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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/loongson,ls-audio-card.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Loongson 7axxx/2kxxx ASoC audio sound card driver
maintainers:
- Yingkun Meng <mengyingkun@loongson.cn>
- Binbin Zhou <zhoubinbin@loongson.cn>
description:
The binding describes the sound card present in loongson
7axxx/2kxxx platform. The sound card is an ASoC component
which uses Loongson I2S controller to transfer the audio data.
allOf:
- $ref: sound-card-common.yaml#
properties:
compatible:
enum:
- loongson,ls-audio-card # Loongson-2K1000/Loongson-2K2000/LS7A
- loongson,ls2k0300-forever-pi-audio-card # CTCISZ Forever Pi
- loongson,ls2k0300-dl2k0300b-audio-card # ATK-DL2K0300B
mclk-fs:
$ref: simple-card.yaml#/definitions/mclk-fs
cpu:
description: Holds subnode which indicates cpu dai.
type: object
additionalProperties: false
properties:
sound-dai:
maxItems: 1
required:
- sound-dai
codec:
description: Holds subnode which indicates codec dai.
type: object
additionalProperties: false
properties:
sound-dai:
maxItems: 1
required:
- sound-dai
spkr-en-gpios:
maxItems: 1
description: The GPIO that enables the speakers
hp-ctl-gpios:
maxItems: 1
description: The GPIO that control the headphones
hp-det-gpios:
maxItems: 1
description: The GPIO that detect headphones are plugged in
required:
- compatible
- mclk-fs
- cpu
- codec
unevaluatedProperties: false
examples:
- |
sound {
compatible = "loongson,ls-audio-card";
model = "loongson-audio";
mclk-fs = <512>;
cpu {
sound-dai = <&i2s>;
};
codec {
sound-dai = <&es8323>;
};
};
- |
#include <dt-bindings/gpio/gpio.h>
sound {
compatible = "loongson,ls2k0300-dl2k0300b-audio-card";
model = "loongson-audio";
mclk-fs = <512>;
hp-det-gpios = <&gpio 81 GPIO_ACTIVE_HIGH>;
spkr-en-gpios = <&gpio 86 GPIO_ACTIVE_HIGH>;
hp-ctl-gpios = <&gpio 87 GPIO_ACTIVE_HIGH>;
audio-routing =
"Headphone", "LOUT1",
"Headphone", "ROUT1",
"Speaker", "LOUT2",
"Speaker", "ROUT2";
cpu {
sound-dai = <&i2s>;
};
codec {
sound-dai = <&es8388>;
};
};
|
