linux-kernel - Re: [PATCH v6 0/3] spi-nor: Add support for Intel SPI serial flash controller

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Date:   Mon, 5 Dec 2016 18:17:30 +0100
From:   Cyrille Pitchen <cyrille.pitchen@...el.com>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Marek Vasut <marek.vasut@...il.com>
CC:     Lee Jones <lee.jones@...aro.org>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Richard Weinberger <richard@....at>,
        Brian Norris <computersforpeace@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Peter Tyser <ptyser@...-inc.com>, <key.seong.lim@...el.com>,
        <linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>
Subject: Re: [PATCH v6 0/3] spi-nor: Add support for Intel SPI serial flash
 controller

Le 05/12/2016 à 17:31, Mika Westerberg a écrit :
> On Mon, Dec 05, 2016 at 02:33:12PM +0100, Marek Vasut wrote:
>> On 12/05/2016 12:27 PM, Mika Westerberg wrote:
>>> On Mon, Nov 28, 2016 at 03:06:23PM +0300, Mika Westerberg wrote:
>>>> This is 6th iteration of the series. You can find the previous versions
>>>> archived on:
>>>>
>>>>   v5: https://lwn.net/Articles/706363/
>>>>   v4: https://lwn.net/Articles/703773/
>>>>   v3: https://lwn.net/Articles/697231/
>>>>   v2: http://lists.infradead.org/pipermail/linux-mtd/2016-June/068277.html
>>>>   v1: https://lkml.org/lkml/2016/6/14/269
>>>>
>>>> This patch series adds support for the Intel SPI serial flash controller
>>>> found on many recent Intel CPUs including Baytrail and Braswell. This
>>>> driver makes it possible to access the BIOS and other platform data which
>>>> is stored on the SPI serial flash. It is also possible to upgrade the BIOS
>>>> using this driver if it has not been protected by special hardware bits.
>>>>
>>>> The patch [1/3] includes documentation how to upgrade BIOS on MinnowBoard
>>>> MAX.
>>>>
>>>> Since poking the SPI serial flash can brick the machine, this driver can
>>>> only be enabled when CONFIG_EXPERT=y and even then it will remain read-only
>>>> unless instructed othwerwise by module parameter.
>>>
>>> Hi Lee,
>>>
>>> I think we have enough acks from the MTD maintainers. I wonder if you
>>> could merge this series via your MFD tree?
>>>
>> Ideally you'd merge 1/3 via MTD and 2,3/3 via MFD, but I'm not sure if
>> that is possible and if that is a sensible thing to do.
> 
> There is a dependency between patches 1 and 2 (and 3) so they should be
> merged together to avoid build errors. I'm fine if they go via either
> tree as long as someone picks them up ;-)
> 

Hi Lee,

we can take it in the mtd: spi-nor: tree if you want, just let us know
whether it's fine with you or if you prefer to take it from mtd.

Best regards,

Cyrille