linux-kernel - Re: [PATCH 2/3] msm: iommu: Generalize platform data for multiple targets

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Message-ID: <8ya7hd6kxk1.fsf@huya.qualcomm.com>
Date:	Fri, 11 Feb 2011 14:37:18 -0800
From:	David Brown <davidb@...eaurora.org>
To:	Daniel Walker <dwalker@...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 2/3] msm: iommu: Generalize platform data for multiple targets

On Fri, Feb 11 2011, Daniel Walker wrote:

> On Fri, 2011-02-11 at 12:28 -0800, Stepan Moskovchenko wrote:
>> Make the IOMMU platform data target-independent in
>> preparation for adding MSM8960 IOMMU support. The IOMMU
>> configuration on MSM8x60 and MSM8960 is identical and the
>> same platform data can be used for both.
>> 
>> Signed-off-by: Stepan Moskovchenko <stepanm@...eaurora.org>
>> ---
>>  arch/arm/mach-msm/Makefile                         |    4 +-
>>  .../{devices-msm8x60-iommu.c => devices-iommu.c}   |   54 +++++++++----------
>>  arch/arm/mach-msm/include/mach/msm_iomap-8x60.h    |   36 -------------
>>  3 files changed, 28 insertions(+), 66 deletions(-)
>>  rename arch/arm/mach-msm/{devices-msm8x60-iommu.c => devices-iommu.c} (93%)
>
> If it's like what you and David are suggesting I think you would need a
> SoC designation in the filename ..

It is functionality that will be shared across multiple socs.  Putting
the name of a specific soc would just be misleading.  Currently, it's
our only iommu.  Support for another family that uses a different iommu
could perhaps call it iommu2.

David

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