Re: [PATCH v4 1/3] serial: sh-sci: Add OF support

[Arnd Bergmann <arnd@arndb.de>]

On Wednesday 06 March 2013, Bastian Hecht wrote:
> 2013/3/6 Paul Mundt <lethal@linux-sh.org>:
> > No, we still need to figure out how to generate that baud rate, whether
> > it needs an internal or external clock for driving the rate, etc. The
> > frequency in and of itself doesn't provide this information, and various
> > parts use different algorithms for factoring the baud rate generator,
> > even varying across otherwise identical ports. It's unfortunately not
> > possible to infer anything about the SCBRR algorithm from port type or
> > specified baud rate.
> >
> > The algorithm IDs here are wholly arbitrary anyways, but are the
> > variations I came up with from roughly 60-70 different CPUs.

Ok, I see.

> So if we stick with the notion of the algrithm ID everything is settled now.
> 
> I will prepare a v6 that I will post as the whole patchset and an
> additional incremental patch 1/3 from v3 to v6 for Paul's repo. Then
> we can see if the SCBRR thing needs further discussion and if the rest
> of the patchset is final.

I can't think of anything better either, so let's stick to putting the
algorithm ID into the DT binding.

	Arnd