diff --git a/wmi/inc/wmi_unified_cfr_api.h b/wmi/inc/wmi_unified_cfr_api.h
index aa457b905d..bffbd06cda 100644
--- a/wmi/inc/wmi_unified_cfr_api.h
+++ b/wmi/inc/wmi_unified_cfr_api.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2019, 2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -55,6 +55,20 @@ wmi_extract_cfr_peer_tx_event_param(wmi_unified_t wmi_handle, void *evt_buf,
  */
 QDF_STATUS wmi_unified_send_cfr_rcc_cmd(wmi_unified_t wmi_handle,
 					struct cfr_rcc_param *cfg);
+
+/**
+ * wmi_extract_cfr_pdev_phase_delta_event() - WMI function to extract the
+ * phase delta information.
+ * @wmi_handle: WMI handle
+ * @evt_buf: Buffer holding the event data
+ * @param: phase delta params to be updated from event
+ *
+ * Return: QDF_STATUS_SUCCESS if success, else returns proper error code.
+ */
+QDF_STATUS
+wmi_extract_cfr_pdev_phase_delta_event(wmi_unified_t wmi_handle,
+				       void *evt_buf,
+				       struct wmi_cfr_phase_delta_param *param);
 #endif
 #endif /* WLAN_CFR_ENABLE */
 #endif /* _WMI_UNIFIED_CFR_API_H_ */
diff --git a/wmi/inc/wmi_unified_param.h b/wmi/inc/wmi_unified_param.h
index 50d07a38ac..cde23a3155 100644
--- a/wmi/inc/wmi_unified_param.h
+++ b/wmi/inc/wmi_unified_param.h
@@ -401,6 +401,9 @@
 #define WMI_CONFIG_MSDU_AST_INDEX_2         0x2
 #define WMI_CONFIG_MSDU_AST_INDEX_3         0x3
 
+#define WMI_MAX_AOA_PHASE_DELTA 31
+#define WMI_MAX_CHAINS_PHASE 2
+
 #include "qdf_atomic.h"
 
 #ifdef BIG_ENDIAN_HOST
@@ -4680,6 +4683,7 @@ typedef enum {
 	wmi_vdev_smart_monitor_event_id,
 #endif
 	wmi_pdev_get_halphy_cal_status_event_id,
+	wmi_pdev_aoa_phasedelta_event_id,
 	wmi_events_max,
 } wmi_conv_event_id;
 
@@ -5270,6 +5274,7 @@ typedef enum {
 	wmi_service_halphy_cal_status,
 	wmi_service_rtt_ap_initiator_staggered_mode_supported,
 	wmi_service_rtt_ap_initiator_bursted_mode_supported,
+	wmi_service_aoa_for_rcc_supported,
 	wmi_services_max,
 } wmi_conv_service_ids;
 #define WMI_SERVICE_UNAVAILABLE 0xFFFF
@@ -7827,6 +7832,25 @@ typedef struct {
 	uint32_t gi_type;
 } wmi_cfr_peer_tx_event_param;
 
+/**
+ * struct wmi_cfr_phase_delta_param - AoA phase delta params
+ * @pdev_id: pdev id
+ * @freq: primary 20 MHz channel frequency in mhz
+ * @max_chains: indicates max chains for which AoA will be reported
+ * @chain_phase_mask: indicates the chains to which phase values are
+ * reported by target
+ * @phase_delta: phase delta associated with reported chain's each gain value
+ * ibf_cal_val: IBF values to be added with phase delta of chains reported
+ */
+struct wmi_cfr_phase_delta_param {
+	uint32_t pdev_id;
+	uint32_t freq;
+	uint32_t max_chains;
+	uint32_t chain_phase_mask;
+	uint32_t phase_delta[WMI_MAX_CHAINS_PHASE][WMI_MAX_AOA_PHASE_DELTA];
+	uint32_t ibf_cal_val[WMI_MAX_CHAINS_PHASE];
+};
+
 /**
  * struct wmi_host_oem_indirect_data - Indirect OEM data
  * @pdev_id: pdev id
diff --git a/wmi/inc/wmi_unified_priv.h b/wmi/inc/wmi_unified_priv.h
index 91d1f869bb..ef83a485d8 100644
--- a/wmi/inc/wmi_unified_priv.h
+++ b/wmi/inc/wmi_unified_priv.h
@@ -2574,6 +2574,13 @@ QDF_STATUS
 (*extract_install_key_comp_event)(wmi_unified_t wmi_handle,
 				  void *evt_buf, uint32_t len,
 				  struct wmi_install_key_comp_event *param);
+
+#ifdef WLAN_ENH_CFR_ENABLE
+QDF_STATUS
+(*extract_cfr_phase_param)(wmi_unified_t wmi_handle,
+			   void *evt_buf,
+			   struct wmi_cfr_phase_delta_param *param);
+#endif
 };
 
 /* Forward declartion for psoc*/
diff --git a/wmi/src/wmi_unified_cfr_api.c b/wmi/src/wmi_unified_cfr_api.c
index 8d727d7c48..4e2489220a 100644
--- a/wmi/src/wmi_unified_cfr_api.c
+++ b/wmi/src/wmi_unified_cfr_api.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2019-2021, The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -52,5 +52,17 @@ QDF_STATUS wmi_unified_send_cfr_rcc_cmd(wmi_unified_t wmi_handle,
 		return wmi_handle->ops->send_cfr_rcc_cmd(wmi_handle, cfg);
 	return QDF_STATUS_E_FAILURE;
 }
+
+QDF_STATUS
+wmi_extract_cfr_pdev_phase_delta_event(wmi_unified_t wmi_handle,
+				       void *evt_buf,
+				       struct wmi_cfr_phase_delta_param *param)
+{
+	if (wmi_handle->ops->extract_cfr_phase_param)
+		return wmi_handle->ops->extract_cfr_phase_param(wmi_handle,
+								evt_buf,
+								param);
+	return QDF_STATUS_E_FAILURE;
+}
 #endif /* WLAN_ENH_CFR_ENABLE */
 #endif /* WLAN_CFR_ENABLE */