Resguardo inicial

linux-7.2.3/sound/soc/mediatek/mt7986/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# platform driver
+snd-soc-mt7986-afe-y := \
+	mt7986-afe-pcm.o \
+	mt7986-dai-etdm.o
+
+obj-$(CONFIG_SND_SOC_MT7986) += snd-soc-mt7986-afe.o
+obj-$(CONFIG_SND_SOC_MT7986_WM8960) += mt7986-wm8960.o

linux-7.2.3/sound/soc/mediatek/mt7986/mt7986-afe-common.h

@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mt7986-afe-common.h  --  MediaTek 7986 audio driver definitions
+ *
+ * Copyright (c) 2023 MediaTek Inc.
+ * Authors: Vic Wu <vic.wu@mediatek.com>
+ *          Maso Huang <maso.huang@mediatek.com>
+ */
+
+#ifndef _MT_7986_AFE_COMMON_H_
+#define _MT_7986_AFE_COMMON_H_
+
+#include <sound/soc.h>
+#include <linux/clk.h>
+#include <linux/list.h>
+#include <linux/regmap.h>
+#include "../common/mtk-base-afe.h"
+
+enum {
+	MT7986_MEMIF_DL1,
+	MT7986_MEMIF_VUL12,
+	MT7986_MEMIF_NUM,
+	MT7986_DAI_ETDM = MT7986_MEMIF_NUM,
+	MT7986_DAI_NUM,
+};
+
+enum {
+	MT7986_IRQ_0,
+	MT7986_IRQ_1,
+	MT7986_IRQ_2,
+	MT7986_IRQ_NUM,
+};
+
+struct mt7986_afe_private {
+	struct clk_bulk_data *clks;
+	int num_clks;
+
+	int pm_runtime_bypass_reg_ctl;
+
+	/* dai */
+	void *dai_priv[MT7986_DAI_NUM];
+};
+
+unsigned int mt7986_afe_rate_transform(struct device *dev,
+				       unsigned int rate);
+
+/* dai register */
+int mt7986_dai_etdm_register(struct mtk_base_afe *afe);
+#endif

linux-7.2.3/sound/soc/mediatek/mt7986/mt7986-afe-pcm.c

@@ -0,0 +1,609 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek ALSA SoC AFE platform driver for MT7986
+ *
+ * Copyright (c) 2023 MediaTek Inc.
+ * Authors: Vic Wu <vic.wu@mediatek.com>
+ *          Maso Huang <maso.huang@mediatek.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/pm_runtime.h>
+
+#include "mt7986-afe-common.h"
+#include "mt7986-reg.h"
+#include "../common/mtk-afe-platform-driver.h"
+#include "../common/mtk-afe-fe-dai.h"
+
+enum {
+	MTK_AFE_RATE_8K = 0,
+	MTK_AFE_RATE_11K = 1,
+	MTK_AFE_RATE_12K = 2,
+	MTK_AFE_RATE_16K = 4,
+	MTK_AFE_RATE_22K = 5,
+	MTK_AFE_RATE_24K = 6,
+	MTK_AFE_RATE_32K = 8,
+	MTK_AFE_RATE_44K = 9,
+	MTK_AFE_RATE_48K = 10,
+	MTK_AFE_RATE_88K = 13,
+	MTK_AFE_RATE_96K = 14,
+	MTK_AFE_RATE_176K = 17,
+	MTK_AFE_RATE_192K = 18,
+};
+
+enum {
+	CLK_INFRA_AUD_BUS_CK = 0,
+	CLK_INFRA_AUD_26M_CK,
+	CLK_INFRA_AUD_L_CK,
+	CLK_INFRA_AUD_AUD_CK,
+	CLK_INFRA_AUD_EG2_CK,
+	CLK_NUM
+};
+
+static const char *aud_clks[CLK_NUM] = {
+	[CLK_INFRA_AUD_BUS_CK] = "aud_bus_ck",
+	[CLK_INFRA_AUD_26M_CK] = "aud_26m_ck",
+	[CLK_INFRA_AUD_L_CK] = "aud_l_ck",
+	[CLK_INFRA_AUD_AUD_CK] = "aud_aud_ck",
+	[CLK_INFRA_AUD_EG2_CK] = "aud_eg2_ck",
+};
+
+unsigned int mt7986_afe_rate_transform(struct device *dev, unsigned int rate)
+{
+	switch (rate) {
+	case 8000:
+		return MTK_AFE_RATE_8K;
+	case 11025:
+		return MTK_AFE_RATE_11K;
+	case 12000:
+		return MTK_AFE_RATE_12K;
+	case 16000:
+		return MTK_AFE_RATE_16K;
+	case 22050:
+		return MTK_AFE_RATE_22K;
+	case 24000:
+		return MTK_AFE_RATE_24K;
+	case 32000:
+		return MTK_AFE_RATE_32K;
+	case 44100:
+		return MTK_AFE_RATE_44K;
+	case 48000:
+		return MTK_AFE_RATE_48K;
+	case 88200:
+		return MTK_AFE_RATE_88K;
+	case 96000:
+		return MTK_AFE_RATE_96K;
+	case 176400:
+		return MTK_AFE_RATE_176K;
+	case 192000:
+		return MTK_AFE_RATE_192K;
+	default:
+		dev_warn(dev, "%s(), rate %u invalid, using %d!!!\n",
+			 __func__, rate, MTK_AFE_RATE_48K);
+		return MTK_AFE_RATE_48K;
+	}
+}
+
+static const struct snd_pcm_hardware mt7986_afe_hardware = {
+	.info = SNDRV_PCM_INFO_MMAP |
+		SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_MMAP_VALID,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE |
+		   SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+	.period_bytes_min = 256,
+	.period_bytes_max = 4 * 48 * 1024,
+	.periods_min = 2,
+	.periods_max = 256,
+	.buffer_bytes_max = 8 * 48 * 1024,
+	.fifo_size = 0,
+};
+
+static int mt7986_memif_fs(struct snd_pcm_substream *substream,
+			   unsigned int rate)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+
+	return mt7986_afe_rate_transform(afe->dev, rate);
+}
+
+static int mt7986_irq_fs(struct snd_pcm_substream *substream,
+			 unsigned int rate)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+
+	return mt7986_afe_rate_transform(afe->dev, rate);
+}
+
+#define MTK_PCM_RATES (SNDRV_PCM_RATE_8000_48000 |\
+		       SNDRV_PCM_RATE_88200 |\
+		       SNDRV_PCM_RATE_96000 |\
+		       SNDRV_PCM_RATE_176400 |\
+		       SNDRV_PCM_RATE_192000)
+
+#define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+			 SNDRV_PCM_FMTBIT_S24_LE |\
+			 SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver mt7986_memif_dai_driver[] = {
+	/* FE DAIs: memory intefaces to CPU */
+	{
+		.name = "DL1",
+		.id = MT7986_MEMIF_DL1,
+		.playback = {
+			.stream_name = "DL1",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = MTK_PCM_RATES,
+			.formats = MTK_PCM_FORMATS,
+		},
+		.ops = &mtk_afe_fe_ops,
+	},
+	{
+		.name = "UL1",
+		.id = MT7986_MEMIF_VUL12,
+		.capture = {
+			.stream_name = "UL1",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = MTK_PCM_RATES,
+			.formats = MTK_PCM_FORMATS,
+		},
+		.ops = &mtk_afe_fe_ops,
+	},
+};
+
+static const struct snd_kcontrol_new o018_mix[] = {
+	SOC_DAPM_SINGLE_AUTODISABLE("I150_Switch", AFE_CONN018_4, 22, 1, 0),
+};
+
+static const struct snd_kcontrol_new o019_mix[] = {
+	SOC_DAPM_SINGLE_AUTODISABLE("I151_Switch", AFE_CONN019_4, 23, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget mt7986_memif_widgets[] = {
+	/* DL */
+	SND_SOC_DAPM_MIXER("I032", SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_MIXER("I033", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+	/* UL */
+	SND_SOC_DAPM_MIXER("O018", SND_SOC_NOPM, 0, 0,
+			   o018_mix, ARRAY_SIZE(o018_mix)),
+	SND_SOC_DAPM_MIXER("O019", SND_SOC_NOPM, 0, 0,
+			   o019_mix, ARRAY_SIZE(o019_mix)),
+};
+
+static const struct snd_soc_dapm_route mt7986_memif_routes[] = {
+	{"I032", NULL, "DL1"},
+	{"I033", NULL, "DL1"},
+	{"UL1", NULL, "O018"},
+	{"UL1", NULL, "O019"},
+	{"O018", "I150_Switch", "I150"},
+	{"O019", "I151_Switch", "I151"},
+};
+
+static const struct snd_soc_component_driver mt7986_afe_pcm_dai_component = {
+	.name = "mt7986-afe-pcm-dai",
+};
+
+static const struct mtk_base_memif_data memif_data[MT7986_MEMIF_NUM] = {
+	[MT7986_MEMIF_DL1] = {
+		.name = "DL1",
+		.id = MT7986_MEMIF_DL1,
+		.reg_ofs_base = AFE_DL0_BASE,
+		.reg_ofs_cur = AFE_DL0_CUR,
+		.reg_ofs_end = AFE_DL0_END,
+		.reg_ofs_base_msb = AFE_DL0_BASE_MSB,
+		.reg_ofs_cur_msb = AFE_DL0_CUR_MSB,
+		.reg_ofs_end_msb = AFE_DL0_END_MSB,
+		.fs_reg = AFE_DL0_CON0,
+		.fs_shift =  DL0_MODE_SFT,
+		.fs_maskbit =  DL0_MODE_MASK,
+		.mono_reg = AFE_DL0_CON0,
+		.mono_shift = DL0_MONO_SFT,
+		.enable_reg = AFE_DL0_CON0,
+		.enable_shift = DL0_ON_SFT,
+		.hd_reg = AFE_DL0_CON0,
+		.hd_shift = DL0_HD_MODE_SFT,
+		.hd_align_reg = AFE_DL0_CON0,
+		.hd_align_mshift = DL0_HALIGN_SFT,
+		.pbuf_reg = AFE_DL0_CON0,
+		.pbuf_shift = DL0_PBUF_SIZE_SFT,
+		.minlen_reg = AFE_DL0_CON0,
+		.minlen_shift = DL0_MINLEN_SFT,
+	},
+	[MT7986_MEMIF_VUL12] = {
+		.name = "VUL12",
+		.id = MT7986_MEMIF_VUL12,
+		.reg_ofs_base = AFE_VUL0_BASE,
+		.reg_ofs_cur = AFE_VUL0_CUR,
+		.reg_ofs_end = AFE_VUL0_END,
+		.reg_ofs_base_msb = AFE_VUL0_BASE_MSB,
+		.reg_ofs_cur_msb = AFE_VUL0_CUR_MSB,
+		.reg_ofs_end_msb = AFE_VUL0_END_MSB,
+		.fs_reg = AFE_VUL0_CON0,
+		.fs_shift = VUL0_MODE_SFT,
+		.fs_maskbit = VUL0_MODE_MASK,
+		.mono_reg = AFE_VUL0_CON0,
+		.mono_shift = VUL0_MONO_SFT,
+		.enable_reg = AFE_VUL0_CON0,
+		.enable_shift = VUL0_ON_SFT,
+		.hd_reg = AFE_VUL0_CON0,
+		.hd_shift = VUL0_HD_MODE_SFT,
+		.hd_align_reg = AFE_VUL0_CON0,
+		.hd_align_mshift = VUL0_HALIGN_SFT,
+	},
+};
+
+static const struct mtk_base_irq_data irq_data[MT7986_IRQ_NUM] = {
+	[MT7986_IRQ_0] = {
+		.id = MT7986_IRQ_0,
+		.irq_cnt_reg = AFE_IRQ0_MCU_CFG1,
+		.irq_cnt_shift = AFE_IRQ_CNT_SHIFT,
+		.irq_cnt_maskbit = AFE_IRQ_CNT_MASK,
+		.irq_fs_reg = AFE_IRQ0_MCU_CFG0,
+		.irq_fs_shift = IRQ_MCU_MODE_SFT,
+		.irq_fs_maskbit = IRQ_MCU_MODE_MASK,
+		.irq_en_reg = AFE_IRQ0_MCU_CFG0,
+		.irq_en_shift = IRQ_MCU_ON_SFT,
+		.irq_clr_reg = AFE_IRQ_MCU_CLR,
+		.irq_clr_shift = IRQ0_MCU_CLR_SFT,
+	},
+	[MT7986_IRQ_1] = {
+		.id = MT7986_IRQ_1,
+		.irq_cnt_reg = AFE_IRQ1_MCU_CFG1,
+		.irq_cnt_shift = AFE_IRQ_CNT_SHIFT,
+		.irq_cnt_maskbit = AFE_IRQ_CNT_MASK,
+		.irq_fs_reg = AFE_IRQ1_MCU_CFG0,
+		.irq_fs_shift = IRQ_MCU_MODE_SFT,
+		.irq_fs_maskbit = IRQ_MCU_MODE_MASK,
+		.irq_en_reg = AFE_IRQ1_MCU_CFG0,
+		.irq_en_shift = IRQ_MCU_ON_SFT,
+		.irq_clr_reg = AFE_IRQ_MCU_CLR,
+		.irq_clr_shift = IRQ1_MCU_CLR_SFT,
+	},
+	[MT7986_IRQ_2] = {
+		.id = MT7986_IRQ_2,
+		.irq_cnt_reg = AFE_IRQ2_MCU_CFG1,
+		.irq_cnt_shift = AFE_IRQ_CNT_SHIFT,
+		.irq_cnt_maskbit = AFE_IRQ_CNT_MASK,
+		.irq_fs_reg = AFE_IRQ2_MCU_CFG0,
+		.irq_fs_shift = IRQ_MCU_MODE_SFT,
+		.irq_fs_maskbit = IRQ_MCU_MODE_MASK,
+		.irq_en_reg = AFE_IRQ2_MCU_CFG0,
+		.irq_en_shift = IRQ_MCU_ON_SFT,
+		.irq_clr_reg = AFE_IRQ_MCU_CLR,
+		.irq_clr_shift = IRQ2_MCU_CLR_SFT,
+	},
+};
+
+static bool mt7986_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	/*
+	 * Those auto-gen regs are read-only, so put it as volatile because
+	 * volatile registers cannot be cached, which means that they cannot
+	 * be set when power is off
+	 */
+
+	switch (reg) {
+	case AFE_DL0_CUR_MSB:
+	case AFE_DL0_CUR:
+	case AFE_DL0_RCH_MON:
+	case AFE_DL0_LCH_MON:
+	case AFE_VUL0_CUR_MSB:
+	case AFE_VUL0_CUR:
+	case AFE_IRQ_MCU_STATUS:
+	case AFE_MEMIF_RD_MON:
+	case AFE_MEMIF_WR_MON:
+		return true;
+	default:
+		return false;
+	};
+}
+
+static const struct regmap_config mt7986_afe_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.volatile_reg = mt7986_is_volatile_reg,
+	.max_register = AFE_MAX_REGISTER,
+	.num_reg_defaults_raw = ((AFE_MAX_REGISTER / 4) + 1),
+};
+
+static int mt7986_init_clock(struct mtk_base_afe *afe)
+{
+	struct mt7986_afe_private *afe_priv = afe->platform_priv;
+	int ret, i;
+
+	afe_priv->clks = devm_kcalloc(afe->dev, CLK_NUM,
+				sizeof(*afe_priv->clks), GFP_KERNEL);
+	if (!afe_priv->clks)
+		return -ENOMEM;
+	afe_priv->num_clks = CLK_NUM;
+
+	for (i = 0; i < afe_priv->num_clks; i++)
+		afe_priv->clks[i].id = aud_clks[i];
+
+	ret = devm_clk_bulk_get(afe->dev, afe_priv->num_clks, afe_priv->clks);
+	if (ret)
+		return dev_err_probe(afe->dev, ret, "Failed to get clocks\n");
+
+	return 0;
+}
+
+static irqreturn_t mt7986_afe_irq_handler(int irq_id, void *dev)
+{
+	struct mtk_base_afe *afe = dev;
+	struct mtk_base_afe_irq *irq;
+	u32 mcu_en, status, status_mcu;
+	int i, ret;
+	irqreturn_t irq_ret = IRQ_HANDLED;
+
+	/* get irq that is sent to MCU */
+	regmap_read(afe->regmap, AFE_IRQ_MCU_EN, &mcu_en);
+
+	ret = regmap_read(afe->regmap, AFE_IRQ_MCU_STATUS, &status);
+	/* only care IRQ which is sent to MCU */
+	status_mcu = status & mcu_en & AFE_IRQ_STATUS_BITS;
+
+	if (ret || status_mcu == 0) {
+		dev_err(afe->dev, "%s(), irq status err, ret %d, status 0x%x, mcu_en 0x%x\n",
+			__func__, ret, status, mcu_en);
+
+		irq_ret = IRQ_NONE;
+		goto err_irq;
+	}
+
+	for (i = 0; i < MT7986_MEMIF_NUM; i++) {
+		struct mtk_base_afe_memif *memif = &afe->memif[i];
+
+		if (!memif->substream)
+			continue;
+
+		if (memif->irq_usage < 0)
+			continue;
+
+		irq = &afe->irqs[memif->irq_usage];
+
+		if (status_mcu & (1 << irq->irq_data->irq_en_shift))
+			snd_pcm_period_elapsed(memif->substream);
+	}
+
+err_irq:
+	/* clear irq */
+	regmap_write(afe->regmap, AFE_IRQ_MCU_CLR, status_mcu);
+
+	return irq_ret;
+}
+
+static int mt7986_afe_runtime_suspend(struct device *dev)
+{
+	struct mtk_base_afe *afe = dev_get_drvdata(dev);
+	struct mt7986_afe_private *afe_priv = afe->platform_priv;
+
+	if (!afe->regmap || afe_priv->pm_runtime_bypass_reg_ctl)
+		goto skip_regmap;
+
+	/* disable clk*/
+	regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, 0x3fff, 0x3fff);
+	regmap_update_bits(afe->regmap, AUDIO_ENGEN_CON0, AUD_APLL2_EN_MASK, 0);
+	regmap_update_bits(afe->regmap, AUDIO_ENGEN_CON0, AUD_26M_EN_MASK, 0);
+
+	/* make sure all irq status are cleared, twice intended */
+	regmap_update_bits(afe->regmap, AFE_IRQ_MCU_CLR, 0xffff, 0xffff);
+
+skip_regmap:
+	clk_bulk_disable_unprepare(afe_priv->num_clks, afe_priv->clks);
+
+	return 0;
+}
+
+static int mt7986_afe_runtime_resume(struct device *dev)
+{
+	struct mtk_base_afe *afe = dev_get_drvdata(dev);
+	struct mt7986_afe_private *afe_priv = afe->platform_priv;
+	int ret;
+
+	ret = clk_bulk_prepare_enable(afe_priv->num_clks, afe_priv->clks);
+	if (ret)
+		return dev_err_probe(afe->dev, ret, "Failed to enable clocks\n");
+
+	if (!afe->regmap || afe_priv->pm_runtime_bypass_reg_ctl)
+		return 0;
+
+	/* enable clk*/
+	regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, 0x3fff, 0);
+	regmap_update_bits(afe->regmap, AUDIO_ENGEN_CON0, AUD_APLL2_EN_MASK,
+			   AUD_APLL2_EN);
+	regmap_update_bits(afe->regmap, AUDIO_ENGEN_CON0, AUD_26M_EN_MASK,
+			   AUD_26M_EN);
+
+	return 0;
+}
+
+static int mt7986_dai_memif_register(struct mtk_base_afe *afe)
+{
+	struct mtk_base_afe_dai *dai;
+
+	dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
+	if (!dai)
+		return -ENOMEM;
+
+	list_add(&dai->list, &afe->sub_dais);
+
+	dai->dai_drivers = mt7986_memif_dai_driver;
+	dai->num_dai_drivers = ARRAY_SIZE(mt7986_memif_dai_driver);
+
+	dai->dapm_widgets = mt7986_memif_widgets;
+	dai->num_dapm_widgets = ARRAY_SIZE(mt7986_memif_widgets);
+	dai->dapm_routes = mt7986_memif_routes;
+	dai->num_dapm_routes = ARRAY_SIZE(mt7986_memif_routes);
+
+	return 0;
+}
+
+typedef int (*dai_register_cb)(struct mtk_base_afe *);
+static const dai_register_cb dai_register_cbs[] = {
+	mt7986_dai_etdm_register,
+	mt7986_dai_memif_register,
+};
+
+static int mt7986_afe_pcm_dev_probe(struct platform_device *pdev)
+{
+	struct mtk_base_afe *afe;
+	struct mt7986_afe_private *afe_priv;
+	struct device *dev;
+	int i, irq_id, ret;
+
+	afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL);
+	if (!afe)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, afe);
+
+	afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv),
+					  GFP_KERNEL);
+	if (!afe->platform_priv)
+		return -ENOMEM;
+
+	afe_priv = afe->platform_priv;
+	afe->dev = &pdev->dev;
+	dev = afe->dev;
+
+	afe->base_addr = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(afe->base_addr))
+		return PTR_ERR(afe->base_addr);
+
+	/* initial audio related clock */
+	ret = mt7986_init_clock(afe);
+	if (ret)
+		return dev_err_probe(dev, ret, "Cannot initialize clocks\n");
+
+	ret = devm_pm_runtime_enable(dev);
+	if (ret)
+		return ret;
+
+	/* enable clock for regcache get default value from hw */
+	afe_priv->pm_runtime_bypass_reg_ctl = true;
+	pm_runtime_get_sync(&pdev->dev);
+
+	afe->regmap = devm_regmap_init_mmio(&pdev->dev, afe->base_addr,
+		      &mt7986_afe_regmap_config);
+
+	pm_runtime_put_sync(&pdev->dev);
+	if (IS_ERR(afe->regmap))
+		return PTR_ERR(afe->regmap);
+
+	afe_priv->pm_runtime_bypass_reg_ctl = false;
+
+	/* init memif */
+	afe->memif_size = MT7986_MEMIF_NUM;
+	afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif),
+				  GFP_KERNEL);
+	if (!afe->memif)
+		return -ENOMEM;
+
+	for (i = 0; i < afe->memif_size; i++) {
+		afe->memif[i].data = &memif_data[i];
+		afe->memif[i].irq_usage = -1;
+	}
+
+	mutex_init(&afe->irq_alloc_lock);
+
+	/* irq initialize */
+	afe->irqs_size = MT7986_IRQ_NUM;
+	afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs),
+				 GFP_KERNEL);
+	if (!afe->irqs)
+		return -ENOMEM;
+
+	for (i = 0; i < afe->irqs_size; i++)
+		afe->irqs[i].irq_data = &irq_data[i];
+
+	/* request irq */
+	irq_id = platform_get_irq(pdev, 0);
+	if (irq_id < 0)
+		return irq_id;
+
+	ret = devm_request_irq(dev, irq_id, mt7986_afe_irq_handler,
+			       IRQF_TRIGGER_NONE, "asys-isr", (void *)afe);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to request irq for asys-isr\n");
+
+	/* init sub_dais */
+	INIT_LIST_HEAD(&afe->sub_dais);
+
+	for (i = 0; i < ARRAY_SIZE(dai_register_cbs); i++) {
+		ret = dai_register_cbs[i](afe);
+		if (ret)
+			return dev_err_probe(dev, ret, "DAI register failed, i: %d\n", i);
+	}
+
+	/* init dai_driver and component_driver */
+	ret = mtk_afe_combine_sub_dai(afe);
+	if (ret)
+		return dev_err_probe(dev, ret, "mtk_afe_combine_sub_dai fail\n");
+
+	afe->mtk_afe_hardware = &mt7986_afe_hardware;
+	afe->memif_fs = mt7986_memif_fs;
+	afe->irq_fs = mt7986_irq_fs;
+
+	afe->runtime_resume = mt7986_afe_runtime_resume;
+	afe->runtime_suspend = mt7986_afe_runtime_suspend;
+
+	/* register component */
+	ret = devm_snd_soc_register_component(&pdev->dev,
+					      &mtk_afe_pcm_platform,
+					      NULL, 0);
+	if (ret)
+		return dev_err_probe(dev, ret, "Cannot register AFE component\n");
+
+	ret = devm_snd_soc_register_component(afe->dev,
+					      &mt7986_afe_pcm_dai_component,
+					      afe->dai_drivers,
+					      afe->num_dai_drivers);
+	if (ret)
+		return dev_err_probe(dev, ret, "Cannot register PCM DAI component\n");
+
+	return 0;
+}
+
+static void mt7986_afe_pcm_dev_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		mt7986_afe_runtime_suspend(&pdev->dev);
+}
+
+static const struct of_device_id mt7986_afe_pcm_dt_match[] = {
+	{ .compatible = "mediatek,mt7986-afe" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mt7986_afe_pcm_dt_match);
+
+static const struct dev_pm_ops mt7986_afe_pm_ops = {
+	RUNTIME_PM_OPS(mt7986_afe_runtime_suspend,
+		       mt7986_afe_runtime_resume, NULL)
+};
+
+static struct platform_driver mt7986_afe_pcm_driver = {
+	.driver = {
+		   .name = "mt7986-audio",
+		   .of_match_table = mt7986_afe_pcm_dt_match,
+		   .pm = pm_ptr(&mt7986_afe_pm_ops),
+	},
+	.probe = mt7986_afe_pcm_dev_probe,
+	.remove = mt7986_afe_pcm_dev_remove,
+};
+module_platform_driver(mt7986_afe_pcm_driver);
+
+MODULE_DESCRIPTION("MediaTek SoC AFE platform driver for ALSA MT7986");
+MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");
+MODULE_LICENSE("GPL");

linux-7.2.3/sound/soc/mediatek/mt7986/mt7986-dai-etdm.c

@@ -0,0 +1,426 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek ALSA SoC Audio DAI eTDM Control
+ *
+ * Copyright (c) 2023 MediaTek Inc.
+ * Authors: Vic Wu <vic.wu@mediatek.com>
+ *          Maso Huang <maso.huang@mediatek.com>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include "mt7986-afe-common.h"
+#include "mt7986-reg.h"
+
+#define HOPPING_CLK  0
+#define APLL_CLK     1
+#define MTK_DAI_ETDM_FORMAT_I2S   0
+#define MTK_DAI_ETDM_FORMAT_DSPA  4
+#define MTK_DAI_ETDM_FORMAT_DSPB  5
+
+enum {
+	MTK_ETDM_RATE_8K = 0,
+	MTK_ETDM_RATE_12K = 1,
+	MTK_ETDM_RATE_16K = 2,
+	MTK_ETDM_RATE_24K = 3,
+	MTK_ETDM_RATE_32K = 4,
+	MTK_ETDM_RATE_48K = 5,
+	MTK_ETDM_RATE_96K = 7,
+	MTK_ETDM_RATE_192K = 9,
+	MTK_ETDM_RATE_11K = 16,
+	MTK_ETDM_RATE_22K = 17,
+	MTK_ETDM_RATE_44K = 18,
+	MTK_ETDM_RATE_88K = 19,
+	MTK_ETDM_RATE_176K = 20,
+};
+
+struct mtk_dai_etdm_priv {
+	bool bck_inv;
+	bool lrck_inv;
+	bool slave_mode;
+	unsigned int format;
+};
+
+static unsigned int mt7986_etdm_rate_transform(struct device *dev, unsigned int rate)
+{
+	switch (rate) {
+	case 8000:
+		return MTK_ETDM_RATE_8K;
+	case 11025:
+		return MTK_ETDM_RATE_11K;
+	case 12000:
+		return MTK_ETDM_RATE_12K;
+	case 16000:
+		return MTK_ETDM_RATE_16K;
+	case 22050:
+		return MTK_ETDM_RATE_22K;
+	case 24000:
+		return MTK_ETDM_RATE_24K;
+	case 32000:
+		return MTK_ETDM_RATE_32K;
+	case 44100:
+		return MTK_ETDM_RATE_44K;
+	case 48000:
+		return MTK_ETDM_RATE_48K;
+	case 88200:
+		return MTK_ETDM_RATE_88K;
+	case 96000:
+		return MTK_ETDM_RATE_96K;
+	case 176400:
+		return MTK_ETDM_RATE_176K;
+	case 192000:
+		return MTK_ETDM_RATE_192K;
+	default:
+		dev_warn(dev, "%s(), rate %u invalid, using %d!!!\n",
+			 __func__, rate, MTK_ETDM_RATE_48K);
+		return MTK_ETDM_RATE_48K;
+	}
+}
+
+static int get_etdm_wlen(unsigned int bitwidth)
+{
+	return bitwidth <= 16 ? 16 : 32;
+}
+
+/* dai component */
+/* interconnection */
+
+static const struct snd_kcontrol_new o124_mix[] = {
+	SOC_DAPM_SINGLE_AUTODISABLE("I032_Switch", AFE_CONN124_1, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new o125_mix[] = {
+	SOC_DAPM_SINGLE_AUTODISABLE("I033_Switch", AFE_CONN125_1, 1, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget mtk_dai_etdm_widgets[] = {
+
+	/* DL */
+	SND_SOC_DAPM_MIXER("I150", SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_MIXER("I151", SND_SOC_NOPM, 0, 0, NULL, 0),
+	/* UL */
+	SND_SOC_DAPM_MIXER("O124", SND_SOC_NOPM, 0, 0, o124_mix, ARRAY_SIZE(o124_mix)),
+	SND_SOC_DAPM_MIXER("O125", SND_SOC_NOPM, 0, 0, o125_mix, ARRAY_SIZE(o125_mix)),
+};
+
+static const struct snd_soc_dapm_route mtk_dai_etdm_routes[] = {
+	{"I150", NULL, "ETDM Capture"},
+	{"I151", NULL, "ETDM Capture"},
+	{"ETDM Playback", NULL, "O124"},
+	{"ETDM Playback", NULL, "O125"},
+	{"O124", "I032_Switch", "I032"},
+	{"O125", "I033_Switch", "I033"},
+};
+
+/* dai ops */
+static int mtk_dai_etdm_startup(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	struct mt7986_afe_private *afe_priv = afe->platform_priv;
+	int ret;
+
+	ret = clk_bulk_prepare_enable(afe_priv->num_clks, afe_priv->clks);
+	if (ret)
+		return dev_err_probe(afe->dev, ret, "Failed to enable clocks\n");
+
+	regmap_update_bits(afe->regmap, AUDIO_TOP_CON2, CLK_OUT5_PDN_MASK, 0);
+	regmap_update_bits(afe->regmap, AUDIO_TOP_CON2, CLK_IN5_PDN_MASK, 0);
+
+	return 0;
+}
+
+static void mtk_dai_etdm_shutdown(struct snd_pcm_substream *substream,
+				  struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	struct mt7986_afe_private *afe_priv = afe->platform_priv;
+
+	regmap_update_bits(afe->regmap, AUDIO_TOP_CON2, CLK_OUT5_PDN_MASK,
+			   CLK_OUT5_PDN);
+	regmap_update_bits(afe->regmap, AUDIO_TOP_CON2, CLK_IN5_PDN_MASK,
+			   CLK_IN5_PDN);
+
+	clk_bulk_disable_unprepare(afe_priv->num_clks, afe_priv->clks);
+}
+
+static unsigned int get_etdm_ch_fixup(unsigned int channels)
+{
+	if (channels > 16)
+		return 24;
+	else if (channels > 8)
+		return 16;
+	else if (channels > 4)
+		return 8;
+	else if (channels > 2)
+		return 4;
+	else
+		return 2;
+}
+
+static int mtk_dai_etdm_config(struct mtk_base_afe *afe,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *dai,
+			       int stream)
+{
+	struct mt7986_afe_private *afe_priv = afe->platform_priv;
+	struct mtk_dai_etdm_priv *etdm_data = afe_priv->dai_priv[dai->id];
+	unsigned int rate = params_rate(params);
+	unsigned int etdm_rate = mt7986_etdm_rate_transform(afe->dev, rate);
+	unsigned int afe_rate = mt7986_afe_rate_transform(afe->dev, rate);
+	unsigned int channels = params_channels(params);
+	unsigned int bit_width = params_width(params);
+	unsigned int wlen = get_etdm_wlen(bit_width);
+	unsigned int val = 0;
+	unsigned int mask = 0;
+
+	dev_dbg(afe->dev, "%s(), stream %d, rate %u, bitwidth %u\n",
+		 __func__, stream, rate, bit_width);
+
+	/* CON0 */
+	mask |= ETDM_BIT_LEN_MASK;
+	val |= FIELD_PREP(ETDM_BIT_LEN_MASK, bit_width - 1);
+	mask |= ETDM_WRD_LEN_MASK;
+	val |= FIELD_PREP(ETDM_WRD_LEN_MASK, wlen - 1);
+	mask |= ETDM_FMT_MASK;
+	val |= FIELD_PREP(ETDM_FMT_MASK, etdm_data->format);
+	mask |= ETDM_CH_NUM_MASK;
+	val |= FIELD_PREP(ETDM_CH_NUM_MASK, get_etdm_ch_fixup(channels) - 1);
+	mask |= RELATCH_SRC_MASK;
+	val |= FIELD_PREP(RELATCH_SRC_MASK, APLL_CLK);
+
+	switch (stream) {
+	case SNDRV_PCM_STREAM_PLAYBACK:
+		/* set ETDM_OUT5_CON0 */
+		regmap_update_bits(afe->regmap, ETDM_OUT5_CON0, mask, val);
+
+		/* set ETDM_OUT5_CON4 */
+		regmap_update_bits(afe->regmap, ETDM_OUT5_CON4,
+				   OUT_RELATCH_MASK, OUT_RELATCH(afe_rate));
+		regmap_update_bits(afe->regmap, ETDM_OUT5_CON4,
+				   OUT_CLK_SRC_MASK, OUT_CLK_SRC(APLL_CLK));
+		regmap_update_bits(afe->regmap, ETDM_OUT5_CON4,
+				   OUT_SEL_FS_MASK, OUT_SEL_FS(etdm_rate));
+
+		/* set ETDM_OUT5_CON5 */
+		regmap_update_bits(afe->regmap, ETDM_OUT5_CON5,
+				   ETDM_CLK_DIV_MASK, ETDM_CLK_DIV);
+		break;
+	case SNDRV_PCM_STREAM_CAPTURE:
+		/* set ETDM_IN5_CON0 */
+		regmap_update_bits(afe->regmap, ETDM_IN5_CON0, mask, val);
+		regmap_update_bits(afe->regmap, ETDM_IN5_CON0,
+				   ETDM_SYNC_MASK, ETDM_SYNC);
+
+		/* set ETDM_IN5_CON2 */
+		regmap_update_bits(afe->regmap, ETDM_IN5_CON2,
+				   IN_CLK_SRC_MASK, IN_CLK_SRC(APLL_CLK));
+
+		/* set ETDM_IN5_CON3 */
+		regmap_update_bits(afe->regmap, ETDM_IN5_CON3,
+				   IN_SEL_FS_MASK, IN_SEL_FS(etdm_rate));
+
+		/* set ETDM_IN5_CON4 */
+		regmap_update_bits(afe->regmap, ETDM_IN5_CON4,
+				   IN_RELATCH_MASK, IN_RELATCH(afe_rate));
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int mtk_dai_etdm_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	unsigned int rate = params_rate(params);
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+
+	switch (rate) {
+	case 8000:
+	case 12000:
+	case 16000:
+	case 24000:
+	case 32000:
+	case 48000:
+	case 96000:
+	case 192000:
+		mtk_dai_etdm_config(afe, params, dai, SNDRV_PCM_STREAM_PLAYBACK);
+		mtk_dai_etdm_config(afe, params, dai, SNDRV_PCM_STREAM_CAPTURE);
+		return 0;
+	default:
+		dev_err(afe->dev,
+			"Sample rate %d invalid. Supported rates: 8/12/16/24/32/48/96/192 kHz\n",
+			rate);
+		return -EINVAL;
+	}
+}
+
+static int mtk_dai_etdm_trigger(struct snd_pcm_substream *substream, int cmd,
+				struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+
+	dev_dbg(afe->dev, "%s(), cmd %d, dai id %d\n", __func__, cmd, dai->id);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		regmap_update_bits(afe->regmap, ETDM_IN5_CON0, ETDM_EN_MASK,
+				   ETDM_EN);
+		regmap_update_bits(afe->regmap, ETDM_OUT5_CON0, ETDM_EN_MASK,
+				   ETDM_EN);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		regmap_update_bits(afe->regmap, ETDM_IN5_CON0, ETDM_EN_MASK,
+				   0);
+		regmap_update_bits(afe->regmap, ETDM_OUT5_CON0, ETDM_EN_MASK,
+				   0);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int mtk_dai_etdm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	struct mt7986_afe_private *afe_priv = afe->platform_priv;
+	struct mtk_dai_etdm_priv *etdm_data;
+	void *priv_data;
+
+	switch (dai->id) {
+	case MT7986_DAI_ETDM:
+		break;
+	default:
+		dev_warn(afe->dev, "%s(), id %d not support\n",
+			 __func__, dai->id);
+		return -EINVAL;
+	}
+
+	priv_data = devm_kzalloc(afe->dev, sizeof(struct mtk_dai_etdm_priv),
+				 GFP_KERNEL);
+	if (!priv_data)
+		return -ENOMEM;
+
+	afe_priv->dai_priv[dai->id] = priv_data;
+	etdm_data = afe_priv->dai_priv[dai->id];
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		etdm_data->format = MTK_DAI_ETDM_FORMAT_I2S;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		etdm_data->format = MTK_DAI_ETDM_FORMAT_DSPA;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		etdm_data->format = MTK_DAI_ETDM_FORMAT_DSPB;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		etdm_data->bck_inv = false;
+		etdm_data->lrck_inv = false;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		etdm_data->bck_inv = false;
+		etdm_data->lrck_inv = true;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		etdm_data->bck_inv = true;
+		etdm_data->lrck_inv = false;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		etdm_data->bck_inv = true;
+		etdm_data->lrck_inv = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBP_CFP:
+		etdm_data->slave_mode = true;
+		break;
+	case SND_SOC_DAIFMT_CBC_CFC:
+		etdm_data->slave_mode = false;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops mtk_dai_etdm_ops = {
+	.startup = mtk_dai_etdm_startup,
+	.shutdown = mtk_dai_etdm_shutdown,
+	.hw_params = mtk_dai_etdm_hw_params,
+	.trigger = mtk_dai_etdm_trigger,
+	.set_fmt = mtk_dai_etdm_set_fmt,
+};
+
+/* dai driver */
+#define MTK_ETDM_RATES (SNDRV_PCM_RATE_8000_48000 |\
+			SNDRV_PCM_RATE_88200 |\
+			SNDRV_PCM_RATE_96000 |\
+			SNDRV_PCM_RATE_176400 |\
+			SNDRV_PCM_RATE_192000)
+
+#define MTK_ETDM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+			  SNDRV_PCM_FMTBIT_S24_LE |\
+			  SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver mtk_dai_etdm_driver[] = {
+	{
+		.name = "ETDM",
+		.id = MT7986_DAI_ETDM,
+		.capture = {
+			.stream_name = "ETDM Capture",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = MTK_ETDM_RATES,
+			.formats = MTK_ETDM_FORMATS,
+		},
+		.playback = {
+			.stream_name = "ETDM Playback",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = MTK_ETDM_RATES,
+			.formats = MTK_ETDM_FORMATS,
+		},
+		.ops = &mtk_dai_etdm_ops,
+		.symmetric_rate = 1,
+		.symmetric_sample_bits = 1,
+	},
+};
+
+int mt7986_dai_etdm_register(struct mtk_base_afe *afe)
+{
+	struct mtk_base_afe_dai *dai;
+
+	dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
+	if (!dai)
+		return -ENOMEM;
+
+	list_add(&dai->list, &afe->sub_dais);
+
+	dai->dai_drivers = mtk_dai_etdm_driver;
+	dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_etdm_driver);
+
+	dai->dapm_widgets = mtk_dai_etdm_widgets;
+	dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_etdm_widgets);
+	dai->dapm_routes = mtk_dai_etdm_routes;
+	dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_etdm_routes);
+
+	return 0;
+}

linux-7.2.3/sound/soc/mediatek/mt7986/mt7986-reg.h

@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mt7986-reg.h  --  MediaTek 7986 audio driver reg definition
+ *
+ * Copyright (c) 2023 MediaTek Inc.
+ * Authors: Vic Wu <vic.wu@mediatek.com>
+ *          Maso Huang <maso.huang@mediatek.com>
+ */
+
+#ifndef _MT7986_REG_H_
+#define _MT7986_REG_H_
+
+#define AUDIO_TOP_CON2                  0x0008
+#define AUDIO_TOP_CON4                  0x0010
+#define AUDIO_ENGEN_CON0                0x0014
+#define AFE_IRQ_MCU_EN                  0x0100
+#define AFE_IRQ_MCU_STATUS              0x0120
+#define AFE_IRQ_MCU_CLR                 0x0128
+#define AFE_IRQ0_MCU_CFG0               0x0140
+#define AFE_IRQ0_MCU_CFG1               0x0144
+#define AFE_IRQ1_MCU_CFG0               0x0148
+#define AFE_IRQ1_MCU_CFG1               0x014c
+#define AFE_IRQ2_MCU_CFG0               0x0150
+#define AFE_IRQ2_MCU_CFG1               0x0154
+#define ETDM_IN5_CON0                   0x13f0
+#define ETDM_IN5_CON1                   0x13f4
+#define ETDM_IN5_CON2                   0x13f8
+#define ETDM_IN5_CON3                   0x13fc
+#define ETDM_IN5_CON4                   0x1400
+#define ETDM_OUT5_CON0                  0x1570
+#define ETDM_OUT5_CON4                  0x1580
+#define ETDM_OUT5_CON5                  0x1584
+#define ETDM_4_7_COWORK_CON0            0x15e0
+#define ETDM_4_7_COWORK_CON1            0x15e4
+#define AFE_CONN018_1                   0x1b44
+#define AFE_CONN018_4                   0x1b50
+#define AFE_CONN019_1                   0x1b64
+#define AFE_CONN019_4                   0x1b70
+#define AFE_CONN124_1                   0x2884
+#define AFE_CONN124_4                   0x2890
+#define AFE_CONN125_1                   0x28a4
+#define AFE_CONN125_4                   0x28b0
+#define AFE_CONN_RS_0                   0x3920
+#define AFE_CONN_RS_3                   0x392c
+#define AFE_CONN_16BIT_0                0x3960
+#define AFE_CONN_16BIT_3                0x396c
+#define AFE_CONN_24BIT_0                0x3980
+#define AFE_CONN_24BIT_3                0x398c
+#define AFE_MEMIF_CON0                  0x3d98
+#define AFE_MEMIF_RD_MON                0x3da0
+#define AFE_MEMIF_WR_MON                0x3da4
+#define AFE_DL0_BASE_MSB                0x3e40
+#define AFE_DL0_BASE                    0x3e44
+#define AFE_DL0_CUR_MSB                 0x3e48
+#define AFE_DL0_CUR                     0x3e4c
+#define AFE_DL0_END_MSB                 0x3e50
+#define AFE_DL0_END                     0x3e54
+#define AFE_DL0_RCH_MON                 0x3e58
+#define AFE_DL0_LCH_MON                 0x3e5c
+#define AFE_DL0_CON0                    0x3e60
+#define AFE_VUL0_BASE_MSB               0x4220
+#define AFE_VUL0_BASE                   0x4224
+#define AFE_VUL0_CUR_MSB                0x4228
+#define AFE_VUL0_CUR                    0x422c
+#define AFE_VUL0_END_MSB                0x4230
+#define AFE_VUL0_END                    0x4234
+#define AFE_VUL0_CON0                   0x4238
+
+#define AFE_MAX_REGISTER AFE_VUL0_CON0
+#define AFE_IRQ_STATUS_BITS             0x7
+#define AFE_IRQ_CNT_SHIFT               0
+#define AFE_IRQ_CNT_MASK	        0xffffff
+
+/* AUDIO_TOP_CON2 */
+#define CLK_OUT5_PDN                    BIT(14)
+#define CLK_OUT5_PDN_MASK               BIT(14)
+#define CLK_IN5_PDN                     BIT(7)
+#define CLK_IN5_PDN_MASK                BIT(7)
+
+/* AUDIO_TOP_CON4 */
+#define PDN_APLL_TUNER2                 BIT(12)
+#define PDN_APLL_TUNER2_MASK            BIT(12)
+
+/* AUDIO_ENGEN_CON0 */
+#define AUD_APLL2_EN                    BIT(3)
+#define AUD_APLL2_EN_MASK               BIT(3)
+#define AUD_26M_EN                      BIT(0)
+#define AUD_26M_EN_MASK                 BIT(0)
+
+/* AFE_DL0_CON0 */
+#define DL0_ON_SFT                      28
+#define DL0_ON_MASK                     0x1
+#define DL0_ON_MASK_SFT                 BIT(28)
+#define DL0_MINLEN_SFT                  20
+#define DL0_MINLEN_MASK                 0xf
+#define DL0_MINLEN_MASK_SFT             (0xf << 20)
+#define DL0_MODE_SFT                    8
+#define DL0_MODE_MASK                   0x1f
+#define DL0_MODE_MASK_SFT               (0x1f << 8)
+#define DL0_PBUF_SIZE_SFT               5
+#define DL0_PBUF_SIZE_MASK              0x3
+#define DL0_PBUF_SIZE_MASK_SFT          (0x3 << 5)
+#define DL0_MONO_SFT                    4
+#define DL0_MONO_MASK                   0x1
+#define DL0_MONO_MASK_SFT               BIT(4)
+#define DL0_HALIGN_SFT                  2
+#define DL0_HALIGN_MASK                 0x1
+#define DL0_HALIGN_MASK_SFT             BIT(2)
+#define DL0_HD_MODE_SFT                 0
+#define DL0_HD_MODE_MASK                0x3
+#define DL0_HD_MODE_MASK_SFT            (0x3 << 0)
+
+/* AFE_VUL0_CON0 */
+#define VUL0_ON_SFT                     28
+#define VUL0_ON_MASK                    0x1
+#define VUL0_ON_MASK_SFT                BIT(28)
+#define VUL0_MODE_SFT                   8
+#define VUL0_MODE_MASK                  0x1f
+#define VUL0_MODE_MASK_SFT              (0x1f << 8)
+#define VUL0_MONO_SFT                   4
+#define VUL0_MONO_MASK                  0x1
+#define VUL0_MONO_MASK_SFT              BIT(4)
+#define VUL0_HALIGN_SFT                 2
+#define VUL0_HALIGN_MASK                0x1
+#define VUL0_HALIGN_MASK_SFT            BIT(2)
+#define VUL0_HD_MODE_SFT                0
+#define VUL0_HD_MODE_MASK               0x3
+#define VUL0_HD_MODE_MASK_SFT           (0x3 << 0)
+
+/* AFE_IRQ_MCU_CON */
+#define IRQ_MCU_MODE_SFT                4
+#define IRQ_MCU_MODE_MASK               0x1f
+#define IRQ_MCU_MODE_MASK_SFT           (0x1f << 4)
+#define IRQ_MCU_ON_SFT                  0
+#define IRQ_MCU_ON_MASK                 0x1
+#define IRQ_MCU_ON_MASK_SFT             BIT(0)
+#define IRQ0_MCU_CLR_SFT                0
+#define IRQ0_MCU_CLR_MASK               0x1
+#define IRQ0_MCU_CLR_MASK_SFT           BIT(0)
+#define IRQ1_MCU_CLR_SFT                1
+#define IRQ1_MCU_CLR_MASK               0x1
+#define IRQ1_MCU_CLR_MASK_SFT           BIT(1)
+#define IRQ2_MCU_CLR_SFT                2
+#define IRQ2_MCU_CLR_MASK               0x1
+#define IRQ2_MCU_CLR_MASK_SFT           BIT(2)
+
+/* ETDM_IN5_CON2 */
+#define IN_CLK_SRC(x)                   ((x) << 10)
+#define IN_CLK_SRC_SFT                  10
+#define IN_CLK_SRC_MASK                 GENMASK(12, 10)
+
+/* ETDM_IN5_CON3 */
+#define IN_SEL_FS(x)                    ((x) << 26)
+#define IN_SEL_FS_SFT                   26
+#define IN_SEL_FS_MASK                  GENMASK(30, 26)
+
+/* ETDM_IN5_CON4 */
+#define IN_RELATCH(x)                   ((x) << 20)
+#define IN_RELATCH_SFT                  20
+#define IN_RELATCH_MASK                 GENMASK(24, 20)
+#define IN_CLK_INV                      BIT(18)
+#define IN_CLK_INV_MASK                 BIT(18)
+
+/* ETDM_IN5_CON0 & ETDM_OUT5_CON0 */
+#define RELATCH_SRC_MASK                GENMASK(30, 28)
+#define ETDM_CH_NUM_MASK                GENMASK(27, 23)
+#define ETDM_WRD_LEN_MASK               GENMASK(20, 16)
+#define ETDM_BIT_LEN_MASK               GENMASK(15, 11)
+#define ETDM_FMT_MASK                   GENMASK(8, 6)
+#define ETDM_SYNC                       BIT(1)
+#define ETDM_SYNC_MASK                  BIT(1)
+#define ETDM_EN                         BIT(0)
+#define ETDM_EN_MASK                    BIT(0)
+
+/* ETDM_OUT5_CON4 */
+#define OUT_RELATCH(x)                  ((x) << 24)
+#define OUT_RELATCH_SFT                 24
+#define OUT_RELATCH_MASK                GENMASK(28, 24)
+#define OUT_CLK_SRC(x)                  ((x) << 6)
+#define OUT_CLK_SRC_SFT                 6
+#define OUT_CLK_SRC_MASK                GENMASK(8, 6)
+#define OUT_SEL_FS(x)                   (x)
+#define OUT_SEL_FS_SFT                  0
+#define OUT_SEL_FS_MASK                 GENMASK(4, 0)
+
+/* ETDM_OUT5_CON5 */
+#define ETDM_CLK_DIV                    BIT(12)
+#define ETDM_CLK_DIV_MASK               BIT(12)
+#define OUT_CLK_INV                     BIT(9)
+#define OUT_CLK_INV_MASK                BIT(9)
+
+/* ETDM_4_7_COWORK_CON0 */
+#define OUT_SEL(x)                      ((x) << 12)
+#define OUT_SEL_SFT                     12
+#define OUT_SEL_MASK                    GENMASK(15, 12)
+#endif

linux-7.2.3/sound/soc/mediatek/mt7986/mt7986-wm8960.c

@@ -0,0 +1,175 @@
+// 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"
+
+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,
+		.playback_only = 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,
+		.capture_only = 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_CBC_CFC |
+			SND_SOC_DAIFMT_GATED,
+		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 device_node *platform_dai_node, *codec_dai_node;
+	int ret, i;
+
+	card->dev = &pdev->dev;
+
+	platform = of_get_child_by_name(pdev->dev.of_node, "platform");
+
+	if (platform) {
+		platform_dai_node = of_parse_phandle(platform, "sound-dai", 0);
+		of_node_put(platform);
+
+		if (!platform_dai_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 = platform_dai_node;
+	}
+
+	codec = of_get_child_by_name(pdev->dev.of_node, "codec");
+
+	if (codec) {
+		codec_dai_node = of_parse_phandle(codec, "sound-dai", 0);
+		of_node_put(codec);
+
+		if (!codec_dai_node) {
+			of_node_put(platform_dai_node);
+			dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
+			return -EINVAL;
+		}
+	} else {
+		of_node_put(platform_dai_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 = codec_dai_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_probe(&pdev->dev, ret, "%s snd_soc_register_card fail\n", __func__);
+		goto err_of_node_put;
+	}
+
+err_of_node_put:
+	of_node_put(platform_dai_node);
+	of_node_put(codec_dai_node);
+	return ret;
+}
+
+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,
+};
+
+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");