1 files changed, 24 insertions, 10 deletions

diff --git a/sound/soc/sdw_utils/soc_sdw_cs_amp.c b/sound/soc/sdw_utils/soc_sdw_cs_amp.c
index 4b6181cf2971..520ea36c63ee 100644
--- a/sound/soc/sdw_utils/soc_sdw_cs_amp.c
+++ b/sound/soc/sdw_utils/soc_sdw_cs_amp.c
@@ -14,32 +14,46 @@
 #include <sound/soc-dai.h>
 #include <sound/soc_sdw_utils.h>
 
-#define CODEC_NAME_SIZE	8
 #define CS_AMP_CHANNELS_PER_AMP	4
+#define CS35L56_SPK_VOLUME_0DB 400 /* 0dB Max */
+
+int asoc_sdw_cs35l56_volume_limit(struct snd_soc_card *card, const char *name_prefix)
+{
+	char *volume_ctl_name;
+	int ret;
+
+	volume_ctl_name = kasprintf(GFP_KERNEL, "%s Speaker Volume", name_prefix);
+	if (!volume_ctl_name)
+		return -ENOMEM;
+
+	ret = snd_soc_limit_volume(card, volume_ctl_name, CS35L56_SPK_VOLUME_0DB);
+	if (ret)
+		dev_err(card->dev, "%s limit set failed: %d\n", volume_ctl_name, ret);
+
+	kfree(volume_ctl_name);
+	return ret;
+}
+EXPORT_SYMBOL_NS(asoc_sdw_cs35l56_volume_limit, "SND_SOC_SDW_UTILS");
 
 int asoc_sdw_cs_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
 {
-	const char *dai_name = rtd->dai_link->codecs->dai_name;
 	struct snd_soc_card *card = rtd->card;
-	char codec_name[CODEC_NAME_SIZE];
 	char widget_name[16];
 	struct snd_soc_dapm_route route = { "Speaker", NULL, widget_name };
 	struct snd_soc_dai *codec_dai;
 	int i, ret;
 
-	snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
-	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
-					  "%s spk:%s",
-					  card->components, codec_name);
-	if (!card->components)
-		return -ENOMEM;
-
 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
 		if (!strstr(codec_dai->name, "cs35l56"))
 			continue;
 
 		snprintf(widget_name, sizeof(widget_name), "%s SPK",
 			 codec_dai->component->name_prefix);
+
+		ret = asoc_sdw_cs35l56_volume_limit(card, codec_dai->component->name_prefix);
+		if (ret)
+			return ret;
+
 		ret = snd_soc_dapm_add_routes(&card->dapm, &route, 1);
 		if (ret)
 			return ret;