Re: [PATCH v5] mfd: syscon: Decouple syscon interface from platform devices

From: Arnd Bergmann
Date: Fri Sep 26 2014 - 05:14:58 EST

On Friday 26 September 2014 09:48:24 Joachim Eastwood wrote:
> On 26 September 2014 09:16, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> > On Friday 26 September 2014 07:34:12 Joachim Eastwood wrote:
> >> I am working on Cortex-M4 no-MMU platform that isn't upstream yet, btw.
> >>
> >
> > Sorry for drifting off-topic, but this is very interesting to me. Can you
> > say which one you are working on and what your timeline is for submitting
> > it upstream?
> It's NXP LPC18xx/43xx which is Cortex-M3/M4.
> 3.19 or 3.20 might be target.

Ah, very nice!

> Right now everything is in a github repository here:
> Most stuff are working now and I am in the process of clean it up and
> adding documentation.

Ok, looks like you are making good progress. I noticed three high-level
issues that you may want to address:

- the watchdog driver should use the generic watchdog framework rather
than registering a misc device.
- the ehci glue can probably go away if you make very small changes
to the generic ehci platform driver
- I don't like the way that the stmmac glue drivers are added, I thought
we had fixed this before but I think I need to dig up old emails.
The driver should really be a loadable module that hooks calls into
the common code rather than being linked into one module.

I also have a plan for doing multiplatform builds of nommu kernels,
for build testing mostly, I wouldn't expect you to run that configuration.
No need for you to address that yourself though, we'll get there.

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