diff --git a/drivers/net/wireless/cnss2/pci.c b/drivers/net/wireless/cnss2/pci.c
index 7dc419753a80..099aa9d38bb8 100644
--- a/drivers/net/wireless/cnss2/pci.c
+++ b/drivers/net/wireless/cnss2/pci.c
@@ -56,6 +56,7 @@
 #ifdef CONFIG_PCI_MSM
 static DEFINE_SPINLOCK(pci_link_down_lock);
 #endif
+static DEFINE_SPINLOCK(pci_reg_window_lock);
 
 static unsigned int pci_link_down_panic;
 module_param(pci_link_down_panic, uint, 0600);
@@ -268,6 +269,18 @@ int cnss_pci_is_device_down(struct device *dev)
 }
 EXPORT_SYMBOL(cnss_pci_is_device_down);
 
+void cnss_pci_lock_reg_window(struct device *dev, unsigned long *flags)
+{
+	spin_lock_bh(&pci_reg_window_lock);
+}
+EXPORT_SYMBOL(cnss_pci_lock_reg_window);
+
+void cnss_pci_unlock_reg_window(struct device *dev, unsigned long *flags)
+{
+	spin_unlock_bh(&pci_reg_window_lock);
+}
+EXPORT_SYMBOL(cnss_pci_unlock_reg_window);
+
 int cnss_pci_recovery_update_status(struct cnss_pci_data *pci_priv)
 {
 	struct cnss_plat_data *plat_priv;
diff --git a/include/net/cnss2.h b/include/net/cnss2.h
index 5ed1b05277b1..4a541581f9d7 100644
--- a/include/net/cnss2.h
+++ b/include/net/cnss2.h
@@ -245,6 +245,9 @@ extern void cnss_request_pm_qos(struct device *dev, u32 qos_val);
 extern void cnss_remove_pm_qos(struct device *dev);
 extern void cnss_lock_pm_sem(struct device *dev);
 extern void cnss_release_pm_sem(struct device *dev);
+extern void cnss_pci_lock_reg_window(struct device *dev, unsigned long *flags);
+extern void cnss_pci_unlock_reg_window(struct device *dev,
+				       unsigned long *flags);
 extern int cnss_auto_suspend(struct device *dev);
 extern int cnss_auto_resume(struct device *dev);
 extern int cnss_pci_is_drv_connected(struct device *dev);