diff --git a/drivers/pci/tph.c b/drivers/pci/tph.c
index ca4f97be7538..e896b3958281 100644
--- a/drivers/pci/tph.c
+++ b/drivers/pci/tph.c
@@ -407,10 +407,13 @@ int pcie_enable_tph(struct pci_dev *pdev, int mode)
 	else
 		pdev->tph_req_type = PCI_TPH_REQ_TPH_ONLY;
 
-	rp_req_type = get_rp_completer_type(pdev);
+	/* Check if the device is behind a Root Port */
+	if (pci_pcie_type(pdev) != PCI_EXP_TYPE_RC_END) {
+		rp_req_type = get_rp_completer_type(pdev);
 
-	/* Final req_type is the smallest value of two */
-	pdev->tph_req_type = min(pdev->tph_req_type, rp_req_type);
+		/* Final req_type is the smallest value of two */
+		pdev->tph_req_type = min(pdev->tph_req_type, rp_req_type);
+	}
 
 	if (pdev->tph_req_type == PCI_TPH_REQ_DISABLE)
 		return -EINVAL;