diff options
| author | David Brownell <david-b@pacbell.net> | 2005-11-07 15:34:41 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-04 13:48:30 -0800 |
| commit | baefbc39d8e23942cc10db92f5bc42e3476f6bc1 (patch) | |
| tree | 58e3dcb5a768fb1e5d45dddecd676d25562e64e2 /drivers/usb | |
| parent | 0c8624f91d91df7cdeb9b2dace3269b8788c845f (diff) | |
[PATCH] USB: wakeup flag updates (2/3) uhci-hcd
This makes UHCI stop using the HCD glue wakeup flags to report whether
the controller can wake the system. The existing code was wrong anyway;
having a PCI PM capability doesn't imply it reports PME# is supported.
I skimmed Intel's ICH7 datasheet and that basically says the wakeup
signaling gets routed only through ACPI registers. (On the other hand,
many VIA chips provide the PCI PM capabilities...) I think that doing
this correctly with UHCI is going to require the ACPI folk to associate
the /proc/acpi/wakeup identifiers (and wakeup enable/disable flags)
with the relevant /sys/devices/pci*/... devices.
From: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/uhci-hcd.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 79efaf7d86a..5589d4010e3 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -478,8 +478,6 @@ static int uhci_start(struct usb_hcd *hcd) struct dentry *dentry; hcd->uses_new_polling = 1; - if (pci_find_capability(to_pci_dev(uhci_dev(uhci)), PCI_CAP_ID_PM)) - hcd->can_wakeup = 1; /* Assume it supports PME# */ dentry = debugfs_create_file(hcd->self.bus_name, S_IFREG|S_IRUGO|S_IWUSR, uhci_debugfs_root, uhci, |