91 lines
2.3 KiB
YAML
91 lines
2.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/ti,twl4030-audio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments TWL4030-family Audio Module
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maintainers:
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- Peter Ujfalusi <peter.ujfalusi@gmail.com>
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description:
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The audio module within the TWL4030-family of companion chips consists
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of an audio codec and a vibra driver. This binding describes the parent
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node for these functions.
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properties:
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compatible:
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const: ti,twl4030-audio
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codec:
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type: object
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description: Node containing properties for the audio codec functionality.
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properties:
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ti,digimic_delay:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Delay in milliseconds after enabling digital microphones to reduce
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artifacts.
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ti,ramp_delay_value:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Headset ramp delay configuration to reduce pop noise.
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ti,hs_extmute:
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type: boolean
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description:
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Enable the use of an external mute for headset pop reduction.
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ti,hs_extmute_gpio:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description:
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The GPIO specifier for the external mute control.
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maxItems: 1
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ti,offset_cncl_path:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Offset cancellation path selection. Refer to the Technical
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Reference Manual for valid values.
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# The 'codec' node itself is optional, but if it exists, it can be empty.
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# We don't require any of its sub-properties.
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ti,enable-vibra:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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description:
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Enable or disable the vibra functionality.
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additionalProperties: false
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required:
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- compatible
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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twl: twl@48 {
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reg = <0x48>;
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interrupts = <7>; /* SYS_NIRQ cascaded to intc */
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interrupt-parent = <&intc>;
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twl_audio: audio {
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compatible = "ti,twl4030-audio";
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ti,enable-vibra = <1>;
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codec {
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ti,ramp_delay_value = <3>;
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};
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};
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};
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};
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