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// SPDX-License-Identifier: GPL-2.0
/*
* mt7986-wm8960.c -- MT7986-WM8960 ALSA SoC machine driver
*
* Copyright (c) 2023 MediaTek Inc.
* Authors: Vic Wu <vic.wu@mediatek.com>
* Maso Huang <maso.huang@mediatek.com>
*/
#include <linux/module.h>
#include <sound/soc.h>
#include "mt7986-afe-common.h"
struct mt7986_wm8960_priv {
struct device_node *platform_node;
struct device_node *codec_node;
};
static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("AMIC", NULL),
};
static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("AMIC"),
};
SND_SOC_DAILINK_DEFS(playback,
DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(capture,
DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(codec,
DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {
/* FE */
{
.name = "wm8960-playback",
.stream_name = "wm8960-playback",
.trigger = {SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_playback = 1,
SND_SOC_DAILINK_REG(playback),
},
{
.name = "wm8960-capture",
.stream_name = "wm8960-capture",
.trigger = {SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_capture = 1,
SND_SOC_DAILINK_REG(capture),
},
/* BE */
{
.name = "wm8960-codec",
.no_pcm = 1,
.dai_fmt = SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS |
SND_SOC_DAIFMT_GATED,
.dpcm_playback = 1,
.dpcm_capture = 1,
SND_SOC_DAILINK_REG(codec),
},
};
static struct snd_soc_card mt7986_wm8960_card = {
.name = "mt7986-wm8960",
.owner = THIS_MODULE,
.dai_link = mt7986_wm8960_dai_links,
.num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),
.controls = mt7986_wm8960_controls,
.num_controls = ARRAY_SIZE(mt7986_wm8960_controls),
.dapm_widgets = mt7986_wm8960_widgets,
.num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),
};
static int mt7986_wm8960_machine_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mt7986_wm8960_card;
struct snd_soc_dai_link *dai_link;
struct device_node *platform, *codec;
struct mt7986_wm8960_priv *priv;
int ret, i;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
platform = of_get_child_by_name(pdev->dev.of_node, "platform");
if (platform) {
priv->platform_node = of_parse_phandle(platform, "sound-dai", 0);
of_node_put(platform);
if (!priv->platform_node) {
dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");
return -EINVAL;
}
} else {
dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
return -EINVAL;
}
for_each_card_prelinks(card, i, dai_link) {
if (dai_link->platforms->name)
continue;
dai_link->platforms->of_node = priv->platform_node;
}
card->dev = &pdev->dev;
codec = of_get_child_by_name(pdev->dev.of_node, "codec");
if (codec) {
priv->codec_node = of_parse_phandle(codec, "sound-dai", 0);
of_node_put(codec);
if (!priv->codec_node) {
of_node_put(priv->platform_node);
dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
return -EINVAL;
}
} else {
of_node_put(priv->platform_node);
dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");
return -EINVAL;
}
for_each_card_prelinks(card, i, dai_link) {
if (dai_link->codecs->name)
continue;
dai_link->codecs->of_node = priv->codec_node;
}
ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
if (ret) {
dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);
goto err_of_node_put;
}
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret) {
dev_err(&pdev->dev, "%s snd_soc_register_card fail: %d\n", __func__, ret);
goto err_of_node_put;
}
err_of_node_put:
of_node_put(priv->codec_node);
of_node_put(priv->platform_node);
return ret;
}
static void mt7986_wm8960_machine_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct mt7986_wm8960_priv *priv = snd_soc_card_get_drvdata(card);
of_node_put(priv->codec_node);
of_node_put(priv->platform_node);
}
static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {
{.compatible = "mediatek,mt7986-wm8960-sound"},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);
static struct platform_driver mt7986_wm8960_machine = {
.driver = {
.name = "mt7986-wm8960",
.of_match_table = mt7986_wm8960_machine_dt_match,
},
.probe = mt7986_wm8960_machine_probe,
.remove_new = mt7986_wm8960_machine_remove,
};
module_platform_driver(mt7986_wm8960_machine);
/* Module information */
MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");
MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("mt7986 wm8960 soc card");
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