linux-kernel - Re: [PATCH v2] mtd: atmel-quadspi: add suspend/resume hooks

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Date:   Tue, 19 Jun 2018 03:28:19 +0200
From:   Marek Vasut <marek.vasut@...il.com>
To:     Claudiu Beznea <Claudiu.Beznea@...rochip.com>,
        Boris Brezillon <boris.brezillon@...tlin.com>
Cc:     dwmw2@...radead.org, computersforpeace@...il.com, richard@....at,
        nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] mtd: atmel-quadspi: add suspend/resume hooks

On 06/18/2018 02:00 PM, Claudiu Beznea wrote:
> 
> 
> On 18.06.2018 12:53, Marek Vasut wrote:
>> On 06/18/2018 11:49 AM, Boris Brezillon wrote:
>>> Hi Claudiu,
>>>
>>> The subject prefix should be "mtd: spi-nor: atmel-quadspi: ". No need
>>> to send a new version just for that, I'll fix it when applying the
>>> patch.
>>>
> Hi Boris,
> 
> Thank you!
> 
>>> Looks good otherwise. Marek, any objection? If not, can you add your
>>> Acked-by?
>>
>> Will this work if you have ie. ubifs mounted on that QSPI NOR and you
>> suspect and resume during IO ? I think it would, but just curious if
>> there could be some problem.
> 
> Hi Marek,
> 
> I tested only with read/writes while suspending, simple scripts, but not
> having ubifs mounted on QSPI NOR. I will double check also with ubifs
> mounted on QSPI NOR and come back with the results.

Thanks. I think it's gonna be OK, but let's just be sure.
Make sure to disable 4K sector support when fiddling with UBI/UBIFS on
QSPI NOR.

-- 
Best regards,
Marek Vasut