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    Subject[RFC PATCH v2 12/32] PCI/ARM: use PCIe capabilities access functions to simplify implementation
    Date
    From: Jiang Liu <jiang.liu@huawei.com>

    Use PCIe capabilities access functions to simplify PCIe ARM implementation.

    Signed-off-by: Jiang Liu <liuj97@gmail.com>
    ---
    arch/arm/mach-tegra/pcie.c | 7 +++----
    1 file changed, 3 insertions(+), 4 deletions(-)

    diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c
    index 0e09137..e41e64d 100644
    --- a/arch/arm/mach-tegra/pcie.c
    +++ b/arch/arm/mach-tegra/pcie.c
    @@ -368,16 +368,15 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0bf1, tegra_pcie_fixup_class);
    static void __devinit tegra_pcie_relax_enable(struct pci_dev *dev)
    {
    u16 val16;
    - int pos = pci_find_capability(dev, PCI_CAP_ID_EXP);

    - if (pos <= 0) {
    + if (!pci_is_pcie(dev)) {
    dev_err(&dev->dev, "skipping relaxed ordering fixup\n");
    return;
    }

    - pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &val16);
    + pci_pcie_capability_read_word(dev, PCI_EXP_DEVCTL, &val16);
    val16 |= PCI_EXP_DEVCTL_RELAX_EN;
    - pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, val16);
    + pci_pcie_capability_write_word(dev, PCI_EXP_DEVCTL, val16);
    }
    DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, tegra_pcie_relax_enable);

    --
    1.7.9.5


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