linux_dsm_epyc7002/drivers/usb/core
Rafael J. Wysocki 3494252d56 USB/PCI: Fix resume breakage of controllers behind cardbus bridges
If a USB PCI controller is behind a cardbus bridge, we are trying to
restore its configuration registers too early, before the cardbus
bridge is operational.  To fix this, call pci_restore_state() from
usb_hcd_pci_resume() and remove usb_hcd_pci_resume_early() which is
no longer necessary (the configuration spaces of USB controllers that
are not behind cardbus bridges will be restored by the PCI PM core
with interrupts disabled anyway).

This patch fixes the regression from 2.6.28 tracked as
http://bugzilla.kernel.org/show_bug.cgi?id=12659

[ Side note: the proper long-term fix is probably to just force the
  unplug event at suspend time instead of doing a plug/unplug at resume
  time, but this patch is fine regardless  - Linus ]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-17 16:56:31 -08:00
..
buffer.c USB: fix codingstyle issues in drivers/usb/core/*.c 2008-02-01 14:35:08 -08:00
config.c USB: ehci tolerates some buggy devices 2008-04-24 21:16:35 -07:00
devices.c usb: hub: add check for unsupported bus topology 2008-07-21 15:16:26 -07:00
devio.c USB: fix char-device disconnect handling 2009-01-27 16:15:32 -08:00
driver.c USB: fix toggle mismatch in disable_endpoint paths 2009-01-27 16:15:32 -08:00
endpoint.c USB: utilize the bus notifiers 2009-01-07 10:00:08 -08:00
file.c USB: remove err() macro from usb core code 2008-10-17 14:41:11 -07:00
generic.c USB: Enhance usage of pm_message_t 2009-01-07 10:00:03 -08:00
hcd-pci.c USB/PCI: Fix resume breakage of controllers behind cardbus bridges 2009-02-17 16:56:31 -08:00
hcd.c USB: mark "reject" field of struct urb as atomic_t 2009-01-07 10:00:08 -08:00
hcd.h USB/PCI: Fix resume breakage of controllers behind cardbus bridges 2009-02-17 16:56:31 -08:00
hub.c USB: fix toggle mismatch in disable_endpoint paths 2009-01-27 16:15:32 -08:00
hub.h wusb: make ep0_reinit available for modules 2008-04-24 21:16:59 -07:00
inode.c USB: fix char-device disconnect handling 2009-01-27 16:15:32 -08:00
Kconfig usb core: fix USB_OTG_BLACKLIST_HUB typo 2008-10-17 14:40:54 -07:00
Makefile USB: add a blacklist for devices that can't handle some things we throw at them. 2007-02-23 15:03:46 -08:00
message.c USB: fix toggle mismatch in disable_endpoint paths 2009-01-27 16:15:32 -08:00
notify.c USB : correct comments in usb/core/notify.c 2008-02-01 14:34:44 -08:00
otg_whitelist.h USB: fix codingstyle issues in drivers/usb/core/*.h 2008-02-01 14:35:07 -08:00
quirks.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2008-06-17 18:10:40 -07:00
sysfs.c USB: utilize the bus notifiers 2009-01-07 10:00:08 -08:00
urb.c USB: extension of anchor API to unpoison an anchor 2009-01-07 10:00:11 -08:00
usb.c USB: re-enable interface after driver unbinds 2009-01-07 10:00:13 -08:00
usb.h USB: fix char-device disconnect handling 2009-01-27 16:15:32 -08:00