[PATCH] USB: fix EHCI early handoff issues

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This moves the previously widely-used ehci-pci.c BIOS handoff
code into the pci-quirks.c file, replacing the less widely used
"early handoff" version that seems to cause problems lately.

One notable change:  the "early handoff" version always enabled
an SMI IRQ ... and did so even if the pre-Linux code said it was
not using EHCI (and not expecting EHCI SMIs).  Looks like a goof
in a workaround for some unknown BIOS version.

This merged version only forcibly enables those IRQs when pre-Linux
code says it's using EHCI.  And now it always forces them off "just
in case".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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This commit is contained in:

David Brownell 2006-01-24 07:15:30 -08:00 • committed by Greg Kroah-Hartman

parent 3fa97c9db4

commit 401feafa62

2 changed files with 71 additions and 98 deletions

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63

drivers/usb/host/ehci-pci.c

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112

drivers/usb/host/pci-quirks.c

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