Hello.
Greg Kroah-Hartman wrote:
From: Jason Wessel <jason.wessel@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: dbrownell@xxxxxxxxxxxxxxxxxxxxx
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
[...]
index 6b5e4d1..1b6f1c0 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -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())
Why check ehci->debug twice? :-/
+ ehci->debug = NULL;
+ else
+ dbgp_external_startup();
+ }
+
WBR, Sergei
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