[PATCH] USB: avoid OHCI autosuspend on some boxes
Don't try autosuspend if we think the hardware won't resume correctly from the OHCI suspend state. This makes the RWC bit serve double duty, but that appears to work OK, and the only penalty is increased power consumption (from OHCI clocks) on boards/chips that don't work right. For example, the amd756 erratum 4 workaround needs this logic; and at least one ServerWorks box issues spurious resume IRQs (~3x/second!) in the suspend state. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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