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Date:	Tue, 23 Dec 2014 09:41:18 +0530
From:	Sanchayan Maity <>
To:	Peter Chen <>
Subject: Re: [PATCH 0/3] usb: chipidea: add one errata for revision 2.40a

On 12/23/2014 05:39 AM, Peter Chen wrote:
> 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.

Will run 12 hour iperf test for CDC ECM. I am not aware of bonnie++, but,
will look into it. Will get back once I have the results.



> Peter
>> -Regards,
>> Sanchayan.
>>> Peter
>>>> This patchset is based off on Shawn Guo's for-next branch
>>>> 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:
>>>> The first version of this patchset originally send by Peter Chen can be
>>>> found at this link:
>>>> 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(-)
>>>> -- 
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