diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 1186b59fd5a4..3de300a5b903 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -2564,8 +2564,56 @@ typedef struct {
      */
 } wmi_service_ready_ext_event_fixed_param;
 
+/*
+ * regdb version GET/SET APIs
+ */
+#define WMI_REG_DB_VERSION_MAJOR_BITPOS 0
+#define WMI_REG_DB_VERSION_MINOR_BITPOS 8
+#define WMI_BDF_REG_DB_VERSION_MAJOR_BITPOS 16
+#define WMI_BDF_REG_DB_VERSION_MINOR_BITPOS 24
+#define WMI_REG_DB_VERSION_NUM_BITS 8
+
+#define WMI_REG_DB_VERSION_MAJOR_GET(dword) \
+    WMI_GET_BITS(dword, WMI_REG_DB_VERSION_MAJOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS)
+#define WMI_REG_DB_VERSION_MAJOR_SET(dword, value) \
+    WMI_SET_BITS(dword, WMI_REG_DB_VERSION_MAJOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS, value)
+
+#define WMI_REG_DB_VERSION_MINOR_GET(dword) \
+    WMI_GET_BITS(dword, WMI_REG_DB_VERSION_MINOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS)
+#define WMI_REG_DB_VERSION_MINOR_SET(dword, value) \
+    WMI_SET_BITS(dword, WMI_REG_DB_VERSION_MINOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS, value)
+
+#define WMI_BDF_REG_DB_VERSION_MAJOR_GET(dword) \
+    WMI_GET_BITS(dword, WMI_BDF_REG_DB_VERSION_MAJOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS)
+#define WMI_BDF_REG_DB_VERSION_MAJOR_SET(dword, value) \
+    WMI_SET_BITS(dword, WMI_BDF_REG_DB_VERSION_MAJOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS, value)
+
+#define WMI_BDF_REG_DB_VERSION_MINOR_GET(dword) \
+    WMI_GET_BITS(dword, WMI_BDF_REG_DB_VERSION_MINOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS)
+#define WMI_BDF_REG_DB_VERSION_MINOR_SET(dword, value) \
+    WMI_SET_BITS(dword, WMI_BDF_REG_DB_VERSION_MINOR_BITPOS, WMI_REG_DB_VERSION_NUM_BITS, value)
+
+#define WMI_REG_DB_VERSION_SET(dword, reg_db_ver_major, reg_db_ver_minor, bdf_reg_db_ver_major, bdf_reg_db_ver_minor) \
+    do { \
+        WMI_REG_DB_VERSION_MAJOR_SET(dword, reg_db_ver_major); \
+        WMI_REG_DB_VERSION_MINOR_SET(dword, reg_db_ver_minor); \
+        WMI_BDF_REG_DB_VERSION_MAJOR_SET(dword, bdf_reg_db_ver_major); \
+        WMI_BDF_REG_DB_VERSION_MINOR_SET(dword, bdf_reg_db_ver_minor); \
+    } while (0)
+
 typedef struct {
     A_UINT32 tlv_header; /* TLV tag and len; tag equals WMITLV_TAG_STRUC_wmi_service_ready_ext2_event_fixed_param.*/
+
+    /*
+     * regDB Version to be sent to Host on WMI service ready ext2 event.
+     *    [7:0]   - regDbVersionMajor
+     *    [15:8]  - regDbVersionMinor
+     *    [23:16] - bdfRegDbVersionMajor
+     *    [31:24] - bdfRegDbVersionMinor
+     * The WMI_*REG_DB_VERSION_[MAJOR,MINOR]_[SET,GET] macros are used to
+     * access these bitfields.
+     */
+    A_UINT32 reg_db_version;
 } wmi_service_ready_ext2_event_fixed_param;
 
 typedef struct {
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index f17c1a03d430..bbbe1d5dfedc 100644
--- a/fw/wmi_version.h
+++ b/fw/wmi_version.h
@@ -36,7 +36,7 @@
 #define __WMI_VER_MINOR_    0
 /** WMI revision number has to be incremented when there is a
  *  change that may or may not break compatibility. */
-#define __WMI_REVISION_ 702
+#define __WMI_REVISION_ 703
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work