From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/3] serial: sh-sci: Add OF support
Date: Wed, 6 Mar 2013 10:28:22 +0000 [thread overview]
Message-ID: <201303061028.23084.arnd@arndb.de> (raw)
In-Reply-To: <CABYn4szirgE7jy=49qCR3BuYd9jsWXJ=DrXeCqyuyGP0S2quiQ@mail.gmail.com>
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
next prev parent reply other threads:[~2013-03-06 10:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-04 16:20 [PATCH v4 1/3] serial: sh-sci: Add OF support Bastian Hecht
2013-03-04 16:20 ` Arnd Bergmann
2013-03-05 12:58 ` Bastian Hecht
2013-03-05 19:26 ` Arnd Bergmann
2013-03-06 0:50 ` Paul Mundt
2013-03-06 10:19 ` Bastian Hecht
2013-03-06 10:28 ` Arnd Bergmann [this message]
2013-03-04 16:20 ` [PATCH v4 2/3] ARM: mach-shmobile: r8a7740: Add DT names to clock list Bastian Hecht
2013-03-04 16:20 ` [PATCH v4 3/3] ARM: mach-shmobile: r8a7740: Setup the serial devices using DT Bastian Hecht
2013-03-04 16:22 ` Arnd Bergmann
2013-03-05 13:00 ` Bastian Hecht
2013-03-05 13:42 ` Sergei Shtylyov
2013-03-05 13:47 ` Bastian Hecht
2013-03-05 19:22 ` Arnd Bergmann
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