linux-kernel - Re: [PATCH 0/3] usb: chipidea: add one errata for revision 2.40a

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Date:	Tue, 23 Dec 2014 08:09:44 +0800
From:	Peter Chen <peter.chen@...escale.com>
To:	Sanchayan Maity <maitysanchayan@...il.com>
CC:	<stefan@...er.ch>, <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/3] usb: chipidea: add one errata for revision 2.40a

On Mon, Dec 22, 2014 at 06:39:42PM +0530, Sanchayan Maity wrote:
> On 12/22/2014 06:48 AM, Peter Chen wrote:
> > On Fri, Dec 19, 2014 at 03:25:26PM +0530, Sanchayan Maity wrote:
> >> The first two patches add identification register API's. These can
> >> be used to get controller's revision. 
> >>
> >> The third patch implements an errata for revision 2.40a. Not sure
> >> which other SOCs implement this version of the Chipidea core but
> >> this fixes the usb client issue observed on Vybrids. The patch was
> >> tested on a Toradex Colibri VF61 module with the 3.18 kernel. iperf
> >> tests ran for three hours plus, with these patches applied have found
> >> the USB client connection to be now reliable.
> > 
> > Would you help do a overnight test? It is passed, I will queue them,
> > thanks.
> 
> Yes definitely I can help with the testing. Are you looking for iperf
> tests only or something else? iperf tests running for 12 or 24 hours 
> will do? I will need a bit of time to set things up here, as I am away
> from work, but, ya I will do them. 
> 

iperf for g_ncm or g_ether and bonnie++ for g_mass_storage if you can
run, thanks.

Peter

> -Regards,
> Sanchayan.
> > 
> > Peter
> >>
> >> This patchset is based off on Shawn Guo's for-next branch
> >> https://git.kernel.org/cgit/linux/kernel/git/shawnguo/linux.git/tree/?h=for-next
> >>
> >> The credit for the patches and fix goes to Matthieu Castet and Peter Chen.
> >> First two patches are by Peter Chen and the third patch which fixed the
> >> bug we observed was reported by Matthieu Castet.
> >>
> >> The discussion of the problem and the relevant testing details can be found
> >> at this link: http://www.spinics.net/lists/linux-usb/msg118544.html
> >>
> >> The first version of this patchset originally send by Peter Chen can be
> >> found at this link: http://www.spinics.net/lists/linux-usb/msg118753.html
> >>
> >> Comments for review are welcome :).
> >> Note: I am going on a vacation so will not be able to reply or do any further
> >> tests till Monday. Will attend and take care of any comments/requests for 
> >> further changes/testing from Tuesday. Apologize for the delay in advance.
> >>
> >> Sanchayan Maity (3):
> >>   usb: chipidea: Add identification registers access APIs
> >>   usb: chipidea: Add chipidea revision information
> >>   usb: chipidea: Add errata for revision 2.40a
> >>
> >>  drivers/usb/chipidea/bits.h |   10 ++++++++
> >>  drivers/usb/chipidea/ci.h   |   53 +++++++++++++++++++++++++++++++++++++++++++
> >>  drivers/usb/chipidea/core.c |   23 +++++++++++++++++--
> >>  drivers/usb/chipidea/udc.c  |   20 ++++++++++++++++
> >>  4 files changed, 104 insertions(+), 2 deletions(-)
> >>
> >> -- 
> >> 1.7.9.5
> >>
> > 

-- 

Best Regards,
Peter Chen
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