On Tuesday, June 7, 2016 8:11:05 AM CEST Bjorn Helgaas wrote: > > > > What do you think is the correct behavior here, should the driver only > > request the PIO range with parent=ioport_resource, or should it also > > request the MMIO window for the I/O ports with parent=iomem_resource? > > In the latter case, any idea how that can be generalized? > > I think it should request both because I think iomem_resource should > contain everything in the memory map. This would be required if we ever > did any significant reassignment of top-level devices, e.g., ACPI devices. Ok. Should we try to pass the mmio resource for the I/O window to the devm_request_pci_bus_resources() function along with the other arguments then? As far as I can tell, it should not go into the resource list because it is not something the PCI core code should access the way it handles the other resources. Arnd
