diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 5373eba5d572..82d2234840c5 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -144,6 +144,27 @@ u32 *rsnd_mod_get_status(struct rsnd_mod *mod,
 	return &mod->status;
 }
 
+int rsnd_mod_id_raw(struct rsnd_mod *mod)
+{
+	return mod->id;
+}
+
+int rsnd_mod_id(struct rsnd_mod *mod)
+{
+	if ((mod)->ops->id)
+		return (mod)->ops->id(mod);
+
+	return rsnd_mod_id_raw(mod);
+}
+
+int rsnd_mod_id_sub(struct rsnd_mod *mod)
+{
+	if ((mod)->ops->id_sub)
+		return (mod)->ops->id_sub(mod);
+
+	return 0;
+}
+
 int rsnd_mod_init(struct rsnd_priv *priv,
 		  struct rsnd_mod *mod,
 		  struct rsnd_mod_ops *ops,
diff --git a/sound/soc/sh/rcar/ctu.c b/sound/soc/sh/rcar/ctu.c
index 28058474075b..6a948b1fd9ab 100644
--- a/sound/soc/sh/rcar/ctu.c
+++ b/sound/soc/sh/rcar/ctu.c
@@ -334,6 +334,24 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
 	return ret;
 }
 
+static int rsnd_ctu_id(struct rsnd_mod *mod)
+{
+	/*
+	 * ctu00: -> 0, ctu01: -> 0, ctu02: -> 0, ctu03: -> 0
+	 * ctu10: -> 1, ctu11: -> 1, ctu12: -> 1, ctu13: -> 1
+	 */
+	return mod->id / 4;
+}
+
+static int rsnd_ctu_id_sub(struct rsnd_mod *mod)
+{
+	/*
+	 * ctu00: -> 0, ctu01: -> 1, ctu02: -> 2, ctu03: -> 3
+	 * ctu10: -> 0, ctu11: -> 1, ctu12: -> 2, ctu13: -> 3
+	 */
+	return mod->id % 4;
+}
+
 static struct rsnd_mod_ops rsnd_ctu_ops = {
 	.name		= CTU_NAME,
 	.probe		= rsnd_ctu_probe_,
@@ -342,6 +360,8 @@ static struct rsnd_mod_ops rsnd_ctu_ops = {
 	.hw_params	= rsnd_ctu_hw_params,
 	.pcm_new	= rsnd_ctu_pcm_new,
 	.get_status	= rsnd_mod_get_status,
+	.id		= rsnd_ctu_id,
+	.id_sub		= rsnd_ctu_id_sub,
 };
 
 struct rsnd_mod *rsnd_ctu_mod_get(struct rsnd_priv *priv, int id)
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index d25fb5c14c2d..fdf007aeac27 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -304,6 +304,8 @@ struct rsnd_mod_ops {
 	u32 *(*get_status)(struct rsnd_mod *mod,
 			   struct rsnd_dai_stream *io,
 			   enum rsnd_mod_type type);
+	int (*id)(struct rsnd_mod *mod);
+	int (*id_sub)(struct rsnd_mod *mod);
 };
 
 struct rsnd_dai_stream;
@@ -376,7 +378,6 @@ struct rsnd_mod {
 
 #define rsnd_mod_to_priv(mod)	((mod)->priv)
 #define rsnd_mod_name(mod)	((mod)->ops->name)
-#define rsnd_mod_id(mod)	((mod)->id)
 #define rsnd_mod_power_on(mod)	clk_enable((mod)->clk)
 #define rsnd_mod_power_off(mod)	clk_disable((mod)->clk)
 #define rsnd_mod_get(ip)	(&(ip)->mod)
@@ -396,6 +397,9 @@ void rsnd_mod_interrupt(struct rsnd_mod *mod,
 u32 *rsnd_mod_get_status(struct rsnd_mod *mod,
 			 struct rsnd_dai_stream *io,
 			 enum rsnd_mod_type type);
+int rsnd_mod_id(struct rsnd_mod *mod);
+int rsnd_mod_id_raw(struct rsnd_mod *mod);
+int rsnd_mod_id_sub(struct rsnd_mod *mod);
 struct rsnd_mod *rsnd_mod_next(int *iterator,
 			       struct rsnd_dai_stream *io,
 			       enum rsnd_mod_type *array,