linux-kernel - Re: [PATCH 00/12] mtd: nand: davinci: stop using pdev->id as chipselect

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Message-ID: <86e80ed7-e0be-8f2c-888e-66406551395f@ti.com>
Date:   Thu, 3 May 2018 15:11:47 +0530
From:   Sekhar Nori <nsekhar@...com>
To:     Boris Brezillon <boris.brezillon@...tlin.com>,
        Bartosz Golaszewski <brgl@...ev.pl>
CC:     Kevin Hilman <khilman@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Richard Weinberger <richard@....at>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Tony Lindgren <tony@...mide.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        <linux-mtd@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 00/12] mtd: nand: davinci: stop using pdev->id as
 chipselect

Hi Boris,

On Monday 30 April 2018 10:17 PM, Boris Brezillon wrote:
> On Mon, 30 Apr 2018 18:45:06 +0200
> Bartosz Golaszewski <brgl@...ev.pl> wrote:
> 
>> 2018-04-30 12:09 GMT+02:00 Boris Brezillon <boris.brezillon@...tlin.com>:
>>> Hi Bartosz,
>>>
>>> On Mon, 30 Apr 2018 10:24:41 +0200
>>> Bartosz Golaszewski <brgl@...ev.pl> wrote:
>>>
>>>> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
>>>>
>>>> We have the 'ti,davinci-chipselect' property in the device tree, but
>>>> when using platform data the driver silently uses the id field of
>>>> struct platform_device as the chipselect. This is confusing and we
>>>> almost broke the nand support again recently after converting the
>>>> platform to common clock framework (which changed the device id in the
>>>> clock lookup - the problem is gone now that we no longer acquire the
>>>> clock in the nand driver.
>>>>
>>>> This series adds a new field to davinci-nand platform data, then makes
>>>> all board use it and finally modifies the two drivers that make use of
>>>> it.
>>>>
>>>> Bartosz Golaszewski (12):
>>>>   mtd: nand: davinci: store the core chipselect number in platform data
>>>
>>> Raw NAND related patches (that is, everything that is not onenand or
>>> SPI NAND) should use the "mtd: rawnand: " prefix now. Other than that,
>>> I'm fine with the patch series, just let me know how you want to have it
>>> merged (through the MTD tree or the davinci tree).
>>>
>>> Thanks,
>>>
>>> Boris
>>
>> I think Sekhar could pick all those patches up for 4.18.
> 
> Okay, then I'd need an immutable branch containing these changes.

You can use branch v4.18/nand-cs-simplification of
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
(commit 7c4db57cdb00)

Thanks,
Sekhar