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| author | Alan Stern <stern@rowland.harvard.edu> | 2008-04-14 12:17:10 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-04-24 21:16:53 -0700 |
| commit | 58a97ffeb2297f154659f339d77eb3f32c4d8b3e (patch) | |
| tree | 2ca171b7f720769007f9c9624b74ca4ad3442f02 /drivers/usb/host/ehci-pci.c | |
| parent | b950bdbc67041412cb042e404938667204c7902c (diff) | |
| download | op-kernel-dev-58a97ffeb2297f154659f339d77eb3f32c4d8b3e.zip op-kernel-dev-58a97ffeb2297f154659f339d77eb3f32c4d8b3e.tar.gz | |
USB: HCDs use the do_remote_wakeup flag
When a USB device is suspended, whether or not it is enabled for
remote wakeup depends on the device_may_wakeup() setting. The setting
is then saved in the do_remote_wakeup flag.
Later on, however, the device_may_wakeup() value can change because of
user activity. So when testing whether a suspended device is or
should be enabled for remote wakeup, we should always test
do_remote_wakeup instead of device_may_wakeup(). This patch (as1076)
makes that change for root hubs in several places.
The patch also adjusts uhci-hcd so that when an autostopped controller
is suspended, the remote wakeup setting agrees with the value recorded
in the root hub's do_remote_wakeup flag.
And the patch adjusts ehci-hcd so that wakeup events on selectively
suspended ports (i.e., the bus itself isn't suspended) don't turn on
the PME# wakeup signal.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index a0afc78..88dad4b 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -300,7 +300,7 @@ static int ehci_pci_resume(struct usb_hcd *hcd) if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF) { int mask = INTR_MASK; - if (!device_may_wakeup(&hcd->self.root_hub->dev)) + if (!hcd->self.root_hub->do_remote_wakeup) mask &= ~STS_PCD; ehci_writel(ehci, mask, &ehci->regs->intr_enable); ehci_readl(ehci, &ehci->regs->intr_enable); |
