[PATCH v7-incomplete 3/3] PCI: Unify ACPI and DT 'preserve config' support

[Bjorn Helgaas <helgaas@xxxxxxxxxx>]

From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

---
 drivers/pci/probe.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index ee086d029450..2c232c22d6af 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -894,6 +894,9 @@ static bool pci_preserve_config(struct pci_host_bridge *host_bridge)
 	if (pci_acpi_preserve_config(host_bridge))
 		return true;
 
+	if (host_bridge->dev.parent && host_bridge->dev.parent->of_node)
+		return of_pci_preserve_config(host_bridge->dev.parent->of_node);
+
 	return false;
 }
 
-- 
2.34.1