Re: [08/15] usb: musb: Improve PM runtime and phy handling for 2430 glue layer

Laurent Pinchart
2016-09-09T18:33:35Z

Hi Tony,

On Friday 09 Sep 2016 10:24:47 Tony Lindgren wrote:
> * Laurent Pinchart <laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org> [160909 10:08]:
> > On Wednesday 11 May 2016 17:53:09 Tony Lindgren wrote:
> > > This simplifies things and allows idling both MUSB and PHY
> > > when nothing is configured. Let's just return early from PM
> > > runtime if musb is not yet initialized.
> > >
> > > Let's also warn if PHY is not configured.
> >
> > git bisect pointed out to this patch today when I tried to find out what
> > broke nfsroot over USB ethernet gadget on my Panda board :-/ Could you
> > help me debugging and fixing that ?
>
> OK, do you have commit 2c5575401e34 ("usb: musb: Fix locking errors for
> host only mode")? That's now in v4.8-rc5. Or which kernel are we talking
> about here?

I've originally ran into the issue on v4.8-rc2. I've then bisected the issue
to this commit, and confirmed that both v4.7 and v4.8-rc5 are broken.

--
Regards,

Laurent Pinchart