* Daniel Mack <daniel@xxxxxxxxxx> [140619 03:10]: > (+ George) > > On 06/19/2014 11:56 AM, Tony Lindgren wrote: > > Looks like commit ca88fc2ef0d7 (usb: musb: add a work_struct > > to recover from babble errors) causes MUSB gadgets to stop > > enumerating at least on omap3. Reverting the the commit fixes > > the issue. > > Hmm, so do you see babble errors occuring? Not that I noticed of. > Also, there are some more patches for musb and babble error recovery on > the usb list, namely the ones starting here in v6: > > http://marc.info/?l=linux-usb&m=140109627505065&w=4 > > Care to give them a try? I can confirm that "[PATCH v6 1/5] usb: musb: core: Handle Babble condition only in HOST mode" fixes the issue for me. Also the explanation in the patch description explains why it breaks, and probably for all gadgets too because "BABBLE and RESET share the same interrupt" so it's RESET in peripheral mode. But that also raises a question: Were these patches merged for v3.16 ever even tested in peripheral mode? Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
