linux-kernel - Re: v3.11-rc1 USB regressions

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Date:	Tue, 16 Jul 2013 21:34:46 +0300
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	Daniel Mack <zonque@...il.com>
Cc:	Felipe Balbi <balbi@...com>,
	Kishon Vijay Abraham I <kishon@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: v3.11-rc1 USB regressions

On Tue, Jul 16, 2013 at 08:30:21PM +0200, Daniel Mack wrote:
> On 16.07.2013 20:26, Aaro Koskinen wrote:
> > Hi,
> > 
> > On Tue, Jul 16, 2013 at 11:22:47AM +0300, Felipe Balbi wrote:
> >>> On Tue, Jul 16, 2013 at 12:30:00PM +0530, Kishon Vijay Abraham I wrote:
> >>>> On Tuesday 16 July 2013 12:03 PM, Daniel Mack wrote:
> >>>>> Hi Aaro,
> >>>>>
> >>>>> On 16.07.2013 00:56, Aaro Koskinen wrote:
> >>>>>> Hi,
> >>>>>>
> >>>>>> I think USB tree introduced regressions in v3.11-rc1, at least for some
> >>>>>> OMAP devices using legacy boot.
> >>>>>
> >>>>> Thanks for checking the tree so early.
> >>>>>
> >>>>>> I have only bisected these; I have no
> >>>>>> idea what the real fixes are but the following reverts make Nokia OMAP2+
> >>>>>> boards again usable for kernel development work (they need working USB
> >>>>>> connection for interacting with the device):
> >>>>>>
> >>>>>> 1) USB peripheral mode (g_ether) is broken on Nokia N900, N950 and N9
> >>>>>>    (USB_MUSB_OMAP2PLUS). To make it it work, I need to revert three
> >>>>>>    commits:
> >>>>>>
> >>>>>> 	09fc7d22b024692b2fe8a943b246de1af307132b
> >>>>>> 	usb: musb: fix incorrect usage of resource pointer
> >>>>>> 	(Reverting this fixes the g_ether probe failure "couldn't find
> >>>>>> 	 an available UDC")
> >>>>
> >>>> I've posted a patch fixing the issue
> >>>> http://comments.gmane.org/gmane.linux.usb.general/89541
> >>>> There were some comments on it. I'll be posting a new version for it.
> >>>
> >>> hmm, n8x0 used tusb6010, so perhaps a similar patch needs to be cooked
> >>> for that too. Right now, let's to the minimum fix, which is just to
> >>> increment the array size to 3 and for v3.12 we do the changes that I
> >>> suggested.
> >>
> >> this should solve the problem on n900 and n8x0, it's pretty much
> >> kishon's original patch, so I guess it deserves his authorship:
> > 
> > Thanks, and yes it fixes this issue. I tested both N900 and N800, so
> > feel free to add my Tested-by.
> 
> Together with my patch I take it? Does your Tested-by apply to this one
> as well?

I tested also that one (ARM: omap2: fix musb usage for n8x0), so yes,
it's for both patches.

A.
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