linux-kernel - Re: [PATCH 1/5] soc: mediatek: Add SMI driver

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Date:	Mon, 09 Mar 2015 22:56:27 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Yingjoe Chen <yingjoe.chen@...iatek.com>, yong.wu@...iatek.com,
	Matthias Brugger <matthias.bgg@...il.com>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, srv_heupstream@...iatek.com,
	Catalin Marinas <catalin.marinas@....com>,
	Joerg Roedel <joro@...tes.org>,
	Will Deacon <will.deacon@....com>,
	linux-kernel@...r.kernel.org, Tomasz Figa <tfiga@...gle.com>,
	iommu@...ts.linux-foundation.org, Rob Herring <robh+dt@...nel.org>,
	Daniel Kurtz <djkurtz@...gle.com>,
	Sasha Hauer <kernel@...gutronix.de>,
	linux-mediatek@...ts.infradead.org,
	Robin Murphy <robin.murphy@....com>,
	Lucas Stach <l.stach@...gutronix.de>
Subject: Re: [PATCH 1/5] soc: mediatek: Add SMI driver

On Monday 09 March 2015 11:26:52 Yingjoe Chen wrote:
> On Fri, 2015-03-06 at 18:48 +0800, yong.wu@...iatek.com wrote:
> > From: Yong Wu <yong.wu@...iatek.com>
> > 
> >     This patch add SMI(Smart Multimedia Interface) driver. This driver is
> > responsible to enable/disable iommu and control the clocks of each
> > local arbiter.
> > 
> > Signed-off-by: Yong Wu <yong.wu@...iatek.com>
> > ---
> >  drivers/soc/mediatek/Kconfig      |   7 ++
> >  drivers/soc/mediatek/Makefile     |   1 +
> >  drivers/soc/mediatek/mt8173-smi.c | 143 ++++++++++++++++++++++++++++++++++++++
> >  include/linux/mtk-smi.h           |  40 +++++++++++
> >  4 files changed, 191 insertions(+)
> >  create mode 100644 drivers/soc/mediatek/mt8173-smi.c
> >  create mode 100644 include/linux/mtk-smi.h
> > 
> 
> Hi Arnd, Matthias,
> 
> For the SMI driver, we can't find a better place, so we put it in
> drivers/soc/mediatek now. Please let us know if you have any suggestion
> or concern. Thanks

>From what I understand from your description, I think it would better
fit in drivers/iommu. Another option is drivers/memory, which I think
is where the respective Tegra driver ended up.

	Arnd
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