diff --git a/include/linux/msm_gsi.h b/include/linux/msm_gsi.h
index 294d73e2e24d..796e430f26d2 100644
--- a/include/linux/msm_gsi.h
+++ b/include/linux/msm_gsi.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
  */
 
 #ifndef MSM_GSI_H
@@ -1723,6 +1723,20 @@ int gsi_map_virtual_ch_to_per_ep(u32 ee, u32 chan_num, u32 per_ep_index);
  */
 int gsi_alloc_channel_ee(unsigned int chan_idx, unsigned int ee, int *code);
 
+/**
+ * gsi_enable_flow_control_ee - Peripheral should call this function
+ * to enable flow control other EE's channel. This is usually done in USB
+ * connent and SSR scenarios.
+ *
+ * @chan_idx: Virtual channel index
+ * @ee: EE
+ * @code: [out] response code for operation
+
+ * @Return gsi_status
+ */
+int gsi_enable_flow_control_ee(unsigned int chan_idx, unsigned int ee,
+								int *code);
+
 /*
  * Here is a typical sequence of calls
  *
@@ -1992,6 +2006,12 @@ static inline int gsi_alloc_channel_ee(unsigned int chan_idx, unsigned int ee,
 	return -GSI_STATUS_UNSUPPORTED_OP;
 }
 
+static inline int gsi_enable_flow_control_ee(unsigned int chan_idx,
+			unsigned int ee, int *code)
+{
+	return -GSI_STATUS_UNSUPPORTED_OP;
+}
+
 static inline void gsi_wdi3_write_evt_ring_db(
 	unsigned long chan_hdl, uint32_t db_addr_low,
 	uint32_t db_addr_high)