diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 86961551ec51..2f7e7e186b47 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2910,6 +2910,8 @@ void pci_config_pm_runtime_put(struct pci_dev *pdev)
  */
 bool pci_suspend_retains_context(struct pci_dev *pdev)
 {
+	struct pci_host_bridge *bridge = pci_find_host_bridge(pdev->bus);
+
 	/*
 	 * If the platform firmware (like ACPI) is involved at the end of
 	 * system suspend, device context may not be retained.
@@ -2917,6 +2919,16 @@ bool pci_suspend_retains_context(struct pci_dev *pdev)
 	if (pm_suspend_via_firmware())
 		return false;
 
+	/*
+	 * Some host bridges power off the PHY to enter deep low-power
+	 * modes during system suspend. Exiting L1SS from this condition
+	 * may violate timing requirements and result in Link Down (LDn),
+	 * which causes a reset of the device.  On such platforms, the
+	 * endpoint must be prepared for context loss.
+	 */
+	if (bridge && bridge->broken_l1ss_resume)
+		return false;
+
 	/* Assume that the context is retained by default */
 	return true;
 }
diff --git a/include/linux/pci.h b/include/linux/pci.h
index f60f9e4e7b39..4fee00ec59d7 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -660,6 +660,8 @@ struct pci_host_bridge {
 	unsigned int	preserve_config:1;	/* Preserve FW resource setup */
 	unsigned int	size_windows:1;		/* Enable root bus sizing */
 	unsigned int	msi_domain:1;		/* Bridge wants MSI domain */
+	unsigned int	broken_l1ss_resume:1;	/* Resuming from L1SS during
+						   system suspend is broken */
 
 	/* Resource alignment requirements */
 	resource_size_t (*align_resource)(struct pci_dev *dev,