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