diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 32c3d42..fabfc0b 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012, 2016-2017, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2012, 2016-2018, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -272,11 +272,16 @@
 				struct device *dev, struct device_node *node);
 extern struct coresight_cti_data *of_get_coresight_cti_data(
 				struct device *dev, struct device_node *node);
+extern int of_get_coresight_csr_name(struct device_node *node,
+				const char **csr_name);
+
 #else
 static inline struct coresight_platform_data *of_get_coresight_platform_data(
 	struct device *dev, struct device_node *node) { return NULL; }
 static inline struct coresight_cti_data *of_get_coresight_cti_data(
 		struct device *dev, struct device_node *node) { return NULL; }
+static inline int of_get_coresight_csr_name(struct device_node *node,
+		const char **csr_name){ return -EINVAL; }
 #endif
 
 #ifdef CONFIG_PID_NS