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USB: UHCI: disable remote wakeup when it's not needed
This patch (as1084b) fixes the way uhci-hcd handles polling and remote wakeups for its root hubs. When remote wakeup is disabled, neither interrupts nor polling should be enabled during a root-hub suspend. Likewise, if interrupts are enabled during suspend then polling isn't needed. Furthermore the EGSM (Enter Global Suspend Mode) bit shouldn't be set in the Command register unless remote wakeup is enabled. Apparently some controllers will issue a remote-wakeup interrupt whenever EGSM is on, even if Resume-Detect interrupts are supposedly disabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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