diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index e50e28f77e74..838f695b20de 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -1143,6 +1143,8 @@ int amdtp_domain_init(struct amdtp_domain *d)
 {
 	INIT_LIST_HEAD(&d->streams);
 
+	d->events_per_period = 0;
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(amdtp_domain_init);
@@ -1221,5 +1223,7 @@ void amdtp_domain_stop(struct amdtp_domain *d)
 
 		amdtp_stream_stop(s);
 	}
+
+	d->events_per_period = 0;
 }
 EXPORT_SYMBOL_GPL(amdtp_domain_stop);
diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h
index bbbca964b9b4..d95a4ed15f20 100644
--- a/sound/firewire/amdtp-stream.h
+++ b/sound/firewire/amdtp-stream.h
@@ -272,6 +272,8 @@ static inline bool amdtp_stream_wait_callback(struct amdtp_stream *s,
 
 struct amdtp_domain {
 	struct list_head streams;
+
+	unsigned int events_per_period;
 };
 
 int amdtp_domain_init(struct amdtp_domain *d);
@@ -283,4 +285,12 @@ int amdtp_domain_add_stream(struct amdtp_domain *d, struct amdtp_stream *s,
 int amdtp_domain_start(struct amdtp_domain *d);
 void amdtp_domain_stop(struct amdtp_domain *d);
 
+static inline int amdtp_domain_set_events_per_period(struct amdtp_domain *d,
+						unsigned int events_per_period)
+{
+	d->events_per_period = events_per_period;
+
+	return 0;
+}
+
 #endif