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cubelinux-kernel/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/samsung,midas-audio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Samsung Midas audio complex with WM1811 codec
maintainers:
- Sylwester Nawrocki <s.nawrocki@samsung.com>
allOf:
- $ref: sound-card-common.yaml#
properties:
compatible:
const: samsung,midas-audio
cpu:
type: object
additionalProperties: false
properties:
sound-dai:
maxItems: 1
description: phandle to the I2S controller
required:
- sound-dai
codec:
type: object
additionalProperties: false
properties:
sound-dai:
maxItems: 1
description: phandle to the WM1811 CODEC
required:
- sound-dai
samsung,audio-routing:
deprecated: true
$ref: /schemas/types.yaml#/definitions/non-unique-string-array
description: |
List of the connections between audio components; each entry is
a pair of strings, the first being the connection's sink, the second
being the connection's source; valid names for sources and sinks are
the WM1811's pins (as documented in its binding), and the jacks
on the board: HP, SPK, Main Mic, Sub Mic, Headset Mic.
Deprecated, use audio-routing.
mic-bias-supply:
description: Supply for the micbias on the Main microphone
submic-bias-supply:
description: Supply for the micbias on the Sub microphone
headset-mic-bias-supply:
description: Supply for the micbias on the Headset microphone
fm-sel-gpios:
maxItems: 1
description: GPIO pin for FM selection
lineout-sel-gpios:
maxItems: 1
description: GPIO pin for line out selection
headset-detect-gpios:
maxItems: 1
description: GPIO for detection of headset insertion
headset-key-gpios:
maxItems: 1
description: GPIO for detection of headset key press
io-channels:
maxItems: 1
description: IO channel to read micbias voltage for headset detection
io-channel-names:
const: headset-detect
samsung,headset-4pole-threshold-microvolt:
minItems: 2
maxItems: 2
description:
Array containing minimum and maximum IO channel value for 4-pole
(with microphone/button) headsets. If the IO channel value is
outside of this range, a 3-pole headset is assumed.
samsung,headset-button-threshold-microvolt:
minItems: 3
maxItems: 3
description: |
Array of minimum (inclusive) IO channel values for headset button
detection, in order: "Media", "Volume Up" and "Volume Down".
required:
- compatible
- cpu
- codec
- audio-routing
- mic-bias-supply
- submic-bias-supply
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
sound {
compatible = "samsung,midas-audio";
model = "Midas";
fm-sel-gpios = <&gpaa0 3 GPIO_ACTIVE_HIGH>;
mic-bias-supply = <&mic_bias_reg>;
submic-bias-supply = <&submic_bias_reg>;
audio-routing =
"HP", "HPOUT1L",
"HP", "HPOUT1R",
"SPK", "SPKOUTLN",
"SPK", "SPKOUTLP",
"SPK", "SPKOUTRN",
"SPK", "SPKOUTRP",
"RCV", "HPOUT2N",
"RCV", "HPOUT2P",
"IN1LP", "Main Mic",
"IN1LN", "Main Mic",
"IN1RP", "Sub Mic",
"IN1LP", "Sub Mic";
cpu {
sound-dai = <&i2s0>;
};
codec {
sound-dai = <&wm1811>;
};
};