PCI: portdrv: Restore PCI config state on slot reset

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The port's config space may be cleared after a link reset, which wipes out
the bridge's bus and memory windows.  Restore the config space that was
saved during probe so we can access downstream devices.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>

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Keith Busch 2018-09-20 10:27:07 -06:00 • committed by Bjorn Helgaas

parent c29de84149

commit 874b325111

1 changed files with 8 additions and 0 deletions

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drivers/pci/pcie/portdrv_pci.c

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