@@ -119,6 +119,24 @@ config SND_SOC_AMD_SOF_MACH
help
This option enables SOF sound card support for ACP audio.
+config SND_SOC_AMD_SOF_SDW_MACH
+ tristate "AMD SOF Soundwire Machine Driver Support"
+ depends on X86 && PCI && ACPI
+ depends on SOUNDWIRE
+ select SND_SOC_SDW_UTILS
+ select SND_SOC_DMIC
+ select SND_SOC_RT711_SDW
+ select SND_SOC_RT711_SDCA_SDW
+ select SND_SOC_RT1316_SDW
+ select SND_SOC_RT715_SDW
+ select SND_SOC_RT715_SDCA_SDW
+ help
+ This option enables SOF sound card support for SoundWire enabled
+ AMD platforms along with ACP PDM controller.
+ Say Y if you want to enable SoundWire based machine driver support
+ on AMD platform.
+ If unsure select "N".
+
endif # SND_SOC_AMD_ACP_COMMON
config SND_AMD_SOUNDWIRE_ACPI
@@ -23,6 +23,7 @@ snd-acp-mach-y := acp-mach-common.o
snd-acp-legacy-mach-y := acp-legacy-mach.o acp3x-es83xx/acp3x-es83xx.o
snd-acp-sof-mach-y := acp-sof-mach.o
snd-soc-acpi-amd-match-y := amd-acp63-acpi-match.o
+snd-acp-sdw-sof-mach-y += acp-sdw-sof-mach.o
obj-$(CONFIG_SND_SOC_AMD_ACP_PCM) += snd-acp-pcm.o
obj-$(CONFIG_SND_SOC_AMD_ACP_I2S) += snd-acp-i2s.o
@@ -40,3 +41,4 @@ obj-$(CONFIG_SND_SOC_AMD_MACH_COMMON) += snd-acp-mach.o
obj-$(CONFIG_SND_SOC_AMD_LEGACY_MACH) += snd-acp-legacy-mach.o
obj-$(CONFIG_SND_SOC_AMD_SOF_MACH) += snd-acp-sof-mach.o
obj-$(CONFIG_SND_SOC_ACPI_AMD_MATCH) += snd-soc-acpi-amd-match.o
+obj-$(CONFIG_SND_SOC_AMD_SOF_SDW_MACH) += snd-acp-sdw-sof-mach.o
new file mode 100644
@@ -0,0 +1,742 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright(c) 2024 Advanced Micro Devices, Inc.
+
+/*
+ * acp-sdw-sof-mach - ASoC Machine driver for AMD SoundWire platforms
+ */
+
+#include <linux/bitmap.h>
+#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 "soc_amd_sdw_common.h"
+#include "../../codecs/rt711.h"
+
+static unsigned long sof_sdw_quirk = RT711_JD1;
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, int, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
+
+static void log_quirks(struct device *dev)
+{
+ if (SOC_JACK_JDSRC(sof_sdw_quirk))
+ dev_dbg(dev, "quirk realtek,jack-detect-source %ld\n",
+ SOC_JACK_JDSRC(sof_sdw_quirk));
+ if (sof_sdw_quirk & ASOC_SDW_ACP_DMIC)
+ dev_dbg(dev, "quirk SOC_SDW_ACP_DMIC enabled\n");
+}
+
+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, "AMD"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Birman-PHX"),
+ },
+ .driver_data = (void *)RT711_JD2,
+ },
+ {}
+};
+
+static struct snd_soc_dai_link_component platform_component[] = {
+ {
+ /* name might be overridden during probe */
+ .name = "0000:04:00.5",
+ }
+};
+
+static const struct snd_soc_ops sdw_ops = {
+ .startup = asoc_sdw_startup,
+ .prepare = asoc_sdw_prepare,
+ .trigger = asoc_sdw_trigger,
+ .hw_params = asoc_sdw_hw_params,
+ .hw_free = asoc_sdw_hw_free,
+ .shutdown = asoc_sdw_shutdown,
+};
+
+/*
+ * 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_dailink_info(struct device *dev,
+ const struct snd_soc_acpi_link_adr *adr_link,
+ int *sdw_be_num, int *codecs_num)
+{
+ bool group_visited[AMD_SDW_MAX_GROUPS];
+ int i;
+ int j;
+
+ *sdw_be_num = 0;
+
+ if (!adr_link)
+ return -EINVAL;
+
+ for (i = 0; i < AMD_SDW_MAX_GROUPS; i++)
+ group_visited[i] = false;
+
+ for (; adr_link->num_adr; adr_link++) {
+ const struct snd_soc_acpi_endpoint *endpoint;
+ struct asoc_sdw_codec_info *codec_info;
+ int stream;
+ u64 adr;
+
+ /* make sure the link mask has a single bit set */
+ if (!is_power_of_2(adr_link->mask))
+ return -EINVAL;
+
+ for (i = 0; i < adr_link->num_adr; i++) {
+ adr = adr_link->adr_d[i].adr;
+ codec_info = asoc_sdw_find_codec_info_part(adr);
+ if (!codec_info)
+ return -EINVAL;
+
+ *codecs_num += codec_info->dai_num;
+
+ if (!adr_link->adr_d[i].name_prefix) {
+ dev_err(dev, "codec 0x%llx does not have a name prefix\n",
+ adr_link->adr_d[i].adr);
+ return -EINVAL;
+ }
+
+ endpoint = adr_link->adr_d[i].endpoints;
+ if (endpoint->aggregated && !endpoint->group_id) {
+ dev_err(dev, "invalid group id on link %x\n",
+ adr_link->mask);
+ return -EINVAL;
+ }
+
+ for (j = 0; j < codec_info->dai_num; j++) {
+ /* count DAI number for playback and capture */
+ for_each_pcm_streams(stream) {
+ if (!codec_info->dais[j].direction[stream])
+ continue;
+
+ /* count BE for each non-aggregated slave or group */
+ if (!endpoint->aggregated ||
+ !group_visited[endpoint->group_id])
+ (*sdw_be_num)++;
+ }
+ }
+
+ if (endpoint->aggregated)
+ group_visited[endpoint->group_id] = true;
+ }
+ }
+ return 0;
+}
+
+static int fill_sdw_codec_dlc(struct device *dev,
+ const struct snd_soc_acpi_link_adr *adr_link,
+ struct snd_soc_dai_link_component *codec,
+ int adr_index, int dai_index)
+{
+ u64 adr = adr_link->adr_d[adr_index].adr;
+ struct asoc_sdw_codec_info *codec_info;
+
+ codec_info = asoc_sdw_find_codec_info_part(adr);
+ if (!codec_info)
+ return -EINVAL;
+
+ codec->name = asoc_sdw_get_codec_name(dev, codec_info, adr_link, adr_index);
+ if (!codec->name)
+ return -ENOMEM;
+
+ codec->dai_name = codec_info->dais[dai_index].dai_name;
+ dev_err(dev, "codec->dai_name:%s\n", codec->dai_name);
+ return 0;
+}
+
+static int set_codec_init_func(struct snd_soc_card *card,
+ const struct snd_soc_acpi_link_adr *adr_link,
+ struct snd_soc_dai_link *dai_links,
+ bool playback, int group_id, int adr_index, int dai_index)
+{
+ int i = adr_index;
+
+ do {
+ /*
+ * Initialize the codec. If codec is part of an aggregated
+ * group (group_id>0), initialize all codecs belonging to
+ * same group.
+ * The first link should start with adr_link->adr_d[adr_index]
+ * because that is the device that we want to initialize and
+ * we should end immediately if it is not aggregated (group_id=0)
+ */
+ for ( ; i < adr_link->num_adr; i++) {
+ struct asoc_sdw_codec_info *codec_info;
+
+ codec_info = asoc_sdw_find_codec_info_part(adr_link->adr_d[i].adr);
+ if (!codec_info)
+ return -EINVAL;
+
+ /* The group_id is > 0 iff the codec is aggregated */
+ if (adr_link->adr_d[i].endpoints->group_id != group_id)
+ continue;
+ if (codec_info->dais[dai_index].init)
+ codec_info->dais[dai_index].init(card,
+ dai_links,
+ codec_info,
+ playback);
+
+ if (!group_id)
+ return 0;
+ }
+
+ i = 0;
+ adr_link++;
+ } while (adr_link->mask);
+
+ 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 = 1
+ * one sdw BE DAI <---> one-cpu DAI <---> multi-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, unsigned int *group_id,
+ int adr_index)
+{
+ int i;
+
+ if (!adr_link->adr_d[adr_index].endpoints->aggregated) {
+ cpu_dai_id[0] = ffs(adr_link->mask) - 1;
+ *cpu_dai_num = 1;
+ *codec_num = 1;
+ *group_id = 0;
+ return 0;
+ }
+
+ *codec_num = 0;
+ *cpu_dai_num = 0;
+ *group_id = adr_link->adr_d[adr_index].endpoints->group_id;
+
+ /* Count endpoints with the same group_id in the adr_link */
+ for (; adr_link && adr_link->num_adr; adr_link++) {
+ unsigned int link_codecs = 0;
+
+ for (i = 0; i < adr_link->num_adr; i++) {
+ if (adr_link->adr_d[i].endpoints->aggregated &&
+ adr_link->adr_d[i].endpoints->group_id == *group_id)
+ link_codecs++;
+ }
+
+ if (link_codecs) {
+ *codec_num += link_codecs;
+
+ if (*cpu_dai_num >= ACP63_SDW_MAX_CPU_DAIS) {
+ dev_err(dev, "cpu_dai_id array overflowed\n");
+ return -EINVAL;
+ }
+
+ cpu_dai_id[(*cpu_dai_num)++] = ffs(adr_link->mask) - 1;
+ }
+ }
+
+ return 0;
+}
+
+static int get_acp63_cpu_pin_id(u32 sdw_link_id, int be_id, int *cpu_pin_id, struct device *dev)
+{
+ switch (sdw_link_id) {
+ case AMD_SDW0:
+ switch (be_id) {
+ case SOC_SDW_JACK_OUT_DAI_ID:
+ *cpu_pin_id = ACP63_SW0_AUDIO0_TX;
+ break;
+ case SOC_SDW_JACK_IN_DAI_ID:
+ *cpu_pin_id = ACP63_SW0_AUDIO0_RX;
+ break;
+ case SOC_SDW_AMP_OUT_DAI_ID:
+ *cpu_pin_id = ACP63_SW0_AUDIO1_TX;
+ break;
+ case SOC_SDW_AMP_IN_DAI_ID:
+ *cpu_pin_id = ACP63_SW0_AUDIO1_RX;
+ break;
+ case SOC_SDW_DMIC_DAI_ID:
+ *cpu_pin_id = ACP63_SW0_AUDIO2_RX;
+ break;
+ default:
+ dev_err(dev, "Invalid be id:%d\n", be_id);
+ return -EINVAL;
+ }
+ break;
+ case AMD_SDW1:
+ switch (be_id) {
+ case SOC_SDW_JACK_OUT_DAI_ID:
+ case SOC_SDW_AMP_OUT_DAI_ID:
+ *cpu_pin_id = ACP63_SW1_AUDIO0_TX;
+ break;
+ case SOC_SDW_JACK_IN_DAI_ID:
+ case SOC_SDW_AMP_IN_DAI_ID:
+ case SOC_SDW_DMIC_DAI_ID:
+ *cpu_pin_id = ACP63_SW1_AUDIO0_RX;
+ break;
+ default:
+ dev_err(dev, "invalid be_id:%d\n", be_id);
+ return -EINVAL;
+ }
+ break;
+ default:
+ dev_err(dev, "Invalid link id:%d\n", sdw_link_id);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"};
+
+static int create_sdw_dailink(struct snd_soc_card *card,
+ struct snd_soc_dai_link **dai_links,
+ const struct snd_soc_acpi_link_adr *adr_link,
+ struct snd_soc_codec_conf **codec_conf,
+ int *be_id, int adr_index, int dai_index)
+{
+ struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
+ struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
+ struct device *dev = card->dev;
+ const struct snd_soc_acpi_link_adr *adr_link_next;
+ struct snd_soc_dai_link_ch_map *sdw_codec_ch_maps;
+ struct snd_soc_dai_link_component *codecs;
+ struct snd_soc_dai_link_component *cpus;
+ struct asoc_sdw_codec_info *codec_info;
+ int cpu_dai_id[ACP63_SDW_MAX_CPU_DAIS];
+ int cpu_dai_num;
+ unsigned int group_id;
+ unsigned int sdw_link_id;
+ int codec_dlc_index = 0;
+ int codec_num;
+ int stream;
+ int i = 0;
+ int j, k;
+ int ret;
+ int cpu_pin_id;
+
+ ret = get_slave_info(adr_link, dev, cpu_dai_id, &cpu_dai_num, &codec_num,
+ &group_id, adr_index);
+ if (ret)
+ return ret;
+ codecs = devm_kcalloc(dev, codec_num, sizeof(*codecs), GFP_KERNEL);
+ if (!codecs)
+ return -ENOMEM;
+
+ sdw_codec_ch_maps = devm_kcalloc(dev, codec_num,
+ sizeof(*sdw_codec_ch_maps), GFP_KERNEL);
+ if (!sdw_codec_ch_maps)
+ return -ENOMEM;
+
+ /* generate codec name on different links in the same group */
+ j = adr_index;
+ for (adr_link_next = adr_link; adr_link_next && adr_link_next->num_adr &&
+ i < cpu_dai_num; adr_link_next++) {
+ /* skip the link excluded by this processed group */
+ if (cpu_dai_id[i] != ffs(adr_link_next->mask) - 1)
+ continue;
+
+ /* j reset after loop, adr_index only applies to first link */
+ for (k = 0 ; (j < adr_link_next->num_adr) && (k < codec_num) ; j++, k++) {
+ const struct snd_soc_acpi_endpoint *endpoints;
+
+ endpoints = adr_link_next->adr_d[j].endpoints;
+ if (group_id && (!endpoints->aggregated ||
+ endpoints->group_id != group_id))
+ continue;
+
+ /* sanity check */
+ if (*codec_conf >= card->codec_conf + card->num_configs) {
+ dev_err(dev, "codec_conf array overflowed\n");
+ return -EINVAL;
+ }
+
+ ret = fill_sdw_codec_dlc(dev, adr_link_next,
+ &codecs[codec_dlc_index],
+ j, dai_index);
+ if (ret)
+ return ret;
+ (*codec_conf)->dlc = codecs[codec_dlc_index];
+ (*codec_conf)->name_prefix = adr_link_next->adr_d[j].name_prefix;
+
+ sdw_codec_ch_maps[codec_dlc_index].cpu = i;
+ sdw_codec_ch_maps[codec_dlc_index].codec = codec_dlc_index;
+
+ codec_dlc_index++;
+ (*codec_conf)++;
+ }
+ j = 0;
+
+ /* check next link to create codec dai in the processed group */
+ i++;
+ }
+
+ /* find codec info to create BE DAI */
+ codec_info = asoc_sdw_find_codec_info_part(adr_link->adr_d[adr_index].adr);
+ if (!codec_info)
+ return -EINVAL;
+
+ ctx->ignore_internal_dmic |= codec_info->ignore_internal_dmic;
+
+ sdw_link_id = (adr_link->adr_d[adr_index].adr) >> 48;
+ for_each_pcm_streams(stream) {
+ char *name, *cpu_name;
+ int playback, capture;
+ static const char * const sdw_stream_name[] = {
+ "SDW%d-PIN%d-PLAYBACK",
+ "SDW%d-PIN%d-CAPTURE",
+ "SDW%d-PIN%d-PLAYBACK-%s",
+ "SDW%d-PIN%d-CAPTURE-%s",
+ };
+
+ if (!codec_info->dais[dai_index].direction[stream])
+ continue;
+
+ *be_id = codec_info->dais[dai_index].dailink[stream];
+ if (*be_id < 0) {
+ dev_err(dev, "Invalid dailink id %d\n", *be_id);
+ return -EINVAL;
+ }
+ switch (amd_ctx->acp_rev) {
+ case ACP63_PCI_REV:
+ ret = get_acp63_cpu_pin_id(sdw_link_id, *be_id, &cpu_pin_id, dev);
+ if (ret)
+ return ret;
+ break;
+ default:
+ return -EINVAL;
+ }
+ /* create stream name according to first link id */
+ if (ctx->append_dai_type) {
+ name = devm_kasprintf(dev, GFP_KERNEL,
+ sdw_stream_name[stream + 2], sdw_link_id, cpu_pin_id,
+ type_strings[codec_info->dais[dai_index].dai_type]);
+ } else {
+ name = devm_kasprintf(dev, GFP_KERNEL,
+ sdw_stream_name[stream], sdw_link_id, cpu_pin_id);
+ }
+ if (!name)
+ return -ENOMEM;
+
+ cpus = devm_kcalloc(dev, cpu_dai_num, sizeof(*cpus), GFP_KERNEL);
+ if (!cpus)
+ return -ENOMEM;
+ /*
+ * generate CPU DAI name base on the sdw link ID and
+ * cpu pin id according to sdw dai driver.
+ */
+ for (k = 0; k < cpu_dai_num; k++) {
+ cpu_name = devm_kasprintf(dev, GFP_KERNEL,
+ "SDW%d Pin%d", sdw_link_id, cpu_pin_id);
+ if (!cpu_name)
+ return -ENOMEM;
+
+ cpus[k].dai_name = cpu_name;
+ }
+
+ playback = (stream == SNDRV_PCM_STREAM_PLAYBACK);
+ capture = (stream == SNDRV_PCM_STREAM_CAPTURE);
+ asoc_sdw_init_dai_link(dev, *dai_links, be_id, name,
+ playback, capture,
+ cpus, cpu_dai_num,
+ platform_component, ARRAY_SIZE(platform_component),
+ codecs, codec_num,
+ asoc_sdw_rtd_init, &sdw_ops);
+ /*
+ * SoundWire DAILINKs use 'stream' functions and Bank Switch operations
+ * based on wait_for_completion(), tag them as 'nonatomic'.
+ */
+ (*dai_links)->nonatomic = true;
+ (*dai_links)->ch_maps = sdw_codec_ch_maps;
+
+ ret = set_codec_init_func(card, adr_link, *dai_links,
+ playback, group_id, adr_index, dai_index);
+ if (ret < 0) {
+ dev_err(dev, "failed to init codec 0x%x\n", codec_info->part_id);
+ return ret;
+ }
+
+ (*dai_links)++;
+ }
+ return 0;
+}
+
+static int create_dmic_dailinks(struct snd_soc_card *card,
+ struct snd_soc_dai_link **dai_links, int *be_id)
+{
+ struct device *dev = card->dev;
+ int ret;
+
+ ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, "acp-dmic-codec",
+ 0, 1, // DMIC only supports capture
+ "acp-sof-dmic", platform_component->name,
+ ARRAY_SIZE(platform_component),
+ "dmic-codec", "dmic-hifi",
+ asoc_sdw_dmic_init, NULL);
+ if (ret)
+ return ret;
+
+ (*dai_links)++;
+
+ return 0;
+}
+
+static int sof_card_dai_links_create(struct snd_soc_card *card)
+{
+ struct device *dev = card->dev;
+ struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev);
+ int sdw_be_num = 0, dmic_num = 0;
+ struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
+ struct snd_soc_acpi_mach_params *mach_params = &mach->mach_params;
+ const struct snd_soc_acpi_link_adr *adr_link = mach_params->links;
+ struct snd_soc_codec_conf *codec_conf;
+ int codec_conf_num = 0;
+ bool group_generated[AMD_SDW_MAX_GROUPS] = { };
+ struct snd_soc_dai_link *dai_links;
+ struct asoc_sdw_codec_info *codec_info;
+ int num_links;
+ int i, j, be_id = 0;
+ int ret;
+
+ ret = get_dailink_info(dev, adr_link, &sdw_be_num, &codec_conf_num);
+ if (ret < 0) {
+ dev_err(dev, "failed to get sdw link info %d\n", ret);
+ return ret;
+ }
+
+ /* enable dmic */
+ if (sof_sdw_quirk & ASOC_SDW_ACP_DMIC || mach_params->dmic_num)
+ dmic_num = 1;
+
+ dev_dbg(dev, "sdw %d, dmic %d", sdw_be_num, dmic_num);
+
+ /* allocate BE dailinks */
+ num_links = sdw_be_num + dmic_num;
+ dai_links = devm_kcalloc(dev, num_links, sizeof(*dai_links), GFP_KERNEL);
+ if (!dai_links)
+ return -ENOMEM;
+
+ /* allocate codec conf, will be populated when dailinks are created */
+ codec_conf = devm_kcalloc(dev, codec_conf_num, sizeof(*codec_conf),
+ GFP_KERNEL);
+ if (!codec_conf)
+ return -ENOMEM;
+
+ card->dai_link = dai_links;
+ card->num_links = num_links;
+ card->codec_conf = codec_conf;
+ card->num_configs = codec_conf_num;
+
+ /* SDW */
+ if (!sdw_be_num)
+ goto DMIC;
+
+ for (; adr_link->num_adr; adr_link++) {
+ /*
+ * If there are two or more different devices on the same sdw link, we have to
+ * append the codec type to the dai link name to prevent duplicated dai link name.
+ * The same type devices on the same sdw link will be in the same
+ * snd_soc_acpi_adr_device array. They won't be described in different adr_links.
+ */
+ for (i = 0; i < adr_link->num_adr; i++) {
+ /* find codec info to get dai_num */
+ codec_info = asoc_sdw_find_codec_info_part(adr_link->adr_d[i].adr);
+ if (!codec_info)
+ return -EINVAL;
+ if (codec_info->dai_num > 1) {
+ ctx->append_dai_type = true;
+ goto out;
+ }
+ for (j = 0; j < i; j++) {
+ if ((SDW_PART_ID(adr_link->adr_d[i].adr) !=
+ SDW_PART_ID(adr_link->adr_d[j].adr)) ||
+ (SDW_MFG_ID(adr_link->adr_d[i].adr) !=
+ SDW_MFG_ID(adr_link->adr_d[j].adr))) {
+ ctx->append_dai_type = true;
+ goto out;
+ }
+ }
+ }
+ }
+out:
+
+ /* generate DAI links by each sdw link */
+ for (adr_link = mach_params->links ; adr_link->num_adr; adr_link++) {
+ for (i = 0; i < adr_link->num_adr; i++) {
+ const struct snd_soc_acpi_endpoint *endpoint;
+
+ endpoint = adr_link->adr_d[i].endpoints;
+
+ /* this group has been generated */
+ if (endpoint->aggregated &&
+ group_generated[endpoint->group_id])
+ continue;
+
+ /* find codec info to get dai_num */
+ codec_info = asoc_sdw_find_codec_info_part(adr_link->adr_d[i].adr);
+ if (!codec_info)
+ return -EINVAL;
+
+ for (j = 0; j < codec_info->dai_num ; j++) {
+ int current_be_id;
+
+ ret = create_sdw_dailink(card, &dai_links, adr_link,
+ &codec_conf, ¤t_be_id,
+ i, j);
+ if (ret < 0) {
+ dev_err(dev,
+ "failed to create dai link %d on 0x%x\n",
+ j, codec_info->part_id);
+ return ret;
+ }
+ /* Update the be_id to match the highest ID used for SDW link */
+ if (be_id < current_be_id)
+ be_id = current_be_id;
+ }
+
+ if (endpoint->aggregated)
+ group_generated[endpoint->group_id] = true;
+ }
+ }
+
+DMIC:
+ /* dmic */
+ if (dmic_num > 0) {
+ if (ctx->ignore_internal_dmic) {
+ dev_warn(dev, "Ignoring ACP DMIC\n");
+ } else {
+ be_id = SOC_SDW_DMIC_DAI_ID;
+ ret = create_dmic_dailinks(card, &dai_links, &be_id);
+ if (ret)
+ return ret;
+ }
+ }
+
+ WARN_ON(dai_links != card->dai_link + card->num_links);
+ return 0;
+}
+
+/* SoC card */
+static const char sdw_card_long_name[] = "AMD Soundwire SOF";
+
+static int mc_probe(struct platform_device *pdev)
+{
+ struct snd_soc_acpi_mach *mach = dev_get_platdata(&pdev->dev);
+ struct snd_soc_card *card;
+ struct amd_mc_ctx *amd_ctx;
+ struct asoc_sdw_mc_private *ctx;
+ int amp_num = 0, i;
+ int ret;
+
+ amd_ctx = devm_kzalloc(&pdev->dev, sizeof(*amd_ctx), GFP_KERNEL);
+ if (!amd_ctx)
+ return -ENOMEM;
+
+ amd_ctx->acp_rev = mach->mach_params.subsystem_rev;
+ amd_ctx->max_sdw_links = ACP63_SDW_MAX_LINKS;
+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+ ctx->codec_info_list_count = asoc_sdw_get_codec_info_list_count();
+ ctx->private = amd_ctx;
+ card = &ctx->card;
+ card->dev = &pdev->dev;
+ card->name = "amd-soundwire",
+ card->owner = THIS_MODULE,
+ card->late_probe = asoc_sdw_card_late_probe,
+
+ snd_soc_card_set_drvdata(card, ctx);
+
+ dmi_check_system(sof_sdw_quirk_table);
+
+ if (quirk_override != -1) {
+ dev_info(card->dev, "Overriding quirk 0x%lx => 0x%x\n",
+ sof_sdw_quirk, quirk_override);
+ sof_sdw_quirk = quirk_override;
+ }
+
+ log_quirks(card->dev);
+
+ ctx->mc_quirk = sof_sdw_quirk;
+ /* reset amp_num to ensure amp_num++ starts from 0 in each probe */
+ for (i = 0; i < ctx->codec_info_list_count; i++)
+ codec_info_list[i].amp_num = 0;
+
+ ret = sof_card_dai_links_create(card);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * 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 < ctx->codec_info_list_count; i++)
+ amp_num += codec_info_list[i].amp_num;
+
+ card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+ " cfg-amp:%d", amp_num);
+ if (!card->components)
+ return -ENOMEM;
+
+ card->long_name = sdw_card_long_name;
+
+ /* Register the card */
+ ret = devm_snd_soc_register_card(card->dev, card);
+ if (ret) {
+ dev_err_probe(card->dev, ret, "snd_soc_register_card failed %d\n", ret);
+ asoc_sdw_mc_dailink_exit_loop(card);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, card);
+
+ return ret;
+}
+
+static void mc_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ asoc_sdw_mc_dailink_exit_loop(card);
+}
+
+static const struct platform_device_id mc_id_table[] = {
+ { "amd_sof_sdw", },
+ {}
+};
+MODULE_DEVICE_TABLE(platform, mc_id_table);
+
+static struct platform_driver sof_sdw_driver = {
+ .driver = {
+ .name = "amd_sof_sdw",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = mc_probe,
+ .remove_new = mc_remove,
+ .id_table = mc_id_table,
+};
+
+module_platform_driver(sof_sdw_driver);
+
+MODULE_DESCRIPTION("ASoC AMD SoundWire Generic Machine driver");
+MODULE_AUTHOR("Vijendar Mukunda <Vijendar.Mukunda@amd.com");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:amd_sof_sdw");
+MODULE_IMPORT_NS(SND_SOC_SDW_UTILS);
new file mode 100644
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0-only
+ * Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserved
+ */
+
+/*
+ * soc_amd_sdw_common.h - prototypes for common helpers
+ */
+
+#ifndef SOC_AMD_SDW_COMMON_H
+#define SOC_AMD_SDW_COMMON_H
+
+#include <linux/bits.h>
+#include <linux/types.h>
+#include <sound/soc.h>
+#include <sound/soc_sdw_utils.h>
+
+#define ACP63_SDW_MAX_CPU_DAIS 8
+#define ACP63_SDW_MAX_LINKS 2
+
+#define AMD_SDW_MAX_GROUPS 9
+#define ACP63_PCI_REV 0x63
+#define SOC_JACK_JDSRC(quirk) ((quirk) & GENMASK(3, 0))
+#define ASOC_SDW_FOUR_SPK BIT(4)
+#define ASOC_SDW_ACP_DMIC BIT(5)
+
+#define AMD_SDW0 0
+#define AMD_SDW1 1
+#define ACP63_SW0_AUDIO0_TX 0
+#define ACP63_SW0_AUDIO1_TX 1
+#define ACP63_SW0_AUDIO2_TX 2
+
+#define ACP63_SW0_AUDIO0_RX 3
+#define ACP63_SW0_AUDIO1_RX 4
+#define ACP63_SW0_AUDIO2_RX 5
+
+#define ACP63_SW1_AUDIO0_TX 0
+#define ACP63_SW1_AUDIO0_RX 1
+
+struct amd_mc_ctx {
+ unsigned int acp_rev;
+ unsigned int max_sdw_links;
+};
+
+#endif