Re: am335x: TSC & ADC reworking including DT pieces, take 4

From: Samuel Ortiz
Date: Tue Jun 11 2013 - 12:11:14 EST

Hi Sebastian,

On Tue, Jun 11, 2013 at 05:29:22PM +0200, Sebastian Andrzej Siewior wrote:
> > Then, this is a pretty big patchset, with iio, input and mfd all mixed
> > together and it is likely to create merge conflicts.
> They somehow depend on each other. Otherwise I would have sent three
> series, one per subsystem.
Of course they depend on each other, but the dependency is mostly for
iio and input to depend on the MFD changes.

> >>From what I can see from it, and please correct me if I'm
> > wrong, the iio and input changes depend on the mfd ones, and not the
> > other way around. If that's so, I'm going to ask you to reshuffle your
> > patch set and separate the MFD changes from the iio and input ones. I'll
> > take the MFD ones and will create an immutable branch for Jonathan and
> > Dmitry to pull from and apply the iio and input changes on top of it.
> > Merge conflicts should be mostly avoided that way.
> > AFAICT, only patch #2 should be kept with input and iio bits mixed
> > together with MFD as otherwise this would introduce functional breakage.
> > Otherwise, all MFD bits from the other patches could be either separated
> > or merged together (e.g. MFD bits from patches #6 and #8, and #16 and
> > #17).
> >
> > Does that sound doable to you ?
> The device renaming shouldn't matter since I added DT nodes for the mfd
> child devices earlier. But then the of_compatible assignments should
> go hand in hand. However if I split this then the driver won't work
> but then it does not now as well (because there is no platform_data
> provider in tree).
> Still. There is #18 which reworks the "step addressing" and involves
> changes in both (iio & input) at the same time.
Would splitting iio and input break anything there ?

> There is #21. Adding this to the initial "DT support" patch would be bad
> I think because it requires some changes on the iio side which have
> nothing to do with DT. Putting the iio changes before DT would require
> to make some change to platform-data part which will go away anyway.
Wouldn't it workif you split this one into an MFD+dts file changes and
another one for the iio changes ?

> So I started collecting ACKs from input and iio to avoid this split. If
> you really want the split then I will start doing soâ
I think it would be nicer, yes.


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