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_pci_remap_cfg* interface to make sure the correct
memory mappings for PCI configuration space are used.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
---
drivers/pci/dwc/pcie-armada8k.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/dwc/pcie-armada8k.c b/drivers/pci/dwc/pcie-armada8k.c
index 66bac6f..31f5cb1 100644
--- a/drivers/pci/dwc/pcie-armada8k.c
+++ b/drivers/pci/dwc/pcie-armada8k.c
@@ -228,7 +228,7 @@ static int armada8k_pcie_probe(struct platform_device *pdev)
/* Get the dw-pcie unit configuration/control registers base. */
base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl");
- pci->dbi_base = devm_ioremap_resource(dev, base);
+ pci->dbi_base = devm_pci_remap_cfg_resource(dev, base);
if (IS_ERR(pci->dbi_base)) {
dev_err(dev, "couldn't remap regs base %p\n", base);
ret = PTR_ERR(pci->dbi_base);
--
2.10.0
