diff --git a/fw/wmi_tlv_defs.h b/fw/wmi_tlv_defs.h
index 19196afa5173..ebf846308762 100644
--- a/fw/wmi_tlv_defs.h
+++ b/fw/wmi_tlv_defs.h
@@ -1051,6 +1051,8 @@ typedef enum {
     WMITLV_TAG_STRUC_wmi_nan_dmesg_event_fixed_param,
     WMITLV_TAG_STRUC_wmi_frame_inject_cmd_fixed_param,
     WMITLV_TAG_STRUC_wmi_smartant_event_fixed_param,
+    WMITLV_TAG_STRUC_wmi_pdev_tbtt_offset_sync_cmd_fixed_param,
+    WMITLV_TAG_STRUC_wmi_pdev_rnr_bss_tbtt_info,
 } WMITLV_TAG_ID;
 
 /*
@@ -1481,6 +1483,7 @@ typedef enum {
     OP(WMI_ROAM_GET_SCAN_CHANNEL_LIST_CMDID) \
     OP(WMI_VDEV_GET_BIG_DATA_CMDID) \
     OP(WMI_PDEV_FRAME_INJECT_CMDID) \
+    OP(WMI_PDEV_TBTT_OFFSET_SYNC_CMDID) \
     /* add new CMD_LIST elements above this line */
 
 
@@ -4302,6 +4305,12 @@ WMITLV_CREATE_PARAM_STRUC(WMI_VDEV_GET_BIG_DATA_CMDID);
     WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_BYTE, A_UINT8, bufp, WMITLV_SIZE_VAR)
 WMITLV_CREATE_PARAM_STRUC(WMI_PDEV_FRAME_INJECT_CMDID);
 
+/* Get / Set RNR TBTT offset info */
+#define WMITLV_TABLE_WMI_PDEV_TBTT_OFFSET_SYNC_CMDID(id,op,buf,len) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_pdev_tbtt_offset_sync_cmd_fixed_param, wmi_pdev_tbtt_offset_sync_cmd_fixed_param, fixed_param, WMITLV_SIZE_FIX) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_STRUC, wmi_pdev_rnr_bss_tbtt_info, rnr_tbtt_info, WMITLV_SIZE_VAR)
+WMITLV_CREATE_PARAM_STRUC(WMI_PDEV_TBTT_OFFSET_SYNC_CMDID);
+
 
 /************************** TLV definitions of WMI events *******************************/
 
@@ -5797,6 +5806,7 @@ WMITLV_CREATE_PARAM_STRUC(WMI_VDEV_SEND_BIG_DATA_EVENTID);
     WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_BYTE, A_UINT8, msg, WMITLV_SIZE_VAR)
 WMITLV_CREATE_PARAM_STRUC(WMI_NAN_DMESG_EVENTID);
 
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 2da181033d21..05d3d669cf05 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -414,6 +414,14 @@ typedef enum {
     WMI_PDEV_DSM_FILTER_CMDID,
     /** enable/disable periodic frame injection */
     WMI_PDEV_FRAME_INJECT_CMDID,
+    /*
+     * Pdev level command to:
+     * a) solicit @WMI_TBTTOFFSET_EXT_UPDATE_EVENTID having TBTT in qtime
+     *    domain for all active vdevs or
+     * b) update one pdevs tbtt offset to another pdev for use in
+     *    RNR TBTT offset calculation.
+     */
+    WMI_PDEV_TBTT_OFFSET_SYNC_CMDID,
 
     /* VDEV (virtual device) specific commands */
     /** vdev create */
@@ -3518,6 +3526,14 @@ typedef struct {
      *  Bits 31:1 - Reserved
      */
     A_UINT32 host_service_flags;
+
+    /** @brief max_rnr_neighbours -
+     * The Maximum number of neighbour RNR's from other SoC.
+     * This limits the field @num_bss in @wmi_pdev_tbtt_offset_sync_cmd_fixed_param.
+     * Value of 0 means crosss SoC TBTT offset syncronization not required and
+     * @PDEV_TBTT_OFFSET_SYNC_CMD wouldn't be used.
+     */
+    A_UINT32 max_rnr_neighbours;
 } wmi_resource_config;
 
 #define WMI_MSDU_FLOW_AST_ENABLE_GET(msdu_flow_config0, ast_x) \
@@ -11722,6 +11738,7 @@ typedef struct {
  */
 } wmi_tbtt_offset_event_fixed_param;
 
+#define WMI_TBTT_OFFSET_INVALID 0xffffffff /* tbttoffset is not updated by FW */
 typedef struct {
     A_UINT32 tlv_header;/* TLV tag and len; tag equals WMITLV_TAG_STRUC_wmi_tbtt_offset_info */
     /** unique id identifying the VDEV */
@@ -24211,6 +24228,49 @@ typedef struct {
  **/
 } wmi_vdev_set_pcl_cmd_fixed_param;
 
+/** command type for WMI_PDEV_TBTT_OFFSET_SYNC_CMDID */
+enum pdev_tbtt_offset_cmd_type
+{
+    WMI_PDEV_GET_TBTT_OFFSET,
+    WMI_PDEV_SET_TBTT_OFFSET,
+};
+
+/** Per neighbour TBTT offset information */
+typedef struct
+{
+    /** TLV tag and len, tag equals WMITLV_TAG_STRUC_wmi_pdev_tbtt_offset_info */
+    A_UINT32 tlv_header;
+    /* neighbour bss mac address */
+    wmi_mac_addr bss_mac;
+    /* neighbour bss beacon interval in TU */
+    A_UINT32 beacon_intval;
+    /* neighbour bss operating class as defined in Annex E, IEEE80211 standard */
+    A_UINT32 opclass;
+    /* neighbour bss operating channel index */
+    A_UINT32 chan_idx;
+    /* neighbour bss next QTIME TBTT high 32 bit value */
+    A_UINT32 next_qtime_tbtt_high;
+    /* neighbour bss next QTIME TBTT low 32 bit value */
+    A_UINT32 next_qtime_tbtt_low;
+} wmi_pdev_rnr_bss_tbtt_info;
+
+typedef struct {
+    /** TLV tag and len; tag equals
+     * WMITLV_TAG_STRUC_wmi_pdev_tbtt_offset_sync_cmd_fixed_param */
+    A_UINT32 tlv_header;
+    /*
+     * PDEV identifier. Value WMI_PDEV_ID_SOC implies applicable to all pdevs
+     * on SoC else applicable only to specified pdev
+     */
+    A_UINT32 pdev_id;
+    /* command_type from enum pdev_tbtt_offset_cmd_type */
+    A_UINT32 cmd_type;
+    /*
+     * Following this structure is the TLV:
+     * struct wmi_pdev_rnr_bss_tbtt_info rnr_tbtt_info[num_rnr_tbtt_info];
+     */
+} wmi_pdev_tbtt_offset_sync_cmd_fixed_param;
+
 typedef enum {
     WLAN_2G_CAPABILITY = 0x1,
     WLAN_5G_CAPABILITY = 0x2,
@@ -25484,6 +25544,7 @@ static INLINE A_UINT8 *wmi_id_to_name(A_UINT32 wmi_command)
         WMI_RETURN_STRING(WMI_ROAM_GET_SCAN_CHANNEL_LIST_CMDID);
         WMI_RETURN_STRING(WMI_VDEV_GET_BIG_DATA_CMDID);
         WMI_RETURN_STRING(WMI_PDEV_FRAME_INJECT_CMDID);
+        WMI_RETURN_STRING(WMI_PDEV_TBTT_OFFSET_SYNC_CMDID);
     }
 
     return "Invalid WMI cmd";
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 66e808557364..bce04efd665d 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_ 793
+#define __WMI_REVISION_ 794
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work