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: Mingkai Hu <mingkai.hu@xxxxxxxxxxxxx> Cc: Minghuan Lian <minghuan.Lian@xxxxxxxxxxxxx> Cc: Roy Zang <tie-fei.zang@xxxxxxxxxxxxx> --- drivers/pci/dwc/pci-layerscape.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/dwc/pci-layerscape.c index c32e392..8f0ee0d 100644 --- a/drivers/pci/dwc/pci-layerscape.c +++ b/drivers/pci/dwc/pci-layerscape.c @@ -283,7 +283,7 @@ static int __init ls_pcie_probe(struct platform_device *pdev) pcie->pci = pci; dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); - pci->dbi_base = devm_ioremap_resource(dev, dbi_base); + pci->dbi_base = devm_pci_remap_cfg_resource(dev, dbi_base); if (IS_ERR(pci->dbi_base)) return PTR_ERR(pci->dbi_base); -- 2.10.0
