Resguardo inicial

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

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+# platform driver
+snd-soc-mtk-common-y := mtk-afe-platform-driver.o mtk-afe-fe-dai.o mtk-dsp-sof-common.o mtk-soundcard-driver.o
+snd-soc-mtk-common-y += mtk-dai-adda-common.o
+
+obj-$(CONFIG_SND_SOC_MEDIATEK) += snd-soc-mtk-common.o
+
+obj-$(CONFIG_SND_SOC_MTK_BTCVSD) += mtk-btcvsd.o

linux-7.2.3/sound/soc/mediatek/common/mtk-afe-fe-dai.c

@@ -0,0 +1,588 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * mtk-afe-fe-dais.c  --  Mediatek afe fe dai operator
+ *
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Garlic Tseng <garlic.tseng@mediatek.com>
+ */
+
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include "mtk-afe-platform-driver.h"
+#include <sound/pcm_params.h>
+#include "mtk-afe-fe-dai.h"
+#include "mtk-base-afe.h"
+
+#define AFE_BASE_END_OFFSET 8
+
+static int mtk_regmap_update_bits(struct regmap *map, int reg,
+			   unsigned int mask,
+			   unsigned int val, int shift)
+{
+	if (reg < 0 || WARN_ON_ONCE(shift < 0))
+		return 0;
+	return regmap_update_bits(map, reg, mask << shift, val << shift);
+}
+
+static int mtk_regmap_write(struct regmap *map, int reg, unsigned int val)
+{
+	if (reg < 0)
+		return 0;
+	return regmap_write(map, reg, val);
+}
+
+int mtk_afe_fe_startup(struct snd_pcm_substream *substream,
+		       struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int memif_num = snd_soc_rtd_to_cpu(rtd, 0)->id;
+	struct mtk_base_afe_memif *memif = &afe->memif[memif_num];
+	const struct snd_pcm_hardware *mtk_afe_hardware = afe->mtk_afe_hardware;
+	int ret;
+
+	memif->substream = substream;
+
+	snd_pcm_hw_constraint_step(substream->runtime, 0,
+				   SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16);
+	/* enable agent */
+	mtk_regmap_update_bits(afe->regmap, memif->data->agent_disable_reg,
+			       1, 0, memif->data->agent_disable_shift);
+
+	snd_soc_set_runtime_hwparams(substream, mtk_afe_hardware);
+
+	/*
+	 * Capture cannot use ping-pong buffer since hw_ptr at IRQ may be
+	 * smaller than period_size due to AFE's internal buffer.
+	 * This easily leads to overrun when avail_min is period_size.
+	 * One more period can hold the possible unread buffer.
+	 */
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+		int periods_max = mtk_afe_hardware->periods_max;
+
+		ret = snd_pcm_hw_constraint_minmax(runtime,
+						   SNDRV_PCM_HW_PARAM_PERIODS,
+						   3, periods_max);
+		if (ret < 0) {
+			dev_err(afe->dev, "hw_constraint_minmax failed\n");
+			return ret;
+		}
+	}
+
+	ret = snd_pcm_hw_constraint_integer(runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0)
+		dev_err(afe->dev, "snd_pcm_hw_constraint_integer failed\n");
+
+	/* dynamic allocate irq to memif */
+	if (memif->irq_usage < 0) {
+		int irq_id = mtk_dynamic_irq_acquire(afe);
+
+		if (irq_id != afe->irqs_size) {
+			/* link */
+			memif->irq_usage = irq_id;
+		} else {
+			dev_err(afe->dev, "%s() error: no more asys irq\n",
+				__func__);
+			ret = -EBUSY;
+		}
+	}
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_fe_startup);
+
+void mtk_afe_fe_shutdown(struct snd_pcm_substream *substream,
+			 struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	struct mtk_base_afe_memif *memif = &afe->memif[snd_soc_rtd_to_cpu(rtd, 0)->id];
+	int irq_id;
+
+	irq_id = memif->irq_usage;
+
+	mtk_regmap_update_bits(afe->regmap, memif->data->agent_disable_reg,
+			       1, 1, memif->data->agent_disable_shift);
+
+	if (!memif->const_irq) {
+		mtk_dynamic_irq_release(afe, irq_id);
+		memif->irq_usage = -1;
+		memif->substream = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(mtk_afe_fe_shutdown);
+
+int mtk_afe_fe_hw_params(struct snd_pcm_substream *substream,
+			 struct snd_pcm_hw_params *params,
+			 struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	int id = snd_soc_rtd_to_cpu(rtd, 0)->id;
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+	int ret;
+	unsigned int channels = params_channels(params);
+	unsigned int rate = params_rate(params);
+	snd_pcm_format_t format = params_format(params);
+
+	if (afe->request_dram_resource)
+		afe->request_dram_resource(afe->dev);
+
+	dev_dbg(afe->dev, "%s(), %s, ch %d, rate %d, fmt %d, dma_addr %pad, dma_area %p, dma_bytes 0x%zx\n",
+		__func__, memif->data->name,
+		channels, rate, format,
+		&substream->runtime->dma_addr,
+		substream->runtime->dma_area,
+		substream->runtime->dma_bytes);
+
+	memset_io((void __force __iomem *)substream->runtime->dma_area, 0,
+		  substream->runtime->dma_bytes);
+
+	/* set addr */
+	ret = mtk_memif_set_addr(afe, id,
+				 substream->runtime->dma_area,
+				 substream->runtime->dma_addr,
+				 substream->runtime->dma_bytes);
+	if (ret) {
+		dev_err(afe->dev, "%s(), error, id %d, set addr, ret %d\n",
+			__func__, id, ret);
+		return ret;
+	}
+
+	/* set channel */
+	ret = mtk_memif_set_channel(afe, id, channels);
+	if (ret) {
+		dev_err(afe->dev, "%s(), error, id %d, set channel %d, ret %d\n",
+			__func__, id, channels, ret);
+		return ret;
+	}
+
+	/* set rate */
+	ret = mtk_memif_set_rate_substream(substream, id, rate);
+	if (ret) {
+		dev_err(afe->dev, "%s(), error, id %d, set rate %d, ret %d\n",
+			__func__, id, rate, ret);
+		return ret;
+	}
+
+	/* set format */
+	ret = mtk_memif_set_format(afe, id, format);
+	if (ret) {
+		dev_err(afe->dev, "%s(), error, id %d, set format %d, ret %d\n",
+			__func__, id, format, ret);
+		return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_fe_hw_params);
+
+int mtk_afe_fe_hw_free(struct snd_pcm_substream *substream,
+		       struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+
+	if (afe->release_dram_resource)
+		afe->release_dram_resource(afe->dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_fe_hw_free);
+
+int mtk_afe_fe_trigger(struct snd_pcm_substream *substream, int cmd,
+		       struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct snd_pcm_runtime * const runtime = substream->runtime;
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	int id = snd_soc_rtd_to_cpu(rtd, 0)->id;
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+	struct mtk_base_afe_irq *irqs = &afe->irqs[memif->irq_usage];
+	const struct mtk_base_irq_data *irq_data = irqs->irq_data;
+	unsigned int counter = runtime->period_size;
+	int fs;
+	int ret;
+
+	dev_dbg(afe->dev, "%s %s cmd=%d\n", __func__, memif->data->name, cmd);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		ret = mtk_memif_set_enable(afe, id);
+		if (ret) {
+			dev_err(afe->dev, "%s(), error, id %d, memif enable, ret %d\n",
+				__func__, id, ret);
+			return ret;
+		}
+
+		/* set irq counter */
+		mtk_regmap_update_bits(afe->regmap, irq_data->irq_cnt_reg,
+				       irq_data->irq_cnt_maskbit, counter,
+				       irq_data->irq_cnt_shift);
+
+		/* set irq fs */
+		fs = afe->irq_fs(substream, runtime->rate);
+
+		if (fs < 0)
+			return -EINVAL;
+
+		mtk_regmap_update_bits(afe->regmap, irq_data->irq_fs_reg,
+				       irq_data->irq_fs_maskbit, fs,
+				       irq_data->irq_fs_shift);
+
+		/* enable interrupt */
+		mtk_regmap_update_bits(afe->regmap, irq_data->irq_en_reg,
+				       1, 1, irq_data->irq_en_shift);
+
+		return 0;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		ret = mtk_memif_set_disable(afe, id);
+		if (ret) {
+			dev_err(afe->dev, "%s(), error, id %d, memif enable, ret %d\n",
+				__func__, id, ret);
+		}
+
+		/* disable interrupt */
+		mtk_regmap_update_bits(afe->regmap, irq_data->irq_en_reg,
+				       1, 0, irq_data->irq_en_shift);
+		/* and clear pending IRQ */
+		mtk_regmap_write(afe->regmap, irq_data->irq_clr_reg,
+				 1 << irq_data->irq_clr_shift);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+EXPORT_SYMBOL_GPL(mtk_afe_fe_trigger);
+
+int mtk_afe_fe_prepare(struct snd_pcm_substream *substream,
+		       struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd  = snd_soc_substream_to_rtd(substream);
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	int id = snd_soc_rtd_to_cpu(rtd, 0)->id;
+	int pbuf_size;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		if (afe->get_memif_pbuf_size) {
+			pbuf_size = afe->get_memif_pbuf_size(substream);
+			mtk_memif_set_pbuf_size(afe, id, pbuf_size);
+		}
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_fe_prepare);
+
+const struct snd_soc_dai_ops mtk_afe_fe_ops = {
+	.startup	= mtk_afe_fe_startup,
+	.shutdown	= mtk_afe_fe_shutdown,
+	.hw_params	= mtk_afe_fe_hw_params,
+	.hw_free	= mtk_afe_fe_hw_free,
+	.prepare	= mtk_afe_fe_prepare,
+	.trigger	= mtk_afe_fe_trigger,
+};
+EXPORT_SYMBOL_GPL(mtk_afe_fe_ops);
+
+int mtk_dynamic_irq_acquire(struct mtk_base_afe *afe)
+{
+	int i;
+
+	guard(mutex)(&afe->irq_alloc_lock);
+	for (i = 0; i < afe->irqs_size; ++i) {
+		if (afe->irqs[i].irq_occupyed == 0) {
+			afe->irqs[i].irq_occupyed = 1;
+			return i;
+		}
+	}
+	return afe->irqs_size;
+}
+EXPORT_SYMBOL_GPL(mtk_dynamic_irq_acquire);
+
+int mtk_dynamic_irq_release(struct mtk_base_afe *afe, int irq_id)
+{
+	guard(mutex)(&afe->irq_alloc_lock);
+	if (irq_id >= 0 && irq_id < afe->irqs_size) {
+		afe->irqs[irq_id].irq_occupyed = 0;
+		return 0;
+	}
+	return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(mtk_dynamic_irq_release);
+
+int mtk_afe_suspend(struct snd_soc_component *component)
+{
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+	struct device *dev = afe->dev;
+	struct regmap *regmap = afe->regmap;
+	int i;
+
+	if (pm_runtime_status_suspended(dev) || afe->suspended)
+		return 0;
+
+	if (!afe->reg_back_up)
+		afe->reg_back_up =
+			devm_kcalloc(dev, afe->reg_back_up_list_num,
+				     sizeof(unsigned int), GFP_KERNEL);
+
+	if (afe->reg_back_up) {
+		for (i = 0; i < afe->reg_back_up_list_num; i++)
+			regmap_read(regmap, afe->reg_back_up_list[i],
+				    &afe->reg_back_up[i]);
+	}
+
+	afe->suspended = true;
+	afe->runtime_suspend(dev);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_suspend);
+
+int mtk_afe_resume(struct snd_soc_component *component)
+{
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+	struct device *dev = afe->dev;
+	struct regmap *regmap = afe->regmap;
+	int i;
+
+	if (pm_runtime_status_suspended(dev) || !afe->suspended)
+		return 0;
+
+	afe->runtime_resume(dev);
+
+	if (!afe->reg_back_up) {
+		dev_dbg(dev, "%s no reg_backup\n", __func__);
+	} else {
+		for (i = 0; i < afe->reg_back_up_list_num; i++)
+			mtk_regmap_write(regmap, afe->reg_back_up_list[i],
+					 afe->reg_back_up[i]);
+	}
+
+	afe->suspended = false;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_resume);
+
+int mtk_memif_set_enable(struct mtk_base_afe *afe, int id)
+{
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+
+	if (memif->data->enable_shift < 0) {
+		dev_warn(afe->dev, "%s(), error, id %d, enable_shift < 0\n",
+			 __func__, id);
+		return 0;
+	}
+	return mtk_regmap_update_bits(afe->regmap, memif->data->enable_reg,
+				      1, 1, memif->data->enable_shift);
+}
+EXPORT_SYMBOL_GPL(mtk_memif_set_enable);
+
+int mtk_memif_set_disable(struct mtk_base_afe *afe, int id)
+{
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+
+	if (memif->data->enable_shift < 0) {
+		dev_warn(afe->dev, "%s(), error, id %d, enable_shift < 0\n",
+			 __func__, id);
+		return 0;
+	}
+	return mtk_regmap_update_bits(afe->regmap, memif->data->enable_reg,
+				      1, 0, memif->data->enable_shift);
+}
+EXPORT_SYMBOL_GPL(mtk_memif_set_disable);
+
+int mtk_memif_set_addr(struct mtk_base_afe *afe, int id,
+		       unsigned char *dma_area,
+		       dma_addr_t dma_addr,
+		       size_t dma_bytes)
+{
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+	int msb_at_bit33 = upper_32_bits(dma_addr) ? 1 : 0;
+	unsigned int phys_buf_addr = lower_32_bits(dma_addr);
+	unsigned int phys_buf_addr_upper_32 = upper_32_bits(dma_addr);
+
+	memif->dma_area = dma_area;
+	memif->dma_addr = dma_addr;
+	memif->dma_bytes = dma_bytes;
+
+	/* start */
+	mtk_regmap_write(afe->regmap, memif->data->reg_ofs_base,
+			 phys_buf_addr);
+	/* end */
+	if (memif->data->reg_ofs_end)
+		mtk_regmap_write(afe->regmap,
+				 memif->data->reg_ofs_end,
+				 phys_buf_addr + dma_bytes - 1);
+	else
+		mtk_regmap_write(afe->regmap,
+				 memif->data->reg_ofs_base +
+				 AFE_BASE_END_OFFSET,
+				 phys_buf_addr + dma_bytes - 1);
+
+	/* set start, end, upper 32 bits */
+	if (memif->data->reg_ofs_base_msb) {
+		mtk_regmap_write(afe->regmap, memif->data->reg_ofs_base_msb,
+				 phys_buf_addr_upper_32);
+		mtk_regmap_write(afe->regmap,
+				 memif->data->reg_ofs_end_msb,
+				 phys_buf_addr_upper_32);
+	}
+
+	/*
+	 * set MSB to 33-bit, for memif address
+	 * only for memif base address, if msb_end_reg exists
+	 */
+	if (memif->data->msb_reg)
+		mtk_regmap_update_bits(afe->regmap, memif->data->msb_reg,
+				       1, msb_at_bit33, memif->data->msb_shift);
+
+	/* set MSB to 33-bit, for memif end address */
+	if (memif->data->msb_end_reg)
+		mtk_regmap_update_bits(afe->regmap, memif->data->msb_end_reg,
+				       1, msb_at_bit33,
+				       memif->data->msb_end_shift);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_memif_set_addr);
+
+int mtk_memif_set_channel(struct mtk_base_afe *afe,
+			  int id, unsigned int channel)
+{
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+	unsigned int mono;
+
+	if (memif->data->mono_shift < 0)
+		return 0;
+
+	if (memif->data->quad_ch_mask) {
+		unsigned int quad_ch = (channel == 4) ? 1 : 0;
+
+		mtk_regmap_update_bits(afe->regmap, memif->data->quad_ch_reg,
+				       memif->data->quad_ch_mask,
+				       quad_ch, memif->data->quad_ch_shift);
+	}
+
+	if (memif->data->mono_invert)
+		mono = (channel == 1) ? 0 : 1;
+	else
+		mono = (channel == 1) ? 1 : 0;
+
+	/* for specific configuration of memif mono mode */
+	if (memif->data->int_odd_flag_reg)
+		mtk_regmap_update_bits(afe->regmap,
+				       memif->data->int_odd_flag_reg,
+				       1, mono,
+				       memif->data->int_odd_flag_shift);
+
+	return mtk_regmap_update_bits(afe->regmap, memif->data->mono_reg,
+				      1, mono, memif->data->mono_shift);
+}
+EXPORT_SYMBOL_GPL(mtk_memif_set_channel);
+
+static int mtk_memif_set_rate_fs(struct mtk_base_afe *afe,
+				 int id, int fs)
+{
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+
+	if (memif->data->fs_shift >= 0)
+		mtk_regmap_update_bits(afe->regmap, memif->data->fs_reg,
+				       memif->data->fs_maskbit,
+				       fs, memif->data->fs_shift);
+
+	return 0;
+}
+
+int mtk_memif_set_rate_substream(struct snd_pcm_substream *substream,
+				 int id, 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);
+
+	int fs = 0;
+
+	if (!afe->memif_fs) {
+		dev_err(afe->dev, "%s(), error, afe->memif_fs == NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	fs = afe->memif_fs(substream, rate);
+
+	if (fs < 0)
+		return -EINVAL;
+
+	return mtk_memif_set_rate_fs(afe, id, fs);
+}
+EXPORT_SYMBOL_GPL(mtk_memif_set_rate_substream);
+
+int mtk_memif_set_format(struct mtk_base_afe *afe,
+			 int id, snd_pcm_format_t format)
+{
+	struct mtk_base_afe_memif *memif = &afe->memif[id];
+	int hd_audio = 0;
+	int hd_align = 0;
+
+	/* set hd mode */
+	switch (format) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+	case SNDRV_PCM_FORMAT_U16_LE:
+		hd_audio = 0;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+	case SNDRV_PCM_FORMAT_U32_LE:
+		if (afe->memif_32bit_supported) {
+			hd_audio = 2;
+			hd_align = 0;
+		} else {
+			hd_audio = 1;
+			hd_align = 1;
+		}
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+	case SNDRV_PCM_FORMAT_U24_LE:
+		hd_audio = 1;
+		break;
+	default:
+		dev_err(afe->dev, "%s() error: unsupported format %d\n",
+			__func__, format);
+		break;
+	}
+
+	mtk_regmap_update_bits(afe->regmap, memif->data->hd_reg,
+			       0x3, hd_audio, memif->data->hd_shift);
+
+	mtk_regmap_update_bits(afe->regmap, memif->data->hd_align_reg,
+			       0x1, hd_align, memif->data->hd_align_mshift);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_memif_set_format);
+
+int mtk_memif_set_pbuf_size(struct mtk_base_afe *afe,
+			    int id, int pbuf_size)
+{
+	const struct mtk_base_memif_data *memif_data = afe->memif[id].data;
+
+	if (memif_data->pbuf_mask == 0 || memif_data->minlen_mask == 0)
+		return 0;
+
+	mtk_regmap_update_bits(afe->regmap, memif_data->pbuf_reg,
+			       memif_data->pbuf_mask,
+			       pbuf_size, memif_data->pbuf_shift);
+
+	mtk_regmap_update_bits(afe->regmap, memif_data->minlen_reg,
+			       memif_data->minlen_mask,
+			       pbuf_size, memif_data->minlen_shift);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_memif_set_pbuf_size);
+
+MODULE_DESCRIPTION("Mediatek simple fe dai operator");
+MODULE_AUTHOR("Garlic Tseng <garlic.tseng@mediatek.com>");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/sound/soc/mediatek/common/mtk-afe-fe-dai.h

@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mtk-afe-fe-dais.h  --  Mediatek afe fe dai operator definition
+ *
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Garlic Tseng <garlic.tseng@mediatek.com>
+ */
+
+#ifndef _MTK_AFE_FE_DAI_H_
+#define _MTK_AFE_FE_DAI_H_
+
+struct snd_soc_dai_ops;
+struct mtk_base_afe;
+struct mtk_base_afe_memif;
+
+int mtk_afe_fe_startup(struct snd_pcm_substream *substream,
+		       struct snd_soc_dai *dai);
+void mtk_afe_fe_shutdown(struct snd_pcm_substream *substream,
+			 struct snd_soc_dai *dai);
+int mtk_afe_fe_hw_params(struct snd_pcm_substream *substream,
+			 struct snd_pcm_hw_params *params,
+			 struct snd_soc_dai *dai);
+int mtk_afe_fe_hw_free(struct snd_pcm_substream *substream,
+		       struct snd_soc_dai *dai);
+int mtk_afe_fe_prepare(struct snd_pcm_substream *substream,
+		       struct snd_soc_dai *dai);
+int mtk_afe_fe_trigger(struct snd_pcm_substream *substream, int cmd,
+		       struct snd_soc_dai *dai);
+
+extern const struct snd_soc_dai_ops mtk_afe_fe_ops;
+
+int mtk_dynamic_irq_acquire(struct mtk_base_afe *afe);
+int mtk_dynamic_irq_release(struct mtk_base_afe *afe, int irq_id);
+int mtk_afe_suspend(struct snd_soc_component *component);
+int mtk_afe_resume(struct snd_soc_component *component);
+
+int mtk_memif_set_enable(struct mtk_base_afe *afe, int id);
+int mtk_memif_set_disable(struct mtk_base_afe *afe, int id);
+int mtk_memif_set_addr(struct mtk_base_afe *afe, int id,
+		       unsigned char *dma_area,
+		       dma_addr_t dma_addr,
+		       size_t dma_bytes);
+int mtk_memif_set_channel(struct mtk_base_afe *afe,
+			  int id, unsigned int channel);
+int mtk_memif_set_rate_substream(struct snd_pcm_substream *substream,
+				 int id, unsigned int rate);
+int mtk_memif_set_format(struct mtk_base_afe *afe,
+			 int id, snd_pcm_format_t format);
+int mtk_memif_set_pbuf_size(struct mtk_base_afe *afe,
+			    int id, int pbuf_size);
+#endif

linux-7.2.3/sound/soc/mediatek/common/mtk-afe-platform-driver.c

@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * mtk-afe-platform-driver.c  --  Mediatek afe platform driver
+ *
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Garlic Tseng <garlic.tseng@mediatek.com>
+ */
+
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <sound/soc.h>
+
+#include "mtk-afe-platform-driver.h"
+#include "mtk-base-afe.h"
+
+int mtk_afe_combine_sub_dai(struct mtk_base_afe *afe)
+{
+	struct mtk_base_afe_dai *dai;
+	size_t num_dai_drivers = 0, dai_idx = 0;
+
+	/* calcualte total dai driver size */
+	list_for_each_entry(dai, &afe->sub_dais, list) {
+		num_dai_drivers += dai->num_dai_drivers;
+	}
+
+	dev_info(afe->dev, "%s(), num of dai %zd\n", __func__, num_dai_drivers);
+
+	/* combine sub_dais */
+	afe->num_dai_drivers = num_dai_drivers;
+	afe->dai_drivers = devm_kcalloc(afe->dev,
+					num_dai_drivers,
+					sizeof(struct snd_soc_dai_driver),
+					GFP_KERNEL);
+	if (!afe->dai_drivers)
+		return -ENOMEM;
+
+	list_for_each_entry(dai, &afe->sub_dais, list) {
+		/* dai driver */
+		memcpy(&afe->dai_drivers[dai_idx],
+		       dai->dai_drivers,
+		       dai->num_dai_drivers *
+		       sizeof(struct snd_soc_dai_driver));
+		dai_idx += dai->num_dai_drivers;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_combine_sub_dai);
+
+int mtk_afe_add_sub_dai_control(struct snd_soc_component *component)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+	struct mtk_base_afe_dai *dai;
+
+	list_for_each_entry(dai, &afe->sub_dais, list) {
+		if (dai->controls)
+			snd_soc_add_component_controls(component,
+						       dai->controls,
+						       dai->num_controls);
+
+		if (dai->dapm_widgets)
+			snd_soc_dapm_new_controls(dapm,
+						  dai->dapm_widgets,
+						  dai->num_dapm_widgets);
+	}
+	/* add routes after all widgets are added */
+	list_for_each_entry(dai, &afe->sub_dais, list) {
+		if (dai->dapm_routes)
+			snd_soc_dapm_add_routes(dapm,
+						dai->dapm_routes,
+						dai->num_dapm_routes);
+	}
+
+	snd_soc_dapm_new_widgets(component->card);
+
+	return 0;
+
+}
+EXPORT_SYMBOL_GPL(mtk_afe_add_sub_dai_control);
+
+snd_pcm_uframes_t mtk_afe_pcm_pointer(struct snd_soc_component *component,
+				      struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+	struct mtk_base_afe_memif *memif = &afe->memif[snd_soc_rtd_to_cpu(rtd, 0)->id];
+	const struct mtk_base_memif_data *memif_data = memif->data;
+	struct regmap *regmap = afe->regmap;
+	struct device *dev = afe->dev;
+	unsigned int hw_ptr_lower32 = 0, hw_ptr_upper32 = 0;
+	unsigned int hw_base_lower32 = 0, hw_base_upper32 = 0;
+	unsigned long long hw_ptr = 0, hw_base = 0;
+	int ret;
+	unsigned long long pcm_ptr_bytes = 0;
+
+	ret = regmap_read(regmap, memif_data->reg_ofs_cur, &hw_ptr_lower32);
+	if (ret) {
+		dev_err(dev, "%s hw_ptr_lower32 err\n", __func__);
+		return 0;
+	}
+
+	if (memif_data->reg_ofs_cur_msb) {
+		ret = regmap_read(regmap, memif_data->reg_ofs_cur_msb, &hw_ptr_upper32);
+		if (ret) {
+			dev_err(dev, "%s hw_ptr_upper32 err\n", __func__);
+			return 0;
+		}
+	}
+
+	ret = regmap_read(regmap, memif_data->reg_ofs_base, &hw_base_lower32);
+	if (ret) {
+		dev_err(dev, "%s hw_base_lower32 err\n", __func__);
+		return 0;
+	}
+	if (memif_data->reg_ofs_base_msb) {
+		ret = regmap_read(regmap, memif_data->reg_ofs_base_msb, &hw_base_upper32);
+		if (ret) {
+			dev_err(dev, "%s hw_base_upper32 err\n", __func__);
+			return 0;
+		}
+	}
+
+	hw_ptr = ((unsigned long long)hw_ptr_upper32 << 32) | hw_ptr_lower32;
+	hw_base = ((unsigned long long)hw_base_upper32 << 32) | hw_base_lower32;
+
+	if (!hw_ptr || !hw_base) {
+		dev_err(dev, "hw_ptr or hw_base = 0 err\n");
+		return 0;
+	}
+
+	pcm_ptr_bytes = MTK_ALIGN_16BYTES(hw_ptr - hw_base);
+	return bytes_to_frames(substream->runtime, (ssize_t)pcm_ptr_bytes);
+}
+EXPORT_SYMBOL_GPL(mtk_afe_pcm_pointer);
+
+int mtk_afe_pcm_new(struct snd_soc_component *component,
+		    struct snd_soc_pcm_runtime *rtd)
+{
+	size_t size;
+	struct snd_pcm *pcm = rtd->pcm;
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+
+	size = afe->mtk_afe_hardware->buffer_bytes_max;
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, afe->dev,
+				       afe->preallocate_buffers ? size : 0,
+				       size);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_afe_pcm_new);
+
+static int mtk_afe_component_probe(struct snd_soc_component *component)
+{
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+	int ret;
+
+	snd_soc_component_init_regmap(component, afe->regmap);
+
+	/* If the list was never initialized there are no sub-DAIs */
+	if (afe->sub_dais.next && afe->sub_dais.prev) {
+		ret = mtk_afe_add_sub_dai_control(component);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+const struct snd_soc_component_driver mtk_afe_pcm_platform = {
+	.name		= AFE_PCM_NAME,
+	.pointer	= mtk_afe_pcm_pointer,
+	.pcm_new	= mtk_afe_pcm_new,
+	.probe		= mtk_afe_component_probe,
+};
+EXPORT_SYMBOL_GPL(mtk_afe_pcm_platform);
+
+MODULE_DESCRIPTION("Mediatek simple platform driver");
+MODULE_AUTHOR("Garlic Tseng <garlic.tseng@mediatek.com>");
+MODULE_LICENSE("GPL v2");
+

linux-7.2.3/sound/soc/mediatek/common/mtk-afe-platform-driver.h

@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mtk-afe-platform-driver.h  --  Mediatek afe platform driver definition
+ *
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Garlic Tseng <garlic.tseng@mediatek.com>
+ */
+
+#ifndef _MTK_AFE_PLATFORM_DRIVER_H_
+#define _MTK_AFE_PLATFORM_DRIVER_H_
+
+#define AFE_PCM_NAME "mtk-afe-pcm"
+extern const struct snd_soc_component_driver mtk_afe_pcm_platform;
+
+#define MTK_ALIGN_16BYTES(x) ((x) & GENMASK_ULL(39, 4))
+
+struct mtk_base_afe;
+struct snd_pcm;
+struct snd_soc_component;
+struct snd_soc_pcm_runtime;
+
+snd_pcm_uframes_t mtk_afe_pcm_pointer(struct snd_soc_component *component,
+				      struct snd_pcm_substream *substream);
+int mtk_afe_pcm_new(struct snd_soc_component *component,
+		    struct snd_soc_pcm_runtime *rtd);
+
+int mtk_afe_combine_sub_dai(struct mtk_base_afe *afe);
+int mtk_afe_add_sub_dai_control(struct snd_soc_component *component);
+#endif
+

linux-7.2.3/sound/soc/mediatek/common/mtk-base-afe.h

@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mtk-base-afe.h  --  Mediatek base afe structure
+ *
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Garlic Tseng <garlic.tseng@mediatek.com>
+ */
+
+#ifndef _MTK_BASE_AFE_H_
+#define _MTK_BASE_AFE_H_
+
+#include <linux/soc/mediatek/mtk_sip_svc.h>
+
+#define MTK_STREAM_NUM (SNDRV_PCM_STREAM_LAST + 1)
+#define MTK_SIP_AUDIO_CONTROL MTK_SIP_SMC_CMD(0x517)
+
+/* SMC CALL Operations */
+enum mtk_audio_smc_call_op {
+	MTK_AUDIO_SMC_OP_INIT = 0,
+	MTK_AUDIO_SMC_OP_DRAM_REQUEST,
+	MTK_AUDIO_SMC_OP_DRAM_RELEASE,
+	MTK_AUDIO_SMC_OP_SRAM_REQUEST,
+	MTK_AUDIO_SMC_OP_SRAM_RELEASE,
+	MTK_AUDIO_SMC_OP_ADSP_REQUEST,
+	MTK_AUDIO_SMC_OP_ADSP_RELEASE,
+	MTK_AUDIO_SMC_OP_DOMAIN_SIDEBANDS,
+	MTK_AUDIO_SMC_OP_BTCVSD_WRITE,
+	MTK_AUDIO_SMC_OP_BTCVSD_UPDATE_CTRL_CLEAR,
+	MTK_AUDIO_SMC_OP_BTCVSD_UPDATE_CTRL_UNDERFLOW,
+	MTK_AUDIO_SMC_OP_NUM
+};
+
+struct mtk_base_memif_data {
+	int id;
+	const char *name;
+	int reg_ofs_base;
+	int reg_ofs_cur;
+	int reg_ofs_end;
+	int reg_ofs_base_msb;
+	int reg_ofs_cur_msb;
+	int reg_ofs_end_msb;
+	int fs_reg;
+	int fs_shift;
+	int fs_maskbit;
+	int mono_reg;
+	int mono_shift;
+	int mono_invert;
+	int quad_ch_reg;
+	int quad_ch_mask;
+	int quad_ch_shift;
+	int int_odd_flag_reg;
+	int int_odd_flag_shift;
+	int enable_reg;
+	int enable_shift;
+	int hd_reg;
+	int hd_shift;
+	int hd_align_reg;
+	int hd_align_mshift;
+	int msb_reg;
+	int msb_shift;
+	int msb_end_reg;
+	int msb_end_shift;
+	int agent_disable_reg;
+	int agent_disable_shift;
+	int ch_num_reg;
+	int ch_num_shift;
+	int ch_num_maskbit;
+	/* playback memif only */
+	int pbuf_reg;
+	int pbuf_mask;
+	int pbuf_shift;
+	int minlen_reg;
+	int minlen_mask;
+	int minlen_shift;
+};
+
+struct mtk_base_irq_data {
+	int id;
+	int irq_cnt_reg;
+	int irq_cnt_shift;
+	int irq_cnt_maskbit;
+	int irq_fs_reg;
+	int irq_fs_shift;
+	int irq_fs_maskbit;
+	int irq_en_reg;
+	int irq_en_shift;
+	int irq_clr_reg;
+	int irq_clr_shift;
+	int irq_status_shift;
+};
+
+struct device;
+struct list_head;
+struct mtk_base_afe_memif;
+struct mtk_base_afe_irq;
+struct mtk_base_afe_dai;
+struct regmap;
+struct snd_pcm_substream;
+struct snd_soc_dai;
+
+struct mtk_base_afe {
+	void __iomem *base_addr;
+	struct device *dev;
+	struct regmap *regmap;
+	struct mutex irq_alloc_lock; /* dynamic alloc irq lock */
+
+	unsigned int const *reg_back_up_list;
+	unsigned int *reg_back_up;
+	unsigned int reg_back_up_list_num;
+
+	int (*runtime_suspend)(struct device *dev);
+	int (*runtime_resume)(struct device *dev);
+	bool suspended;
+
+	struct mtk_base_afe_memif *memif;
+	int memif_size;
+	struct mtk_base_afe_irq *irqs;
+	int irqs_size;
+	int memif_32bit_supported;
+	bool preallocate_buffers;
+
+	struct list_head sub_dais;
+	struct snd_soc_dai_driver *dai_drivers;
+	unsigned int num_dai_drivers;
+
+	const struct snd_pcm_hardware *mtk_afe_hardware;
+	int (*memif_fs)(struct snd_pcm_substream *substream,
+			unsigned int rate);
+	int (*irq_fs)(struct snd_pcm_substream *substream,
+		      unsigned int rate);
+	int (*get_dai_fs)(struct mtk_base_afe *afe,
+			  int dai_id, unsigned int rate);
+	int (*get_memif_pbuf_size)(struct snd_pcm_substream *substream);
+
+	int (*request_dram_resource)(struct device *dev);
+	int (*release_dram_resource)(struct device *dev);
+
+	void *platform_priv;
+};
+
+struct mtk_base_afe_memif {
+	unsigned int phys_buf_addr;
+	int buffer_size;
+	struct snd_pcm_substream *substream;
+	const struct mtk_base_memif_data *data;
+	int irq_usage;
+	int const_irq;
+	unsigned char *dma_area;
+	dma_addr_t dma_addr;
+	size_t dma_bytes;
+};
+
+struct mtk_base_afe_irq {
+	const struct mtk_base_irq_data *irq_data;
+	int irq_occupyed;
+};
+
+struct mtk_base_afe_dai {
+	struct snd_soc_dai_driver *dai_drivers;
+	unsigned int num_dai_drivers;
+
+	const struct snd_kcontrol_new *controls;
+	unsigned int num_controls;
+	const struct snd_soc_dapm_widget *dapm_widgets;
+	unsigned int num_dapm_widgets;
+	const struct snd_soc_dapm_route *dapm_routes;
+	unsigned int num_dapm_routes;
+
+	struct list_head list;
+};
+
+#endif
+

linux-7.2.3/sound/soc/mediatek/common/mtk-dai-adda-common.c

@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek ALSA SoC Audio DAI ADDA Common
+ *
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2024 Collabora Ltd.
+ *         AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/dev_printk.h>
+
+#include "mtk-base-afe.h"
+#include "mtk-dai-adda-common.h"
+
+unsigned int mtk_adda_dl_rate_transform(struct mtk_base_afe *afe, u32 rate)
+{
+	switch (rate) {
+	case 8000:
+		return MTK_AFE_ADDA_DL_RATE_8K;
+	case 11025:
+		return MTK_AFE_ADDA_DL_RATE_11K;
+	case 12000:
+		return MTK_AFE_ADDA_DL_RATE_12K;
+	case 16000:
+		return MTK_AFE_ADDA_DL_RATE_16K;
+	case 22050:
+		return MTK_AFE_ADDA_DL_RATE_22K;
+	case 24000:
+		return MTK_AFE_ADDA_DL_RATE_24K;
+	case 32000:
+		return MTK_AFE_ADDA_DL_RATE_32K;
+	case 44100:
+		return MTK_AFE_ADDA_DL_RATE_44K;
+	case 48000:
+		return MTK_AFE_ADDA_DL_RATE_48K;
+	case 96000:
+		return MTK_AFE_ADDA_DL_RATE_96K;
+	case 192000:
+		return MTK_AFE_ADDA_DL_RATE_192K;
+	default:
+		dev_info(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
+			 __func__, rate);
+		return MTK_AFE_ADDA_DL_RATE_48K;
+	}
+}
+EXPORT_SYMBOL_GPL(mtk_adda_dl_rate_transform);
+
+unsigned int mtk_adda_ul_rate_transform(struct mtk_base_afe *afe, u32 rate)
+{
+	switch (rate) {
+	case 8000:
+		return MTK_AFE_ADDA_UL_RATE_8K;
+	case 16000:
+		return MTK_AFE_ADDA_UL_RATE_16K;
+	case 32000:
+		return MTK_AFE_ADDA_UL_RATE_32K;
+	case 48000:
+		return MTK_AFE_ADDA_UL_RATE_48K;
+	case 96000:
+		return MTK_AFE_ADDA_UL_RATE_96K;
+	case 192000:
+		return MTK_AFE_ADDA_UL_RATE_192K;
+	default:
+		dev_info(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
+			 __func__, rate);
+		return MTK_AFE_ADDA_UL_RATE_48K;
+	}
+}
+EXPORT_SYMBOL_GPL(mtk_adda_ul_rate_transform);

linux-7.2.3/sound/soc/mediatek/common/mtk-dai-adda-common.h

@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2024 Collabora Ltd.
+ *         AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ */
+
+#ifndef _MTK_DAI_ADDA_COMMON_H_
+#define _MTK_DAI_ADDA_COMMON_H_
+
+struct mtk_base_afe;
+
+enum adda_input_mode_rate {
+	MTK_AFE_ADDA_DL_RATE_8K = 0,
+	MTK_AFE_ADDA_DL_RATE_11K = 1,
+	MTK_AFE_ADDA_DL_RATE_12K = 2,
+	MTK_AFE_ADDA_DL_RATE_16K = 3,
+	MTK_AFE_ADDA_DL_RATE_22K = 4,
+	MTK_AFE_ADDA_DL_RATE_24K = 5,
+	MTK_AFE_ADDA_DL_RATE_32K = 6,
+	MTK_AFE_ADDA_DL_RATE_44K = 7,
+	MTK_AFE_ADDA_DL_RATE_48K = 8,
+	MTK_AFE_ADDA_DL_RATE_96K = 9,
+	MTK_AFE_ADDA_DL_RATE_192K = 10,
+};
+
+enum adda_voice_mode_rate {
+	MTK_AFE_ADDA_UL_RATE_8K = 0,
+	MTK_AFE_ADDA_UL_RATE_16K = 1,
+	MTK_AFE_ADDA_UL_RATE_32K = 2,
+	MTK_AFE_ADDA_UL_RATE_48K = 3,
+	MTK_AFE_ADDA_UL_RATE_96K = 4,
+	MTK_AFE_ADDA_UL_RATE_192K = 5,
+	MTK_AFE_ADDA_UL_RATE_48K_HD = 6,
+};
+
+enum adda_rxif_delay_data {
+	DELAY_DATA_MISO1 = 0,
+	DELAY_DATA_MISO0 = 1,
+	DELAY_DATA_MISO2 = 1,
+};
+
+unsigned int mtk_adda_dl_rate_transform(struct mtk_base_afe *afe, u32 rate);
+unsigned int mtk_adda_ul_rate_transform(struct mtk_base_afe *afe, u32 rate);
+#endif

linux-7.2.3/sound/soc/mediatek/common/mtk-dsp-sof-common.c

@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * mtk-dsp-sof-common.c  --  MediaTek dsp sof common ctrl
+ *
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Chunxu Li <chunxu.li@mediatek.com>
+ */
+
+#include "mtk-dsp-sof-common.h"
+#include "mtk-soc-card.h"
+
+/* fixup the BE DAI link to match any values from topology */
+int mtk_sof_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
+			   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card);
+	const struct mtk_sof_priv *sof_priv = soc_card_data->sof_priv;
+	int i, j, ret = 0;
+
+	for (i = 0; i < sof_priv->num_streams; i++) {
+		struct snd_soc_dai *cpu_dai;
+		struct snd_soc_pcm_runtime *runtime;
+		struct snd_soc_dai_link *sof_dai_link = NULL;
+		const struct sof_conn_stream *conn = &sof_priv->conn_streams[i];
+
+		if (conn->normal_link && strcmp(rtd->dai_link->name, conn->normal_link))
+			continue;
+
+		for_each_card_rtds(card, runtime) {
+			if (strcmp(runtime->dai_link->name, conn->sof_link))
+				continue;
+
+			for_each_rtd_cpu_dais(runtime, j, cpu_dai) {
+				if (snd_soc_dai_stream_active(cpu_dai, conn->stream_dir) > 0) {
+					sof_dai_link = runtime->dai_link;
+					break;
+				}
+			}
+			break;
+		}
+
+		if (sof_dai_link && sof_dai_link->be_hw_params_fixup)
+			ret = sof_dai_link->be_hw_params_fixup(runtime, params);
+
+		break;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mtk_sof_dai_link_fixup);
+
+int mtk_sof_card_probe(struct snd_soc_card *card)
+{
+	int i;
+	struct snd_soc_dai_link *dai_link;
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card);
+
+	/* Set stream_name to help sof bind widgets */
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->no_pcm && !dai_link->stream_name && dai_link->name)
+			dai_link->stream_name = dai_link->name;
+	}
+
+	INIT_LIST_HEAD(&soc_card_data->sof_dai_link_list);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_sof_card_probe);
+
+static struct snd_soc_pcm_runtime *mtk_sof_find_tplg_be(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card);
+	const struct mtk_sof_priv *sof_priv = soc_card_data->sof_priv;
+	struct snd_soc_pcm_runtime *fe;
+	struct snd_soc_pcm_runtime *be;
+	struct snd_soc_dpcm *dpcm;
+	int i, stream;
+
+	for_each_pcm_streams(stream) {
+		fe = NULL;
+		for_each_dpcm_fe(rtd, stream, dpcm) {
+			fe = dpcm->fe;
+			if (fe)
+				break;
+		}
+
+		if (!fe)
+			continue;
+
+		for_each_dpcm_be(fe, stream, dpcm) {
+			be = dpcm->be;
+			if (be == rtd)
+				continue;
+
+			for (i = 0; i < sof_priv->num_streams; i++) {
+				const struct sof_conn_stream *conn = &sof_priv->conn_streams[i];
+
+				if (!strcmp(be->dai_link->name, conn->sof_link))
+					return be;
+			}
+		}
+	}
+
+	return NULL;
+}
+
+/* fixup the BE DAI link to match any values from topology */
+static int mtk_sof_check_tplg_be_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
+						struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card);
+	const struct mtk_sof_priv *sof_priv = soc_card_data->sof_priv;
+	struct snd_soc_pcm_runtime *sof_be;
+	struct mtk_dai_link *dai_link;
+	int ret = 0;
+
+	sof_be = mtk_sof_find_tplg_be(rtd);
+	if (sof_be) {
+		if (sof_priv->sof_dai_link_fixup)
+			ret = sof_priv->sof_dai_link_fixup(rtd, params);
+		else if (sof_be->dai_link->be_hw_params_fixup)
+			ret = sof_be->dai_link->be_hw_params_fixup(sof_be, params);
+	} else {
+		list_for_each_entry(dai_link, &soc_card_data->sof_dai_link_list, list) {
+			if (strcmp(dai_link->name, rtd->dai_link->name) == 0) {
+				if (dai_link->be_hw_params_fixup)
+					ret = dai_link->be_hw_params_fixup(rtd, params);
+
+				break;
+			}
+		}
+	}
+
+	return ret;
+}
+
+int mtk_sof_card_late_probe(struct snd_soc_card *card)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_component *sof_comp = NULL;
+	struct mtk_soc_card_data *soc_card_data =
+		snd_soc_card_get_drvdata(card);
+	const struct mtk_sof_priv *sof_priv = soc_card_data->sof_priv;
+	struct snd_soc_dai_link *dai_link;
+	struct mtk_dai_link *mtk_dai_link;
+	int i;
+
+	/* 1. find sof component */
+	for_each_card_rtds(card, rtd) {
+		sof_comp = snd_soc_rtdcom_lookup(rtd, "sof-audio-component");
+		if (sof_comp)
+			break;
+	}
+
+	if (!sof_comp) {
+		dev_info(card->dev, "probe without sof-audio-component\n");
+		return 0;
+	}
+
+	/* 2. overwrite all BE fixups, and backup the existing fixup */
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->be_hw_params_fixup) {
+			mtk_dai_link = devm_kzalloc(card->dev,
+						    sizeof(*mtk_dai_link),
+						    GFP_KERNEL);
+			if (!mtk_dai_link)
+				return -ENOMEM;
+
+			mtk_dai_link->be_hw_params_fixup = dai_link->be_hw_params_fixup;
+			mtk_dai_link->name = dai_link->name;
+
+			list_add(&mtk_dai_link->list, &soc_card_data->sof_dai_link_list);
+		}
+
+		if (dai_link->no_pcm)
+			dai_link->be_hw_params_fixup = mtk_sof_check_tplg_be_dai_link_fixup;
+	}
+
+	/* 3. add route path and SOF_BE fixup callback */
+	for (i = 0; i < sof_priv->num_streams; i++) {
+		const struct sof_conn_stream *conn = &sof_priv->conn_streams[i];
+		struct snd_soc_pcm_runtime *sof_rtd = NULL;
+
+		for_each_card_rtds(card, rtd) {
+			if (!strcmp(rtd->dai_link->name, conn->sof_link)) {
+				sof_rtd = rtd;
+				break;
+			}
+		}
+		if (sof_rtd) {
+			int j;
+			struct snd_soc_dai *cpu_dai;
+
+			for_each_rtd_cpu_dais(sof_rtd, j, cpu_dai) {
+				struct snd_soc_dapm_route route;
+				struct snd_soc_dapm_path *p = NULL;
+				struct snd_soc_dapm_widget *widget = snd_soc_dai_get_widget(cpu_dai, conn->stream_dir);
+
+				memset(&route, 0, sizeof(route));
+				if (conn->stream_dir == SNDRV_PCM_STREAM_CAPTURE && widget) {
+					snd_soc_dapm_widget_for_each_sink_path(widget, p) {
+						route.source = conn->sof_dma;
+						route.sink = p->sink->name;
+						snd_soc_dapm_add_routes(dapm, &route, 1);
+					}
+				} else if (conn->stream_dir == SNDRV_PCM_STREAM_PLAYBACK && widget) {
+					snd_soc_dapm_widget_for_each_source_path(widget, p) {
+						route.source = p->source->name;
+						route.sink = conn->sof_dma;
+						snd_soc_dapm_add_routes(dapm, &route, 1);
+					}
+				} else {
+					dev_err(cpu_dai->dev, "stream dir and widget not pair\n");
+				}
+			}
+
+			/* overwrite SOF BE fixup */
+			sof_rtd->dai_link->be_hw_params_fixup =
+				sof_comp->driver->be_hw_params_fixup;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_sof_card_late_probe);
+
+int mtk_sof_dailink_parse_of(struct device *dev, struct snd_soc_card *card,
+			     const char *propname)
+{
+	struct device_node *np = dev->of_node;
+	struct snd_soc_dai_link *parsed_dai_link;
+	const char *dai_name = NULL;
+	int i, j, ret, num_links, parsed_num_links = 0;
+
+	num_links = of_property_count_strings(np, "mediatek,dai-link");
+	if (num_links < 0 || num_links > card->num_links) {
+		dev_dbg(dev, "number of dai-link is invalid\n");
+		return -EINVAL;
+	}
+
+	parsed_dai_link = devm_kcalloc(dev, num_links, sizeof(*parsed_dai_link), GFP_KERNEL);
+	if (!parsed_dai_link)
+		return -ENOMEM;
+
+	for (i = 0; i < num_links; i++) {
+		ret = of_property_read_string_index(np, propname, i, &dai_name);
+		if (ret) {
+			dev_dbg(dev, "ASoC: Property '%s' index %d could not be read: %d\n",
+				propname, i, ret);
+			return ret;
+		}
+		dev_dbg(dev, "ASoC: Property get dai_name:%s\n", dai_name);
+		for (j = 0; j < card->num_links; j++) {
+			if (!strcmp(dai_name, card->dai_link[j].name)) {
+				memcpy(&parsed_dai_link[parsed_num_links++], &card->dai_link[j],
+				       sizeof(struct snd_soc_dai_link));
+				break;
+			}
+		}
+	}
+
+	if (parsed_num_links != num_links)
+		return -EINVAL;
+
+	card->dai_link = parsed_dai_link;
+	card->num_links = parsed_num_links;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_sof_dailink_parse_of);

linux-7.2.3/sound/soc/mediatek/common/mtk-dsp-sof-common.h

@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mtk-dsp-sof-common.h  --  MediaTek dsp sof common definition
+ *
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Chunxu Li <chunxu.li@mediatek.com>
+ */
+
+#ifndef _MTK_DSP_SOF_COMMON_H_
+#define _MTK_DSP_SOF_COMMON_H_
+
+#include <sound/soc.h>
+
+struct sof_conn_stream {
+	const char *normal_link;
+	const char *sof_link;
+	const char *sof_dma;
+	int stream_dir;
+};
+
+struct mtk_dai_link {
+	const char *name;
+	int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
+				  struct snd_pcm_hw_params *params);
+	struct list_head list;
+};
+
+struct mtk_sof_priv {
+	const struct sof_conn_stream *conn_streams;
+	int num_streams;
+	int (*sof_dai_link_fixup)(struct snd_soc_pcm_runtime *rtd,
+				  struct snd_pcm_hw_params *params);
+};
+
+int mtk_sof_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
+			   struct snd_pcm_hw_params *params);
+int mtk_sof_card_probe(struct snd_soc_card *card);
+int mtk_sof_card_late_probe(struct snd_soc_card *card);
+int mtk_sof_dailink_parse_of(struct device *dev, struct snd_soc_card *card,
+			     const char *propname);
+
+#endif

linux-7.2.3/sound/soc/mediatek/common/mtk-soc-card.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mtk-soc-card.h  --  MediaTek soc card data definition
+ *
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Chunxu Li <chunxu.li@mediatek.com>
+ */
+
+#ifndef _MTK_SOC_CARD_H_
+#define _MTK_SOC_CARD_H_
+
+struct mtk_platform_card_data;
+struct mtk_sof_priv;
+
+struct mtk_soc_card_data {
+	const struct mtk_sof_priv *sof_priv;
+	struct list_head sof_dai_link_list;
+	struct mtk_platform_card_data *card_data;
+	struct snd_soc_component *accdet;
+	void *mach_priv;
+};
+
+#endif

linux-7.2.3/sound/soc/mediatek/common/mtk-soundcard-driver.c

@@ -0,0 +1,343 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * mtk-soundcard-driver.c  --  MediaTek soundcard driver common
+ *
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Trevor Wu <trevor.wu@mediatek.com>
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <sound/soc.h>
+
+#include "mtk-dsp-sof-common.h"
+#include "mtk-soc-card.h"
+#include "mtk-soundcard-driver.h"
+
+static int set_card_codec_info(struct device *dev,
+			       struct device_node *sub_node,
+			       struct snd_soc_dai_link *dai_link)
+{
+	struct device_node *codec_node;
+	int ret;
+
+	codec_node = of_get_child_by_name(sub_node, "codec");
+	if (!codec_node) {
+		dev_dbg(dev, "%s no specified codec: setting dummy.\n", dai_link->name);
+
+		dai_link->codecs = &snd_soc_dummy_dlc;
+		dai_link->num_codecs = 1;
+		dai_link->dynamic = 1;
+		return 0;
+	}
+
+	/* set card codec info */
+	ret = snd_soc_of_get_dai_link_codecs(dev, codec_node, dai_link);
+
+	of_node_put(codec_node);
+
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "%s: codec dai not found\n",
+				     dai_link->name);
+
+	return 0;
+}
+
+static int set_dailink_daifmt(struct device_node *sub_node,
+			      struct snd_soc_dai_link *dai_link)
+{
+	unsigned int daifmt;
+	const char *str;
+	int ret;
+	struct {
+		char *name;
+		unsigned int val;
+	} of_clk_table[] = {
+		{ "cpu",	SND_SOC_DAIFMT_CBC_CFC },
+		{ "codec",	SND_SOC_DAIFMT_CBP_CFP },
+	};
+
+	daifmt = snd_soc_daifmt_parse_format(sub_node, NULL);
+	if (daifmt) {
+		dai_link->dai_fmt &= SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK;
+		dai_link->dai_fmt |= daifmt;
+	}
+
+	/*
+	 * check "mediatek,clk-provider = xxx"
+	 * SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK area
+	 */
+	ret = of_property_read_string(sub_node, "mediatek,clk-provider", &str);
+	if (ret == 0) {
+		int i;
+
+		for (i = 0; i < ARRAY_SIZE(of_clk_table); i++) {
+			if (strcmp(str, of_clk_table[i].name) == 0) {
+				dai_link->dai_fmt &= ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK;
+				dai_link->dai_fmt |= of_clk_table[i].val;
+				break;
+			}
+		}
+	}
+
+	return 0;
+}
+
+int parse_dai_link_info(struct snd_soc_card *card)
+{
+	struct device *dev = card->dev;
+	struct snd_soc_dai_link *dai_link;
+	const char *dai_link_name;
+	int ret, i;
+
+	/* Loop over all the dai link sub nodes */
+	for_each_available_child_of_node_scoped(dev->of_node, sub_node) {
+		if (of_property_read_string(sub_node, "link-name",
+					    &dai_link_name))
+			return -EINVAL;
+
+		for_each_card_prelinks(card, i, dai_link) {
+			if (!strcmp(dai_link_name, dai_link->name))
+				break;
+		}
+
+		if (i >= card->num_links)
+			return -EINVAL;
+
+		ret = set_card_codec_info(dev, sub_node, dai_link);
+		if (ret < 0)
+			return ret;
+
+		ret = set_dailink_daifmt(sub_node, dai_link);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(parse_dai_link_info);
+
+void clean_card_reference(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *dai_link;
+	int i;
+
+	/* release codec reference gotten by set_card_codec_info */
+	for_each_card_prelinks(card, i, dai_link)
+		snd_soc_of_put_dai_link_codecs(dai_link);
+}
+EXPORT_SYMBOL_GPL(clean_card_reference);
+
+int mtk_soundcard_startup(struct snd_pcm_substream *substream,
+			  enum mtk_pcm_constraint_type ctype)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct mtk_soc_card_data *soc_card = snd_soc_card_get_drvdata(rtd->card);
+	const struct mtk_pcm_constraints_data *mpc = &soc_card->card_data->pcm_constraints[ctype];
+	int ret;
+
+	if (unlikely(!mpc))
+		return -EINVAL;
+
+	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+					 SNDRV_PCM_HW_PARAM_RATE,
+					 mpc->rates);
+	if (ret < 0) {
+		dev_err(rtd->dev, "hw_constraint_list rate failed\n");
+		return ret;
+	}
+
+	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+					 SNDRV_PCM_HW_PARAM_CHANNELS,
+					 mpc->channels);
+	if (ret < 0) {
+		dev_err(rtd->dev, "hw_constraint_list channel failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_soundcard_startup);
+
+static int mtk_soundcard_playback_startup(struct snd_pcm_substream *substream)
+{
+	return mtk_soundcard_startup(substream, MTK_CONSTRAINT_PLAYBACK);
+}
+
+const struct snd_soc_ops mtk_soundcard_common_playback_ops = {
+	.startup = mtk_soundcard_playback_startup,
+};
+EXPORT_SYMBOL_GPL(mtk_soundcard_common_playback_ops);
+
+static int mtk_soundcard_capture_startup(struct snd_pcm_substream *substream)
+{
+	return mtk_soundcard_startup(substream, MTK_CONSTRAINT_CAPTURE);
+}
+
+const struct snd_soc_ops mtk_soundcard_common_capture_ops = {
+	.startup = mtk_soundcard_capture_startup,
+};
+EXPORT_SYMBOL_GPL(mtk_soundcard_common_capture_ops);
+
+int mtk_soundcard_common_probe(struct platform_device *pdev)
+{
+	struct device_node *platform_node, *adsp_node, *accdet_node;
+	struct snd_soc_component *accdet_comp;
+	struct platform_device *accdet_pdev;
+	const struct mtk_soundcard_pdata *pdata;
+	struct mtk_soc_card_data *soc_card_data;
+	struct snd_soc_dai_link *orig_dai_link, *dai_link;
+	struct snd_soc_jack *jacks;
+	struct snd_soc_card *card;
+	int i, orig_num_links, ret;
+	bool needs_legacy_probe;
+
+	pdata = device_get_match_data(&pdev->dev);
+	if (!pdata)
+		return -EINVAL;
+
+	card = pdata->card_data->card;
+	card->dev = &pdev->dev;
+	orig_dai_link = card->dai_link;
+	orig_num_links = card->num_links;
+
+	ret = snd_soc_of_parse_card_name(card, "model");
+	if (ret)
+		return ret;
+
+	if (!card->name) {
+		if (!pdata->card_name)
+			return -EINVAL;
+
+		card->name = pdata->card_name;
+	}
+
+	needs_legacy_probe = !of_property_present(pdev->dev.of_node, "audio-routing");
+	if (needs_legacy_probe) {
+		/*
+		 * If we have no .soc_probe() callback there's no way of using
+		 * any legacy probe mechanism, as that cannot not be generic.
+		 */
+		if (!pdata->soc_probe)
+			return -EINVAL;
+
+		dev_info_once(&pdev->dev, "audio-routing not found: using legacy probe\n");
+	} else {
+		ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
+		if (ret)
+			return ret;
+	}
+
+	soc_card_data = devm_kzalloc(&pdev->dev, sizeof(*soc_card_data), GFP_KERNEL);
+	if (!soc_card_data)
+		return -ENOMEM;
+
+	soc_card_data->card_data = pdata->card_data;
+
+	jacks = devm_kcalloc(card->dev, soc_card_data->card_data->num_jacks,
+			     sizeof(*jacks), GFP_KERNEL);
+	if (!jacks)
+		return -ENOMEM;
+
+	soc_card_data->card_data->jacks = jacks;
+
+	accdet_node = of_parse_phandle(pdev->dev.of_node, "mediatek,accdet", 0);
+	if (accdet_node) {
+		accdet_pdev = of_find_device_by_node(accdet_node);
+		if (accdet_pdev) {
+			accdet_comp = snd_soc_lookup_component(&accdet_pdev->dev, NULL);
+			if (accdet_comp)
+				soc_card_data->accdet = accdet_comp;
+			else
+				dev_err(&pdev->dev, "No sound component found from mediatek,accdet property\n");
+
+			put_device(&accdet_pdev->dev);
+		} else {
+			dev_err(&pdev->dev, "No device found from mediatek,accdet property\n");
+		}
+
+		of_node_put(accdet_node);
+	}
+
+	platform_node = of_parse_phandle(pdev->dev.of_node, "mediatek,platform", 0);
+	if (!platform_node)
+		return dev_err_probe(&pdev->dev, -EINVAL,
+				     "Property mediatek,platform missing or invalid\n");
+
+	/* Check if this SoC has an Audio DSP */
+	if (pdata->sof_priv)
+		adsp_node = of_parse_phandle(pdev->dev.of_node, "mediatek,adsp", 0);
+	else
+		adsp_node = NULL;
+
+	if (adsp_node) {
+		if (of_property_present(pdev->dev.of_node, "mediatek,dai-link")) {
+			ret = mtk_sof_dailink_parse_of(&pdev->dev, card,
+						       "mediatek,dai-link");
+			if (ret) {
+				of_node_put(adsp_node);
+				of_node_put(platform_node);
+				return dev_err_probe(&pdev->dev, ret,
+						     "Cannot parse mediatek,dai-link\n");
+			}
+		}
+
+		soc_card_data->sof_priv = pdata->sof_priv;
+		card->probe = mtk_sof_card_probe;
+		card->late_probe = mtk_sof_card_late_probe;
+
+		snd_soc_card_set_topology_name(card, "sof");
+	}
+
+	/*
+	 * Regardless of whether the ADSP is wanted and/or present in a machine
+	 * specific device tree or not and regardless of whether any AFE_SOF
+	 * link is present, we have to make sure that the platforms->of_node
+	 * is not NULL, and set to either ADSP (adsp_node) or AFE (platform_node).
+	 */
+	for_each_card_prelinks(card, i, dai_link) {
+		if (adsp_node && !strncmp(dai_link->name, "AFE_SOF", strlen("AFE_SOF")))
+			dai_link->platforms->of_node = adsp_node;
+		else if (!dai_link->platforms->name && !dai_link->platforms->of_node)
+			dai_link->platforms->of_node = platform_node;
+	}
+
+	if (!needs_legacy_probe) {
+		ret = parse_dai_link_info(card);
+		if (ret)
+			goto err_restore_dais;
+	} else {
+		if (adsp_node)
+			of_node_put(adsp_node);
+		of_node_put(platform_node);
+	}
+
+	if (pdata->soc_probe) {
+		ret = pdata->soc_probe(soc_card_data, needs_legacy_probe);
+		if (ret) {
+			if (!needs_legacy_probe)
+				clean_card_reference(card);
+			goto err_restore_dais;
+		}
+	}
+	snd_soc_card_set_drvdata(card, soc_card_data);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+
+	if (!needs_legacy_probe)
+		clean_card_reference(card);
+
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "Cannot register card\n");
+		goto err_restore_dais;
+	}
+
+	return 0;
+
+err_restore_dais:
+	card->dai_link = orig_dai_link;
+	card->num_links = orig_num_links;
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mtk_soundcard_common_probe);

linux-7.2.3/sound/soc/mediatek/common/mtk-soundcard-driver.h

@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mtk-soundcard-driver.h  --  MediaTek soundcard driver common definition
+ *
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Trevor Wu <trevor.wu@mediatek.com>
+ */
+
+#ifndef _MTK_SOUNDCARD_DRIVER_H_
+#define _MTK_SOUNDCARD_DRIVER_H_
+
+struct mtk_sof_priv;
+struct mtk_soc_card_data;
+struct snd_pcm_hw_constraint_list;
+
+enum mtk_pcm_constraint_type {
+	MTK_CONSTRAINT_PLAYBACK,
+	MTK_CONSTRAINT_CAPTURE,
+	MTK_CONSTRAINT_HDMIDP,
+	MTK_CONSTRAINT_MAX
+};
+
+struct mtk_pcm_constraints_data {
+	const struct snd_pcm_hw_constraint_list *channels;
+	const struct snd_pcm_hw_constraint_list *rates;
+};
+
+struct mtk_platform_card_data {
+	struct snd_soc_card *card;
+	struct snd_soc_jack *jacks;
+	const struct mtk_pcm_constraints_data *pcm_constraints;
+	u8 num_jacks;
+	u8 num_pcm_constraints;
+	u8 flags;
+};
+
+struct mtk_soundcard_pdata {
+	const char *card_name;
+	struct mtk_platform_card_data *card_data;
+	const struct mtk_sof_priv *sof_priv;
+
+	int (*soc_probe)(struct mtk_soc_card_data *card_data, bool legacy);
+};
+
+/* Common playback/capture card startup ops */
+extern const struct snd_soc_ops mtk_soundcard_common_playback_ops;
+extern const struct snd_soc_ops mtk_soundcard_common_capture_ops;
+
+/* Exported for custom/extended soundcard startup ops */
+int mtk_soundcard_startup(struct snd_pcm_substream *substream,
+			  enum mtk_pcm_constraint_type ctype);
+
+int parse_dai_link_info(struct snd_soc_card *card);
+void clean_card_reference(struct snd_soc_card *card);
+int mtk_soundcard_common_probe(struct platform_device *pdev);
+#endif