diff --git a/drivers/pci/controller/pcie-tegra264-ep.c b/drivers/pci/controller/pcie-tegra264-ep.c
index 3c71b92e..cb9e96e4 100644
--- a/drivers/pci/controller/pcie-tegra264-ep.c
+++ b/drivers/pci/controller/pcie-tegra264-ep.c
@@ -545,12 +545,15 @@ static int tegra264_pcie_ep_start(struct pci_epc *epc)
 		gpiod_set_value_cansleep(pcie->pex_prsnt_gpiod, 1);
 	}
 
+	enable_irq(pcie->pex_rst_irq);
+
 	return 0;
 }
 
 static void tegra264_pcie_ep_stop(struct pci_epc *epc)
 {
 	struct tegra264_pcie_ep *pcie = epc_get_drvdata(epc);
+	disable_irq(pcie->pex_rst_irq);
 
 	if (pcie->pex_prsnt_gpiod) {
 		dev_dbg(pcie->dev, "Asserting PRSNT\n");
@@ -717,6 +720,7 @@ static int tegra264_pcie_ep_probe(struct platform_device *pdev)
 		dev_err(dev, "Failed to request IRQ for PERST: %d\n", ret);
 		return ret;
 	}
+	disable_irq(pcie->pex_rst_irq);
 
 	pcie->xal_base = devm_platform_ioremap_resource_byname(pdev, "xal");
 	if (IS_ERR(pcie->xal_base)) {
diff --git a/drivers/pci/controller/pcie-tegra264-ep.h b/drivers/pci/controller/pcie-tegra264-ep.h
index e58065b9..c0b187d8 100644
--- a/drivers/pci/controller/pcie-tegra264-ep.h
+++ b/drivers/pci/controller/pcie-tegra264-ep.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/* Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved */
+/* SPDX-License-Identifier: GPL-2.0-only*/
+/* SPDX-FileCopyrightText: Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.*/
 
 #ifndef PCIE_TEGRAT264_EP_H
 #define PCIE_TEGRAT264_EP_H
@@ -438,6 +438,7 @@ static int tegra264_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn,
  *   - reset GPIO is already de-asserted.
  *   - pre-conditions met.
  * - pex-prsnt GPIO is de-asserted if specified in CAL_NET_PIF$CalPcieEp.
+ * - pex-rst-irq is enabled.
  */
 static int tegra264_pcie_ep_start(struct pci_epc *epc);
 
@@ -468,6 +469,7 @@ static int tegra264_pcie_ep_start(struct pci_epc *epc);
  *  - De-initialization: Yes
  *
  * @outcome
+ * - pex-rst-irq is disabled.
  * - pex-prsnt GPIO is de-asserted if specified in CAL_NET_PIF$CalPcieEp.
  * - Tegra264 EP controller is de-initialized, if controller is initialized.
  */