ASoC/SoundWire: improve suspend flows and use set_stream() instead of set_tdm_slots() for HDAudio

Merge series from Bard Liao <yung-chuan.liao@linux.intel.com>:

This series contains three topics.
1. SoundWire: Intel: remove pdm support
2. ASoC/SoundWire: dai: expand 'stream' concept beyond SoundWire
3. ASoC/SOF/SoundWire: fix suspend-resume on pause with dynamic pipelines

The topics are independent but the changes are dependent. So please
allow me to send them in one series.

drivers/soundwire/cadence_master.c

@@ -1178,9 +1178,6 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
 	cdns->pcm.num_bd = config.pcm_bd;
 	cdns->pcm.num_in = config.pcm_in;
 	cdns->pcm.num_out = config.pcm_out;
-	cdns->pdm.num_bd = config.pdm_bd;
-	cdns->pdm.num_in = config.pdm_in;
-	cdns->pdm.num_out = config.pdm_out;
 
 	/* Allocate PDIs for PCMs */
 	stream = &cdns->pcm;
@@ -1211,32 +1208,6 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
 	stream->num_pdi = stream->num_bd + stream->num_in + stream->num_out;
 	cdns->num_ports = stream->num_pdi;
 
-	/* Allocate PDIs for PDMs */
-	stream = &cdns->pdm;
-	ret = cdns_allocate_pdi(cdns, &stream->bd,
-				stream->num_bd, offset);
-	if (ret)
-		return ret;
-
-	offset += stream->num_bd;
-
-	ret = cdns_allocate_pdi(cdns, &stream->in,
-				stream->num_in, offset);
-	if (ret)
-		return ret;
-
-	offset += stream->num_in;
-
-	ret = cdns_allocate_pdi(cdns, &stream->out,
-				stream->num_out, offset);
-
-	if (ret)
-		return ret;
-
-	/* Update total number of PDM PDIs */
-	stream->num_pdi = stream->num_bd + stream->num_in + stream->num_out;
-	cdns->num_ports += stream->num_pdi;
-
 	return 0;
 }
 EXPORT_SYMBOL(sdw_cdns_pdi_init);
@@ -1681,7 +1652,7 @@ int sdw_cdns_probe(struct sdw_cdns *cdns)
 EXPORT_SYMBOL(sdw_cdns_probe);
 
 int cdns_set_sdw_stream(struct snd_soc_dai *dai,
-			void *stream, bool pcm, int direction)
+			void *stream, int direction)
 {
 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
 	struct sdw_cdns_dma_data *dma;
@@ -1705,10 +1676,7 @@ int cdns_set_sdw_stream(struct snd_soc_dai *dai,
 		if (!dma)
 			return -ENOMEM;
 
-		if (pcm)
 		dma->stream_type = SDW_STREAM_PCM;
-		else
-			dma->stream_type = SDW_STREAM_PDM;
 
 		dma->bus = &cdns->bus;
 		dma->link_id = cdns->instance;

drivers/soundwire/cadence_master.h

@@ -17,7 +17,7 @@
  * @h_ch_num: high channel for PDI
  * @ch_count: total channel count for PDI
  * @dir: data direction
- * @type: stream type, PDM or PCM
+ * @type: stream type, (only PCM supported)
  */
 struct sdw_cdns_pdi {
 	int num;
@@ -62,17 +62,11 @@ struct sdw_cdns_streams {
  * @pcm_bd: number of bidirectional PCM streams supported
  * @pcm_in: number of input PCM streams supported
  * @pcm_out: number of output PCM streams supported
- * @pdm_bd: number of bidirectional PDM streams supported
- * @pdm_in: number of input PDM streams supported
- * @pdm_out: number of output PDM streams supported
  */
 struct sdw_cdns_stream_config {
 	unsigned int pcm_bd;
 	unsigned int pcm_in;
 	unsigned int pcm_out;
-	unsigned int pdm_bd;
-	unsigned int pdm_in;
-	unsigned int pdm_out;
 };
 
 /**
@@ -86,6 +80,7 @@ struct sdw_cdns_stream_config {
  * @link_id: Master link id
  * @hw_params: hw_params to be applied in .prepare step
  * @suspended: status set when suspended, to be used in .prepare
+ * @paused: status set in .trigger, to be used in suspend
  */
 struct sdw_cdns_dma_data {
 	char *name;
@@ -96,6 +91,7 @@ struct sdw_cdns_dma_data {
 	int link_id;
 	struct snd_pcm_hw_params *hw_params;
 	bool suspended;
+	bool paused;
 };
 
 /**
@@ -109,7 +105,6 @@ struct sdw_cdns_dma_data {
  * @ports: Data ports
  * @num_ports: Total number of data ports
  * @pcm: PCM streams
- * @pdm: PDM streams
  * @registers: Cadence registers
  * @link_up: Link status
  * @msg_count: Messages sent on bus
@@ -127,7 +122,6 @@ struct sdw_cdns {
 	int num_ports;
 
 	struct sdw_cdns_streams pcm;
-	struct sdw_cdns_streams pdm;
 
 	int pdi_loopback_source;
 	int pdi_loopback_target;
@@ -186,7 +180,7 @@ cdns_xfer_msg_defer(struct sdw_bus *bus,
 int cdns_bus_conf(struct sdw_bus *bus, struct sdw_bus_params *params);
 
 int cdns_set_sdw_stream(struct snd_soc_dai *dai,
-			void *stream, bool pcm, int direction);
+			void *stream, int direction);
 
 void sdw_cdns_check_self_clearing_bits(struct sdw_cdns *cdns, const char *string,
 				       bool initial_delay, int reset_iterations);

drivers/soundwire/intel.c

@@ -564,7 +564,7 @@ static void intel_pdi_init(struct sdw_intel *sdw,
 {
 	void __iomem *shim = sdw->link_res->shim;
 	unsigned int link_id = sdw->instance;
-	int pcm_cap, pdm_cap;
+	int pcm_cap;
 
 	/* PCM Stream Capability */
 	pcm_cap = intel_readw(shim, SDW_SHIM_PCMSCAP(link_id));
@@ -575,26 +575,15 @@ static void intel_pdi_init(struct sdw_intel *sdw,
 
 	dev_dbg(sdw->cdns.dev, "PCM cap bd:%d in:%d out:%d\n",
 		config->pcm_bd, config->pcm_in, config->pcm_out);
-
-	/* PDM Stream Capability */
-	pdm_cap = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id));
-
-	config->pdm_bd = FIELD_GET(SDW_SHIM_PDMSCAP_BSS, pdm_cap);
-	config->pdm_in = FIELD_GET(SDW_SHIM_PDMSCAP_ISS, pdm_cap);
-	config->pdm_out = FIELD_GET(SDW_SHIM_PDMSCAP_OSS, pdm_cap);
-
-	dev_dbg(sdw->cdns.dev, "PDM cap bd:%d in:%d out:%d\n",
-		config->pdm_bd, config->pdm_in, config->pdm_out);
 }
 
 static int
-intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm)
+intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num)
 {
 	void __iomem *shim = sdw->link_res->shim;
 	unsigned int link_id = sdw->instance;
 	int count;
 
-	if (pcm) {
 	count = intel_readw(shim, SDW_SHIM_PCMSYCHC(link_id, pdi_num));
 
 	/*
@@ -606,11 +595,6 @@ intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm)
 	if (pdi_num == 2)
 		count = 7;
 
-	} else {
-		count = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id));
-		count = FIELD_GET(SDW_SHIM_PDMSCAP_CPSS, count);
-	}
-
 	/* zero based values for channel count in register */
 	count++;
 
@@ -620,12 +604,12 @@ intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm)
 static int intel_pdi_get_ch_update(struct sdw_intel *sdw,
 				   struct sdw_cdns_pdi *pdi,
 				   unsigned int num_pdi,
-				   unsigned int *num_ch, bool pcm)
+				   unsigned int *num_ch)
 {
 	int i, ch_count = 0;
 
 	for (i = 0; i < num_pdi; i++) {
-		pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num, pcm);
+		pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num);
 		ch_count += pdi->ch_count;
 		pdi++;
 	}
@@ -635,25 +619,23 @@ static int intel_pdi_get_ch_update(struct sdw_intel *sdw,
 }
 
 static int intel_pdi_stream_ch_update(struct sdw_intel *sdw,
-				      struct sdw_cdns_streams *stream, bool pcm)
+				      struct sdw_cdns_streams *stream)
 {
 	intel_pdi_get_ch_update(sdw, stream->bd, stream->num_bd,
-				&stream->num_ch_bd, pcm);
+				&stream->num_ch_bd);
 
 	intel_pdi_get_ch_update(sdw, stream->in, stream->num_in,
-				&stream->num_ch_in, pcm);
+				&stream->num_ch_in);
 
 	intel_pdi_get_ch_update(sdw, stream->out, stream->num_out,
-				&stream->num_ch_out, pcm);
+				&stream->num_ch_out);
 
 	return 0;
 }
 
 static int intel_pdi_ch_update(struct sdw_intel *sdw)
 {
-	/* First update PCM streams followed by PDM streams */
-	intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm, true);
-	intel_pdi_stream_ch_update(sdw, &sdw->cdns.pdm, false);
+	intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm);
 
 	return 0;
 }
@@ -711,7 +693,7 @@ intel_pdi_alh_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi)
 }
 
 static int intel_params_stream(struct sdw_intel *sdw,
-			       struct snd_pcm_substream *substream,
+			       int stream,
 			       struct snd_soc_dai *dai,
 			       struct snd_pcm_hw_params *hw_params,
 			       int link_id, int alh_stream_id)
@@ -719,7 +701,7 @@ static int intel_params_stream(struct sdw_intel *sdw,
 	struct sdw_intel_link_res *res = sdw->link_res;
 	struct sdw_intel_stream_params_data params_data;
 
-	params_data.substream = substream;
+	params_data.stream = stream; /* direction */
 	params_data.dai = dai;
 	params_data.hw_params = hw_params;
 	params_data.link_id = link_id;
@@ -732,14 +714,14 @@ static int intel_params_stream(struct sdw_intel *sdw,
 }
 
 static int intel_free_stream(struct sdw_intel *sdw,
-			     struct snd_pcm_substream *substream,
+			     int stream,
 			     struct snd_soc_dai *dai,
 			     int link_id)
 {
 	struct sdw_intel_link_res *res = sdw->link_res;
 	struct sdw_intel_stream_free_data free_data;
 
-	free_data.substream = substream;
+	free_data.stream = stream; /* direction */
 	free_data.dai = dai;
 	free_data.link_id = link_id;
 
@@ -840,7 +822,6 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	struct sdw_port_config *pconfig;
 	int ch, dir;
 	int ret;
-	bool pcm = true;
 
 	dma = snd_soc_dai_get_dma_data(dai, substream);
 	if (!dma)
@@ -852,13 +833,7 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	else
 		dir = SDW_DATA_DIR_TX;
 
-	if (dma->stream_type == SDW_STREAM_PDM)
-		pcm = false;
-
-	if (pcm)
 	pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id);
-	else
-		pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pdm, ch, dir, dai->id);
 
 	if (!pdi) {
 		ret = -EINVAL;
@@ -871,12 +846,13 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	sdw_cdns_config_stream(cdns, ch, dir, pdi);
 
 	/* store pdi and hw_params, may be needed in prepare step */
+	dma->paused = false;
 	dma->suspended = false;
 	dma->pdi = pdi;
 	dma->hw_params = params;
 
 	/* Inform DSP about PDI stream number */
-	ret = intel_params_stream(sdw, substream, dai, params,
+	ret = intel_params_stream(sdw, substream->stream, dai, params,
 				  sdw->instance,
 				  pdi->intel_alh_id);
 	if (ret)
@@ -887,12 +863,7 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	sconfig.frame_rate = params_rate(params);
 	sconfig.type = dma->stream_type;
 
-	if (dma->stream_type == SDW_STREAM_PDM) {
-		sconfig.frame_rate *= 50;
-		sconfig.bps = 1;
-	} else {
 	sconfig.bps = snd_pcm_format_width(params_format(params));
-	}
 
 	/* Port configuration */
 	pconfig = kzalloc(sizeof(*pconfig), GFP_KERNEL);
@@ -953,7 +924,7 @@ static int intel_prepare(struct snd_pcm_substream *substream,
 		sdw_cdns_config_stream(cdns, ch, dir, dma->pdi);
 
 		/* Inform DSP about PDI stream number */
-		ret = intel_params_stream(sdw, substream, dai,
+		ret = intel_params_stream(sdw, substream->stream, dai,
 					  dma->hw_params,
 					  sdw->instance,
 					  dma->pdi->intel_alh_id);
@@ -987,7 +958,7 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
 		return ret;
 	}
 
-	ret = intel_free_stream(sdw, substream, dai, sdw->instance);
+	ret = intel_free_stream(sdw, substream->stream, dai, sdw->instance);
 	if (ret < 0) {
 		dev_err(dai->dev, "intel_free_stream: failed %d\n", ret);
 		return ret;
@@ -1008,55 +979,111 @@ static void intel_shutdown(struct snd_pcm_substream *substream,
 	pm_runtime_put_autosuspend(cdns->dev);
 }
 
-static int intel_component_dais_suspend(struct snd_soc_component *component)
+static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
+				    void *stream, int direction)
+{
+	return cdns_set_sdw_stream(dai, stream, direction);
+}
+
+static void *intel_get_sdw_stream(struct snd_soc_dai *dai,
+				  int direction)
 {
 	struct sdw_cdns_dma_data *dma;
-	struct snd_soc_dai *dai;
 
-	for_each_component_dais(component, dai) {
-		/*
-		 * we don't have a .suspend dai_ops, and we don't have access
-		 * to the substream, so let's mark both capture and playback
-		 * DMA contexts as suspended
-		 */
+	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
 		dma = dai->playback_dma_data;
-		if (dma)
-			dma->suspended = true;
-
+	else
 		dma = dai->capture_dma_data;
-		if (dma)
-			dma->suspended = true;
-	}
 
-	return 0;
-}
+	if (!dma)
+		return ERR_PTR(-EINVAL);
 
-static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
-				    void *stream, int direction)
-{
-	return cdns_set_sdw_stream(dai, stream, true, direction);
+	return dma->stream;
 }
 
-static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai,
-				    void *stream, int direction)
+static int intel_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
 {
-	return cdns_set_sdw_stream(dai, stream, false, direction);
+	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
+	struct sdw_intel *sdw = cdns_to_intel(cdns);
+	struct sdw_cdns_dma_data *dma;
+	int ret = 0;
+
+	dma = snd_soc_dai_get_dma_data(dai, substream);
+	if (!dma) {
+		dev_err(dai->dev, "failed to get dma data in %s\n",
+			__func__);
+		return -EIO;
+	}
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+
+		/*
+		 * The .prepare callback is used to deal with xruns and resume operations.
+		 * In the case of xruns, the DMAs and SHIM registers cannot be touched,
+		 * but for resume operations the DMAs and SHIM registers need to be initialized.
+		 * the .trigger callback is used to track the suspend case only.
+		 */
+
+		dma->suspended = true;
+
+		ret = intel_free_stream(sdw, substream->stream, dai, sdw->instance);
+		break;
+
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		dma->paused = true;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		dma->paused = false;
+		break;
+	default:
+		break;
+	}
+
+	return ret;
 }
 
-static void *intel_get_sdw_stream(struct snd_soc_dai *dai,
-				  int direction)
+static int intel_component_dais_suspend(struct snd_soc_component *component)
 {
+	struct snd_soc_dai *dai;
+
+	/*
+	 * In the corner case where a SUSPEND happens during a PAUSE, the ALSA core
+	 * does not throw the TRIGGER_SUSPEND. This leaves the DAIs in an unbalanced state.
+	 * Since the component suspend is called last, we can trap this corner case
+	 * and force the DAIs to release their resources.
+	 */
+	for_each_component_dais(component, dai) {
+		struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
+		struct sdw_intel *sdw = cdns_to_intel(cdns);
 		struct sdw_cdns_dma_data *dma;
+		int stream;
+		int ret;
 
-	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
 		dma = dai->playback_dma_data;
-	else
+		stream = SNDRV_PCM_STREAM_PLAYBACK;
+		if (!dma) {
 			dma = dai->capture_dma_data;
+			stream = SNDRV_PCM_STREAM_CAPTURE;
+		}
 
 		if (!dma)
-		return ERR_PTR(-EINVAL);
+			continue;
 
-	return dma->stream;
+		if (dma->suspended)
+			continue;
+
+		if (dma->paused) {
+			dma->suspended = true;
+
+			ret = intel_free_stream(sdw, stream, dai, sdw->instance);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	return 0;
 }
 
 static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
@@ -1064,19 +1091,10 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
 	.hw_params = intel_hw_params,
 	.prepare = intel_prepare,
 	.hw_free = intel_hw_free,
+	.trigger = intel_trigger,
 	.shutdown = intel_shutdown,
-	.set_sdw_stream = intel_pcm_set_sdw_stream,
-	.get_sdw_stream = intel_get_sdw_stream,
-};
-
-static const struct snd_soc_dai_ops intel_pdm_dai_ops = {
-	.startup = intel_startup,
-	.hw_params = intel_hw_params,
-	.prepare = intel_prepare,
-	.hw_free = intel_hw_free,
-	.shutdown = intel_shutdown,
-	.set_sdw_stream = intel_pdm_set_sdw_stream,
-	.get_sdw_stream = intel_get_sdw_stream,
+	.set_stream = intel_pcm_set_sdw_stream,
+	.get_stream = intel_get_sdw_stream,
 };
 
 static const struct snd_soc_component_driver dai_component = {
@@ -1087,7 +1105,7 @@ static const struct snd_soc_component_driver dai_component = {
 static int intel_create_dai(struct sdw_cdns *cdns,
 			    struct snd_soc_dai_driver *dais,
 			    enum intel_pdi_type type,
-			    u32 num, u32 off, u32 max_ch, bool pcm)
+			    u32 num, u32 off, u32 max_ch)
 {
 	int i;
 
@@ -1116,10 +1134,7 @@ static int intel_create_dai(struct sdw_cdns *cdns,
 			dais[i].capture.formats = SNDRV_PCM_FMTBIT_S16_LE;
 		}
 
-		if (pcm)
 		dais[i].ops = &intel_pcm_dai_ops;
-		else
-			dais[i].ops = &intel_pdm_dai_ops;
 	}
 
 	return 0;
@@ -1133,7 +1148,7 @@ static int intel_register_dai(struct sdw_intel *sdw)
 	int num_dai, ret, off = 0;
 
 	/* DAIs are created based on total number of PDIs supported */
-	num_dai = cdns->pcm.num_pdi + cdns->pdm.num_pdi;
+	num_dai = cdns->pcm.num_pdi;
 
 	dais = devm_kcalloc(cdns->dev, num_dai, sizeof(*dais), GFP_KERNEL);
 	if (!dais)
@@ -1143,39 +1158,19 @@ static int intel_register_dai(struct sdw_intel *sdw)
 	stream = &cdns->pcm;
 
 	ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in,
-			       off, stream->num_ch_in, true);
+			       off, stream->num_ch_in);
 	if (ret)
 		return ret;
 
 	off += cdns->pcm.num_in;
 	ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pcm.num_out,
-			       off, stream->num_ch_out, true);
+			       off, stream->num_ch_out);
 	if (ret)
 		return ret;
 
 	off += cdns->pcm.num_out;
 	ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pcm.num_bd,
-			       off, stream->num_ch_bd, true);
-	if (ret)
-		return ret;
-
-	/* Create PDM DAIs */
-	stream = &cdns->pdm;
-	off += cdns->pcm.num_bd;
-	ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pdm.num_in,
-			       off, stream->num_ch_in, false);
-	if (ret)
-		return ret;
-
-	off += cdns->pdm.num_in;
-	ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pdm.num_out,
-			       off, stream->num_ch_out, false);
-	if (ret)
-		return ret;
-
-	off += cdns->pdm.num_out;
-	ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pdm.num_bd,
-			       off, stream->num_ch_bd, false);
+			       off, stream->num_ch_bd);
 	if (ret)
 		return ret;
 
@@ -1549,7 +1544,7 @@ static int __maybe_unused intel_pm_prepare(struct device *dev)
 	struct sdw_intel *sdw = cdns_to_intel(cdns);
 	struct sdw_bus *bus = &cdns->bus;
 	u32 clock_stop_quirks;
-	int ret = 0;
+	int ret;
 
 	if (bus->prop.hw_disabled || !sdw->startup_done) {
 		dev_dbg(dev, "SoundWire master %d is disabled or not-started, ignoring\n",

drivers/soundwire/qcom.c

@@ -1024,7 +1024,7 @@ static int qcom_swrm_startup(struct snd_pcm_substream *substream,
 	ctrl->sruntime[dai->id] = sruntime;
 
 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
-		ret = snd_soc_dai_set_sdw_stream(codec_dai, sruntime,
+		ret = snd_soc_dai_set_stream(codec_dai, sruntime,
 					     substream->stream);
 		if (ret < 0 && ret != -ENOTSUPP) {
 			dev_err(dai->dev, "Failed to set sdw stream on %s\n",
@@ -1051,8 +1051,8 @@ static const struct snd_soc_dai_ops qcom_swrm_pdm_dai_ops = {
 	.hw_free = qcom_swrm_hw_free,
 	.startup = qcom_swrm_startup,
 	.shutdown = qcom_swrm_shutdown,
-	.set_sdw_stream = qcom_swrm_set_sdw_stream,
-	.get_sdw_stream = qcom_swrm_get_sdw_stream,
+	.set_stream = qcom_swrm_set_sdw_stream,
+	.get_stream = qcom_swrm_get_sdw_stream,
 };
 
 static const struct snd_soc_component_driver qcom_swrm_dai_component = {

drivers/soundwire/stream.c

@@ -1863,7 +1863,7 @@ static int set_stream(struct snd_pcm_substream *substream,
 
 	/* Set stream pointer on all DAIs */
 	for_each_rtd_dais(rtd, i, dai) {
-		ret = snd_soc_dai_set_sdw_stream(dai, sdw_stream, substream->stream);
+		ret = snd_soc_dai_set_stream(dai, sdw_stream, substream->stream);
 		if (ret < 0) {
 			dev_err(rtd->dev, "failed to set stream pointer on dai %s\n", dai->name);
 			break;
@@ -1934,7 +1934,7 @@ void sdw_shutdown_stream(void *sdw_substream)
 	/* Find stream from first CPU DAI */
 	dai = asoc_rtd_to_cpu(rtd, 0);
 
-	sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream);
+	sdw_stream = snd_soc_dai_get_stream(dai, substream->stream);
 
 	if (IS_ERR(sdw_stream)) {
 		dev_err(rtd->dev, "no stream found for DAI %s\n", dai->name);

include/linux/soundwire/sdw_intel.h

@@ -92,7 +92,7 @@
  * firmware.
  */
 struct sdw_intel_stream_params_data {
-	struct snd_pcm_substream *substream;
+	int stream;
 	struct snd_soc_dai *dai;
 	struct snd_pcm_hw_params *hw_params;
 	int link_id;
@@ -105,7 +105,7 @@ struct sdw_intel_stream_params_data {
  * firmware.
  */
 struct sdw_intel_stream_free_data {
-	struct snd_pcm_substream *substream;
+	int stream;
 	struct snd_soc_dai *dai;
 	int link_id;
 };

include/sound/soc-dai.h

@@ -295,9 +295,9 @@ struct snd_soc_dai_ops {
 			unsigned int *rx_num, unsigned int *rx_slot);
 	int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
 
-	int (*set_sdw_stream)(struct snd_soc_dai *dai,
+	int (*set_stream)(struct snd_soc_dai *dai,
 			  void *stream, int direction);
-	void *(*get_sdw_stream)(struct snd_soc_dai *dai, int direction);
+	void *(*get_stream)(struct snd_soc_dai *dai, int direction);
 
 	/*
 	 * DAI digital mute - optional.
@@ -515,42 +515,42 @@ static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
 }
 
 /**
- * snd_soc_dai_set_sdw_stream() - Configures a DAI for SDW stream operation
+ * snd_soc_dai_set_stream() - Configures a DAI for stream operation
  * @dai: DAI
- * @stream: STREAM
+ * @stream: STREAM (opaque structure depending on DAI type)
  * @direction: Stream direction(Playback/Capture)
- * SoundWire subsystem doesn't have a notion of direction and we reuse
+ * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
  * the ASoC stream direction to configure sink/source ports.
  * Playback maps to source ports and Capture for sink ports.
  *
  * This should be invoked with NULL to clear the stream set previously.
  * Returns 0 on success, a negative error code otherwise.
  */
-static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai,
+static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
 					 void *stream, int direction)
 {
-	if (dai->driver->ops->set_sdw_stream)
-		return dai->driver->ops->set_sdw_stream(dai, stream, direction);
+	if (dai->driver->ops->set_stream)
+		return dai->driver->ops->set_stream(dai, stream, direction);
 	else
 		return -ENOTSUPP;
 }
 
 /**
- * snd_soc_dai_get_sdw_stream() - Retrieves SDW stream from DAI
+ * snd_soc_dai_get_stream() - Retrieves stream from DAI
  * @dai: DAI
  * @direction: Stream direction(Playback/Capture)
  *
  * This routine only retrieves that was previously configured
- * with snd_soc_dai_get_sdw_stream()
+ * with snd_soc_dai_get_stream()
  *
  * Returns pointer to stream or an ERR_PTR value, e.g.
  * ERR_PTR(-ENOTSUPP) if callback is not supported;
  */
-static inline void *snd_soc_dai_get_sdw_stream(struct snd_soc_dai *dai,
+static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
 					   int direction)
 {
-	if (dai->driver->ops->get_sdw_stream)
-		return dai->driver->ops->get_sdw_stream(dai, direction);
+	if (dai->driver->ops->get_stream)
+		return dai->driver->ops->get_stream(dai, direction);
 	else
 		return ERR_PTR(-ENOTSUPP);
 }

sound/soc/codecs/hdac_hda.c

@@ -46,9 +46,8 @@ static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
 				  struct snd_soc_dai *dai);
 static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
 				struct snd_soc_dai *dai);
-static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai,
-				     unsigned int tx_mask, unsigned int rx_mask,
-				     int slots, int slot_width);
+static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai, void *stream,
+				   int direction);
 static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
 						 struct snd_soc_dai *dai);
 
@@ -58,7 +57,7 @@ static const struct snd_soc_dai_ops hdac_hda_dai_ops = {
 	.prepare = hdac_hda_dai_prepare,
 	.hw_params = hdac_hda_dai_hw_params,
 	.hw_free = hdac_hda_dai_hw_free,
-	.set_tdm_slot = hdac_hda_dai_set_tdm_slot,
+	.set_stream = hdac_hda_dai_set_stream,
 };
 
 static struct snd_soc_dai_driver hdac_hda_dais[] = {
@@ -180,21 +179,22 @@ static struct snd_soc_dai_driver hdac_hda_dais[] = {
 
 };
 
-static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai,
-				     unsigned int tx_mask, unsigned int rx_mask,
-				     int slots, int slot_width)
+static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai,
+				   void *stream, int direction)
 {
 	struct snd_soc_component *component = dai->component;
 	struct hdac_hda_priv *hda_pvt;
 	struct hdac_hda_pcm *pcm;
+	struct hdac_stream *hstream;
+
+	if (!stream)
+		return -EINVAL;
 
 	hda_pvt = snd_soc_component_get_drvdata(component);
 	pcm = &hda_pvt->pcm[dai->id];
+	hstream = (struct hdac_stream *)stream;
 
-	if (tx_mask)
-		pcm->stream_tag[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask;
-	else
-		pcm->stream_tag[SNDRV_PCM_STREAM_CAPTURE] = rx_mask;
+	pcm->stream_tag[direction] = hstream->stream_tag;
 
 	return 0;
 }

sound/soc/codecs/max98373-sdw.c

@@ -741,7 +741,7 @@ static int max98373_sdw_set_tdm_slot(struct snd_soc_dai *dai,
 static const struct snd_soc_dai_ops max98373_dai_sdw_ops = {
 	.hw_params = max98373_sdw_dai_hw_params,
 	.hw_free = max98373_pcm_hw_free,
-	.set_sdw_stream = max98373_set_sdw_stream,
+	.set_stream = max98373_set_sdw_stream,
 	.shutdown = max98373_shutdown,
 	.set_tdm_slot = max98373_sdw_set_tdm_slot,
 };

sound/soc/codecs/rt1308-sdw.c

@@ -613,7 +613,7 @@ static const struct snd_soc_component_driver soc_component_sdw_rt1308 = {
 static const struct snd_soc_dai_ops rt1308_aif_dai_ops = {
 	.hw_params = rt1308_sdw_hw_params,
 	.hw_free	= rt1308_sdw_pcm_hw_free,
-	.set_sdw_stream	= rt1308_set_sdw_stream,
+	.set_stream	= rt1308_set_sdw_stream,
 	.shutdown	= rt1308_sdw_shutdown,
 	.set_tdm_slot	= rt1308_sdw_set_tdm_slot,
 };

sound/soc/codecs/rt1316-sdw.c

@@ -602,7 +602,7 @@ static const struct snd_soc_component_driver soc_component_sdw_rt1316 = {
 static const struct snd_soc_dai_ops rt1316_aif_dai_ops = {
 	.hw_params = rt1316_sdw_hw_params,
 	.hw_free	= rt1316_sdw_pcm_hw_free,
-	.set_sdw_stream	= rt1316_set_sdw_stream,
+	.set_stream	= rt1316_set_sdw_stream,
 	.shutdown	= rt1316_sdw_shutdown,
 };
 

sound/soc/codecs/rt5682-sdw.c

@@ -272,7 +272,7 @@ static int rt5682_sdw_hw_free(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops rt5682_sdw_ops = {
 	.hw_params	= rt5682_sdw_hw_params,
 	.hw_free	= rt5682_sdw_hw_free,
-	.set_sdw_stream	= rt5682_set_sdw_stream,
+	.set_stream	= rt5682_set_sdw_stream,
 	.shutdown	= rt5682_sdw_shutdown,
 };
 

sound/soc/codecs/rt700.c

@@ -1005,7 +1005,7 @@ static int rt700_pcm_hw_free(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops rt700_ops = {
 	.hw_params	= rt700_pcm_hw_params,
 	.hw_free	= rt700_pcm_hw_free,
-	.set_sdw_stream	= rt700_set_sdw_stream,
+	.set_stream	= rt700_set_sdw_stream,
 	.shutdown	= rt700_shutdown,
 };
 

sound/soc/codecs/rt711-sdca.c

@@ -1358,7 +1358,7 @@ static int rt711_sdca_pcm_hw_free(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops rt711_sdca_ops = {
 	.hw_params	= rt711_sdca_pcm_hw_params,
 	.hw_free	= rt711_sdca_pcm_hw_free,
-	.set_sdw_stream	= rt711_sdca_set_sdw_stream,
+	.set_stream	= rt711_sdca_set_sdw_stream,
 	.shutdown	= rt711_sdca_shutdown,
 };
 

sound/soc/codecs/rt711.c

@@ -1089,7 +1089,7 @@ static int rt711_pcm_hw_free(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops rt711_ops = {
 	.hw_params	= rt711_pcm_hw_params,
 	.hw_free	= rt711_pcm_hw_free,
-	.set_sdw_stream	= rt711_set_sdw_stream,
+	.set_stream	= rt711_set_sdw_stream,
 	.shutdown	= rt711_shutdown,
 };
 

sound/soc/codecs/rt715-sdca.c

@@ -938,7 +938,7 @@ static int rt715_sdca_pcm_hw_free(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops rt715_sdca_ops = {
 	.hw_params	= rt715_sdca_pcm_hw_params,
 	.hw_free	= rt715_sdca_pcm_hw_free,
-	.set_sdw_stream	= rt715_sdca_set_sdw_stream,
+	.set_stream	= rt715_sdca_set_sdw_stream,
 	.shutdown	= rt715_sdca_shutdown,
 };
 

sound/soc/codecs/rt715.c

@@ -909,7 +909,7 @@ static int rt715_pcm_hw_free(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops rt715_ops = {
 	.hw_params	= rt715_pcm_hw_params,
 	.hw_free	= rt715_pcm_hw_free,
-	.set_sdw_stream	= rt715_set_sdw_stream,
+	.set_stream	= rt715_set_sdw_stream,
 	.shutdown	= rt715_shutdown,
 };
 

sound/soc/codecs/sdw-mockup.c

@@ -138,7 +138,7 @@ static int sdw_mockup_pcm_hw_free(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops sdw_mockup_ops = {
 	.hw_params	= sdw_mockup_pcm_hw_params,
 	.hw_free	= sdw_mockup_pcm_hw_free,
-	.set_sdw_stream	= sdw_mockup_set_sdw_stream,
+	.set_stream	= sdw_mockup_set_sdw_stream,
 	.shutdown	= sdw_mockup_shutdown,
 };
 

sound/soc/codecs/wcd938x.c

@@ -4285,7 +4285,7 @@ static int wcd938x_codec_set_sdw_stream(struct snd_soc_dai *dai,
 static const struct snd_soc_dai_ops wcd938x_sdw_dai_ops = {
 	.hw_params = wcd938x_codec_hw_params,
 	.hw_free = wcd938x_codec_free,
-	.set_sdw_stream = wcd938x_codec_set_sdw_stream,
+	.set_stream = wcd938x_codec_set_sdw_stream,
 };
 
 static struct snd_soc_dai_driver wcd938x_dais[] = {

sound/soc/codecs/wsa881x.c

@@ -1018,7 +1018,7 @@ static const struct snd_soc_dai_ops wsa881x_dai_ops = {
 	.hw_params = wsa881x_hw_params,
 	.hw_free = wsa881x_hw_free,
 	.mute_stream = wsa881x_digital_mute,
-	.set_sdw_stream = wsa881x_set_sdw_stream,
+	.set_stream = wsa881x_set_sdw_stream,
 };
 
 static struct snd_soc_dai_driver wsa881x_dais[] = {

sound/soc/intel/boards/sof_sdw.c

@@ -347,7 +347,7 @@ int sdw_prepare(struct snd_pcm_substream *substream)
 	/* Find stream from first CPU DAI */
 	dai = asoc_rtd_to_cpu(rtd, 0);
 
-	sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream);
+	sdw_stream = snd_soc_dai_get_stream(dai, substream->stream);
 
 	if (IS_ERR(sdw_stream)) {
 		dev_err(rtd->dev, "no stream found for DAI %s", dai->name);
@@ -367,7 +367,7 @@ int sdw_trigger(struct snd_pcm_substream *substream, int cmd)
 	/* Find stream from first CPU DAI */
 	dai = asoc_rtd_to_cpu(rtd, 0);
 
-	sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream);
+	sdw_stream = snd_soc_dai_get_stream(dai, substream->stream);
 
 	if (IS_ERR(sdw_stream)) {
 		dev_err(rtd->dev, "no stream found for DAI %s", dai->name);
@@ -406,7 +406,7 @@ int sdw_hw_free(struct snd_pcm_substream *substream)
 	/* Find stream from first CPU DAI */
 	dai = asoc_rtd_to_cpu(rtd, 0);
 
-	sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream);
+	sdw_stream = snd_soc_dai_get_stream(dai, substream->stream);
 
 	if (IS_ERR(sdw_stream)) {
 		dev_err(rtd->dev, "no stream found for DAI %s", dai->name);

sound/soc/intel/skylake/skl-pcm.c

@@ -562,11 +562,8 @@ static int skl_link_hw_params(struct snd_pcm_substream *substream,
 
 	stream_tag = hdac_stream(link_dev)->stream_tag;
 
-	/* set the stream tag in the codec dai dma params  */
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		snd_soc_dai_set_tdm_slot(codec_dai, stream_tag, 0, 0, 0);
-	else
-		snd_soc_dai_set_tdm_slot(codec_dai, 0, stream_tag, 0, 0);
+	/* set the hdac_stream in the codec dai */
+	snd_soc_dai_set_stream(codec_dai, hdac_stream(link_dev), substream->stream);
 
 	p_params.s_fmt = snd_pcm_format_width(params_format(params));
 	p_params.ch = params_channels(params);

sound/soc/qcom/sdm845.c

@@ -57,7 +57,7 @@ static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream,
 	int ret = 0, i;
 
 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
-		sruntime = snd_soc_dai_get_sdw_stream(codec_dai,
+		sruntime = snd_soc_dai_get_stream(codec_dai,
 						  substream->stream);
 		if (sruntime != ERR_PTR(-ENOTSUPP))
 			pdata->sruntime[cpu_dai->id] = sruntime;

sound/soc/qcom/sm8250.c

@@ -136,7 +136,7 @@ static int sm8250_snd_hw_params(struct snd_pcm_substream *substream,
 	case TX_CODEC_DMA_TX_2:
 	case TX_CODEC_DMA_TX_3:
 		for_each_rtd_codec_dais(rtd, i, codec_dai) {
-			sruntime = snd_soc_dai_get_sdw_stream(codec_dai,
+			sruntime = snd_soc_dai_get_stream(codec_dai,
 							  substream->stream);
 			if (sruntime != ERR_PTR(-ENOTSUPP))
 				pdata->sruntime[cpu_dai->id] = sruntime;

sound/soc/sof/intel/hda-dai.c

@@ -243,11 +243,8 @@ static int hda_link_hw_params(struct snd_pcm_substream *substream,
 	if (!link)
 		return -EINVAL;
 
-	/* set the stream tag in the codec dai dma params */
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		snd_soc_dai_set_tdm_slot(codec_dai, stream_tag, 0, 0, 0);
-	else
-		snd_soc_dai_set_tdm_slot(codec_dai, 0, stream_tag, 0, 0);
+	/* set the hdac_stream in the codec dai */
+	snd_soc_dai_set_stream(codec_dai, hdac_stream(link_dev), substream->stream);
 
 	p_params.s_fmt = snd_pcm_format_width(params_format(params));
 	p_params.ch = params_channels(params);

sound/soc/sof/intel/hda.c

@@ -184,15 +184,11 @@ static int sdw_dai_config_ipc(struct snd_sof_dev *sdev,
 static int sdw_params_stream(struct device *dev,
 			     struct sdw_intel_stream_params_data *params_data)
 {
-	struct snd_pcm_substream *substream = params_data->substream;
 	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
 	struct snd_soc_dai *d = params_data->dai;
 	struct snd_soc_dapm_widget *w;
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		w = d->playback_widget;
-	else
-		w = d->capture_widget;
+	w = snd_soc_dai_get_widget(d, params_data->stream);
 
 	return sdw_dai_config_ipc(sdev, w, params_data->link_id, params_data->alh_stream_id,
 				  d->id, true);
@@ -201,15 +197,11 @@ static int sdw_params_stream(struct device *dev,
 static int sdw_free_stream(struct device *dev,
 			   struct sdw_intel_stream_free_data *free_data)
 {
-	struct snd_pcm_substream *substream = free_data->substream;
 	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
 	struct snd_soc_dai *d = free_data->dai;
 	struct snd_soc_dapm_widget *w;
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		w = d->playback_widget;
-	else
-		w = d->capture_widget;
+	w = snd_soc_dai_get_widget(d, free_data->stream);
 
 	/* send invalid stream_id */
 	return sdw_dai_config_ipc(sdev, w, free_data->link_id, 0xFFFF, d->id, false);