From: Timur Tabi <timur@freescale.com>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: Scott Wood <scottwood@freescale.com>,
Linuxppc-dev@ozlabs.org, Linux I2C <i2c@lm-sensors.org>
Subject: Re: [PATCH] powerpc: i2c-mpc: make speed registers configurable via FDT
Date: Thu, 31 Jul 2008 15:37:07 -0500 [thread overview]
Message-ID: <48922273.6070801@freescale.com> (raw)
In-Reply-To: <fa686aa40807311335t1dd123d0mc385234ebe55248@mail.gmail.com>
Grant Likely wrote:
> How is the divider controlled? Is it a fixed property of the SoC?
Yes. The divider is either 1, 2, or 3, and the only way to know which one it is
is to look up the specific SOC model number. And depending on the SOC model,
there may also be a register that needs to be looked up.
> a
> shared register setting? or a register setting within the i2c device?
The I2C device itself has no idea what the divider is. It only sees the result
of the divider.
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2008-07-31 20:37 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-25 7:37 [PATCH] powerpc: i2c-mpc: make speed registers configurable via FDT Wolfgang Grandegger
2008-07-25 8:51 ` Jochen Friedrich
2008-07-25 9:04 ` Wolfgang Grandegger
2008-07-25 13:12 ` Grant Likely
2008-07-25 14:21 ` Timur Tabi
2008-07-25 15:04 ` Jon Smirl
2008-07-25 15:23 ` Wolfgang Grandegger
2008-07-25 16:19 ` Timur Tabi
2008-07-27 1:27 ` Grant Likely
2008-07-31 11:51 ` Wolfgang Grandegger
2008-07-31 15:49 ` Jon Smirl
2008-07-31 15:55 ` Timur Tabi
2008-07-31 23:32 ` [i2c] " Trent Piepho
2008-08-01 13:17 ` Timur Tabi
2008-08-01 15:47 ` Scott Wood
2008-08-01 19:47 ` Trent Piepho
2008-08-01 19:50 ` Timur Tabi
2008-07-31 17:22 ` Wolfgang Grandegger
2008-07-31 17:31 ` Grant Likely
2008-07-31 17:51 ` Wolfgang Grandegger
2008-07-31 17:54 ` Timur Tabi
2008-07-31 18:07 ` Wolfgang Grandegger
2008-07-31 18:06 ` Timur Tabi
2008-07-31 18:07 ` Grant Likely
2008-07-31 18:10 ` Timur Tabi
2008-07-31 18:21 ` Grant Likely
2008-07-31 18:09 ` Grant Likely
2008-07-31 18:13 ` Timur Tabi
2008-07-31 18:28 ` Grant Likely
2008-07-31 18:35 ` Timur Tabi
2008-07-31 18:57 ` Jon Smirl
2008-07-31 19:01 ` Timur Tabi
2008-07-31 19:25 ` Grant Likely
2008-08-01 0:22 ` [i2c] " Trent Piepho
2008-08-01 1:19 ` Jon Smirl
2008-08-01 1:36 ` Trent Piepho
2008-08-01 1:44 ` Jon Smirl
2008-08-01 15:02 ` Timur Tabi
2008-08-01 16:05 ` Jon Smirl
2008-08-01 7:29 ` Wolfgang Grandegger
2008-08-01 2:03 ` Grant Likely
2008-08-01 2:35 ` Jon Smirl
2008-08-01 13:25 ` Timur Tabi
2008-08-01 14:28 ` Jon Smirl
2008-08-01 14:32 ` Jon Smirl
2008-08-01 21:14 ` Trent Piepho
2008-08-01 7:25 ` Wolfgang Grandegger
2008-08-01 14:38 ` Grant Likely
2008-07-31 19:01 ` Scott Wood
2008-07-31 19:08 ` Timur Tabi
2008-07-31 19:15 ` Scott Wood
2008-07-31 19:19 ` Timur Tabi
2008-07-31 19:21 ` Scott Wood
2008-07-31 19:22 ` Timur Tabi
2008-07-31 19:11 ` Jon Smirl
2008-07-31 19:14 ` Grant Likely
2008-07-31 19:24 ` Wolfgang Grandegger
2008-07-31 19:24 ` Timur Tabi
2008-07-31 19:54 ` Wolfgang Grandegger
2008-07-31 19:58 ` Timur Tabi
2008-07-31 20:17 ` Wolfgang Grandegger
2008-07-31 20:19 ` Timur Tabi
2008-07-31 20:28 ` Wolfgang Grandegger
2008-07-31 20:28 ` Timur Tabi
2008-07-31 20:30 ` Grant Likely
2008-07-31 20:32 ` Jon Smirl
2008-07-31 20:35 ` Grant Likely
2008-07-31 20:37 ` Timur Tabi [this message]
2008-07-31 20:48 ` Grant Likely
2008-07-31 20:55 ` Jon Smirl
2008-07-31 20:56 ` Scott Wood
2008-07-31 20:56 ` Timur Tabi
2008-07-31 21:03 ` Jon Smirl
2008-07-31 21:10 ` Timur Tabi
2008-07-31 21:14 ` Wolfgang Grandegger
2008-07-31 21:17 ` Timur Tabi
2008-08-01 1:16 ` [i2c] " Trent Piepho
2008-08-01 0:57 ` Trent Piepho
2008-07-31 20:35 ` Timur Tabi
2008-07-31 20:43 ` Jon Smirl
2008-07-31 20:44 ` Timur Tabi
2008-07-31 19:59 ` Grant Likely
2008-07-31 20:00 ` Timur Tabi
2008-07-31 20:20 ` Wolfgang Grandegger
2008-07-31 20:19 ` Timur Tabi
2008-08-01 0:46 ` [i2c] " Trent Piepho
2008-08-01 14:34 ` Grant Likely
2008-08-01 14:48 ` Geert Uytterhoeven
2008-07-31 17:35 ` Jon Smirl
2008-07-31 16:51 ` Grant Likely
2008-07-31 17:06 ` Jon Smirl
2008-07-31 17:36 ` Grant Likely
2008-07-31 17:47 ` Jon Smirl
2008-07-31 17:24 ` Wolfgang Grandegger
2008-07-25 15:34 ` Wolfgang Grandegger
2008-07-27 1:25 ` Grant Likely
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=48922273.6070801@freescale.com \
--to=timur@freescale.com \
--cc=Linuxppc-dev@ozlabs.org \
--cc=grant.likely@secretlab.ca \
--cc=i2c@lm-sensors.org \
--cc=scottwood@freescale.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).