The patch titled
EHCI pci-quirks.c: don't wait so long for BIOS handoff
has been added to the -mm tree. Its filename is
ehci-pci-quirksc-dont-wait-so-long-for-bios-handoff.patch
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------------------------------------------------------
Subject: EHCI pci-quirks.c: don't wait so long for BIOS handoff
From: Steven Noonan <steven@xxxxxxxxxxxxxx>
Instead of waiting a painful 5000ms, quirk_usb_disable_ehci() now does a
1000ms loop to wait for the BIOS to acknowledge the handoff.
The five second delay is really quite irritating to have to deal with
every boot up, and I very seriously doubt any non-broken bios takes more
than a second to do the actual handoff.
Signed-off-by: Steven Noonan <steven@xxxxxxxxxxxxxx>
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Cc: David Brownell <david-b@xxxxxxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
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~ehci-pci-quirksc-dont-wait-so-long-for-bios-handoff drivers/usb/host/pci-quirks.c
--- a/drivers/usb/host/pci-quirks.c~ehci-pci-quirksc-dont-wait-so-long-for-bios-handoff
+++ 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 = 1000;
while ((cap & EHCI_USBLEGSUP_BIOS) && (msec > 0)) {
tried_handoff = 1;
msleep(10);
_
Patches currently in -mm which might be from steven@xxxxxxxxxxxxxx are
linux-next.patch
ehci-pci-quirksc-dont-wait-so-long-for-bios-handoff.patch
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