diff --git a/wmi_unified_api.h b/wmi_unified_api.h
index e4f5cb2b64..7f92073701 100644
--- a/wmi_unified_api.h
+++ b/wmi_unified_api.h
@@ -2242,4 +2242,13 @@ QDF_STATUS wmi_unified_offload_11k_cmd(void *wmi_hdl,
 QDF_STATUS wmi_unified_invoke_neighbor_report_cmd(void *wmi_hdl,
 			struct wmi_invoke_neighbor_report_params *params);
 
+/* wmi_get_ch_width_from_phy_mode() - convert phy mode to channel width
+ * @wmi_hdl: wmi handle
+ * @phymode: phy mode
+ *
+ * Return: wmi channel width
+ */
+wmi_host_channel_width wmi_get_ch_width_from_phy_mode(void *wmi_hdl,
+					WMI_HOST_WLAN_PHY_MODE phymode);
+
 #endif /* _WMI_UNIFIED_API_H_ */
diff --git a/wmi_unified_param.h b/wmi_unified_param.h
index 8fef65234f..5a9c3f263f 100644
--- a/wmi_unified_param.h
+++ b/wmi_unified_param.h
@@ -404,6 +404,11 @@ typedef void *ol_scn_t;
 typedef int (*wmi_unified_event_handler)(ol_scn_t scn_handle,
 		 uint8_t *event_buf, uint32_t len);
 
+/**
+ * @WMI_HOST_WLAN_PHY_MODE: Host based enum ID for corresponding in
+ * WLAN_PHY_MODE. This should be consistent with WLAN_PHY_MODE always to avoid
+ * breaking the WMI
+ */
 typedef enum {
 	WMI_HOST_MODE_11A	= 0,   /* 11a Mode */
 	WMI_HOST_MODE_11G	= 1,   /* 11b/g Mode */