PCI: dwc: Use generic config accessors
Now that all the platforms with custom config access handling define their own pci_ops, let's split the default config accessors to use different pci_ops for root and child buses. With this, we can use the generic config accessors. The child bus accesses mainly require a .map_bus() hook to reconfigure the iATU on each config space access. Link: https://lore.kernel.org/r/20200821035420.380495-14-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Jingoo Han <jingoohan1@gmail.com> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com>
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