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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2009-01-20 01:26:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@kvm.kroah.org> | 2009-01-28 01:15:32 +0100 |
| commit | a15d95a003fae154121733f049dd25e9c13dbef3 (patch) | |
| tree | 240642794b6ceb19f733cf93709cf5b223b146e9 /drivers/usb/host/ehci-pci.c | |
| parent | USB: don't enable wakeup by default for PCI host controllers (diff) | |
| download | linux-a15d95a003fae154121733f049dd25e9c13dbef3.tar.xz linux-a15d95a003fae154121733f049dd25e9c13dbef3.zip | |
USB: Fix suspend-resume of PCI USB controllers
Commit a0d4922da2e4ccb0973095d8d29f36f6b1b5f703
(USB: fix up suspend and resume for PCI host controllers) attempted
to fix the suspend-resume of PCI USB controllers, but unfortunately
it did that incorrectly and interrupts are left enabled by the USB
controllers' ->suspend_late() callback as a result. This leads to
serious problems during suspend which are very difficult to debug.
Fix the issue by removing the ->suspend_late() callback of PCI
USB controllers and moving the code from there to the ->suspend()
callback executed with interrupts enabled. Additionally, make
the ->resume() callback of PCI USB controllers execute
pci_enable_wake(dev, PCI_D0, false) to disable wake-up from the
full power state (PCI_D0).
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Andrey Borzenkov <arvidjaar@mail.ru>
Tested-by: "Jeff Chua" <jeff.chua.linux@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: "Zdenek Kabelac" <zdenek.kabelac@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci-pci.c')
| -rw-r--r-- | drivers/usb/host/ehci-pci.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 9faa5c8fe025..bb21fb0a4969 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -432,7 +432,6 @@ static struct pci_driver ehci_pci_driver = { #ifdef CONFIG_PM .suspend = usb_hcd_pci_suspend, - .suspend_late = usb_hcd_pci_suspend_late, .resume_early = usb_hcd_pci_resume_early, .resume = usb_hcd_pci_resume, #endif |