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USB: EHCI: remove PCI assumption

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This patch (as1405) fixes a small bug in ehci-hcd's isochronous
scheduler.  Not all EHCI controllers are PCI, and the code shouldn't
assume that they are.  Instead, introduce a special flag for
controllers which need to delay iso scheduling for full-speed devices
beyond the scheduling threshold.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Sarah Sharp <sarah.a.sharp@linux.intel.com>
CC: David Brownell <david-b@pacbell.net>
CC: stable <stable@kernel.org>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Alan Stern
2010-07-14 11:03:23 -04:00
committed by Greg Kroah-Hartman
parent 43b86af83d
commit ae68a83bdc
3 changed files with 6 additions and 6 deletions
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1
drivers/usb/host/ehci.h
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@@ -130,6 +130,7 @@ struct ehci_hcd { /* one per controller */
unsigned has_amcc_usb23:1;
unsigned need_io_watchdog:1;
unsigned broken_periodic:1;
unsigned fs_i_thresh:1; /* Intel iso scheduling */
/* required for usb32 quirk */
#define OHCI_CTRL_HCFS (3 << 6)