linux-kernel - Re: [PATCH v2 RESEND 2/4] drivers: of: initialize and assign reserved memory to newly created devices

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Date:	Tue, 29 Jul 2014 16:47:04 +0200
From:	Marek Szyprowski <m.szyprowski@...sung.com>
To:	Grant Likely <grant.likely@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:	linaro-mm-sig@...ts.linaro.org, devicetree@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>,
	Michal Nazarewicz <mina86@...a86.com>,
	Tomasz Figa <t.figa@...sung.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Laura Abbott <lauraa@...eaurora.org>,
	Nishanth Peethambaran <nishanth.p@...il.com>,
	Marc <marc.ceeeee@...il.com>,
	Josh Cartwright <joshc@...eaurora.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Paul Mackerras <paulus@...ba.org>,
	Jon Medhurst <tixy@...aro.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	"Aneesh Kumar K.V." <aneesh.kumar@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 RESEND 2/4] drivers: of: initialize and assign reserved
 memory to newly created devices

Hello,

On 2014-07-28 16:17, Grant Likely wrote:
> On Mon, 14 Jul 2014 10:28:05 +0200, Marek Szyprowski <m.szyprowski@...sung.com> wrote:
>> Use recently introduced of_reserved_mem_device_init() function to
>> automatically assign respective reserved memory region to the newly created
>> platform and amba device.
>>
>> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> I'm still not okay with this patch. I don't think it is appropriate to
> add the hook into the generic path that gets used for every platform
> device. The devices that need reserved memory should explicitly request
> it, and any setup be done at that time.

Okay... I thought that it will be easier to have it done in generic 
code, if You don't
think so, then I give up and we will add it in all drivers requiring 
such memory regions.

What about patch 3/4 and 4/4? Would it be possible to have your ack to 
get them merged?
Right now patch 4/4 depends on changes from akpm tree, so it will be 
best to merge them
to akpm tree.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland

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