linux-kernel - Re: [PATCH 10/12] mtd: nand: davinci: don't set timings if AEMIF is used

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Date:	Mon, 25 Nov 2013 19:55:57 -0500
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	Sekhar Nori <nsekhar@...com>
CC:	"Khoronzhuk, Ivan" <ivan.khoronzhuk@...com>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	Mark Rutland <mark.rutland@....com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"Strashko, Grygorii" <grygorii.strashko@...com>,
	Pawel Moll <pawel.moll@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...nel.crashing.org>,
	Rob Herring <rob.herring@...xeda.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 10/12] mtd: nand: davinci: don't set timings if AEMIF
 is used

On Sunday 24 November 2013 04:46 AM, Sekhar Nori wrote:
> On Friday 22 November 2013 11:08 PM, Santosh Shilimkar wrote:
>> On Thursday 21 November 2013 12:07 PM, Nori, Sekhar wrote:
>>> On 11/14/2013 8:06 PM, Santosh Shilimkar wrote:

[..]

>>> Yes, that would be the ideal way. But the reality is that there is close
>>> to zero chance of all the DaVinci platforms using AEMIF ever getting
>>> converted to DT. This means that we will never be able to get rid of
>>> this piece of code.
>>>
>> Well that means some of those platforms support will get deprecated
>> soon considering other basic frameworks like irq, timer wheel etc
>> is assuming the DT direction. But its your call because if you
>> want those platforms to live, you need to convert them to DT.
>>  
>>> I do agree platform data is not the direction you want to take on ARM
>>> but at the same time its not really a deprecated mechanism as far as the
>>> broader kernel is concerned.
>>>
>>> So, can we consider adding platform data mechanism to the AEMIF driver?
>>>
>> Sorry but answer is "NO". If the above hack is really bothering you,
>> we can actually rip out the above code in question and move it
>> to mach-davinci. Infact thats the best direction to make the
>> mtd nandn driver independent of any platform quirks(dt, pdata etc)
>>
>> Ivan already has a patch to do that and he is going to post
>> that patch. With that patch, we won't need $subject patch.
>>
> 
> Okay I will wait for the patch.
> 
Ivan has posted a patch already and you are copied on it.

Regards,
Santosh
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