linux-kernel - Re: [PATCH 1/3] msm: iommu: Create a Kconfig item for the IOMMU driver

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Date:	Tue, 15 Feb 2011 16:36:03 -0800
From:	Daniel Walker <dwalker@...eaurora.org>
To:	David Brown <davidb@...eaurora.org>
Cc:	Stepan Moskovchenko <stepanm@...eaurora.org>,
	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] msm: iommu: Create a Kconfig item for the IOMMU
 driver

On Tue, 2011-02-15 at 11:35 -0800, David Brown wrote:
> On Fri, Feb 11 2011, Daniel Walker wrote:
> 
> > On Fri, 2011-02-11 at 12:28 -0800, Stepan Moskovchenko wrote:
> >> +config MSM_IOMMU
> >> +       bool "MSM IOMMU Support"
> >> +       depends on ARCH_MSM8X60
> >> +       select IOMMU_API
> >> +       default n
> >> +       help
> >> +         Support for the IOMMUs found on certain Qualcomm SOCs.
> >> +         These IOMMUs allow virtualization of the address space used by most
> >> +         cores within the multimedia subsystem.
> >> +
> >> +         If unsure, say N here. 
> >
> > I think you should just make this a hidden option, unless there is a
> > good reason why any given users might want to turn this off.
> 
> In this particular case, the driver is optional, even devices that use
> it will be able to work both with and without it.  It makes sense to be
> able to decide whether to have it or not.

This driver doesn't belong under mach-msm.

Daniel

-- 

Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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