16 | maintainers: |
| 17 | - Krzysztof Kozlowski <krzk@kernel.org> |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | enum: |
| 22 | - samsung,s3c6410-keypad |
| 23 | - samsung,s5pv210-keypad |
| 24 | |
| 25 | reg: |
| 26 | maxItems: 1 |
| 27 | |
| 28 | clocks: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | clock-names: |
| 32 | items: |
| 33 | - const: keypad |
| 34 | |
| 35 | interrupts: |
| 36 | maxItems: 1 |
| 37 | |
| 38 | wakeup-source: true |
| 39 | |
| 40 | linux,input-no-autorepeat: |
| 41 | type: boolean |
| 42 | description: |
| 43 | Do no enable autorepeat feature. |
| 44 | |
| 45 | linux,input-wakeup: |
| 46 | type: boolean |
| 47 | deprecated: true |
| 48 | |
| 49 | samsung,keypad-num-columns: |
| 50 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 51 | description: |
| 52 | Number of column lines connected to the keypad controller. |
| 53 | |
| 54 | samsung,keypad-num-rows: |
| 55 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 56 | description: |
| 57 | Number of row lines connected to the keypad controller. |
| 58 | |
| 59 | patternProperties: |
| 60 | '^key-[0-9a-z]+$': |
| 61 | type: object |
| 62 | $ref: input.yaml# |
| 63 | additionalProperties: false |
| 64 | description: |
| 65 | Each key connected to the keypad controller is represented as a child |
| 66 | node to the keypad controller device node. |
| 67 | |
| 68 | properties: |
| 69 | keypad,column: |
| 70 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 71 | description: The column number to which the key is connected. |
| 72 | |
| 73 | keypad,row: |
| 74 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 75 | description: The row number to which the key is connected. |
| 76 | |
| 77 | linux,code: true |
| 78 | |
| 79 | required: |
| 80 | - keypad,column |
| 81 | - keypad,row |
| 82 | - linux,code |
| 83 | |
| 84 | required: |
| 85 | - compatible |
| 86 | - reg |
| 87 | - interrupts |
| 88 | - samsung,keypad-num-columns |
| 89 | - samsung,keypad-num-rows |
| 90 | |
| 91 | additionalProperties: false |
| 92 | |
| 93 | examples: |
| 94 | - | |
| 95 | #include <dt-bindings/clock/exynos4.h> |
| 96 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 97 | |
| 98 | keypad@100a0000 { |
| 99 | compatible = "samsung,s5pv210-keypad"; |
| 100 | reg = <0x100a0000 0x100>; |
| 101 | interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>; |
| 102 | clocks = <&clock CLK_KEYIF>; |
| 103 | clock-names = "keypad"; |
| 104 | |
| 105 | samsung,keypad-num-rows = <2>; |
| 106 | samsung,keypad-num-columns = <8>; |
| 107 | linux,input-no-autorepeat; |
| 108 | wakeup-source; |
| 109 | |
| 110 | key-1 { |
| 111 | keypad,row = <0>; |
| 112 | keypad,column = <3>; |
| 113 | linux,code = <2>; |
| 114 | }; |
| 115 | |
| 116 | key-2 { |
| 117 | keypad,row = <0>; |
| 118 | keypad,column = <4>; |
| 119 | linux,code = <3>; |
| 120 | }; |
| 121 | }; |