diff --git a/fw/wmi_tlv_defs.h b/fw/wmi_tlv_defs.h
index 064b02bc732a..c3b553a33fdc 100644
--- a/fw/wmi_tlv_defs.h
+++ b/fw/wmi_tlv_defs.h
@@ -867,6 +867,7 @@ typedef enum {
     WMITLV_TAG_STRUC_wmi_bcn_offload_ctrl_cmd_fixed_param,
     WMITLV_TAG_STRUC_wmi_pdev_set_ac_tx_queue_optimized_cmd_fixed_param,
     WMITLV_TAG_STRUC_wmi_stats_period,
+    WMITLV_TAG_STRUC_wmi_ndl_schedule_update_fixed_param,
 } WMITLV_TAG_ID;
 
 /*
@@ -1407,6 +1408,7 @@ typedef enum {
     OP(WMI_UNIT_TEST_EVENTID) \
     OP(WMI_PDEV_UPDATE_CTLTABLE_EVENTID) \
     OP(WMI_HOST_SWFDA_EVENTID) \
+    OP(WMI_NDL_SCHEDULE_UPDATE_EVENTID) \
     /* add new EVT_LIST elements above this line */
 
 
@@ -4184,11 +4186,13 @@ WMITLV_CREATE_PARAM_STRUC(WMI_NDP_INDICATION_EVENTID);
  * structure. The TLV's are:
  * A_UINT8 ndp_cfg[];
  * A_UINT8 ndp_app_info[];
+ * wmi_channel ndp_channel_list[];
  */
 #define WMITLV_TABLE_WMI_NDP_CONFIRM_EVENTID(id,op,buf,len) \
     WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_ndp_confirm_event_fixed_param, wmi_ndp_confirm_event_fixed_param_PROTOTYPE, fixed_param, WMITLV_SIZE_FIX) \
     WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_BYTE, A_UINT8, ndp_cfg, WMITLV_SIZE_VAR) \
-    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_BYTE, A_UINT8, ndp_app_info, WMITLV_SIZE_VAR)
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_BYTE, A_UINT8, ndp_app_info, WMITLV_SIZE_VAR) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_STRUC, wmi_channel, ndp_channel_list, WMITLV_SIZE_VAR)
 WMITLV_CREATE_PARAM_STRUC(WMI_NDP_CONFIRM_EVENTID);
 
 /** NDP end indication event
@@ -4201,6 +4205,18 @@ WMITLV_CREATE_PARAM_STRUC(WMI_NDP_CONFIRM_EVENTID);
     WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_STRUC, wmi_ndp_end_indication_PROTOTYPE, ndp_end_indication_list, WMITLV_SIZE_VAR)
 WMITLV_CREATE_PARAM_STRUC(WMI_NDP_END_INDICATION_EVENTID);
 
+/** NDL schedule update event
+ * TLV (tag lenght value ) parameters follow the ndl_schedule_update
+ * structure. The TLV's are:
+ * A_UINT32 ndp_instance_list[];
+ * wmi_channel ndl_channel_list[];
+ */
+#define WMITLV_TABLE_WMI_NDL_SCHEDULE_UPDATE_EVENTID(id,op,buf,len) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_ndl_schedule_update_fixed_param, wmi_ndl_schedule_update_fixed_param_PROTOTYPE, fixed_param, WMITLV_SIZE_FIX) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_UINT32, A_UINT32, ndp_instance_list, WMITLV_SIZE_VAR) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_STRUC, wmi_channel, ndl_channel_list, WMITLV_SIZE_VAR)
+WMITLV_CREATE_PARAM_STRUC(WMI_NDL_SCHEDULE_UPDATE_EVENTID);
+
 /* Update RCPI Info Event */
 #define WMITLV_TABLE_WMI_UPDATE_RCPI_EVENTID(id,op,buf,len) \
     WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_update_rcpi_event_fixed_param, wmi_update_rcpi_event_fixed_param, fixed_param, WMITLV_SIZE_FIX)
diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index e86592d57a68..5dfb33d4adfd 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -1581,6 +1581,7 @@ typedef enum {
     WMI_NDP_CONFIRM_EVENTID,
     WMI_NDP_END_INDICATION_EVENTID,
     WMI_WLAN_COEX_BT_ACTIVITY_EVENTID,
+    WMI_NDL_SCHEDULE_UPDATE_EVENTID,
 } WMI_EVT_ID;
 
 /* defines for OEM message sub-types */
@@ -15363,11 +15364,17 @@ typedef struct {
     A_UINT32 reason_code;
     /** Number of active ndps on this peer */
     A_UINT32 num_active_ndps_on_peer;
+    /** Number of channels on this peer */
+    A_UINT32 num_ndp_channels;
+    /** Number of spatial streams associated */
+    A_UINT32 nss_2g;
+    A_UINT32 nss_5g;
     /**
      * TLV (tag length value) parameters follow the ndp_confirm
      * structure. The TLV's are:
      * A_UINT8 ndp_cfg[];
      * A_UINT8 ndp_app_info[];
+     * wmi_channel ndp_channel_list[];
      */
 } wmi_ndp_confirm_event_fixed_param_PROTOTYPE;
 
@@ -15395,6 +15402,36 @@ typedef struct {
 
 #define wmi_ndp_end_indication wmi_ndp_end_indication_PROTOTYPE
 
+typedef struct
+{
+    A_UINT32 tlv_header; /* TLV tag and len; tag equals WMITLV_TAG_STRUC_wmi_ndl_schedule_update_fixed_param */
+    /** Unique id identifying the VDEV */
+    A_UINT32 vdev_id;
+   /** peer MAC address */
+    wmi_mac_addr peer_macaddr;
+   /** Flags:
+    *  Bit   0    -> Nss updated
+    *  Bit   1    -> channel list updated
+    *  Bits  2-31 -> Reserved
+    */
+    A_UINT32 flags;
+    /** num spatial streams associated */
+    A_UINT32 nss_2g;
+    A_UINT32 nss_5g;
+    /** num of channels */
+    A_UINT32 num_channels;
+    /** num of ndp instances */
+    A_UINT32 num_ndp_instances;
+    /**
+     * TLV (tag length value) parameters follow the ndl_schedule_update
+     * structure. The TLV's are:
+     * A_UINT32 ndp_instance_list[];
+     * wmi_channel ndl_channel_list[];
+     */
+} wmi_ndl_schedule_update_fixed_param_PROTOTYPE;
+
+#define wmi_ndl_schedule_update_fixed_param wmi_ndl_schedule_update_fixed_param_PROTOTYPE
+
 typedef struct {
     A_UINT32 tlv_header;
     A_UINT32 num_data;
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index b9cc5e948899..aaff9450ddb9 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_ 473
+#define __WMI_REVISION_ 474
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work