diff --git a/core/hdd/inc/wlan_hdd_main.h b/core/hdd/inc/wlan_hdd_main.h
index cfed2a2e36be..70319000c20b 100644
--- a/core/hdd/inc/wlan_hdd_main.h
+++ b/core/hdd/inc/wlan_hdd_main.h
@@ -1787,7 +1787,7 @@ struct hdd_context {
 #ifdef FEATURE_WLAN_AP_AP_ACS_OPTIMIZE
 	qdf_mc_timer_t skip_acs_scan_timer;
 	uint8_t skip_acs_scan_status;
-	uint8_t *last_acs_channel_list;
+	uint32_t *last_acs_freq_list;
 	uint8_t num_of_channels;
 	qdf_spinlock_t acs_skip_lock;
 #endif
diff --git a/core/hdd/src/wlan_hdd_hostapd.c b/core/hdd/src/wlan_hdd_hostapd.c
index fe96bcc1296b..5fbf0d4aa588 100644
--- a/core/hdd/src/wlan_hdd_hostapd.c
+++ b/core/hdd/src/wlan_hdd_hostapd.c
@@ -1192,7 +1192,7 @@ static QDF_STATUS hdd_handle_acs_scan_event(struct sap_event *sap_event,
 	struct hdd_context *hdd_ctx;
 	struct sap_acs_scan_complete_event *comp_evt;
 	QDF_STATUS qdf_status;
-	int chan_list_size;
+	int freq_list_size;
 
 	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
 	if (!hdd_ctx) {
@@ -1202,22 +1202,22 @@ static QDF_STATUS hdd_handle_acs_scan_event(struct sap_event *sap_event,
 	comp_evt = &sap_event->sapevt.sap_acs_scan_comp;
 	hdd_ctx->skip_acs_scan_status = eSAP_SKIP_ACS_SCAN;
 	qdf_spin_lock(&hdd_ctx->acs_skip_lock);
-	qdf_mem_free(hdd_ctx->last_acs_channel_list);
-	hdd_ctx->last_acs_channel_list = NULL;
+	qdf_mem_free(hdd_ctx->last_acs_freq_list);
+	hdd_ctx->last_acs_freq_list = NULL;
 	hdd_ctx->num_of_channels = 0;
 	/* cache the previous ACS scan channel list .
 	 * If the following OBSS scan chan list is covered by ACS chan list,
 	 * we can skip OBSS Scan to save SAP starting total time.
 	 */
-	if (comp_evt->num_of_channels && comp_evt->channellist) {
-		chan_list_size = comp_evt->num_of_channels *
-			sizeof(comp_evt->channellist[0]);
-		hdd_ctx->last_acs_channel_list = qdf_mem_malloc(
-			chan_list_size);
-		if (hdd_ctx->last_acs_channel_list) {
-			qdf_mem_copy(hdd_ctx->last_acs_channel_list,
-				comp_evt->channellist,
-				chan_list_size);
+	if (comp_evt->num_of_channels && comp_evt->freq_list) {
+		freq_list_size = comp_evt->num_of_channels *
+			sizeof(comp_evt->freq_list[0]);
+		hdd_ctx->last_acs_freq_list = qdf_mem_malloc(
+			freq_list_size);
+		if (hdd_ctx->last_acs_freq_list) {
+			qdf_mem_copy(hdd_ctx->last_acs_freq_list,
+				     comp_evt->freq_list,
+				     freq_list_size);
 			hdd_ctx->num_of_channels = comp_evt->num_of_channels;
 		}
 	}
diff --git a/core/hdd/src/wlan_hdd_main.c b/core/hdd/src/wlan_hdd_main.c
index cb3be839db74..08e02a28844a 100644
--- a/core/hdd/src/wlan_hdd_main.c
+++ b/core/hdd/src/wlan_hdd_main.c
@@ -7684,8 +7684,8 @@ void hdd_wlan_exit(struct hdd_context *hdd_ctx)
 		hdd_err("Cannot deallocate ACS Skip timer");
 	}
 	qdf_spin_lock(&hdd_ctx->acs_skip_lock);
-	qdf_mem_free(hdd_ctx->last_acs_channel_list);
-	hdd_ctx->last_acs_channel_list = NULL;
+	qdf_mem_free(hdd_ctx->last_acs_freq_list);
+	hdd_ctx->last_acs_freq_list = NULL;
 	hdd_ctx->num_of_channels = 0;
 	qdf_spin_unlock(&hdd_ctx->acs_skip_lock);
 #endif
@@ -7785,8 +7785,8 @@ static void hdd_skip_acs_scan_timer_handler(void *data)
 	hdd_debug("ACS Scan result expired. Reset ACS scan skip");
 	hdd_ctx->skip_acs_scan_status = eSAP_DO_NEW_ACS_SCAN;
 	qdf_spin_lock(&hdd_ctx->acs_skip_lock);
-	qdf_mem_free(hdd_ctx->last_acs_channel_list);
-	hdd_ctx->last_acs_channel_list = NULL;
+	qdf_mem_free(hdd_ctx->last_acs_freq_list);
+	hdd_ctx->last_acs_freq_list = NULL;
 	hdd_ctx->num_of_channels = 0;
 	qdf_spin_unlock(&hdd_ctx->acs_skip_lock);
 
diff --git a/core/hdd/src/wlan_hdd_scan.c b/core/hdd/src/wlan_hdd_scan.c
index f183e38b7c91..12a05e991757 100644
--- a/core/hdd/src/wlan_hdd_scan.c
+++ b/core/hdd/src/wlan_hdd_scan.c
@@ -231,9 +231,9 @@ static bool wlan_hdd_sap_skip_scan_check(struct hdd_context *hdd_ctx,
 	if (hdd_ctx->skip_acs_scan_status != eSAP_SKIP_ACS_SCAN)
 		return false;
 	qdf_spin_lock(&hdd_ctx->acs_skip_lock);
-	if (!hdd_ctx->last_acs_channel_list ||
-	   hdd_ctx->num_of_channels == 0 ||
-	   request->n_channels == 0) {
+	if (!hdd_ctx->last_acs_freq_list ||
+	    hdd_ctx->num_of_channels == 0 ||
+	    request->n_channels == 0) {
 		qdf_spin_unlock(&hdd_ctx->acs_skip_lock);
 		return false;
 	}
@@ -242,16 +242,16 @@ static bool wlan_hdd_sap_skip_scan_check(struct hdd_context *hdd_ctx,
 		bool find = false;
 
 		for (j = 0; j < hdd_ctx->num_of_channels; j++) {
-			if (hdd_ctx->last_acs_channel_list[j] ==
-			   request->channels[i]->hw_value) {
+			if (hdd_ctx->last_acs_freq_list[j] ==
+			    request->channels[i]->center_freq) {
 				find = true;
 				break;
 			}
 		}
 		if (!find) {
 			skip = false;
-			hdd_debug("Chan %d isn't in ACS chan list",
-				request->channels[i]->hw_value);
+			hdd_debug("Freq %d isn't in ACS freq list",
+				  request->channels[i]->center_freq);
 			break;
 		}
 	}
diff --git a/core/sap/inc/sap_api.h b/core/sap/inc/sap_api.h
index 58d6094068d0..807bb47e8c37 100644
--- a/core/sap/inc/sap_api.h
+++ b/core/sap/inc/sap_api.h
@@ -355,12 +355,12 @@ struct sap_ch_selected_s {
 /**
  * struct sap_acs_scan_complete_event - acs scan complete event
  * @status: status of acs scan
- * @channellist: acs scan channels
+ * @freq_list: acs scan channel frequency list
  * @num_of_channels: number of channels
  */
 struct sap_acs_scan_complete_event {
 	uint8_t status;
-	uint8_t *channellist;
+	uint32_t *freq_list;
 	uint8_t num_of_channels;
 };
 
diff --git a/core/sap/src/sap_api_link_cntl.c b/core/sap/src/sap_api_link_cntl.c
index ed0fb64f5b76..5f28397ca706 100644
--- a/core/sap/src/sap_api_link_cntl.c
+++ b/core/sap/src/sap_api_link_cntl.c
@@ -282,14 +282,14 @@ QDF_STATUS wlansap_pre_start_bss_acs_scan_callback(mac_handle_t mac_handle,
 	sap_ctx->sap_status = eSAP_STATUS_SUCCESS;
 close_session:
 #ifdef SOFTAP_CHANNEL_RANGE
-	if (sap_ctx->channelList) {
+	if (sap_ctx->freq_list) {
 		/*
 		* Always free up the memory for
 		* channel selection whatever
 		* the result
 		*/
-		qdf_mem_free(sap_ctx->channelList);
-		sap_ctx->channelList = NULL;
+		qdf_mem_free(sap_ctx->freq_list);
+		sap_ctx->freq_list = NULL;
 		sap_ctx->num_of_channel = 0;
 	}
 #endif
diff --git a/core/sap/src/sap_ch_select.c b/core/sap/src/sap_ch_select.c
index e02b76cb10f0..e84944dd6bfb 100644
--- a/core/sap/src/sap_ch_select.c
+++ b/core/sap/src/sap_ch_select.c
@@ -695,7 +695,8 @@ static bool sap_chan_sel_init(mac_handle_t mac_handle,
 			for (chan_num = 0; chan_num < sap_ctx->num_of_channel;
 			     chan_num++) {
 				if (pSpectCh->chNum !=
-				    sap_ctx->channelList[chan_num])
+				    wlan_reg_freq_to_chan(mac->pdev,
+						  sap_ctx->freq_list[chan_num]))
 					continue;
 
 				/*
@@ -1698,7 +1699,8 @@ static void sap_compute_spect_weight(tSapChSelSpectInfo *pSpectInfoParams,
 		 */
 		found = false;
 		for (i = 0; i < sap_ctx->num_of_channel; i++) {
-			if (pSpectCh->chNum == sap_ctx->channelList[i]) {
+			if (pSpectCh->chNum == wlan_reg_freq_to_chan(mac->pdev,
+						       sap_ctx->freq_list[i])) {
 			/* Scan channel was included in ACS scan list */
 				found = true;
 				break;
diff --git a/core/sap/src/sap_fsm.c b/core/sap/src/sap_fsm.c
index 7a8ba54bfc2f..d6ce794e3e54 100644
--- a/core/sap/src/sap_fsm.c
+++ b/core/sap/src/sap_fsm.c
@@ -85,9 +85,9 @@ extern sapSafeChannelType safe_channels[];
  * Static Function Declarations and Definitions
  * -------------------------------------------------------------------------*/
 #ifdef SOFTAP_CHANNEL_RANGE
-static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
-				       uint8_t **ch_list,
-				       uint8_t *num_ch);
+static QDF_STATUS sap_get_freq_list(struct sap_context *sap_ctx,
+				    uint32_t **freq_list,
+				    uint8_t *num_ch);
 #endif
 
 /*==========================================================================
@@ -935,7 +935,7 @@ QDF_STATUS sap_channel_sel(struct sap_context *sap_context)
 	uint8_t pdev_id;
 
 #ifdef SOFTAP_CHANNEL_RANGE
-	uint8_t *channel_list = NULL;
+	uint32_t *freq_list = NULL;
 	uint8_t num_of_channels = 0;
 #endif
 	mac_handle_t mac_handle;
@@ -1022,7 +1022,7 @@ QDF_STATUS sap_channel_sel(struct sap_context *sap_context)
 	req->scan_req.scan_req_id = sap_context->req_id;
 	req->scan_req.scan_priority = SCAN_PRIORITY_HIGH;
 	req->scan_req.scan_f_bcast_probe = true;
-	sap_get_channel_list(sap_context, &channel_list, &num_of_channels);
+	sap_get_freq_list(sap_context, &freq_list, &num_of_channels);
 
 #ifdef FEATURE_WLAN_AP_AP_ACS_OPTIMIZE
 	if (num_of_channels != 0) {
@@ -1030,14 +1030,13 @@ QDF_STATUS sap_channel_sel(struct sap_context *sap_context)
 
 		req->scan_req.chan_list.num_chan = num_of_channels;
 		for (i = 0; i < num_of_channels; i++)
-			req->scan_req.chan_list.chan[i].freq =
-				wlan_chan_to_freq(channel_list[i]);
-		if (sap_context->channelList) {
-			qdf_mem_free(sap_context->channelList);
-			sap_context->channelList = NULL;
+			req->scan_req.chan_list.chan[i].freq = freq_list[i];
+		if (sap_context->freq_list) {
+			qdf_mem_free(sap_context->freq_list);
+			sap_context->freq_list = NULL;
 			sap_context->num_of_channel = 0;
 		}
-		sap_context->channelList = channel_list;
+		sap_context->freq_list = freq_list;
 		sap_context->num_of_channel = num_of_channels;
 		/* Set requestType to Full scan */
 		QDF_TRACE(QDF_MODULE_ID_SAP, QDF_TRACE_LEVEL_INFO_HIGH,
@@ -1056,12 +1055,12 @@ QDF_STATUS sap_channel_sel(struct sap_context *sap_context)
 					sap_context->acs_cfg);
 
 #ifdef SOFTAP_CHANNEL_RANGE
-			if (sap_context->channelList) {
+			if (sap_context->freq_list) {
 				sap_context->channel =
-					sap_context->channelList[0];
-				qdf_mem_free(sap_context->
-					channelList);
-				sap_context->channelList = NULL;
+					wlan_reg_freq_to_chan(mac_ctx->pdev,
+						     sap_context->freq_list[0]);
+				qdf_mem_free(sap_context->freq_list);
+				sap_context->freq_list = NULL;
 				sap_context->num_of_channel = 0;
 			}
 #endif
@@ -1344,8 +1343,8 @@ static void sap_handle_acs_scan_event(struct sap_context *sap_context,
 	sap_event->sapevt.sap_acs_scan_comp.status = status;
 	sap_event->sapevt.sap_acs_scan_comp.num_of_channels =
 			sap_context->num_of_channel;
-	sap_event->sapevt.sap_acs_scan_comp.channellist =
-			sap_context->channelList;
+	sap_event->sapevt.sap_acs_scan_comp.freq_list =
+			sap_context->freq_list;
 }
 #else
 static void sap_handle_acs_scan_event(struct sap_context *sap_context,
@@ -3311,21 +3310,21 @@ QDF_STATUS sap_is_peer_mac_allowed(struct sap_context *sap_ctx,
 
 #ifdef SOFTAP_CHANNEL_RANGE
 /**
- * sap_get_channel_list() - get the list of channels
+ * sap_get_freq_list() - get the list of channel frequency
  * @sap_ctx: sap context
- * @ch_list: pointer to channel list array
+ * @freq_list: pointer to channel list array
  * @num_ch: pointer to number of channels.
  *
- * This function populates the list of channels for scanning.
+ * This function populates the list of channel frequency for scanning.
  *
  * Return: QDF_STATUS
  */
-static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
-				       uint8_t **ch_list,
-				       uint8_t *num_ch)
+static QDF_STATUS sap_get_freq_list(struct sap_context *sap_ctx,
+				    uint32_t **freq_list,
+				    uint8_t *num_ch)
 {
 	uint8_t loop_count;
-	uint8_t *list;
+	uint32_t *list;
 	uint8_t ch_count;
 	uint8_t dfs_master_enable;
 	uint8_t start_ch_num, band_start_ch;
@@ -3342,7 +3341,7 @@ static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
 	if (!mac_ctx) {
 		QDF_TRACE_ERROR(QDF_MODULE_ID_SAP, "Invalid MAC context");
 		*num_ch = 0;
-		*ch_list = NULL;
+		*freq_list = NULL;
 		return QDF_STATUS_E_FAULT;
 	}
 
@@ -3377,10 +3376,11 @@ static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
 	}
 
 	/* Allocate the max number of channel supported */
-	list = qdf_mem_malloc(NUM_5GHZ_CHANNELS + NUM_24GHZ_CHANNELS);
+	list = qdf_mem_malloc((NUM_5GHZ_CHANNELS + NUM_24GHZ_CHANNELS) *
+			      sizeof(uint32_t));
 	if (!list) {
 		*num_ch = 0;
-		*ch_list = NULL;
+		*freq_list = NULL;
 		return QDF_STATUS_E_NOMEM;
 	}
 
@@ -3473,8 +3473,8 @@ static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
 			 ch <= sap_ctx->acs_cfg->skip_scan_range1_endch) ||
 			(ch >= sap_ctx->acs_cfg->skip_scan_range2_stch &&
 			 ch <= sap_ctx->acs_cfg->skip_scan_range2_endch)) {
-			list[ch_count] =
-				WLAN_REG_CH_NUM(loop_count);
+			list[ch_count] = wlan_reg_chan_to_freq(mac_ctx->pdev,
+				WLAN_REG_CH_NUM(loop_count));
 			ch_count++;
 			QDF_TRACE(QDF_MODULE_ID_SAP,
 				QDF_TRACE_LEVEL_INFO,
@@ -3487,8 +3487,8 @@ static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
 				ch_count, ch);
 		    }
 		} else {
-			list[ch_count] =
-				WLAN_REG_CH_NUM(loop_count);
+			list[ch_count] = wlan_reg_chan_to_freq(mac_ctx->pdev,
+				WLAN_REG_CH_NUM(loop_count));
 			ch_count++;
 			QDF_TRACE(QDF_MODULE_ID_SAP,
 				QDF_TRACE_LEVEL_INFO,
@@ -3496,7 +3496,8 @@ static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
 				ch_count, ch);
 		}
 #else
-		list[ch_count] = WLAN_REG_CH_NUM(loop_count);
+		list[ch_count] = wlan_reg_chan_to_freq(mac_ctx->pdev,
+						   WLAN_REG_CH_NUM(loop_count));
 		ch_count++;
 #endif
 #ifdef FEATURE_WLAN_CH_AVOID
@@ -3521,15 +3522,15 @@ static QDF_STATUS sap_get_channel_list(struct sap_context *sap_ctx,
 	/* return the channel list and number of channels to scan */
 	*num_ch = ch_count;
 	if (ch_count != 0) {
-		*ch_list = list;
+		*freq_list = list;
 	} else {
-		*ch_list = NULL;
+		*freq_list = NULL;
 		qdf_mem_free(list);
 	}
 
 	for (loop_count = 0; loop_count < ch_count; loop_count++) {
 		QDF_TRACE(QDF_MODULE_ID_SAP, QDF_TRACE_LEVEL_DEBUG,
-			FL("channel number: %d"), list[loop_count]);
+			FL("channel frequency: %d"), list[loop_count]);
 	}
 	return QDF_STATUS_SUCCESS;
 }
diff --git a/core/sap/src/sap_internal.h b/core/sap/src/sap_internal.h
index cc4a25dfba48..51153d4c2807 100644
--- a/core/sap/src/sap_internal.h
+++ b/core/sap/src/sap_internal.h
@@ -166,7 +166,7 @@ struct sap_context {
 	uint32_t nStaWPARSnReqIeLength;
 	uint8_t pStaWpaRsnReqIE[MAX_ASSOC_IND_IE_LEN];
 
-	uint8_t *channelList;
+	uint32_t *freq_list;
 	uint8_t num_of_channel;
 	uint16_t ch_width_orig;
 	struct ch_params ch_params;
diff --git a/core/sap/src/sap_module.c b/core/sap/src/sap_module.c
index 2167e5e3fad1..047dd90dd09a 100644
--- a/core/sap/src/sap_module.c
+++ b/core/sap/src/sap_module.c
@@ -200,9 +200,9 @@ void wlansap_context_put(struct sap_context *ctx)
 	for (i = 0; i < SAP_MAX_NUM_SESSION; i++) {
 		if (gp_sap_ctx[i] == ctx) {
 			if (qdf_atomic_dec_and_test(&sap_ctx_ref_count[i])) {
-				if (ctx->channelList) {
-					qdf_mem_free(ctx->channelList);
-					ctx->channelList = NULL;
+				if (ctx->freq_list) {
+					qdf_mem_free(ctx->freq_list);
+					ctx->freq_list = NULL;
 					ctx->num_of_channel = 0;
 				}
 				qdf_mem_free(ctx);
@@ -398,9 +398,9 @@ QDF_STATUS sap_deinit_ctx(struct sap_context *sap_ctx)
 	}
 	ucfg_scan_unregister_requester(mac->psoc, sap_ctx->req_id);
 
-	if (sap_ctx->channelList) {
-		qdf_mem_free(sap_ctx->channelList);
-		sap_ctx->channelList = NULL;
+	if (sap_ctx->freq_list) {
+		qdf_mem_free(sap_ctx->freq_list);
+		sap_ctx->freq_list = NULL;
 		sap_ctx->num_of_channel = 0;
 	}
 	sap_free_roam_profile(&sap_ctx->csr_roamProfile);