Re: unhandled interrupt from otg port

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On Tuesday 19 February 2013 23:12:53 Marc Dietrich wrote:
> Stephen,
> 
> On Tuesday 19 February 2013 10:03:47 Stephen Warren wrote:
> > On 02/17/2013 04:48 AM, Marc Dietrich wrote:
> > > Hi,
> > > 
> > > I sometimes see unhandled irq from the otg port on my AC100 (kernel 3.8.0-rc7).
> > > This happens randomly when the a cable is pluged into the mini usb port. Seems
> > > the port generates an interrupt on probe which isn't handled.
> > 
> > Perhaps Venu can explain this; he is our USB expert.
> > 
> > > Any ideas?
> > 
> > I'm slightly confused by your description though; I assume this problem
> > happens when you boot with a USB cable already plugged in, not when you
> > first boot the system, then plug in a cable? Is the cable connected to a
> > host PC, or to a device?
> 
> the cable is connected to a host PC. It is not shown when connecting after the
> system has booted. Unfortunately, I cannot generate the error reproducible, e.g.
> I just tried 10 times and nothing was shown. Maybe just forget it for now if
> no one has an obvious idea. I'll try to find some reproducable situation and will
> report back.

arr, just found it: it happens when you load an uboot image via tegrarcm first - so this
could be a kernel or uboot problem.

Marc



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