| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/input/allwinner,sun4i-a10-lradc-keys.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Allwinner A10 LRADC |
| 8 | |
| 9 | maintainers: |
| 10 | - Chen-Yu Tsai <wens@csie.org> |
| 11 | - Maxime Ripard <mripard@kernel.org> |
| 12 | |
| 13 | properties: |
| 14 | compatible: |
| 15 | oneOf: |
| 16 | - const: allwinner,sun4i-a10-lradc-keys |
| 17 | - const: allwinner,sun8i-a83t-r-lradc |
| 18 | - items: |
| 19 | - enum: |
| 20 | - allwinner,suniv-f1c100s-lradc |
| 21 | - allwinner,sun50i-a64-lradc |
| 22 | - const: allwinner,sun8i-a83t-r-lradc |
| 23 | - const: allwinner,sun50i-r329-lradc |
| 24 | - items: |
| 25 | - const: allwinner,sun20i-d1-lradc |
| 26 | - const: allwinner,sun50i-r329-lradc |
| 27 | |
| 28 | reg: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | clocks: |
| 32 | maxItems: 1 |
| 33 | |
| 34 | resets: |
| 35 | maxItems: 1 |
| 36 | |
| 37 | interrupts: |
| 38 | maxItems: 1 |
| 39 | |
| 40 | vref-supply: |
| 41 | description: |
| 42 | Regulator for the LRADC reference voltage |
| 43 | |
| 44 | wakeup-source: true |
| 45 | |
| 46 | patternProperties: |
| 47 | "^button-[0-9]+$": |
| 48 | type: object |
| 49 | $ref: input.yaml# |
| 50 | properties: |
| 51 | label: |
| 52 | $ref: /schemas/types.yaml#/definitions/string |
| 53 | description: Descriptive name of the key |
| 54 | |
| 55 | linux,code: true |
| 56 | |
| 57 | channel: |
| 58 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 59 | enum: [0, 1] |
| 60 | description: ADC Channel this key is attached to |
| 61 | |
| 62 | voltage: |
| 63 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 64 | description: |
| 65 | Voltage in microvolts at LRADC input when this key is |
| 66 | pressed |
| 67 | |
| 68 | required: |
| 69 | - label |
| 70 | - linux,code |
| 71 | - channel |
| 72 | - voltage |
| 73 | |
| 74 | additionalProperties: false |
| 75 | |
| 76 | required: |
| 77 | - compatible |
| 78 | - reg |
| 79 | - interrupts |
| 80 | - vref-supply |
| 81 | |
| 82 | if: |
| 83 | properties: |
| 84 | compatible: |
| 85 | contains: |
| 86 | enum: |
| 87 | - allwinner,sun50i-r329-lradc |
| 88 | |
| 89 | then: |
| 90 | required: |
| 91 | - clocks |
| 92 | - resets |
| 93 | |
| 94 | additionalProperties: false |
| 95 | |
| 96 | examples: |
| 97 | - | |
| 98 | lradc: lradc@1c22800 { |
| 99 | compatible = "allwinner,sun4i-a10-lradc-keys"; |
| 100 | reg = <0x01c22800 0x100>; |
| 101 | interrupts = <31>; |
| 102 | vref-supply = <®_vcc3v0>; |
| 103 | |
| 104 | button-191 { |
| 105 | label = "Volume Up"; |
| 106 | linux,code = <115>; |
| 107 | channel = <0>; |
| 108 | voltage = <191274>; |
| 109 | }; |
| 110 | |
| 111 | button-392 { |
| 112 | label = "Volume Down"; |
| 113 | linux,code = <114>; |
| 114 | channel = <0>; |
| 115 | voltage = <392644>; |
| 116 | }; |
| 117 | }; |
| 118 | |
| 119 | ... |