linux-kernel - Re: [PATCH V4 1/2] mtd: spi-nor: Bindings for Cadence Quad SPI Flash Controller driver.

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Date:	Fri, 24 Jul 2015 12:16:48 -0500
From:	Graham Moore <grmoore@...nsource.altera.com>
To:	Marek Vasut <marex@...x.de>
CC:	<linux-mtd@...ts.infradead.org>,
	Alan Tull <atull@...nsource.altera.com>,
	Yves Vandervennet <yvanderv@...nsource.altera.com>,
	<linux-kernel@...r.kernel.org>,
	Dinh Nguyen <dinguyen@...nsource.altera.com>,
	Brian Norris <computersforpeace@...il.com>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH V4 1/2] mtd: spi-nor: Bindings for Cadence Quad SPI Flash
 Controller driver.

On 07/24/2015 11:25 AM, Marek Vasut wrote:
> On Friday, July 24, 2015 at 06:12:01 PM, Graham Moore wrote:
>> On 07/24/2015 07:45 AM, Marek Vasut wrote:
>>> On Monday, March 23, 2015 at 02:36:21 PM, Graham Moore wrote:
>>>> Signed-off-by: Graham Moore <grmoore@...nsource.altera.com>
>>>> ---
>>>> V2: Add cdns prefix to driver-specific bindings.
>>>> V3: Use existing property "is-decoded-cs" instead of creating a
>>>> duplicate, "ext-decoder".  Timing parameters are in nanoseconds, not
>>>> master reference clocks.  Remove bus-num completely.
>>>
>>> Hi!
>>>
>>> do you plan to continue on this driver any soon? If not, I'd like to take
>>> over the mainlining if you're not opposed. I'd like to see this in
>>> mainline soon.
>>
>> I don't have a problem with you taking over the mainlining.  I've been
>> stalled on the micron quad protocol issue that Cyrille Pitchen has solved.
>
> Do you mean the protocol change notification please?
>

Yes, that's what I mean, the protocol change notification.

>>> btw you'll need some kind of a variation on the attached two patches in
>>> the next iteration.
>>
>> I have a V5 with fixes for sparse and smatch issues.  Do you want me to
>> post it and you add those two patches?  Alternatively I can incorporate
>> them into my V5.
>
> Please post those patches, yup, that'd be nice :)
>
> Also, just squash those two micropatches into yours, no problem.
>
> Be careful about the 0002 patch, see the commit message. I do NOT think
> it is correct to pass the pdev->dev which represents the controller, not
> the subnode, into spi_nor_scan() in cqspi_probe() . I might be wrong here
> though, I am not sure. I think Brian or David would be much better people
> to comment on this part.
>

I'm doing it the way fsl_quadspi.c does it.  It works on my Cyclone5 
test system with and without that 0002 patch.  So maybe I'll leave it 
out for now.

V5 patches on the way...

BR,
Graham

> Best regards,
> Marek Vasut
>

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