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Thomas Petazzoni authored
Commit ee160438 ("PCI: mvebu: Only remap I/O space if configured") had the side effect that the PCI I/O mapping was created much earlier than before, at a point where the probe() of the driver could still fail. This is for example a problem if one gets an -EPROBE_DEFER at some point during probe(), after pci_ioremap_io() has been called. Indeed, there is currently no function to undo what pci_ioremap_io() did, and switching to pci_remap_iospace() is not an option in pci-mvebu due to the need for special memory attributes on Armada 38x. Reverting ee160438 ("PCI: mvebu: Only remap I/O space if configured") would be a possibility, but it would require also reverting 42342073 ("PCI: mvebu: Convert to use pci_host_bridge directly"). So instead, we use an open-coded version of pci_host_probe() that creates the PCI I/O mapping at a point where we are guaranteed not to fail anymore. Fixes: ee160438 ("PCI: mvebu: Only remap I/O space if configured") Reported-by:
Jan Kundrát <jan.kundrat@cesnet.cz> Tested-by:
Jan Kundrát <jan.kundrat@cesnet.cz> Signed-off-by:
Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Acked-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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