[i2c] Grouping i2c bus drivers

[Uli Luckas]

On Wednesday, 2. July 2008, Jean Delvare wrote:
> Hi Mike,
>
> On Mon, 30 Jun 2008 12:56:29 +0300, Mike Rapoport wrote:
> > Jean Delvare wrote:
> > > Hi all,
> > >
> > > As was mentioned previously, I have decided to group the i2c bus
> > > drivers to make it easier for the users to know what they need (and
> > > also for me to know what drivers might be affected by a given problem.)
> > > Here is the list I have at the moment. There are still many drivers in
> > > the "Other" category. I suspect that many of these should move to the
> > > "Embedded" category, but I don't know for sure. So I would welcome
> > > comments and suggestions for improvements.
> >
> > [ snip ]
> >
> > > obj-$(CONFIG_SCx200_ACB)	+= scx200_acb.o
> > > obj-$(CONFIG_SCx200_I2C)	+= scx200_i2c.o
> >
> > SCx200 are Geode GX/LX devices, so I think it also can be moved to
> > embedded.
>
> As far as I know, the Geode uses I2C as a peripheral bus, much like PCs
> do, not a system bus as most embedded systems do. So, in the light of
> other discussions in this thread, it's probably better to not put these
> drivers in the "embedded" category (which might in turn be renamed to
> "System I2C host controller drivers (mostly embedded)" or similar.)
>
I fully agree. Using the embedded classification already lead to confusion in 
the subthread started by Riku Voipio  (See my comment in that subthread)

> But honestly I'm not too sure what to do. Grouping by functionality
> makes sense for the user, but grouping by bus usage makes more sense if
> we end up splitting the bus drivers depending on the time at which they
> need to come up.
We are talking about source code layout. I am not an expert for Kconfig but I 
guess we can present the drivers to the user in a completely source tree 
layout independent fashion.

regards,
Uli


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Uli Luckas
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