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Rafael J. Wysocki dd7fd3a82c ACPI / hotplug / PCI: Runtime resume bridges before bus rescans 
If a PCI bridge (or PCIe port) that is runtime-suspended gets an ACPI
hotplug notification, such as a bus check, it has to be resumed before
re-scanning the devices below it, or those devices will not be
accessible and will be treated as hot-removed.

Make that happen and let the bridge suspend again after the bus below it
has been re-scanned.

This is a replacement for commit 16468c783c ("ACPI / hotplug / PCI:
Runtime resume bridge before rescan") that has been reverted, because it
introduced a system resume regression (due to missing bridge->pci_dev
checks that are necessary in case the notification is targeted at the
host bridge) and it is necessary for the code added by commit
006d44e49a ("PCI: Add runtime PM support for PCIe ports") to work as
expected.

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2016-08-04 21:33:58 -04:00
..
host Merge branches 'pci/host-aardvark', 'pci/host-altera', 'pci/host-dra7xx', 'pci/host-hv', 'pci/host-vmd' and 'pci/host-xilinx' into next 2016-08-01 12:32:13 -05:00
hotplug ACPI / hotplug / PCI: Runtime resume bridges before bus rescans 2016-08-04 21:33:58 -04:00
pcie Merge branches 'pci/aspm', 'pci/dpc', 'pci/hotplug', 'pci/misc', 'pci/msi', 'pci/pm' and 'pci/virtualization' into next 2016-08-01 12:23:31 -05:00
Kconfig
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Makefile
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access.c
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ats.c
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bus.c Merge branches 'pci/demodularize-hosts' and 'pci/host-request-windows' into next 2016-08-01 12:23:57 -05:00
ecam.c tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
host-bridge.c
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hotplug-pci.c
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htirq.c
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iov.c
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irq.c
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msi.c PCI: Spread interrupt vectors in pci_alloc_irq_vectors() 2016-07-21 15:57:03 -05:00
of.c
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pci-acpi.c
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pci-driver.c
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pci-label.c
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pci-mid.c
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pci-stub.c
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pci-sysfs.c
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pci.c PCI changes for the v4.8 merge window: 2016-08-02 17:12:29 -04:00
pci.h
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probe.c Merge branches 'pci/aspm', 'pci/dpc', 'pci/hotplug', 'pci/misc', 'pci/msi', 'pci/pm' and 'pci/virtualization' into next 2016-08-01 12:23:31 -05:00
proc.c
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quirks.c PCI: Add ACS quirk for Solarflare SFC9220 2016-07-29 17:28:24 -05:00
remove.c
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rom.c
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search.c
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setup-bus.c PCI changes for the v4.8 merge window: 2016-08-02 17:12:29 -04:00
setup-irq.c
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setup-res.c
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slot.c
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syscall.c
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vc.c
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vpd.c
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xen-pcifront.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00