diff --git a/drivers/net/wwan/t7xx/Makefile b/drivers/net/wwan/t7xx/Makefile
index dc6a7d682c15..df42764b3df8 100644
--- a/drivers/net/wwan/t7xx/Makefile
+++ b/drivers/net/wwan/t7xx/Makefile
@@ -17,4 +17,5 @@ mtk_t7xx-y:=	t7xx_pci.o \
 		t7xx_hif_dpmaif_tx.o \
 		t7xx_hif_dpmaif_rx.o  \
 		t7xx_dpmaif.o \
-		t7xx_netdev.o
+		t7xx_netdev.o \
+		t7xx_pci_rescan.o
diff --git a/drivers/net/wwan/t7xx/t7xx_modem_ops.c b/drivers/net/wwan/t7xx/t7xx_modem_ops.c
index ec2269dfaf2c..fb79d041dbf5 100644
--- a/drivers/net/wwan/t7xx/t7xx_modem_ops.c
+++ b/drivers/net/wwan/t7xx/t7xx_modem_ops.c
@@ -37,6 +37,7 @@
 #include "t7xx_modem_ops.h"
 #include "t7xx_netdev.h"
 #include "t7xx_pci.h"
+#include "t7xx_pci_rescan.h"
 #include "t7xx_pcie_mac.h"
 #include "t7xx_port.h"
 #include "t7xx_port_proxy.h"
@@ -192,6 +193,10 @@ static irqreturn_t t7xx_rgu_isr_thread(int irq, void *data)
 
 	msleep(RGU_RESET_DELAY_MS);
 	t7xx_reset_device_via_pmic(t7xx_dev);
+
+	if (!t7xx_dev->hp_enable)
+		t7xx_rescan_queue_work(t7xx_dev->pdev);
+
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/net/wwan/t7xx/t7xx_pci.c b/drivers/net/wwan/t7xx/t7xx_pci.c
index 871f2a27a398..2f5c6fbe601e 100644
--- a/drivers/net/wwan/t7xx/t7xx_pci.c
+++ b/drivers/net/wwan/t7xx/t7xx_pci.c
@@ -38,6 +38,7 @@
 #include "t7xx_mhccif.h"
 #include "t7xx_modem_ops.h"
 #include "t7xx_pci.h"
+#include "t7xx_pci_rescan.h"
 #include "t7xx_pcie_mac.h"
 #include "t7xx_reg.h"
 #include "t7xx_state_monitor.h"
@@ -715,8 +716,11 @@ static int t7xx_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return ret;
 	}
 
+	t7xx_rescan_done();
 	t7xx_pcie_mac_set_int(t7xx_dev, MHCCIF_INT);
 	t7xx_pcie_mac_interrupts_en(t7xx_dev);
+	if (!t7xx_dev->hp_enable)
+		pci_ignore_hotplug(pdev);
 
 	return 0;
 }
@@ -754,7 +758,52 @@ static struct pci_driver t7xx_pci_driver = {
 	.shutdown = t7xx_pci_shutdown,
 };
 
-module_pci_driver(t7xx_pci_driver);
+static int __init t7xx_pci_init(void)
+{
+	int ret;
+
+	t7xx_pci_dev_rescan();
+	ret = t7xx_rescan_init();
+	if (ret) {
+		pr_err("Failed to init t7xx rescan work\n");
+		return ret;
+	}
+
+	return pci_register_driver(&t7xx_pci_driver);
+}
+module_init(t7xx_pci_init);
+
+static int t7xx_always_match(struct device *dev, const void *data)
+{
+	return dev->parent->fwnode == data;
+}
+
+static void __exit t7xx_pci_cleanup(void)
+{
+	int remove_flag = 0;
+	struct device *dev;
+
+	dev = driver_find_device(&t7xx_pci_driver.driver, NULL, NULL, t7xx_always_match);
+	if (dev) {
+		pr_debug("unregister t7xx PCIe driver while device is still exist.\n");
+		put_device(dev);
+		remove_flag = 1;
+	} else {
+		pr_debug("no t7xx PCIe driver found.\n");
+	}
+
+	pci_lock_rescan_remove();
+	pci_unregister_driver(&t7xx_pci_driver);
+	pci_unlock_rescan_remove();
+	t7xx_rescan_deinit();
+
+	if (remove_flag) {
+		pr_debug("remove t7xx PCI device\n");
+		pci_stop_and_remove_bus_device_locked(to_pci_dev(dev));
+	}
+}
+
+module_exit(t7xx_pci_cleanup);
 
 MODULE_AUTHOR("MediaTek Inc");
 MODULE_DESCRIPTION("MediaTek PCIe 5G WWAN modem T7xx driver");
diff --git a/drivers/net/wwan/t7xx/t7xx_pci.h b/drivers/net/wwan/t7xx/t7xx_pci.h
index 50b37056ce5a..a87c4cae94ef 100644
--- a/drivers/net/wwan/t7xx/t7xx_pci.h
+++ b/drivers/net/wwan/t7xx/t7xx_pci.h
@@ -69,6 +69,7 @@ struct t7xx_pci_dev {
 	struct t7xx_modem	*md;
 	struct t7xx_ccmni_ctrl	*ccmni_ctlb;
 	bool			rgu_pci_irq_en;
+	bool			hp_enable;
 
 	/* Low Power Items */
 	struct list_head	md_pm_entities;
diff --git a/drivers/net/wwan/t7xx/t7xx_pci_rescan.c b/drivers/net/wwan/t7xx/t7xx_pci_rescan.c
new file mode 100644
index 000000000000..045777d8a843
--- /dev/null
+++ b/drivers/net/wwan/t7xx/t7xx_pci_rescan.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021, MediaTek Inc.
+ * Copyright (c) 2021-2022, Intel Corporation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ":t7xx:%s: " fmt, __func__
+#define dev_fmt(fmt) "t7xx: " fmt
+
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+
+#include "t7xx_pci.h"
+#include "t7xx_pci_rescan.h"
+
+static struct remove_rescan_context g_mtk_rescan_context;
+
+void t7xx_pci_dev_rescan(void)
+{
+	struct pci_bus *b = NULL;
+
+	pci_lock_rescan_remove();
+	while ((b = pci_find_next_bus(b)))
+		pci_rescan_bus(b);
+
+	pci_unlock_rescan_remove();
+}
+
+void t7xx_rescan_done(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&g_mtk_rescan_context.dev_lock, flags);
+	if (g_mtk_rescan_context.rescan_done == 0) {
+		pr_debug("this is a rescan probe\n");
+		g_mtk_rescan_context.rescan_done = 1;
+	} else {
+		pr_debug("this is a init probe\n");
+	}
+	spin_unlock_irqrestore(&g_mtk_rescan_context.dev_lock, flags);
+}
+
+static void t7xx_remove_rescan(struct work_struct *work)
+{
+	struct pci_dev *pdev;
+	int num_retries = RESCAN_RETRIES;
+	unsigned long flags;
+
+	spin_lock_irqsave(&g_mtk_rescan_context.dev_lock, flags);
+	g_mtk_rescan_context.rescan_done = 0;
+	pdev = g_mtk_rescan_context.dev;
+	spin_unlock_irqrestore(&g_mtk_rescan_context.dev_lock, flags);
+
+	if (pdev) {
+		pci_stop_and_remove_bus_device_locked(pdev);
+		pr_debug("start remove and rescan flow\n");
+	}
+
+	do {
+		t7xx_pci_dev_rescan();
+		spin_lock_irqsave(&g_mtk_rescan_context.dev_lock, flags);
+		if (g_mtk_rescan_context.rescan_done) {
+			spin_unlock_irqrestore(&g_mtk_rescan_context.dev_lock, flags);
+			break;
+		}
+
+		spin_unlock_irqrestore(&g_mtk_rescan_context.dev_lock, flags);
+		msleep(DELAY_RESCAN_MTIME);
+	} while (num_retries--);
+}
+
+void t7xx_rescan_queue_work(struct pci_dev *pdev)
+{
+	unsigned long flags;
+
+	dev_info(&pdev->dev, "start queue_mtk_rescan_work\n");
+	spin_lock_irqsave(&g_mtk_rescan_context.dev_lock, flags);
+	if (!g_mtk_rescan_context.rescan_done) {
+		dev_err(&pdev->dev, "rescan failed because last rescan undone\n");
+		spin_unlock_irqrestore(&g_mtk_rescan_context.dev_lock, flags);
+		return;
+	}
+
+	g_mtk_rescan_context.dev = pdev;
+	spin_unlock_irqrestore(&g_mtk_rescan_context.dev_lock, flags);
+	queue_work(g_mtk_rescan_context.pcie_rescan_wq, &g_mtk_rescan_context.service_task);
+}
+
+int t7xx_rescan_init(void)
+{
+	spin_lock_init(&g_mtk_rescan_context.dev_lock);
+	g_mtk_rescan_context.rescan_done = 1;
+	g_mtk_rescan_context.dev = NULL;
+	g_mtk_rescan_context.pcie_rescan_wq = create_singlethread_workqueue(MTK_RESCAN_WQ);
+	if (!g_mtk_rescan_context.pcie_rescan_wq) {
+		pr_err("Failed to create workqueue: %s\n", MTK_RESCAN_WQ);
+		return -ENOMEM;
+	}
+
+	INIT_WORK(&g_mtk_rescan_context.service_task, t7xx_remove_rescan);
+
+	return 0;
+}
+
+void t7xx_rescan_deinit(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&g_mtk_rescan_context.dev_lock, flags);
+	g_mtk_rescan_context.rescan_done = 0;
+	g_mtk_rescan_context.dev = NULL;
+	spin_unlock_irqrestore(&g_mtk_rescan_context.dev_lock, flags);
+	cancel_work_sync(&g_mtk_rescan_context.service_task);
+	destroy_workqueue(g_mtk_rescan_context.pcie_rescan_wq);
+}
diff --git a/drivers/net/wwan/t7xx/t7xx_pci_rescan.h b/drivers/net/wwan/t7xx/t7xx_pci_rescan.h
new file mode 100644
index 000000000000..de4ca1363bb0
--- /dev/null
+++ b/drivers/net/wwan/t7xx/t7xx_pci_rescan.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only
+ *
+ * Copyright (c) 2021, MediaTek Inc.
+ * Copyright (c) 2021-2022, Intel Corporation.
+ */
+
+#ifndef __T7XX_PCI_RESCAN_H__
+#define __T7XX_PCI_RESCAN_H__
+
+#define MTK_RESCAN_WQ "mtk_rescan_wq"
+
+#define DELAY_RESCAN_MTIME 1000
+#define RESCAN_RETRIES 35
+
+struct remove_rescan_context {
+	struct work_struct	 service_task;
+	struct workqueue_struct *pcie_rescan_wq;
+	spinlock_t		dev_lock; /* protects device */
+	struct pci_dev		*dev;
+	int			rescan_done;
+};
+
+void t7xx_pci_dev_rescan(void);
+void t7xx_rescan_queue_work(struct pci_dev *pdev);
+int t7xx_rescan_init(void);
+void t7xx_rescan_deinit(void);
+void t7xx_rescan_done(void);
+
+#endif	/* __T7XX_PCI_RESCAN_H__ */
diff --git a/drivers/net/wwan/t7xx/t7xx_port_wwan.c b/drivers/net/wwan/t7xx/t7xx_port_wwan.c
index e53651ee2005..dfd7fb487fc0 100644
--- a/drivers/net/wwan/t7xx/t7xx_port_wwan.c
+++ b/drivers/net/wwan/t7xx/t7xx_port_wwan.c
@@ -156,6 +156,12 @@ static void t7xx_port_wwan_md_state_notify(struct t7xx_port *port, unsigned int
 {
 	const struct t7xx_port_conf *port_conf = port->port_conf;
 
+	if (state == MD_STATE_EXCEPTION) {
+		if (port->wwan_port)
+			wwan_port_txoff(port->wwan_port);
+		return;
+	}
+
 	if (state != MD_STATE_READY)
 		return;
 
diff --git a/drivers/net/wwan/t7xx/t7xx_state_monitor.c b/drivers/net/wwan/t7xx/t7xx_state_monitor.c
index c1789a558c9d..9c222809371b 100644
--- a/drivers/net/wwan/t7xx/t7xx_state_monitor.c
+++ b/drivers/net/wwan/t7xx/t7xx_state_monitor.c
@@ -35,9 +35,11 @@
 #include "t7xx_hif_cldma.h"
 #include "t7xx_mhccif.h"
 #include "t7xx_modem_ops.h"
+#include "t7xx_netdev.h"
 #include "t7xx_pci.h"
 #include "t7xx_pcie_mac.h"
 #include "t7xx_port_proxy.h"
+#include "t7xx_pci_rescan.h"
 #include "t7xx_reg.h"
 #include "t7xx_state_monitor.h"