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authorAlan Stern <stern@rowland.harvard.edu>2010-07-14 11:03:23 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 14:35:40 -0700
commitae68a83bdc1971cb02fefc7a686ba6d077065e71 (patch)
treee69a504dcc97339afe531db8ec9e36b80fd37d30 /drivers/usb/host/ehci-pci.c
parent43b86af83da7db8b2c6d85ca970203950e5bad88 (diff)
downloadop-kernel-dev-ae68a83bdc1971cb02fefc7a686ba6d077065e71.zip
op-kernel-dev-ae68a83bdc1971cb02fefc7a686ba6d077065e71.tar.gz
USB: EHCI: remove PCI assumption
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>
Diffstat (limited to 'drivers/usb/host/ehci-pci.c')
-rw-r--r--drivers/usb/host/ehci-pci.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index f555e4f..58b72d7 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -114,6 +114,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
break;
case PCI_VENDOR_ID_INTEL:
ehci->need_io_watchdog = 0;
+ ehci->fs_i_thresh = 1;
if (pdev->device == 0x27cc) {
ehci->broken_periodic = 1;
ehci_info(ehci, "using broken periodic workaround\n");
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