The patch titled
drivers/usb/host/pci-quirks.c: wait for EHCI handoff far too long in quirk_usb_disable_ehci()
has been added to the -mm tree. Its filename is
drivers-usb-host-pci-quirksc-wait-for-ehci-handoff-far-too-long-in-quirk_usb_disable_ehci.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/usb/host/pci-quirks.c: wait for EHCI handoff far too long in quirk_usb_disable_ehci()
From: Steven Noonan <steven.noonan@xxxxxxxxxxxxxx>
Fix a very noticeable bootup delay on some systems (in my particular case,
an HP dv5178us). The problem is caused by a buggy BIOS which doesn't
properly announce that the handoff was completed.
The delay in the current version of pci-quirks.c is 5 seconds, which I've
cut down to 0.5 seconds.
Signed-off-by: Steven Noonan <steven@xxxxxxxxxxxxxx>
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/pci-quirks.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/usb/host/pci-quirks.c~drivers-usb-host-pci-quirksc-wait-for-ehci-handoff-far-too-long-in-quirk_usb_disable_ehci drivers/usb/host/pci-quirks.c
--- a/drivers/usb/host/pci-quirks.c~drivers-usb-host-pci-quirksc-wait-for-ehci-handoff-far-too-long-in-quirk_usb_disable_ehci
+++ a/drivers/usb/host/pci-quirks.c
@@ -271,7 +271,7 @@ static void __devinit quirk_usb_disable_
/* if boot firmware now owns EHCI, spin till
* it hands it over.
*/
- msec = 5000;
+ msec = 500;
while ((cap & EHCI_USBLEGSUP_BIOS) && (msec > 0)) {
tried_handoff = 1;
msleep(10);
_
Patches currently in -mm which might be from steven.noonan@xxxxxxxxxxxxxx are
drivers-usb-host-pci-quirksc-wait-for-ehci-handoff-far-too-long-in-quirk_usb_disable_ehci.patch
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