[v1,2/3] PCI: versatile: Configure PCIe MPS settings

Commit Message

Bjorn Helgaas Feb. 8, 2017, 10:49 p.m. UTC

From: Bjorn Helgaas <[e-mail]>

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

Based-on-patch-by: Jon Mason <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
---
 drivers/pci/host/pci-versatile.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
index b7dc07002f13..5ebee7d37ff5 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -124,7 +124,7 @@  static int versatile_pci_probe(struct platform_device *pdev)
 	int ret, i, myslot = -1;
 	u32 val;
 	void __iomem *local_pci_cfg_base;
-	struct pci_bus *bus;
+	struct pci_bus *bus, *child;
 	LIST_HEAD(pci_res);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -204,6 +204,8 @@  static int versatile_pci_probe(struct platform_device *pdev)
 
 	pci_fixup_irqs(pci_common_swizzle, of_irq_parse_and_map_pci);
 	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;