allwinner,sun4i-a10-lradc-keys.yaml (2420B)
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 7title: Allwinner A10 LRADC Device Tree Bindings 8 9maintainers: 10 - Chen-Yu Tsai <wens@csie.org> 11 - Maxime Ripard <mripard@kernel.org> 12 13properties: 14 compatible: 15 oneOf: 16 - const: allwinner,sun4i-a10-lradc-keys 17 - const: allwinner,sun8i-a83t-r-lradc 18 - items: 19 - const: allwinner,sun50i-a64-lradc 20 - const: allwinner,sun8i-a83t-r-lradc 21 - const: allwinner,sun50i-r329-lradc 22 - items: 23 - const: allwinner,sun20i-d1-lradc 24 - const: allwinner,sun50i-r329-lradc 25 26 reg: 27 maxItems: 1 28 29 clocks: 30 maxItems: 1 31 32 resets: 33 maxItems: 1 34 35 interrupts: 36 maxItems: 1 37 38 vref-supply: 39 description: 40 Regulator for the LRADC reference voltage 41 42 wakeup-source: true 43 44patternProperties: 45 "^button-[0-9]+$": 46 type: object 47 properties: 48 label: 49 $ref: /schemas/types.yaml#/definitions/string 50 description: Descriptive name of the key 51 52 linux,code: 53 $ref: /schemas/types.yaml#/definitions/uint32 54 description: Keycode to emit 55 56 channel: 57 $ref: /schemas/types.yaml#/definitions/uint32 58 enum: [0, 1] 59 description: ADC Channel this key is attached to 60 61 voltage: 62 $ref: /schemas/types.yaml#/definitions/uint32 63 description: 64 Voltage in microvolts at LRADC input when this key is 65 pressed 66 67 required: 68 - label 69 - linux,code 70 - channel 71 - voltage 72 73 additionalProperties: false 74 75required: 76 - compatible 77 - reg 78 - interrupts 79 - vref-supply 80 81if: 82 properties: 83 compatible: 84 contains: 85 enum: 86 - allwinner,sun50i-r329-lradc 87 88then: 89 required: 90 - clocks 91 - resets 92 93additionalProperties: false 94 95examples: 96 - | 97 lradc: lradc@1c22800 { 98 compatible = "allwinner,sun4i-a10-lradc-keys"; 99 reg = <0x01c22800 0x100>; 100 interrupts = <31>; 101 vref-supply = <®_vcc3v0>; 102 103 button-191 { 104 label = "Volume Up"; 105 linux,code = <115>; 106 channel = <0>; 107 voltage = <191274>; 108 }; 109 110 button-392 { 111 label = "Volume Down"; 112 linux,code = <114>; 113 channel = <0>; 114 voltage = <392644>; 115 }; 116 }; 117 118...