diff --git a/umac/mlme/vdev_mgr/dispatcher/inc/wlan_vdev_mgr_tgt_if_tx_defs.h b/umac/mlme/vdev_mgr/dispatcher/inc/wlan_vdev_mgr_tgt_if_tx_defs.h
index daa5d30d22..170830fb85 100644
--- a/umac/mlme/vdev_mgr/dispatcher/inc/wlan_vdev_mgr_tgt_if_tx_defs.h
+++ b/umac/mlme/vdev_mgr/dispatcher/inc/wlan_vdev_mgr_tgt_if_tx_defs.h
@@ -146,6 +146,39 @@ struct sta_ps_params {
 	uint32_t value;
 };
 
+/**
+ * struct rnr_bss_tbtt_info_param: Reported Vdev info
+ * @bss_mac: Mac address
+ * @beacon_intval: Beacon interval of reported AP
+ * @opclass: Channel Opclass
+ * @chan_idx: Channel number
+ * @next_qtime_tbtt_high: Tbtt higher 32bit
+ * @next_qtime_tbtt_low: Tbtt lower 32bit
+ */
+struct rnr_bss_tbtt_info_param {
+	uint8_t bss_mac[QDF_MAC_ADDR_SIZE];
+	uint32_t beacon_intval;
+	uint32_t opclass;
+	uint32_t chan_idx;
+	uint32_t next_qtime_tbtt_high;
+	uint32_t next_qtime_tbtt_low;
+};
+
+/**
+ * struct rnr_tbtt_multisoc_sync_param - Params to
+ * sync tbtt with non self SoCs timers
+ * @pdev_id: Host pdev_id
+ * @rnr_vap_count: Count of Vap to be included in WMI cmd
+ * @cmd_type: Set/Get tbtt sync info
+ * @rnr_bss_tbtt: Reported AP Vap info
+ */
+struct rnr_tbtt_multisoc_sync_param {
+	uint32_t pdev_id;
+	uint8_t rnr_vap_count;
+	uint8_t cmd_type;
+	struct rnr_bss_tbtt_info_param *rnr_bss_tbtt;
+};
+
 /**
  * struct tbttoffset_params - Tbttoffset event params
  * @vdev_id: Virtual AP device identifier
diff --git a/wmi/inc/wmi_unified_param.h b/wmi/inc/wmi_unified_param.h
index e929718105..0aae0d90c4 100644
--- a/wmi/inc/wmi_unified_param.h
+++ b/wmi/inc/wmi_unified_param.h
@@ -5261,6 +5261,7 @@ struct wmi_host_fw_abi_ver {
  * @ast_tid_low_mask_enable: enable tid valid mask for low priority flow
  * @nan_separate_iface_support: Separate iface creation for NAN
  * @time_sync_ftm: enable ftm based time sync
+ * @max_rnr_neighbours: Max supported RNR neighbors in multisoc APs
  */
 typedef struct {
 	uint32_t num_vdevs;
@@ -5359,6 +5360,7 @@ typedef struct {
 		 ast_tid_low_mask_enable:8;
 	bool nan_separate_iface_support;
 	bool time_sync_ftm;
+	uint32_t max_rnr_neighbours;
 } target_resource_config;
 
 /**
@@ -8150,4 +8152,13 @@ struct wmi_host_ani_level_event {
 	uint32_t ani_level;
 };
 #endif /* FEATURE_ANI_LEVEL_REQUEST */
+
+#define WMI_HOST_TBTT_OFFSET_INVALID 0xffffffff
+#define MAX_SUPPORTED_NEIGHBORS 16
+
+/* command type for WMI_PDEV_TBTT_OFFSET_SYNC_CMDID */
+enum wmi_host_tbtt_offset_cmd_type {
+	WMI_HOST_PDEV_GET_TBTT_OFFSET,
+	WMI_HOST_PDEV_SET_TBTT_OFFSET,
+};
 #endif /* _WMI_UNIFIED_PARAM_H_ */
diff --git a/wmi/inc/wmi_unified_priv.h b/wmi/inc/wmi_unified_priv.h
index 22a852782b..f505ca9b39 100644
--- a/wmi/inc/wmi_unified_priv.h
+++ b/wmi/inc/wmi_unified_priv.h
@@ -2239,6 +2239,9 @@ QDF_STATUS (*extract_vdev_mgmt_offload_event)(
 				struct mgmt_offload_event_params *params);
 #endif /* WLAN_FEATURE_PKT_CAPTURE */
 
+QDF_STATUS (*multisoc_tbtt_sync_cmd)(wmi_unified_t wmi_handle,
+				     struct rnr_tbtt_multisoc_sync_param *param);
+
 #ifdef FEATURE_WLAN_TIME_SYNC_FTM
 QDF_STATUS (*send_wlan_time_sync_ftm_trigger_cmd)(wmi_unified_t wmi_handle,
 						  uint32_t vdev_id,
diff --git a/wmi/inc/wmi_unified_vdev_api.h b/wmi/inc/wmi_unified_vdev_api.h
index b21950dde9..36cd628634 100644
--- a/wmi/inc/wmi_unified_vdev_api.h
+++ b/wmi/inc/wmi_unified_vdev_api.h
@@ -161,4 +161,15 @@ QDF_STATUS wmi_extract_multi_vdev_restart_resp_event(
 		struct wmi_unified *wmi_handle,
 		void *evt_buf,
 		struct multi_vdev_restart_resp *restart_rsp);
+
+/**
+ * wmi_unified_multisoc_tbtt_sync_cmd() - Send cmd to sync tbtt in multisoc case
+ * @wmi_handle: wmi handle
+ * @param: params received in rnr_tbtt_multisoc_sync_param
+ *
+ * Return: QDF_STATUS_SUCCESS on success and QDF_STATUS_E_FAILURE for failure
+ */
+QDF_STATUS
+wmi_unified_multisoc_tbtt_sync_cmd(wmi_unified_t wmi_handle,
+				   struct rnr_tbtt_multisoc_sync_param *param);
 #endif
diff --git a/wmi/src/wmi_unified_tlv.c b/wmi/src/wmi_unified_tlv.c
index 17447aad9d..d3c9a3d278 100644
--- a/wmi/src/wmi_unified_tlv.c
+++ b/wmi/src/wmi_unified_tlv.c
@@ -6729,6 +6729,12 @@ void wmi_copy_resource_config(wmi_resource_config *resource_cfg,
 	resource_cfg->num_max_sta_vdevs = tgt_res_cfg->num_max_sta_vdevs;
 	resource_cfg->max_bssid_indicator = tgt_res_cfg->max_bssid_indicator;
 	resource_cfg->max_num_group_keys = tgt_res_cfg->max_num_group_keys;
+	/* Deferred AI: Max rnr neighbors supported in multisoc case
+	 * where in SoC can support 6ghz. During WMI init of a SoC
+	 * currently there is no way to figure if another SOC is plugged in
+	 * and it can support 6Ghz.
+	 */
+	resource_cfg->max_rnr_neighbours = MAX_SUPPORTED_NEIGHBORS;
 	if (tgt_res_cfg->atf_config)
 		WMI_RSRC_CFG_FLAG_ATF_CONFIG_ENABLE_SET(resource_cfg->flag1, 1);
 	if (tgt_res_cfg->mgmt_comp_evt_bundle_support)
diff --git a/wmi/src/wmi_unified_vdev_api.c b/wmi/src/wmi_unified_vdev_api.c
index 3347f23c3e..ed47697e69 100644
--- a/wmi/src/wmi_unified_vdev_api.c
+++ b/wmi/src/wmi_unified_vdev_api.c
@@ -167,3 +167,13 @@ QDF_STATUS wmi_extract_multi_vdev_restart_resp_event(
 
 	return QDF_STATUS_E_FAILURE;
 }
+
+QDF_STATUS wmi_unified_multisoc_tbtt_sync_cmd(wmi_unified_t wmi_handle,
+			struct rnr_tbtt_multisoc_sync_param *param)
+{
+	if (wmi_handle->ops->multisoc_tbtt_sync_cmd)
+		return wmi_handle->ops->multisoc_tbtt_sync_cmd(wmi_handle,
+				param);
+
+	return QDF_STATUS_E_FAILURE;
+}