PCI: xgene: Configure PCIe MPS settings

Make sure PCIe MPS settings are valid when we enumerate a new hierarchy.

Based-on-patch-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 142a1669dd82..1a6108788f6f 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -635,7 +635,7 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
         struct device_node *dn = dev->of_node;
         struct xgene_pcie_port *port;
         resource_size_t iobase = 0;
-        struct pci_bus *bus;
+        struct pci_bus *bus, *child;
         int ret;
         LIST_HEAD(res);
 
@@ -678,6 +678,8 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
 
         pci_scan_child_bus(bus);
         pci_assign_unassigned_bus_resources(bus);
+        list_for_each_entry(child, &bus->children, node)
+                pcie_bus_configure_settings(child);
         pci_bus_add_devices(bus);
         return 0;