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(parent: adebaa4) | patch
PCI: portdrv: Restore PCI config state on slot reset
authorKeith Busch <keith.busch@intel.com>
Thu, 20 Sep 2018 16:27:07 +0000 (10:27 -0600)
committerBjorn Helgaas <bhelgaas@google.com>
Thu, 20 Sep 2018 21:06:18 +0000 (16:06 -0500)
commite9974b26750230c2f0e68339f737ffb44f9535fd
tree21dc0001d4f94374f306dd64f4fe7e10bbefc75etree | snapshot
parentadebaa4612d7f4f44105e98fbf3b6b0da854958dcommit | diff
PCI: portdrv: Restore PCI config state on slot reset

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>
drivers/pci/pcie/portdrv_pci.c diff | blob | history
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