ChangeSet 1.1807.48.40, 2004/08/05 14:59:35-07:00, [EMAIL PROTECTED]
[PATCH] USB: ehci and buggy BIOS handoff
Be more forgiving of buggy BIOS code, which never hands the
EHCI controller to Linux.
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
drivers/usb/host/ehci-hcd.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff -Nru a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
--- a/drivers/usb/host/ehci-hcd.c 2004-08-23 13:18:31 -07:00
+++ b/drivers/usb/host/ehci-hcd.c 2004-08-23 13:18:31 -07:00
@@ -289,7 +289,7 @@
static int bios_handoff (struct ehci_hcd *ehci, int where, u32 cap)
{
if (cap & (1 << 16)) {
- int msec = 500;
+ int msec = 5000;
struct pci_dev *pdev = to_pci_dev(ehci->hcd.self.controller);
/* request handoff to OS */
@@ -305,7 +305,10 @@
if (cap & (1 << 16)) {
ehci_err (ehci, "BIOS handoff failed (%d, %04x)\n",
where, cap);
- return 1;
+ // some BIOS versions seem buggy...
+ // return 1;
+ ehci_warn (ehci, "continuing after BIOS bug...\n");
+ return 0;
}
ehci_dbg (ehci, "BIOS handoff succeeded\n");
}
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