diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
index e06f42f58d3d..c583a90fa90d 100644
--- a/drivers/pci/pcie/dpc.c
+++ b/drivers/pci/pcie/dpc.c
@@ -22,6 +22,7 @@ struct dpc_dev {
 	u16			cap_pos;
 	bool			rp_extensions;
 	u8			rp_log_size;
+	bool			edr_enabled; /* EDR mode is supported */
 };
 
 static const char * const rp_pio_error_string[] = {
@@ -69,6 +70,14 @@ void pci_save_dpc_state(struct pci_dev *dev)
 	if (!dpc)
 		return;
 
+	/*
+	 * If DPC is controlled by firmware then save/restore tasks are also
+	 * controlled by firmware. So skip rest of the function if DPC is
+	 * controlled by firmware.
+	 */
+	if (dpc->edr_enabled)
+		return;
+
 	save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_DPC);
 	if (!save_state)
 		return;
@@ -90,6 +99,14 @@ void pci_restore_dpc_state(struct pci_dev *dev)
 	if (!dpc)
 		return;
 
+	/*
+	 * If DPC is controlled by firmware then save/restore tasks are also
+	 * controlled by firmware. So skip rest of the function if DPC is
+	 * controlled by firmware.
+	 */
+	if (dpc->edr_enabled)
+		return;
+
 	save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_DPC);
 	if (!save_state)
 		return;
@@ -291,24 +308,48 @@ static int dpc_probe(struct pcie_device *dev)
 	int status;
 	u16 ctl, cap;
 
-	if (pcie_aer_get_firmware_first(pdev) && !pcie_ports_dpc_native)
-		return -ENOTSUPP;
-
 	dpc = devm_kzalloc(device, sizeof(*dpc), GFP_KERNEL);
 	if (!dpc)
 		return -ENOMEM;
 
 	dpc->cap_pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DPC);
 	dpc->dev = dev;
+
+	/*
+	 * As per PCIe r5.0, sec 6.2.10, implementation note titled
+	 * "Determination of DPC Control", to avoid conflicts over whether
+	 * platform firmware or the operating system have control of DPC,
+	 * it is recommended that platform firmware and operating systems
+	 * always link the control of DPC to the control of Advanced Error
+	 * Reporting.
+	 *
+	 * So use AER FF mode check API pcie_aer_get_firmware_first() to decide
+	 * whether DPC is controlled by software or firmware. And EDR support
+	 * can only be enabled if DPC is controlled by firmware.
+	 */
+
+	if (pcie_aer_get_firmware_first(pdev) && !pcie_ports_dpc_native)
+		dpc->edr_enabled = 1;
+
+	/*
+	 * If DPC is handled in firmware and ACPI support is not enabled
+	 * in OS, skip probe and return error.
+	 */
+	if (dpc->edr_enabled && !IS_ENABLED(CONFIG_ACPI))
+		return -ENODEV;
+
 	set_service_data(dev, dpc);
 
-	status = devm_request_threaded_irq(device, dev->irq, dpc_irq,
-					   dpc_handler, IRQF_SHARED,
-					   "pcie-dpc", dpc);
-	if (status) {
-		pci_warn(pdev, "request IRQ%d failed: %d\n", dev->irq,
-			 status);
-		return status;
+	/* Register interrupt handler only if OS controls DPC */
+	if (!dpc->edr_enabled) {
+		status = devm_request_threaded_irq(device, dev->irq, dpc_irq,
+						   dpc_handler, IRQF_SHARED,
+						   "pcie-dpc", dpc);
+		if (status) {
+			pci_warn(pdev, "request IRQ%d failed: %d\n", dev->irq,
+				 status);
+			return status;
+		}
 	}
 
 	pci_read_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CAP, &cap);
@@ -323,9 +364,12 @@ static int dpc_probe(struct pcie_device *dev)
 			dpc->rp_log_size = 0;
 		}
 	}
-
-	ctl = (ctl & 0xfff4) | PCI_EXP_DPC_CTL_EN_FATAL | PCI_EXP_DPC_CTL_INT_EN;
-	pci_write_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CTL, ctl);
+	if (!dpc->edr_enabled) {
+		ctl = (ctl & 0xfff4) |
+			(PCI_EXP_DPC_CTL_EN_FATAL | PCI_EXP_DPC_CTL_INT_EN);
+		pci_write_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CTL,
+				      ctl);
+	}
 
 	pci_info(pdev, "error containment capabilities: Int Msg #%d, RPExt%c PoisonedTLP%c SwTrigger%c RP PIO Log %d, DL_ActiveErr%c\n",
 		 cap & PCI_EXP_DPC_IRQ, FLAG(cap, PCI_EXP_DPC_CAP_RP_EXT),
@@ -343,6 +387,10 @@ static void dpc_remove(struct pcie_device *dev)
 	struct pci_dev *pdev = dev->port;
 	u16 ctl;
 
+	/* Skip updating DPC registers if DPC is controlled by firmware */
+	if (dpc->edr_enabled)
+		return;
+
 	pci_read_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CTL, &ctl);
 	ctl &= ~(PCI_EXP_DPC_CTL_EN_FATAL | PCI_EXP_DPC_CTL_INT_EN);
 	pci_write_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CTL, ctl);
