Re: DWC3 runtime suspend on cable disconnect while UDC is active

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On Thu, 2024-11-21 at 12:34 +0000, André Draszik wrote:
> Unfortunately, this only works once: After restoring those bits and
> reconnecting the cable, USB comes up as expected, but a subsequent
> disconnect with the same sequence as during the first disconnect doesn't
> trigger the DWC3_DEVICE_EVENT_DISCONNECT event anymore (others still
> happen,
> like DWC3_DEVICE_EVENT_SUSPEND).
> 
> Kinda looks to me like either I'm still missing something, or e.g. the
> event
> is somehow masked.
> 
> I anybody aware of anything related by any chance?

Hm, the missing DWC3_DEVICE_EVENT_DISCONNECT event comes when I insert the
cable another time, i.e. after the DWC3 driver has reconfigured everything
after cable attach. This throws everything off of course.

Looks like still something wrong in phy/dwc3 interaction in the Exynos case.
I'll debug a bit more.


Cheers,
Andre'






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