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    Subject[PATCH v4 13/21] PCI: iproc-platform: update PCI config space remap function
    Date
    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@arm.com>
    Cc: Bjorn Helgaas <bhelgaas@google.com>
    Cc: Ray Jui <rjui@broadcom.com>
    Cc: Jon Mason <jonmason@broadcom.com>
    ---
    drivers/pci/host/pcie-iproc-platform.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c
    index 8c6a327..90d2bdd 100644
    --- a/drivers/pci/host/pcie-iproc-platform.c
    +++ b/drivers/pci/host/pcie-iproc-platform.c
    @@ -67,7 +67,8 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
    return ret;
    }

    - pcie->base = devm_ioremap(dev, reg.start, resource_size(&reg));
    + pcie->base = devm_pci_remap_cfgspace(dev, reg.start,
    + resource_size(&reg));
    if (!pcie->base) {
    dev_err(dev, "unable to map controller registers\n");
    return -ENOMEM;
    --
    2.10.0
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