ASoc: mediatek: mt8365: Add a specific soundcard for EVK

Add a specific soundcard for mt8365-evk. It supports audio jack
in/out, dmics, the amic and lineout.

Signed-off-by: Nicolas Belin <nbelin@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://patch.msgid.link/20240226-audio-i350-v7-10-6518d953a141@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: nkbelin

sound/soc/mediatek/mt8365/mt8365-mt6357.c

@@ -0,0 +1,345 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek MT8365 Sound Card driver
+ *
+ * Copyright (c) 2024 MediaTek Inc.
+ * Authors: Nicolas Belin <nbelin@baylibre.com>
+ */
+
+#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])) {
+			ret = PTR_ERR(priv->pin_states[i]);
+			dev_warn(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 device_node *platform_node;
+	struct mt8365_mt6357_priv *mach_priv;
+	int i, 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 <nbelin@baylibre.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform: mt8365_mt6357");