Mailing List Archive

From: Nicolas Belin <nbelin@baylibre.com>

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>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
---
sound/soc/mediatek/mt8365/mt8365-mt6357.c | 348 ++++++++++++++++++++++++++++++
1 file changed, 348 insertions(+)

diff --git a/sound/soc/mediatek/mt8365/mt8365-mt6357.c b/sound/soc/mediatek/mt8365/mt8365-mt6357.c
new file mode 100644
index 000000000000..a65f668103da
--- /dev/null
+++ b/sound/soc/mediatek/mt8365/mt8365-mt6357.c
@@ -0,0 +1,348 @@
+// 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,
+ },
+ { }
+};
+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");

--
2.25.1