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    Subject[PATCH 5.10 031/530] PCI: keystone: Let AM65 use the pci_ops defined in pcie-designware-host.c
    Date
    From: Kishon Vijay Abraham I <kishon@ti.com>

    commit 3d0b2a3a87ce5ae85de46c4241afd52ab8b566fe upstream.

    Both TI's AM65x (K3) and TI's K2 PCIe driver are implemented in
    pci-keystone. However Only K2 PCIe driver should use it's own pci_ops
    for configuration space accesses. But commit 10a797c6e54a
    ("PCI: dwc: keystone: Use pci_ops for config space accessors") used
    custom pci_ops for both AM65x and K2. This breaks configuration space
    access for AM65x platform. Fix it here.

    Link: https://lore.kernel.org/r/20210317131518.11040-1-kishon@ti.com
    Fixes: 10a797c6e54a ("PCI: dwc: keystone: Use pci_ops for config space accessors")
    Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
    Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
    Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
    Cc: <stable@vger.kernel.org> # v5.10
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/pci/controller/dwc/pci-keystone.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/drivers/pci/controller/dwc/pci-keystone.c
    +++ b/drivers/pci/controller/dwc/pci-keystone.c
    @@ -811,7 +811,8 @@ static int __init ks_pcie_host_init(stru
    int ret;

    pp->bridge->ops = &ks_pcie_ops;
    - pp->bridge->child_ops = &ks_child_pcie_ops;
    + if (!ks_pcie->is_am6)
    + pp->bridge->child_ops = &ks_child_pcie_ops;

    ret = ks_pcie_config_legacy_irq(ks_pcie);
    if (ret)

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