linux-kernel - Re: [PATCH v8 2/2] spi: cadence-quadpsi: Add support for the Cadence QSPI controller

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Message-ID: <9fc3e36d-18c2-c5fb-2fed-7ffcef817692@ti.com>
Date:   Wed, 5 Feb 2020 09:38:11 +0530
From:   Vignesh Raghavendra <vigneshr@...com>
To:     Dinh Nguyen <dinguyen@...nel.org>,
        "Ramuthevar, Vadivel MuruganX" 
        <vadivel.muruganx.ramuthevar@...ux.intel.com>,
        Simon Goldschmidt <simon.k.r.goldschmidt@...il.com>,
        Tien-Fong Chee <tien.fong.chee@...el.com>,
        Marek Vasut <marex@...x.de>
CC:     Mark Brown <broonie@...nel.org>, <linux-spi@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>, <dan.carpenter@...cle.com>,
        <cheol.yong.kim@...el.com>, <qi-ming.wu@...el.com>
Subject: Re: [PATCH v8 2/2] spi: cadence-quadpsi: Add support for the Cadence
 QSPI controller

Hi Dinh,

On 04/02/20 9:27 pm, Dinh Nguyen wrote:
[...]
>>>> Already I checked that Graham Moore <grmoore@...nsource.altera.com>
>>>> who has submitted the existing driver patches to upstream,
>>>> His mail-id is bouncing back, then I decided that you are the right
>>>> person to ask, could you please add them in loop if you know the team
>>>> (socfpga platform engineers).
> 
> Thanks for including Graham, but he's moved on to a different career
> that no longer includes Linux.
> 
>>> OK, done that. I mainly know them from U-Boot development, so I'm not
>>> sure
>>> who's responsible for the Linux drivers...
>> Thank you for adding the team and respective members, let's see.
>>
> 
> I don't have the original patch series, but will monitor going forward.
> As long as the new driver does not break legacy SoCFPGA products that
> use the cadence-quadspi driver then it should be ok.
> 

The legacy driver under drivers/mtd/spi-nor will be removed as we cannot
support both SPI NOR and SPI NAND with single driver if its under
spi-nor. New driver should be functionally equivalent to existing one.
So I suggest you test this driver on legcay SoCFPGA products.


-- 
Regards
Vignesh