diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 0eac3bcb9736..fc9c753db8dd 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -46,7 +46,25 @@ static int asoc_simple_parse_dai(struct device_node *node,
 	if (ret)
 		return ret;
 
-	/* Get dai->name */
+	/*
+	 * FIXME
+	 *
+	 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
+	 * If user unbinded CPU or Codec driver, but not for Sound Card,
+	 * dlc->dai_name is keeping unbinded CPU or Codec
+	 * driver's pointer.
+	 *
+	 * If user re-bind CPU or Codec driver again, ALSA SoC will try
+	 * to rebind Card via snd_soc_try_rebind_card(), but because of
+	 * above reason, it might can't bind Sound Card.
+	 * Because Sound Card is pointing to released dai_name pointer.
+	 *
+	 * To avoid this rebind Card issue,
+	 * 1) It needs to alloc memory to keep dai_name eventhough
+	 *    CPU or Codec driver was unbinded, or
+	 * 2) user need to rebind Sound Card everytime
+	 *    if he unbinded CPU or Codec.
+	 */
 	ret = snd_soc_of_get_dai_name(node, &dlc->dai_name);
 	if (ret < 0)
 		return ret;