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117 lines
2.3 KiB
117 lines
2.3 KiB
# SPDX-License-Identifier: GPL-2.0 |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/input/allwinner,sun4i-a10-lradc-keys.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Allwinner A10 LRADC Device Tree Bindings |
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maintainers: |
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- Chen-Yu Tsai <[email protected]> |
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- Maxime Ripard <[email protected]> |
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properties: |
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compatible: |
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oneOf: |
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- const: allwinner,sun4i-a10-lradc-keys |
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- const: allwinner,sun8i-a83t-r-lradc |
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- items: |
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- const: allwinner,sun50i-a64-lradc |
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- const: allwinner,sun8i-a83t-r-lradc |
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- const: allwinner,sun50i-r329-lradc |
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- items: |
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- const: allwinner,sun20i-d1-lradc |
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- const: allwinner,sun50i-r329-lradc |
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reg: |
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maxItems: 1 |
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clocks: |
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maxItems: 1 |
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resets: |
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maxItems: 1 |
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interrupts: |
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maxItems: 1 |
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vref-supply: |
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description: |
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Regulator for the LRADC reference voltage |
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wakeup-source: true |
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patternProperties: |
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"^button-[0-9]+$": |
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type: object |
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$ref: input.yaml# |
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properties: |
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label: |
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$ref: /schemas/types.yaml#/definitions/string |
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description: Descriptive name of the key |
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linux,code: true |
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channel: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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enum: [0, 1] |
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description: ADC Channel this key is attached to |
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voltage: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: |
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Voltage in microvolts at LRADC input when this key is |
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pressed |
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required: |
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- label |
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- linux,code |
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- channel |
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- voltage |
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additionalProperties: false |
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required: |
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- compatible |
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- reg |
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- interrupts |
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- vref-supply |
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if: |
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properties: |
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compatible: |
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contains: |
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enum: |
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- allwinner,sun50i-r329-lradc |
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then: |
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required: |
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- clocks |
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- resets |
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additionalProperties: false |
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examples: |
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- | |
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lradc: lradc@1c22800 { |
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compatible = "allwinner,sun4i-a10-lradc-keys"; |
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reg = <0x01c22800 0x100>; |
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interrupts = <31>; |
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vref-supply = <®_vcc3v0>; |
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button-191 { |
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label = "Volume Up"; |
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linux,code = <115>; |
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channel = <0>; |
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voltage = <191274>; |
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}; |
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button-392 { |
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label = "Volume Down"; |
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linux,code = <114>; |
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channel = <0>; |
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voltage = <392644>; |
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}; |
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}; |
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...
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