From: Timur Tabi <timur@freescale.com>
To: Jon Smirl <jonsmirl@gmail.com>
Cc: Scott Wood <scottwood@freescale.com>,
Linux I2C <i2c@lm-sensors.org>,
Linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] powerpc: i2c-mpc: make speed registers configurable via FDT
Date: Thu, 31 Jul 2008 15:56:53 -0500 [thread overview]
Message-ID: <48922715.2000304@freescale.com> (raw)
In-Reply-To: <9e4733910807311355q3394b4bfg66c37055384451f7@mail.gmail.com>
Jon Smirl wrote:
> Isn't there a single global divider that generates all the i2c source
> clocks? You don't want to copy a global value into each i2c node.
Why not? There are only two I2C devices, and it's theoretically possible for
them to have different input clock frequencies. Keeping it in the I2C node
allows the I2C driver to reference a property directly in the node that its probing.
> Aren't we talking about the /2 or /3 or /1 divider that appears to be
> randomly implemented on various members of the mpc8xxx family?
Yes.
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2008-07-31 20:56 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
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 [this message]
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
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