path: root/sound/soc/intel/boards/sof_sdw.c

// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2020 Intel Corporation

/*
 *  sof_sdw - ASOC Machine driver for Intel SoundWire platforms
 */

#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/module.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "sof_sdw_common.h"

unsigned long sof_sdw_quirk = SOF_RT711_JD_SRC_JD1;

#define INC_ID(BE, CPU, LINK)	do { (BE)++; (CPU)++; (LINK)++; } while (0)

static int sof_sdw_quirk_cb(const struct dmi_system_id *id)
{
	sof_sdw_quirk = (unsigned long)id->driver_data;
	return 1;
}

static const struct dmi_system_id sof_sdw_quirk_table[] = {
	{
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "09C6")
		},
		.driver_data = (void *)(SOF_RT711_JD_SRC_JD2 |
					SOF_RT715_DAI_ID_FIX),
	},
	{
		/* early version of SKU 09C6 */
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0983")
		},
		.driver_data = (void *)(SOF_RT711_JD_SRC_JD2 |
					SOF_RT715_DAI_ID_FIX),
	},
	{
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "098F"),
		},
		.driver_data = (void *)(SOF_RT711_JD_SRC_JD2 |
					SOF_RT715_DAI_ID_FIX |
					SOF_SDW_FOUR_SPK),
	},
		{
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0990"),
		},
		.driver_data = (void *)(SOF_RT711_JD_SRC_JD2 |
					SOF_RT715_DAI_ID_FIX |
					SOF_SDW_FOUR_SPK),
	},
	{
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME,
				  "Tiger Lake Client Platform"),
		},
		.driver_data = (void *)(SOF_RT711_JD_SRC_JD1 |
				SOF_SDW_TGL_HDMI | SOF_SDW_PCH_DMIC |
				SOF_SSP_PORT(SOF_I2S_SSP2)),
	},
	{
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Ice Lake Client"),
		},
		.driver_data = (void *)SOF_SDW_PCH_DMIC,
	},
	{
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "CometLake Client"),
		},
		.driver_data = (void *)SOF_SDW_PCH_DMIC,
	},
	{
		.callback = sof_sdw_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Google"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Volteer"),
		},
		.driver_data = (void *)(SOF_SDW_TGL_HDMI | SOF_SDW_PCH_DMIC),
	},

	{}
};

static struct snd_soc_codec_conf codec_conf[] = {
	{
		.dlc = COMP_CODEC_CONF("sdw:0:25d:711:0"),
		.name_prefix = "rt711",
	},
	/* rt1308 w/ I2S connection */
	{
		.dlc = COMP_CODEC_CONF("i2c-10EC1308:00"),
		.name_prefix = "rt1308-1",
	},
	/* rt1308 left on link 1 */
	{
		.dlc = COMP_CODEC_CONF("sdw:1:25d:1308:0"),
		.name_prefix = "rt1308-1",
	},
	/* two 1308s on link1 with different unique id */
	{
		.dlc = COMP_CODEC_CONF("sdw:1:25d:1308:0:0"),
		.name_prefix = "rt1308-1",
	},
	{
		.dlc = COMP_CODEC_CONF("sdw:1:25d:1308:0:2"),
		.name_prefix = "rt1308-2",
	},
	/* rt1308 right on link 2 */
	{
		.dlc = COMP_CODEC_CONF("sdw:2:25d:1308:0"),
		.name_prefix = "rt1308-2",
	},
	{
		.dlc = COMP_CODEC_CONF("sdw:3:25d:715:0"),
		.name_prefix = "rt715",
	},
	{
		.dlc = COMP_CODEC_CONF("sdw:0:25d:5682:0"),
		.name_prefix = "rt5682",
	},
};

static struct snd_soc_dai_link_component dmic_component[] = {
	{
		.name = "dmic-codec",
		.dai_name = "dmic-hifi",
	}
};

static struct snd_soc_dai_link_component platform_component[] = {
	{
		/* name might be overridden during probe */
		.name = "0000:00:1f.3"
	}
};

/* these wrappers are only needed to avoid typecast compilation errors */
static int sdw_startup(struct snd_pcm_substream *substream)
{
	return sdw_startup_stream(substream);
}

static void sdw_shutdown(struct snd_pcm_substream *substream)
{
	sdw_shutdown_stream(substream);
}

static const struct snd_soc_ops sdw_ops = {
	.startup = sdw_startup,
	.shutdown = sdw_shutdown,
};

static struct sof_sdw_codec_info codec_info_list[] = {
	{
		.id = 0x700,
		.direction = {true, true},
		.dai_name = "rt700-aif1",
		.init = sof_sdw_rt700_init,
	},
	{
		.id = 0x711,
		.direction = {true, true},
		.dai_name = "rt711-aif1",
		.init = sof_sdw_rt711_init,
	},
	{
		.id = 0x1308,
		.acpi_id = "10EC1308",
		.direction = {true, false},
		.dai_name = "rt1308-aif",
		.ops = &sof_sdw_rt1308_i2s_ops,
		.init = sof_sdw_rt1308_init,
	},
	{
		.id = 0x715,
		.direction = {false, true},
		.dai_name = "rt715-aif2",
		.init = sof_sdw_rt715_init,
	},
	{
		.id = 0x5682,
		.direction = {true, true},
		.dai_name = "rt5682-sdw",
		.init = sof_sdw_rt5682_init,
	},
};

static inline int find_codec_info_part(unsigned int part_id)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(codec_info_list); i++)
		if (part_id == codec_info_list[i].id)
			break;

	if (i == ARRAY_SIZE(codec_info_list))
		return -EINVAL;

	return i;
}

static inline int find_codec_info_acpi(const u8 *acpi_id)
{
	int i;

	if (!acpi_id[0])
		return -EINVAL;

	for (i = 0; i < ARRAY_SIZE(codec_info_list); i++)
		if (!memcmp(codec_info_list[i].acpi_id, acpi_id,
			    ACPI_ID_LEN))
			break;

	if (i == ARRAY_SIZE(codec_info_list))
		return -EINVAL;

	return i;
}

/*
 * get BE dailink number and CPU DAI number based on sdw link adr.
 * Since some sdw slaves may be aggregated, the CPU DAI number
 * may be larger than the number of BE dailinks.
 */
static int get_sdw_dailink_info(const struct snd_soc_acpi_link_adr *links,
				int *sdw_be_num, int *sdw_cpu_dai_num)
{
	const struct snd_soc_acpi_link_adr *link;
	bool group_visited[SDW_MAX_GROUPS];
	bool no_aggregation;
	int i;

	no_aggregation = sof_sdw_quirk & SOF_SDW_NO_AGGREGATION;
	*sdw_cpu_dai_num = 0;
	*sdw_be_num  = 0;

	if (!links)
		return -EINVAL;

	for (i = 0; i < SDW_MAX_GROUPS; i++)
		group_visited[i] = false;

	for (link = links; link->num_adr; link++) {
		const struct snd_soc_acpi_endpoint *endpoint;
		int part_id, codec_index;
		int stream;
		u64 adr;

		adr = link->adr_d->adr;
		part_id = SDW_PART_ID(adr);
		codec_index = find_codec_info_part(part_id);
		if (codec_index < 0)
			return codec_index;

		endpoint = link->adr_d->endpoints;

		/* count DAI number for playback and capture */
		for_each_pcm_streams(stream) {
			if (!codec_info_list[codec_index].direction[stream])
				continue;

			(*sdw_cpu_dai_num)++;

			/* count BE for each non-aggregated slave or group */
			if (!endpoint->aggregated || no_aggregation ||
			    !group_visited[endpoint->group_id])
				(*sdw_be_num)++;
		}

		if (endpoint->aggregated)
			group_visited[endpoint->group_id] = true;
	}

	return 0;
}

static void init_dai_link(struct snd_soc_dai_link *dai_links, int be_id,
			  char *name, int playback, int capture,
			  struct snd_soc_dai_link_component *cpus,
			  int cpus_num,
			  struct snd_soc_dai_link_component *codecs,
			  int codecs_num,
			  int (*init)(struct snd_soc_pcm_runtime *rtd),
			  const struct snd_soc_ops *ops)
{
	dai_links->id = be_id;
	dai_links->name = name;
	dai_links->platforms = platform_component;
	dai_links->num_platforms = ARRAY_SIZE(platform_component);
	dai_links->nonatomic = true;
	dai_links->no_pcm = 1;
	dai_links->cpus = cpus;
	dai_links->num_cpus = cpus_num;
	dai_links->codecs = codecs;
	dai_links->num_codecs = codecs_num;
	dai_links->dpcm_playback = playback;
	dai_links->dpcm_capture = capture;
	dai_links->init = init;
	dai_links->ops = ops;
}

static bool is_unique_device(const struct snd_soc_acpi_link_adr *link,
			     unsigned int sdw_version,
			     unsigned int mfg_id,
			     unsigned int part_id,
			     unsigned int class_id,
			     int index_in_link
			    )
{
	int i;

	for (i = 0; i < link->num_adr; i++) {
		unsigned int sdw1_version, mfg1_id, part1_id, class1_id;
		u64 adr;

		/* skip itself */
		if (i == index_in_link)
			continue;

		adr = link->adr_d[i].adr;

		sdw1_version = SDW_VERSION(adr);
		mfg1_id = SDW_MFG_ID(adr);
		part1_id = SDW_PART_ID(adr);
		class1_id = SDW_CLASS_ID(adr);

		if (sdw_version == sdw1_version &&
		    mfg_id == mfg1_id &&
		    part_id == part1_id &&
		    class_id == class1_id)
			return false;
	}

	return true;
}

static int create_codec_dai_name(struct device *dev,
				 const struct snd_soc_acpi_link_adr *link,
				 struct snd_soc_dai_link_component *codec,
				 int offset)
{
	int i;

	for (i = 0; i < link->num_adr; i++) {
		unsigned int sdw_version, unique_id, mfg_id;
		unsigned int link_id, part_id, class_id;
		int codec_index, comp_index;
		char *codec_str;
		u64 adr;

		adr = link->adr_d[i].adr;

		sdw_version = SDW_VERSION(adr);
		link_id = SDW_DISCO_LINK_ID(adr);
		unique_id = SDW_UNIQUE_ID(adr);
		mfg_id = SDW_MFG_ID(adr);
		part_id = SDW_PART_ID(adr);
		class_id = SDW_CLASS_ID(adr);

		comp_index = i + offset;
		if (is_unique_device(link, sdw_version, mfg_id, part_id,
				     class_id, i)) {
			codec_str = "sdw:%x:%x:%x:%x";
			codec[comp_index].name =
				devm_kasprintf(dev, GFP_KERNEL, codec_str,
					       link_id, mfg_id, part_id,
					       class_id);
		} else {
			codec_str = "sdw:%x:%x:%x:%x:%x";
			codec[comp_index].name =
				devm_kasprintf(dev, GFP_KERNEL, codec_str,
					       link_id, mfg_id, part_id,
					       class_id, unique_id);
		}

		if (!codec[comp_index].name)
			return -ENOMEM;

		codec_index = find_codec_info_part(part_id);
		if (codec_index < 0)
			return codec_index;

		codec[comp_index].dai_name =
			codec_info_list[codec_index].dai_name;
	}

	return 0;
}

static int set_codec_init_func(const struct snd_soc_acpi_link_adr *link,
			       struct snd_soc_dai_link *dai_links,
			       bool playback, int group_id)
{
	int i;

	do {
		/*
		 * Initialize the codec. If codec is part of an aggregated
		 * group (group_id>0), initialize all codecs belonging to
		 * same group.
		 */
		for (i = 0; i < link->num_adr; i++) {
			unsigned int part_id;
			int codec_index;

			part_id = SDW_PART_ID(link->adr_d[i].adr);
			codec_index = find_codec_info_part(part_id);

			if (codec_index < 0)
				return codec_index;
			/* The group_id is > 0 iff the codec is aggregated */
			if (link->adr_d[i].endpoints->group_id != group_id)
				continue;
			if (codec_info_list[codec_index].init)
				codec_info_list[codec_index].init(link,
						dai_links,
						&codec_info_list[codec_index],
						playback);
		}
		link++;
	} while (link->mask && group_id);

	return 0;
}

/*
 * check endpoint status in slaves and gather link ID for all slaves in
 * the same group to generate different CPU DAI. Now only support
 * one sdw link with all slaves set with only single group id.
 *
 * one slave on one sdw link with aggregated = 0
 * one sdw BE DAI <---> one-cpu DAI <---> one-codec DAI
 *
 * two or more slaves on one sdw link with aggregated = 0
 * one sdw BE DAI  <---> one-cpu DAI <---> multi-codec DAIs
 *
 * multiple links with multiple slaves with aggregated = 1
 * one sdw BE DAI  <---> 1 .. N CPU DAIs <----> 1 .. N codec DAIs
 */
static int get_slave_info(const struct snd_soc_acpi_link_adr *adr_link,
			  struct device *dev, int *cpu_dai_id, int *cpu_dai_num,
			  int *codec_num, int *group_id,
			  bool *group_generated)
{
	const struct snd_soc_acpi_adr_device *adr_d;
	const struct snd_soc_acpi_link_adr *adr_next;
	bool no_aggregation;
	int index = 0;

	no_aggregation = sof_sdw_quirk & SOF_SDW_NO_AGGREGATION;
	*codec_num = adr_link->num_adr;
	adr_d = adr_link->adr_d;

	/* make sure the link mask has a single bit set */
	if (!is_power_of_2(adr_link->mask))
		return -EINVAL;

	cpu_dai_id[index++] = ffs(adr_link->mask) - 1;
	if (!adr_d->endpoints->aggregated || no_aggregation) {
		*cpu_dai_num = 1;
		*group_id = 0;
		return 0;
	}

	*group_id = adr_d->endpoints->group_id;

	/* gather other link ID of slaves in the same group */
	for (adr_next = adr_link + 1; adr_next && adr_next->num_adr;
		adr_next++) {
		const struct snd_soc_acpi_endpoint *endpoint;

		endpoint = adr_next->adr_d->endpoints;
		if (!endpoint->aggregated ||
		    endpoint->group_id != *group_id)
			continue;

		/* make sure the link mask has a single bit set */
		if (!is_power_of_2(adr_next->mask))
			return -EINVAL;

		if (index >= SDW_MAX_CPU_DAIS) {
			dev_err(dev, " cpu_dai_id array overflows");
			return -EINVAL;
		}

		cpu_dai_id[index++] = ffs(adr_next->mask) - 1;
		*codec_num += adr_next->num_adr;
	}

	/*
	 * indicate CPU DAIs for this group have been generated
	 * to avoid generating CPU DAIs for this group again.
	 */
	group_generated[*group_id] = true;
	*cpu_dai_num = index;

	return 0;
}

static int create_sdw_dailink(struct device *dev, int *be_index,
			      struct snd_soc_dai_link *dai_links,
			      int sdw_be_num, int sdw_cpu_dai_num,
			      struct snd_soc_dai_link_component *cpus,
			      const struct snd_soc_acpi_link_adr *link,
			      int *cpu_id, bool *group_generated)
{
	const struct snd_soc_acpi_link_adr *link_next;
	struct snd_soc_dai_link_component *codecs;
	int cpu_dai_id[SDW_MAX_CPU_DAIS];
	int cpu_dai_num, cpu_dai_index;
	unsigned int part_id, group_id;
	int codec_idx = 0;
	int i = 0, j = 0;
	int codec_index;
	int codec_num;
	int stream;
	int ret;
	int k;

	ret = get_slave_info(link, dev, cpu_dai_id, &cpu_dai_num, &codec_num,
			     &group_id, group_generated);
	if (ret)
		return ret;

	codecs = devm_kcalloc(dev, codec_num, sizeof(*codecs), GFP_KERNEL);
	if (!codecs)
		return -ENOMEM;

	/* generate codec name on different links in the same group */
	for (link_next = link; link_next && link_next->num_adr &&
	     i < cpu_dai_num; link_next++) {
		const struct snd_soc_acpi_endpoint *endpoints;

		endpoints = link_next->adr_d->endpoints;
		if (group_id && (!endpoints->aggregated ||
				 endpoints->group_id != group_id))
			continue;

		/* skip the link excluded by this processed group */
		if (cpu_dai_id[i] != ffs(link_next->mask) - 1)
			continue;

		ret = create_codec_dai_name(dev, link_next, codecs, codec_idx);
		if (ret < 0)
			return ret;

		/* check next link to create codec dai in the processed group */
		i++;
		codec_idx += link_next->num_adr;
	}

	/* find codec info to create BE DAI */
	part_id = SDW_PART_ID(link->adr_d[0].adr);
	codec_index = find_codec_info_part(part_id);
	if (codec_index < 0)
		return codec_index;

	cpu_dai_index = *cpu_id;
	for_each_pcm_streams(stream) {
		char *name, *cpu_name;
		int playback, capture;
		static const char * const sdw_stream_name[] = {
			"SDW%d-Playback",
			"SDW%d-Capture",
		};

		if (!codec_info_list[codec_index].direction[stream])
			continue;

		/* create stream name according to first link id */
		name = devm_kasprintf(dev, GFP_KERNEL,
				      sdw_stream_name[stream], cpu_dai_id[0]);
		if (!name)
			return -ENOMEM;

		/*
		 * generate CPU DAI name base on the sdw link ID and
		 * PIN ID with offset of 2 according to sdw dai driver.
		 */
		for (k = 0; k < cpu_dai_num; k++) {
			cpu_name = devm_kasprintf(dev, GFP_KERNEL,
						  "SDW%d Pin%d", cpu_dai_id[k],
						  j + SDW_INTEL_BIDIR_PDI_BASE);
			if (!cpu_name)
				return -ENOMEM;

			if (cpu_dai_index >= sdw_cpu_dai_num) {
				dev_err(dev, "invalid cpu dai index %d",
					cpu_dai_index);
				return -EINVAL;
			}

			cpus[cpu_dai_index++].dai_name = cpu_name;
		}

		if (*be_index >= sdw_be_num) {
			dev_err(dev, " invalid be dai index %d", *be_index);
			return -EINVAL;
		}

		if (*cpu_id >= sdw_cpu_dai_num) {
			dev_err(dev, " invalid cpu dai index %d", *cpu_id);
			return -EINVAL;
		}

		playback = (stream == SNDRV_PCM_STREAM_PLAYBACK);
		capture = (stream == SNDRV_PCM_STREAM_CAPTURE);
		init_dai_link(dai_links + *be_index, *be_index, name,
			      playback, capture,
			      cpus + *cpu_id, cpu_dai_num,
			      codecs, codec_num,
			      NULL, &sdw_ops);

		ret = set_codec_init_func(link, dai_links + (*be_index)++,
					  playback, group_id);
		if (ret < 0) {
			dev_err(dev, "failed to init codec %d", codec_index);
			return ret;
		}

		*cpu_id += cpu_dai_num;
		j++;
	}

	return 0;
}

/*
 * DAI link ID of SSP & DMIC & HDMI are based on last
 * link ID used by sdw link. Since be_id may be changed
 * in init func of sdw codec, it is not equal to be_id
 */
static inline int get_next_be_id(struct snd_soc_dai_link *links,
				 int be_id)
{
	return links[be_id - 1].id + 1;
}

static int sof_card_dai_links_create(struct device *dev,
				     struct snd_soc_acpi_mach *mach,
				     struct snd_soc_card *card)
{
	int ssp_num, sdw_be_num = 0, hdmi_num = 0, dmic_num;
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
	struct snd_soc_dai_link_component *idisp_components;
#endif
	struct snd_soc_dai_link_component *ssp_components;
	struct snd_soc_acpi_mach_params *mach_params;
	const struct snd_soc_acpi_link_adr *adr_link;
	struct snd_soc_dai_link_component *cpus;
	bool group_generated[SDW_MAX_GROUPS];
	int ssp_codec_index, ssp_mask;
	struct snd_soc_dai_link *links;
	int num_links, link_id = 0;
	char *name, *cpu_name;
	int total_cpu_dai_num;
	int sdw_cpu_dai_num;
	int i, j, be_id = 0;
	int cpu_id = 0;
	int comp_num;
	int ret;

	/* reset amp_num to ensure amp_num++ starts from 0 in each probe */
	for (i = 0; i < ARRAY_SIZE(codec_info_list); i++)
		codec_info_list[i].amp_num = 0;

#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
	hdmi_num = sof_sdw_quirk & SOF_SDW_TGL_HDMI ?
				SOF_TGL_HDMI_COUNT : SOF_PRE_TGL_HDMI_COUNT;
#endif

	ssp_mask = SOF_SSP_GET_PORT(sof_sdw_quirk);
	/*
	 * on generic tgl platform, I2S or sdw mode is supported
	 * based on board rework. A ACPI device is registered in
	 * system only when I2S mode is supported, not sdw mode.
	 * Here check ACPI ID to confirm I2S is supported.
	 */
	ssp_codec_index = find_codec_info_acpi(mach->id);
	ssp_num = ssp_codec_index >= 0 ? hweight_long(ssp_mask) : 0;
	comp_num = hdmi_num + ssp_num;

	mach_params = &mach->mach_params;
	ret = get_sdw_dailink_info(mach_params->links,
				   &sdw_be_num, &sdw_cpu_dai_num);
	if (ret < 0) {
		dev_err(dev, "failed to get sdw link info %d", ret);
		return ret;
	}

	/* enable dmic01 & dmic16k */
	dmic_num = (sof_sdw_quirk & SOF_SDW_PCH_DMIC) ? 2 : 0;
	comp_num += dmic_num;

	dev_dbg(dev, "sdw %d, ssp %d, dmic %d, hdmi %d", sdw_be_num, ssp_num,
		dmic_num, hdmi_num);

	/* allocate BE dailinks */
	num_links = comp_num + sdw_be_num;
	links = devm_kcalloc(dev, num_links, sizeof(*links), GFP_KERNEL);

	/* allocated CPU DAIs */
	total_cpu_dai_num = comp_num + sdw_cpu_dai_num;
	cpus = devm_kcalloc(dev, total_cpu_dai_num, sizeof(*cpus),
			    GFP_KERNEL);

	if (!links || !cpus)
		return -ENOMEM;

	/* SDW */
	if (!sdw_be_num)
		goto SSP;

	adr_link = mach_params->links;
	if (!adr_link)
		return -EINVAL;

	/*
	 * SoundWire Slaves aggregated in the same group may be
	 * located on different hardware links. Clear array to indicate
	 * CPU DAIs for this group have not been generated.
	 */
	for (i = 0; i < SDW_MAX_GROUPS; i++)
		group_generated[i] = false;

	/* generate DAI links by each sdw link */
	for (; adr_link->num_adr; adr_link++) {
		const struct snd_soc_acpi_endpoint *endpoint;

		endpoint = adr_link->adr_d->endpoints;
		if (endpoint->aggregated && !endpoint->group_id) {
			dev_err(dev, "invalid group id on link %x",
				adr_link->mask);
			continue;
		}

		/* this group has been generated */
		if (endpoint->aggregated &&
		    group_generated[endpoint->group_id])
			continue;

		ret = create_sdw_dailink(dev, &be_id, links, sdw_be_num,
					 sdw_cpu_dai_num, cpus, adr_link,
					 &cpu_id, group_generated);
		if (ret < 0) {
			dev_err(dev, "failed to create dai link %d", be_id);
			return -ENOMEM;
		}
	}

	/* non-sdw DAI follows sdw DAI */
	link_id = be_id;

	/* get BE ID for non-sdw DAI */
	be_id = get_next_be_id(links, be_id);

SSP:
	/* SSP */
	if (!ssp_num)
		goto DMIC;

	for (i = 0, j = 0; ssp_mask; i++, ssp_mask >>= 1) {
		struct sof_sdw_codec_info *info;
		int playback, capture;
		char *codec_name;

		if (!(ssp_mask & 0x1))
			continue;

		name = devm_kasprintf(dev, GFP_KERNEL,
				      "SSP%d-Codec", i);
		if (!name)
			return -ENOMEM;

		cpu_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", i);
		if (!cpu_name)
			return -ENOMEM;

		ssp_components = devm_kzalloc(dev, sizeof(*ssp_components),
					      GFP_KERNEL);
		if (!ssp_components)
			return -ENOMEM;

		info = &codec_info_list[ssp_codec_index];
		codec_name = devm_kasprintf(dev, GFP_KERNEL, "i2c-%s:0%d",
					    info->acpi_id, j++);
		if (!codec_name)
			return -ENOMEM;

		ssp_components->name = codec_name;
		ssp_components->dai_name = info->dai_name;
		cpus[cpu_id].dai_name = cpu_name;

		playback = info->direction[SNDRV_PCM_STREAM_PLAYBACK];
		capture = info->direction[SNDRV_PCM_STREAM_CAPTURE];
		init_dai_link(links + link_id, be_id, name,
			      playback, capture,
			      cpus + cpu_id, 1,
			      ssp_components, 1,
			      NULL, info->ops);

		ret = info->init(NULL, links + link_id, info, 0);
		if (ret < 0)
			return ret;

		INC_ID(be_id, cpu_id, link_id);
	}

DMIC:
	/* dmic */
	if (dmic_num > 0) {
		cpus[cpu_id].dai_name = "DMIC01 Pin";
		init_dai_link(links + link_id, be_id, "dmic01",
			      0, 1, // DMIC only supports capture
			      cpus + cpu_id, 1,
			      dmic_component, 1,
			      sof_sdw_dmic_init, NULL);
		INC_ID(be_id, cpu_id, link_id);

		cpus[cpu_id].dai_name = "DMIC16k Pin";
		init_dai_link(links + link_id, be_id, "dmic16k",
			      0, 1, // DMIC only supports capture
			      cpus + cpu_id, 1,
			      dmic_component, 1,
			      /* don't call sof_sdw_dmic_init() twice */
			      NULL, NULL);
		INC_ID(be_id, cpu_id, link_id);
	}

#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
	/* HDMI */
	if (hdmi_num > 0) {
		idisp_components = devm_kcalloc(dev, hdmi_num,
						sizeof(*idisp_components),
						GFP_KERNEL);
		if (!idisp_components)
			return -ENOMEM;
	}

	for (i = 0; i < hdmi_num; i++) {
		name = devm_kasprintf(dev, GFP_KERNEL,
				      "iDisp%d", i + 1);
		if (!name)
			return -ENOMEM;

		idisp_components[i].name = "ehdaudio0D2";
		idisp_components[i].dai_name = devm_kasprintf(dev,
							      GFP_KERNEL,
							      "intel-hdmi-hifi%d",
							      i + 1);
		if (!idisp_components[i].dai_name)
			return -ENOMEM;

		cpu_name = devm_kasprintf(dev, GFP_KERNEL,
					  "iDisp%d Pin", i + 1);
		if (!cpu_name)
			return -ENOMEM;

		cpus[cpu_id].dai_name = cpu_name;
		init_dai_link(links + link_id, be_id, name,
			      1, 0, // HDMI only supports playback
			      cpus + cpu_id, 1,
			      idisp_components + i, 1,
			      sof_sdw_hdmi_init, NULL);
		INC_ID(be_id, cpu_id, link_id);
	}
#endif

	card->dai_link = links;
	card->num_links = num_links;

	return 0;
}

/* SoC card */
static const char sdw_card_long_name[] = "Intel Soundwire SOF";

static struct snd_soc_card card_sof_sdw = {
	.name = "soundwire",
	.late_probe = sof_sdw_hdmi_card_late_probe,
	.codec_conf = codec_conf,
	.num_configs = ARRAY_SIZE(codec_conf),
};

static int mc_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &card_sof_sdw;
	struct snd_soc_acpi_mach *mach;
	struct mc_private *ctx;
	int amp_num = 0, i;
	int ret;

	dev_dbg(&pdev->dev, "Entry %s\n", __func__);

	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
	if (!ctx)
		return -ENOMEM;

	dmi_check_system(sof_sdw_quirk_table);

#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
#endif

	card->dev = &pdev->dev;

	mach = pdev->dev.platform_data;
	ret = sof_card_dai_links_create(&pdev->dev, mach,
					card);
	if (ret < 0)
		return ret;

	ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv;

	snd_soc_card_set_drvdata(card, ctx);

	/*
	 * the default amp_num is zero for each codec and
	 * amp_num will only be increased for active amp
	 * codecs on used platform
	 */
	for (i = 0; i < ARRAY_SIZE(codec_info_list); i++)
		amp_num += codec_info_list[i].amp_num;

	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
					  "cfg-spk:%d, cfg-amp:%d",
					  (sof_sdw_quirk & SOF_SDW_FOUR_SPK)
					  ? 4 : 2, amp_num);
	if (!card->components)
		return -ENOMEM;

	card->long_name = sdw_card_long_name;

	/* Register the card */
	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret) {
		dev_err(card->dev, "snd_soc_register_card failed %d\n", ret);
		return ret;
	}

	platform_set_drvdata(pdev, card);

	return ret;
}

static struct platform_driver sof_sdw_driver = {
	.driver = {
		.name = "sof_sdw",
		.pm = &snd_soc_pm_ops,
	},
	.probe = mc_probe,
};

module_platform_driver(sof_sdw_driver);

MODULE_DESCRIPTION("ASoC SoundWire Generic Machine driver");
MODULE_AUTHOR("Bard Liao <yung-chuan.liao@linux.intel.com>");
MODULE_AUTHOR("Rander Wang <rander.wang@linux.intel.com>");
MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:sof_sdw");