pxa27x_udc: Oops on probe with usb cable connected.

Antonio Ospite [off-list ref] writes:

On Thu, 22 Jul 2010 17:14:04 +0200
Antonio Ospite [off-list ref] wrote:

quoted

quoted

Now, the interrupt "storm" could block the kernel. That would rather be an host
issue. Did you try to connect your phone to another computer ?

I would ask for a last test : on the first line of function pxa_udc_probe(),
insert "return 0;". If kernel still stalls, the pxa27x-udc is not involved.

By inserting that "return 0;" the kernel goes on and I can complete
booting.

Too bad, pxa27x_udc has to be the culprit ...

Okay, I have a new track.
Would you apply the patch below and see if that improves your problem. This one
should:
 - disable the pullup line (and thus no irq should be triggered)
 - if an early irq is triggered anyway, don't handle it if no gadget driver was subscribed

-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch.txt
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100723/defe4b44/attachment.txt>
-------------- next part --------------

Cheers.

-- 
Robert