ASoC: SOF: change comp_dai to a pointer in struct snd_sof_dai

This will avoid having to add the extended data for DAI components during
sof_widget_setup() as an extra step.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220307181111.49392-11-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/pcm.c

@@ -717,7 +717,7 @@ int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_pa
 	/* read format from topology */
 	snd_mask_none(fmt);
 
-	switch (dai->comp_dai.config.frame_fmt) {
+	switch (dai->comp_dai->config.frame_fmt) {
 	case SOF_IPC_FRAME_S16_LE:
 		snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
 		break;
@@ -752,10 +752,10 @@ int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_pa
 		break;
 	case SOF_DAI_INTEL_DMIC:
 		/* DMIC only supports 16 or 32 bit formats */
-		if (dai->comp_dai.config.frame_fmt == SOF_IPC_FRAME_S24_4LE) {
+		if (dai->comp_dai->config.frame_fmt == SOF_IPC_FRAME_S24_4LE) {
 			dev_err(component->dev,
 				"error: invalid fmt %d for DAI type %d\n",
-				dai->comp_dai.config.frame_fmt,
+				dai->comp_dai->config.frame_fmt,
 				dai->dai_config->type);
 		}
 		break;

sound/soc/sof/sof-audio.c

@@ -170,7 +170,6 @@ int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
 	struct sof_ipc_cmd_hdr *hdr;
 	struct sof_ipc_comp *comp;
 	struct snd_sof_dai *dai;
-	size_t ipc_size;
 	int ret;
 
 	/* skip if there is no private data */
@@ -192,23 +191,12 @@ int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget)
 	switch (swidget->id) {
 	case snd_soc_dapm_dai_in:
 	case snd_soc_dapm_dai_out:
-		ipc_size = sizeof(struct sof_ipc_comp_dai) + sizeof(struct sof_ipc_comp_ext);
-		comp = kzalloc(ipc_size, GFP_KERNEL);
-		if (!comp) {
-			ret = -ENOMEM;
-			goto core_put;
-		}
-
 		dai = swidget->private;
+		comp = &dai->comp_dai->comp;
 		dai->configured = false;
-		memcpy(comp, &dai->comp_dai, sizeof(struct sof_ipc_comp_dai));
 
-		/* append extended data to the end of the component */
-		memcpy((u8 *)comp + sizeof(struct sof_ipc_comp_dai), &swidget->comp_ext,
-		       sizeof(swidget->comp_ext));
-
-		ret = sof_ipc_tx_message(sdev->ipc, comp->hdr.cmd, comp, ipc_size, &r, sizeof(r));
-		kfree(comp);
+		ret = sof_ipc_tx_message(sdev->ipc, comp->hdr.cmd, dai->comp_dai, comp->hdr.size,
+					 &r, sizeof(r));
 		if (ret < 0) {
 			dev_err(sdev->dev, "error: failed to load widget %s\n",
 				swidget->widget->name);

sound/soc/sof/sof-audio.h

@@ -134,7 +134,7 @@ struct snd_sof_dai {
 	struct snd_soc_component *scomp;
 	const char *name;
 
-	struct sof_ipc_comp_dai comp_dai;
+	struct sof_ipc_comp_dai *comp_dai;
 	int number_configs;
 	int current_config;
 	bool configured; /* DAI configured during BE hw_params */

sound/soc/sof/topology.c

@@ -1478,7 +1478,7 @@ static int sof_widget_load_dai(struct snd_soc_component *scomp, int index,
 	if (ret != 0) {
 		dev_err(scomp->dev, "error: parse dai tokens failed %d\n",
 			le32_to_cpu(private->size));
-		goto finish;
+		return ret;
 	}
 
 	ret = sof_parse_tokens(scomp, &comp_dai->config, comp_tokens,
@@ -1487,7 +1487,7 @@ static int sof_widget_load_dai(struct snd_soc_component *scomp, int index,
 	if (ret != 0) {
 		dev_err(scomp->dev, "error: parse dai.cfg tokens failed %d\n",
 			private->size);
-		goto finish;
+		return ret;
 	}
 
 	dev_dbg(scomp->dev, "dai %s: type %d index %d\n",
@@ -1496,17 +1496,9 @@ static int sof_widget_load_dai(struct snd_soc_component *scomp, int index,
 
 	if (dai) {
 		dai->scomp = scomp;
-
-		/*
-		 * copy only the sof_ipc_comp_dai to avoid collapsing
-		 * the snd_sof_dai, the extended data is kept in the
-		 * snd_sof_widget.
-		 */
-		memcpy(&dai->comp_dai, comp_dai, sizeof(*comp_dai));
+		dai->comp_dai = comp_dai;
 	}
 
-finish:
-	kfree(comp_dai);
 	return ret;
 }
 
@@ -2429,6 +2421,7 @@ static int sof_widget_unload(struct snd_soc_component *scomp,
 		dai = swidget->private;
 
 		if (dai) {
+			kfree(dai->comp_dai);
 			/* free dai config */
 			kfree(dai->dai_config);
 			list_del(&dai->list);
@@ -2668,7 +2661,7 @@ static int sof_set_dai_config_multi(struct snd_sof_dev *sdev, u32 size,
 			 * dai_index.
 			 */
 			for (i = 0; i < num_conf; i++)
-				config[i].dai_index = dai->comp_dai.dai_index;
+				config[i].dai_index = dai->comp_dai->dai_index;
 
 			dev_dbg(sdev->dev, "set DAI config for %s index %d\n",
 				dai->name, config[curr_conf].dai_index);