ARM/PCI: Move align_resource function pointer to pci_host_bridge structure
Commit b3a72384 ("ARM/PCI: Replace pci_sys_data->align_resource with global function pointer") introduced an ARM-specific align_resource() function pointer. This is not portable to other arches and doesn't work for platforms with two different PCIe host bridge controllers. Move the function pointer to the pci_host_bridge structure so each host bridge driver can specify its own align_resource() function. Signed-off-by: NGabriele Paoloni <gabriele.paoloni@huawei.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Reviewed-by: NArnd Bergmann <arnd@arndb.de>
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