// SPDX-License-Identifier: GPL-2.0
/*
* MediaTek MT8365 Sound Card driver
*
* Copyright (c) 2024 MediaTek Inc.
* Authors: Nicolas Belin <[email protected]>
*/
#include <linux/module.h>
#include <linux/of_gpio.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include "mt8365-afe-common.h"
#include <linux/pinctrl/consumer.h>
#include "../common/mtk-soc-card.h"
#include "../common/mtk-soundcard-driver.h"
enum pinctrl_pin_state {
PIN_STATE_DEFAULT,
PIN_STATE_DMIC,
PIN_STATE_MISO_OFF,
PIN_STATE_MISO_ON,
PIN_STATE_MOSI_OFF,
PIN_STATE_MOSI_ON,
PIN_STATE_MAX
};
static const char * const mt8365_mt6357_pin_str[PIN_STATE_MAX] = {
"default",
"dmic",
"miso_off",
"miso_on",
"mosi_off",
"mosi_on",
};
struct mt8365_mt6357_priv {
struct pinctrl *pinctrl;
struct pinctrl_state *pin_states[PIN_STATE_MAX];
};
enum {
/* FE */
DAI_LINK_DL1_PLAYBACK = 0,
DAI_LINK_DL2_PLAYBACK,
DAI_LINK_AWB_CAPTURE,
DAI_LINK_VUL_CAPTURE,
/* BE */
DAI_LINK_2ND_I2S_INTF,
DAI_LINK_DMIC,
DAI_LINK_INT_ADDA,
DAI_LINK_NUM
};
static const struct snd_soc_dapm_widget mt8365_mt6357_widgets[] = {
SND_SOC_DAPM_OUTPUT("HDMI Out"),
};
static const struct snd_soc_dapm_route mt8365_mt6357_routes[] = {
{"HDMI Out", NULL, "2ND I2S Playback"},
{"DMIC In", NULL, "MICBIAS0"},
};
static int mt8365_mt6357_int_adda_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct mt8365_mt6357_priv *priv = snd_soc_card_get_drvdata(rtd->card);
int ret = 0;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (IS_ERR(priv->pin_states[PIN_STATE_MOSI_ON]))
return ret;
ret = pinctrl_select_state(priv->pinctrl,
priv->pin_states[PIN_STATE_MOSI_ON]);
if (ret)
dev_err(rtd->card->dev, "%s failed to select state %d\n",
__func__, ret);
}
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (IS_ERR(priv->pin_states[PIN_STATE_MISO_ON]))
return ret;
ret = pinctrl_select_state(priv->pinctrl,
priv->pin_states[PIN_STATE_MISO_ON]);
if (ret)
dev_err(rtd->card->dev, "%s failed to select state %d\n",
__func__, ret);
}
return 0;
}
static void mt8365_mt6357_int_adda_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct mt8365_mt6357_priv *priv = snd_soc_card_get_drvdata(rtd->card);
int ret = 0;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (IS_ERR(priv->pin_states[PIN_STATE_MOSI_OFF]))
return;
ret = pinctrl_select_state(priv->pinctrl,
priv->pin_states[PIN_STATE_MOSI_OFF]);
if (ret)
dev_err(rtd->card->dev, "%s failed to select state %d\n",
__func__, ret);
}
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (IS_ERR(priv->pin_states[PIN_STATE_MISO_OFF]))
return;
ret = pinctrl_select_state(priv->pinctrl,
priv->pin_states[PIN_STATE_MISO_OFF]);
if (ret)
dev_err(rtd->card->dev, "%s failed to select state %d\n",
__func__, ret);
}
}
static const struct snd_soc_ops mt8365_mt6357_int_adda_ops = {
.startup = mt8365_mt6357_int_adda_startup,
.shutdown = mt8365_mt6357_int_adda_shutdown,
};
SND_SOC_DAILINK_DEFS(playback1,
DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(playback2,
DAILINK_COMP_ARRAY(COMP_CPU("DL2")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(awb_capture,
DAILINK_COMP_ARRAY(COMP_CPU("AWB")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(vul,
DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(i2s3,
DAILINK_COMP_ARRAY(COMP_CPU("2ND I2S")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(dmic,
DAILINK_COMP_ARRAY(COMP_CPU("DMIC")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(primary_codec,
DAILINK_COMP_ARRAY(COMP_CPU("INT ADDA")),
DAILINK_COMP_ARRAY(COMP_CODEC("mt6357-sound", "mt6357-snd-codec-aif1")),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
/* Digital audio interface glue - connects codec <---> CPU */
static struct snd_soc_dai_link mt8365_mt6357_dais[] = {
/* Front End DAI links */
[DAI_LINK_DL1_PLAYBACK] = {
.name = "DL1_FE",
.stream_name = "MultiMedia1_PLayback",
.id = DAI_LINK_DL1_PLAYBACK,
.trigger = {
SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST
},
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_merged_rate = 1,
SND_SOC_DAILINK_REG(playback1),
},
[DAI_LINK_DL2_PLAYBACK] = {
.name = "DL2_FE",
.stream_name = "MultiMedia2_PLayback",
.id = DAI_LINK_DL2_PLAYBACK,
.trigger = {
SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST
},
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_merged_rate = 1,
SND_SOC_DAILINK_REG(playback2),
},
[DAI_LINK_AWB_CAPTURE] = {
.name = "AWB_FE",
.stream_name = "DL1_AWB_Record",
.id = DAI_LINK_AWB_CAPTURE,
.trigger = {
SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST
},
.dynamic = 1,
.dpcm_capture = 1,
.dpcm_merged_rate = 1,
SND_SOC_DAILINK_REG(awb_capture),
},
[DAI_LINK_VUL_CAPTURE] = {
.name = "VUL_FE",
.stream_name = "MultiMedia1_Capture",
.id = DAI_LINK_VUL_CAPTURE,
.trigger = {
SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST
},
.dynamic = 1,
.dpcm_capture = 1,
.dpcm_merged_rate = 1,
SND_SOC_DAILINK_REG(vul),
},
/* Back End DAI links */
[DAI_LINK_2ND_I2S_INTF] = {
.name = "I2S_OUT_BE",
.no_pcm = 1,
.id = DAI_LINK_2ND_I2S_INTF,
.dai_fmt = SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.dpcm_playback = 1,
.dpcm_capture = 1,
SND_SOC_DAILINK_REG(i2s3),
},
[DAI_LINK_DMIC] = {
.name = "DMIC_BE",
.no_pcm = 1,
.id = DAI_LINK_DMIC,
.dpcm_capture = 1,
SND_SOC_DAILINK_REG(dmic),
},
[DAI_LINK_INT_ADDA] = {
.name = "MTK_Codec",
.no_pcm = 1,
.id = DAI_LINK_INT_ADDA,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &mt8365_mt6357_int_adda_ops,
SND_SOC_DAILINK_REG(primary_codec),
},
};
static int mt8365_mt6357_gpio_probe(struct snd_soc_card *card)
{
struct mt8365_mt6357_priv *priv = snd_soc_card_get_drvdata(card);
int ret, i;
priv->pinctrl = devm_pinctrl_get(card->dev);
if (IS_ERR(priv->pinctrl)) {
ret = PTR_ERR(priv->pinctrl);
return dev_err_probe(card->dev, ret,
"Failed to get pinctrl\n");
}
for (i = PIN_STATE_DEFAULT ; i < PIN_STATE_MAX ; i++) {
priv->pin_states[i] = pinctrl_lookup_state(priv->pinctrl,
mt8365_mt6357_pin_str[i]);
if (IS_ERR(priv->pin_states[i])) {
dev_info(card->dev, "No pin state for %s\n",
mt8365_mt6357_pin_str[i]);
} else {
ret = pinctrl_select_state(priv->pinctrl,
priv->pin_states[i]);
if (ret) {
dev_err_probe(card->dev, ret,
"Failed to select pin state %s\n",
mt8365_mt6357_pin_str[i]);
return ret;
}
}
}
return 0;
}
static struct snd_soc_card mt8365_mt6357_soc_card = {
.name = "mt8365-evk",
.owner = THIS_MODULE,
.dai_link = mt8365_mt6357_dais,
.num_links = ARRAY_SIZE(mt8365_mt6357_dais),
.dapm_widgets = mt8365_mt6357_widgets,
.num_dapm_widgets = ARRAY_SIZE(mt8365_mt6357_widgets),
.dapm_routes = mt8365_mt6357_routes,
.num_dapm_routes = ARRAY_SIZE(mt8365_mt6357_routes),
};
static int mt8365_mt6357_dev_probe(struct mtk_soc_card_data *soc_card_data, bool legacy)
{
struct mtk_platform_card_data *card_data = soc_card_data->card_data;
struct snd_soc_card *card = card_data->card;
struct device *dev = card->dev;
struct mt8365_mt6357_priv *mach_priv;
int ret;
card->dev = dev;
ret = parse_dai_link_info(card);
if (ret)
goto err;
mach_priv = devm_kzalloc(dev, sizeof(*mach_priv),
GFP_KERNEL);
if (!mach_priv)
return -ENOMEM;
soc_card_data->mach_priv = mach_priv;
snd_soc_card_set_drvdata(card, soc_card_data);
mt8365_mt6357_gpio_probe(card);
return 0;
err:
clean_card_reference(card);
return ret;
}
static const struct mtk_soundcard_pdata mt8365_mt6357_card = {
.card_name = "mt8365-mt6357",
.card_data = &(struct mtk_platform_card_data) {
.card = &mt8365_mt6357_soc_card,
},
.soc_probe = mt8365_mt6357_dev_probe
};
static const struct of_device_id mt8365_mt6357_dt_match[] = {
{ .compatible = "mediatek,mt8365-mt6357", .data = &mt8365_mt6357_card },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mt8365_mt6357_dt_match);
static struct platform_driver mt8365_mt6357_driver = {
.driver = {
.name = "mt8365_mt6357",
.of_match_table = mt8365_mt6357_dt_match,
.pm = &snd_soc_pm_ops,
},
.probe = mtk_soundcard_common_probe,
};
module_platform_driver(mt8365_mt6357_driver);
/* Module information */
MODULE_DESCRIPTION("MT8365 EVK SoC machine driver");
MODULE_AUTHOR("Nicolas Belin <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform: mt8365_mt6357");
Codebase Browser
linux