Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

USB: EHCI pci-quirks.c: don't wait so long for BIOS handoff

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@uplinklabs.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

authored by

Steven Noonan and committed by
Greg Kroah-Hartman
d859bffc 92b0da15

+1 -1
+1 -1
drivers/usb/host/pci-quirks.c
··· 271 271 /* if boot firmware now owns EHCI, spin till 272 272 * it hands it over. 273 273 */ 274 - msec = 5000; 274 + msec = 1000; 275 275 while ((cap & EHCI_USBLEGSUP_BIOS) && (msec > 0)) { 276 276 tried_handoff = 1; 277 277 msleep(10);