PCI configuration space should be mapped with a memory region type that
generates on the CPU host bus non-posted write transations. Update the
driver to use the devm_ioremap_nopost* interface to make sure the correct
memory mappings for PCI configuration space are used.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieral...@arm.com>
Cc: Bjorn Helgaas <bhelg...@google.com>
Cc: Rob Herring <r...@kernel.org>
---
drivers/pci/host/pci-versatile.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
index 5ebee7d..60fd396 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -138,7 +138,8 @@ static int versatile_pci_probe(struct platform_device *pdev)
return PTR_ERR(versatile_cfg_base[0]);
res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- versatile_cfg_base[1] = devm_ioremap_resource(&pdev->dev, res);
+ versatile_cfg_base[1] = devm_ioremap_nopost_resource(&pdev->dev,
+ res);
if (IS_ERR(versatile_cfg_base[1]))
return PTR_ERR(versatile_cfg_base[1]);
--
2.10.0
