Re: [PATCH 1/5] [ARM] pxa: lx: add PCON i2c driver

[Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>]

On Sun, Apr 19, 2009 at 12:11:14PM +0100, Mark Brown wrote:
> On Sat, Apr 18, 2009 at 07:10:30PM +0100, Russell King - ARM Linux wrote:
> > On Sat, Apr 18, 2009 at 06:34:06PM +0100, Mark Brown wrote:
> 
> > > > Maybe you can suggest a better place for it?
> 
> > > drivers/mfd?
> 
> > It's not a multifunction device.  It's a microcontroller.
> 
> Surely that's just an implementation detail?  As I understand your
> description the microcontroller is hiding the control interfaces of the
> other things it controls so the function is pretty similar.

No, it's a question of whether drivers/mfd is right.  The "shovel
everything that doesn't fit elsewhere into drivers/mfd" approach
is just creating yet another problem, just like drivers/i2c/chips
is percieved to be.  The only difference is that it becomes someone
elses problem.

I've a good mind to put it in arch/arm/mach-pxa/ purely as a way of
bringing this issue to a close - it's far from ideal having drivers
outside of the drivers/ tree, but if that's the way it has to be to
progress, so be it.