Re: [PATCH 0/4] musb fixes for v4.9-rc cycle

[Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>]

* Tomi Valkeinen <tomi.valkeinen-l0cyMroinI0@public.gmane.org> [161123 08:13]:
> On 23/11/16 17:57, Tony Lindgren wrote:
> > * Tomi Valkeinen <tomi.valkeinen-l0cyMroinI0@public.gmane.org> [161123 07:54]:
> >> On 23/11/16 17:49, Laurent Pinchart wrote:
> >>> Hi Tomi,
> >>>
> >>> On Wednesday 23 Nov 2016 12:14:17 Tomi Valkeinen wrote:
> >>>> On 10/11/16 23:25, Laurent Pinchart wrote:
> >>>>>>>> [    2.766174] musb_bus_suspend 2586: trying to suspend as a_idle while
> >>>>>>>> active
> >>>>>>>>
> >>>>>>>> printed in a loop at boot time. I've traced musb->is_active being set
> >>>>>>>> to 1 in musb_start() with
> >>>>>
> >>>>> Actually disabling CONFIG_USB_MUSB_HDRC gets rid of the problem, quite
> >>>>> understandably. It's not a fix though, just a workaround. Are you
> >>>>> interested in investigating this ?
> >>>>
> >>>> I'm seeing this too. Did you manage to boot your Panda? If I disable
> >>>> CONFIG_USB_MUSB_HDRC, I don't see that error print, but the ethernet
> >>>> doesn't work, and so my nfsroot doesn't mount.
> >>>
> >>> Do you use ethernet over USB gadget or over LAN9514 (smsx95xx) ? The LAN9514 
> >>> is connected to the EHCI USB interface so it shouldn't depend on MUSB.
> >>
> >> smsx95xx. I didn't look at it further, so possibly there's something
> >> else broken/changed that prevented the ethernet from working.
> > 
> > I have omap2plus_defconfig with initramfs work just fine for nfsroot
> > and musb peripheral mode on pandaboard es. Well I have not tried it
> > since last week with Linux next.
> 
> Ok, I found the issue. I had to enable CONFIG_NOP_USB_XCEIV. (the
> musb_bus_suspend issue is still there, though).

OK. And what changes to your current .config make the musb_bus_suspend()
issues show up?

If it happens with USB-B cable from host to musb with musb set to host
only mode I'm not suprised there are errors :)

Regards,

Tony
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