RE: linux-next: manual merge of the usb tree with the omap tree
From: Anand Gadiyar
Date: Fri Jan 07 2011 - 10:21:00 EST
Ming Lei wrote:
> Ming Lei wrote:
> > 2011/1/7 Anand Gadiyar <gadiyar@xxxxxx>:
> > > Hi Ming Lei,
> > >
> > > I'm able to reproduce this on my panda, and I have it working as of
> > > linux-next-20101221 (the last version I tested last year) and
> > > on linux-next-20101227 (which was the very next linux-next release).
> > >
> > > Not sure why, but my Panda manages to get the VID:PID of the hub as
> > > well, while yours does not even get there.
> > >
> > > I may need a few more hours to debug this, unless someone beats me
> > > to it. ;)
> > Is it caused by the below?
> > [ 46.580200] ehci-omap ehci-omap.0: failed to get ehci port0
> Nope. We don't set up any regulators for the PHY on Panda (at least not
> And the working case (next-20101221) has the same log.
> I suspect the PHY doesn't get reset for the proper duration; I'm looking
> for something in that area. (Another option is to bisect between the two
> versions, but I'm not sure if that's any easier).
Update: I disabled CONFIG_OMAP_RESET_CLOCKS and the PHY and other
connected devices enumerate just fine. Could you try this out on
your board as well?
I'll look deeper and see if there are some required clocks that are
accidentally getting turned off.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/