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2024-02-19 890e1df1bec891d9203724541e81f8fbe5183388

 kernel/sound/soc/rockchip/rockchip_multi_dais.c
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..
@@ -23,9 +23,18 @@
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 #define DAIS_DRV_NAME		"rockchip-mdais"
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 #define RK3308_GRF_SOC_CON2	0x308
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25
 
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+#define SOUND_NAME_PREFIX	"sound-name-prefix"
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+
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 static inline struct rk_mdais_dev *to_info(struct snd_soc_dai *dai)
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 {
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 	return snd_soc_dai_get_drvdata(dai);
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+}
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+
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+static inline unsigned int *mdais_channel_maps(struct rk_mdais_dev *mdais,
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+					       struct snd_pcm_substream *substream)
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+{
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+	return substream->stream ? mdais->capture_channel_maps :
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+				   mdais->playback_channel_maps;
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 }
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39
 
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 static void hw_refine_channels(struct snd_pcm_hw_params *params,
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@@ -52,26 +61,51 @@
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 	if (IS_ERR(cparams))
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 		return PTR_ERR(cparams);
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63
 
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-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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-		channel_maps = mdais->playback_channel_maps;
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-	else
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-		channel_maps = mdais->capture_channel_maps;
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+	channel_maps = mdais_channel_maps(mdais, substream);
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 	for (i = 0; i < mdais->num_dais; i++) {
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 		child = mdais->dais[i].dai;
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-		if (channel_maps[i])
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-			hw_refine_channels(cparams, channel_maps[i]);
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+		if (!channel_maps[i])
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+			continue;
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+
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+		hw_refine_channels(cparams, channel_maps[i]);
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 		if (child->driver->ops && child->driver->ops->hw_params) {
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 			ret = child->driver->ops->hw_params(substream, cparams, child);
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 			if (ret < 0) {
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-				dev_err(dai->dev, "ASoC: can't set %s hw params: %d\n",
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+				dev_err(dai->dev, "Failed to set %s hw params: %d\n",
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 					dai->name, ret);
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-				return ret;
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+				break;
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 			}
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 		}
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 	}
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 	kfree(cparams);
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+
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+	return ret;
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+}
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+
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+static int rockchip_mdais_hw_free(struct snd_pcm_substream *substream,
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+				  struct snd_soc_dai *dai)
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+{
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+	struct rk_mdais_dev *mdais = to_info(dai);
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+	struct snd_soc_dai *child;
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+	unsigned int *channel_maps;
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+	int ret = 0, i = 0;
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+
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+	channel_maps = mdais_channel_maps(mdais, substream);
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+
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+	for (i = 0; i < mdais->num_dais; i++) {
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+		child = mdais->dais[i].dai;
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+		if (!channel_maps[i])
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+			continue;
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+
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+		if (child->driver->ops && child->driver->ops->hw_free) {
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+			ret = child->driver->ops->hw_free(substream, child);
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+			if (ret < 0)
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+				return ret;
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+		}
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+	}
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+
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 	return 0;
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 }
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..
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@@ -83,10 +117,7 @@
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 	unsigned int *channel_maps;
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 	int ret = 0, i = 0;
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119
 
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-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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-		channel_maps = mdais->playback_channel_maps;
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-	else
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-		channel_maps = mdais->capture_channel_maps;
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+	channel_maps = mdais_channel_maps(mdais, substream);
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 	for (i = 0; i < mdais->num_dais; i++) {
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 		/* skip DAIs which have no channel mapping */
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@@ -110,9 +141,15 @@
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 {
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 	struct rk_mdais_dev *mdais = to_info(dai);
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 	struct snd_soc_dai *child;
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+	unsigned int *channel_maps;
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 	int ret = 0, i = 0;
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146
 
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+	channel_maps = mdais_channel_maps(mdais, substream);
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+
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 	for (i = 0; i < mdais->num_dais; i++) {
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+		if (!channel_maps[i])
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+			continue;
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+
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 		child = mdais->dais[i].dai;
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 		if (child->driver->ops && child->driver->ops->startup) {
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 			ret = child->driver->ops->startup(substream, child);
..
..
@@ -129,9 +166,15 @@
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 {
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 	struct rk_mdais_dev *mdais = to_info(dai);
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 	struct snd_soc_dai *child;
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+	unsigned int *channel_maps;
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 	int i = 0;
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171
 
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+	channel_maps = mdais_channel_maps(mdais, substream);
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+
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 	for (i = 0; i < mdais->num_dais; i++) {
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+		if (!channel_maps[i])
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+			continue;
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+
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 		child = mdais->dais[i].dai;
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 		if (child->driver->ops && child->driver->ops->shutdown) {
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 			child->driver->ops->shutdown(substream, child);
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@@ -144,9 +187,15 @@
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 {
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 	struct rk_mdais_dev *mdais = to_info(dai);
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 	struct snd_soc_dai *child;
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+	unsigned int *channel_maps;
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 	int ret = 0, i = 0;
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192
 
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+	channel_maps = mdais_channel_maps(mdais, substream);
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+
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 	for (i = 0; i < mdais->num_dais; i++) {
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+		if (!channel_maps[i])
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+			continue;
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+
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 		child = mdais->dais[i].dai;
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 		if (child->driver->ops && child->driver->ops->prepare) {
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 			ret = child->driver->ops->prepare(substream, child);
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@@ -220,20 +269,38 @@
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 static int rockchip_mdais_dai_probe(struct snd_soc_dai *dai)
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 {
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 	struct rk_mdais_dev *mdais = to_info(dai);
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+	struct snd_soc_component *comp;
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 	struct snd_soc_dai *child;
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+	const char *str;
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 	int ret, i = 0;
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 	for (i = 0; i < mdais->num_dais; i++) {
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 		child = mdais->dais[i].dai;
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+		comp = child->component;
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 		if (!child->probed && child->driver->probe) {
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-			child->component->card = dai->component->card;
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+			if (!comp->name_prefix) {
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+				ret = device_property_read_string(child->dev,
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+								  SOUND_NAME_PREFIX, &str);
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+				if (!ret)
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+					comp->name_prefix = str;
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+			}
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+
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+			comp->card = dai->component->card;
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 			ret = child->driver->probe(child);
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 			if (ret < 0) {
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 				dev_err(child->dev,
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-					"ASoC: failed to probe DAI %s: %d\n",
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+					"Failed to probe DAI %s: %d\n",
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 					child->name, ret);
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 				return ret;
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 			}
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+
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+			ret = snd_soc_add_component_controls(comp,
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+							     comp->driver->controls,
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+							     comp->driver->num_controls);
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+			if (ret)
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+				dev_err(dai->dev, "%s: Failed to add controls, should add '%s' in DT\n",
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+					dev_name(child->dev), SOUND_NAME_PREFIX);
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+
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 			dai->probed = 1;
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 		}
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 	}
..
..
@@ -243,6 +310,7 @@
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 static const struct snd_soc_dai_ops rockchip_mdais_dai_ops = {
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 	.hw_params = rockchip_mdais_hw_params,
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+	.hw_free = rockchip_mdais_hw_free,
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 	.set_sysclk = rockchip_mdais_set_sysclk,
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 	.set_fmt = rockchip_mdais_set_fmt,
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 	.set_tdm_slot = rockchip_mdais_tdm_slot,
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@@ -383,9 +451,9 @@
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 		.probe = rockchip_mdais_dai_probe,
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 		.playback = {
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 			.stream_name = "Playback",
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-			.channels_min = 2,
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-			.channels_max = 32,
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-			.rates = SNDRV_PCM_RATE_8000_192000,
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+			.channels_min = 1,
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+			.channels_max = 512,
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+			.rates = SNDRV_PCM_RATE_8000_384000,
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 			.formats = (SNDRV_PCM_FMTBIT_S8 |
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 				    SNDRV_PCM_FMTBIT_S16_LE |
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 				    SNDRV_PCM_FMTBIT_S20_3LE |
..
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@@ -394,9 +462,9 @@
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 		},
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 		.capture = {
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 			.stream_name = "Capture",
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-			.channels_min = 2,
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-			.channels_max = 32,
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-			.rates = SNDRV_PCM_RATE_8000_192000,
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+			.channels_min = 1,
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+			.channels_max = 512,
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+			.rates = SNDRV_PCM_RATE_8000_384000,
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 			.formats = (SNDRV_PCM_FMTBIT_S8 |
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 				    SNDRV_PCM_FMTBIT_S16_LE |
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 				    SNDRV_PCM_FMTBIT_S20_3LE |