[PATCH 2/5] dma i.MX: remove individual SOC dependency

[Sascha Hauer]

On Tue, Nov 08, 2011 at 09:42:56PM +0100, Michał Mirosław wrote:
> 2011/8/24 Sascha Hauer <s.hauer at pengutronix.de>:
> > The individual SoC dependency in Kconfig hardly scales anymore.
> > Instead of having such a fine grained dependency just depend
> > on ARCH_MXC and risk that the uninformed user has to look in
> > the help text to figure out which driver is the correct one.
> [...]
> >  config MX3_IPU
> >        bool "MX3x Image Processing Unit support"
> > -       depends on ARCH_MX3
> > +       depends on ARCH_MXC
> >        select DMA_ENGINE
> >        default y
> >        help
> 
> You could instead make it depend on HAVE_MX3_IPU and select this
> symbol from relevant model config. Leaving it for the users is making
> every one of them redo the work you already did.

I thought about this. I came to the conclusion that these are quite hard
to change when they are present in many subsystems (I try to get rid of
ARCH_MXx macros for some time now). Also with upcoming devicetree
support the IMX_HAVE_ macros will loose their meaning anyway. Being a
bit more relaxed with the 'depends on' only means that a user might
compile in some unused drivers, which is the standard case on other
architectures like x86 anyway.

Sascha

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