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USB: ehci-dbgp,ehci: Allow dbpg to work with suspend/resume

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In order for the dbgp driver to survive suspend/resume, on every ehci
resume operation the debug controller must get re-initialized.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: dbrownell@users.sourceforge.net
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jason Wessel 2009-08-20 15:39:58 -05:00 committed by Greg Kroah-Hartman
parent 9780bc41dc
commit ad45f1dc83
1 changed files with 7 additions and 0 deletions
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7
drivers/usb/host/ehci-hub.c
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@ -235,6 +235,13 @@ static int ehci_bus_resume (struct usb_hcd *hcd)
return -ESHUTDOWN;
}
if (unlikely(ehci->debug)) {
if (ehci->debug && !dbgp_reset_prep())
ehci->debug = NULL;
else
dbgp_external_startup();
}
/* Ideally and we've got a real resume here, and no port's power
* was lost. (For PCI, that means Vaux was maintained.) But we
* could instead be restoring a swsusp snapshot -- so that BIOS was