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| author | David Brownell <david-b@pacbell.net> | 2006-08-14 23:11:06 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-25 21:08:37 -0700 |
| commit | 185849991d592497e43bcd264c6152af1261ffe2 (patch) | |
| tree | 856077e37e40bbda2af95fe64aaa92db626f30de /drivers/usb/host/ohci-pci.c | |
| parent | c78a7c2dd913e68ce853d43edaba14eac91b2fd1 (diff) | |
| download | op-kernel-dev-185849991d592497e43bcd264c6152af1261ffe2.zip op-kernel-dev-185849991d592497e43bcd264c6152af1261ffe2.tar.gz | |
PM: USB HCDs use PM_EVENT_PRETHAW
This teaches several USB host controller drivers to treat PRETHAW as a chip
reset since the controller, and all devices connected to it, are no longer in
states compatible with how the snapshotted suspend() left them.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ohci-pci.c')
| -rw-r--r-- | drivers/usb/host/ohci-pci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index b268537..37e1228 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -135,6 +135,11 @@ static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message) } ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); (void)ohci_readl(ohci, &ohci->regs->intrdisable); + + /* make sure snapshot being resumed re-enumerates everything */ + if (message.event == PM_EVENT_PRETHAW) + ohci_usb_reset(ohci); + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); bail: spin_unlock_irqrestore (&ohci->lock, flags); |
