diff --git a/drivers/staging/greybus/greybus_manifest.h b/drivers/staging/greybus/greybus_manifest.h
index 6f019fa8f4ca..844a7f12ea8d 100644
--- a/drivers/staging/greybus/greybus_manifest.h
+++ b/drivers/staging/greybus/greybus_manifest.h
@@ -1,10 +1,12 @@
 /*
- * Greybus device descriptor definition
+ * Greybus module manifest definition
  *
- * Defined in the "Greybus Application Protocol" document.
- * See that document for any details on these values and structures.
+ * See "Greybus Application Protocol" document (version 0.draft) for
+ * details on these values and structures.
  *
  * Copyright 2014 Google Inc.
+ *
+ * Released under the GPLv2 only.
  */
 
 #ifndef __GREYBUS_DESC_H
diff --git a/drivers/staging/greybus/svc_msg.h b/drivers/staging/greybus/svc_msg.h
index c290547305ac..8b936ed48d93 100644
--- a/drivers/staging/greybus/svc_msg.h
+++ b/drivers/staging/greybus/svc_msg.h
@@ -1,10 +1,12 @@
 /*
  * Greybus AP <-> SVC message structure format.
  *
- * Defined in the "Greybus Application Protocol" document.
- * See that document for any details on these values and structures.
+ * See "Greybus Application Protocol" document (version 0.draft) for
+ * details on these values and structures.
  *
  * Copyright 2014 Google Inc.
+ *
+ * Released under the GPLv2 only.
  */
 
 #ifndef __SVC_MSG_H