From: Timur Tabi <timur-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: Jon Smirl <jonsmirl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Grant Likely
<grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>,
Scott Wood <scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
Linux I2C <i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org>,
Wolfgang Grandegger <wg-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>,
Linuxppc-dev-mnsaURCQ41sdnm+yROfE0A@public.gmane.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-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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
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next prev parent reply other threads:[~2008-07-31 20:56 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <488982B5.4070102@grandegger.com>
[not found] ` <4889942C.4040800@scram.de>
[not found] ` <48899736.8020400@grandegger.com>
[not found] ` <fa686aa40807250612g34b5167dtbe70c810f30a5d32@mail.gmail.com>
[not found] ` <ed82fe3e0807250721n115d28c7ha1f641c9175c473d@mail.gmail.com>
[not found] ` <4889EFFE.2070201@grandegger.com>
[not found] ` <4889FD1D.4010804@freescale.com>
[not found] ` <20080727012722.GH12191@secretlab.ca>
[not found] ` <4891A744.6060005@grandegger.com>
2008-07-31 15:49 ` [PATCH] powerpc: i2c-mpc: make speed registers configurable via FDT Jon Smirl
2008-07-31 15:55 ` Timur Tabi
[not found] ` <4891E06A.4070608-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2008-07-31 23:32 ` Trent Piepho
2008-08-01 13:17 ` [i2c] " Timur Tabi
2008-08-01 15:47 ` Scott Wood
2008-08-01 19:47 ` Trent Piepho
[not found] ` <Pine.LNX.4.58.0808011246290.10341-13q4cmjDBaTP3RPoUHIrnuTW4wlIGRCZ@public.gmane.org>
2008-08-01 19:50 ` Timur Tabi
2008-07-31 17:22 ` Wolfgang Grandegger
[not found] ` <4891F4D8.9090905-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2008-07-31 17:31 ` Grant Likely
2008-07-31 17:51 ` Wolfgang Grandegger
[not found] ` <fa686aa40807311031r66f6451aw206faf54509c14d9-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 17:54 ` Timur Tabi
2008-07-31 18:07 ` Wolfgang Grandegger
[not found] ` <4891FF51.4020701-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2008-07-31 18:06 ` Timur Tabi
2008-07-31 18:07 ` Grant Likely
[not found] ` <fa686aa40807311107m44ce7fbk35e94d1a24b992fb-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 18:10 ` Timur Tabi
[not found] ` <48920016.5000506-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2008-07-31 18:21 ` Grant Likely
2008-07-31 18:09 ` Grant Likely
[not found] ` <20080731180959.GA29057-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
2008-07-31 18:13 ` Timur Tabi
2008-07-31 18:28 ` Grant Likely
[not found] ` <20080731182810.GB29097-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
2008-07-31 18:35 ` Timur Tabi
2008-07-31 18:57 ` Jon Smirl
[not found] ` <9e4733910807311157q358640ddyef1f14865c069b8-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 19:01 ` Timur Tabi
2008-07-31 19:25 ` Grant Likely
2008-08-01 0:22 ` [i2c] " Trent Piepho
[not found] ` <Pine.LNX.4.58.0807311656250.10341-13q4cmjDBaTP3RPoUHIrnuTW4wlIGRCZ@public.gmane.org>
2008-08-01 1:19 ` Jon Smirl
[not found] ` <9e4733910807311819i60872285ga4829c841185fdc0-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-01 1:36 ` Trent Piepho
[not found] ` <Pine.LNX.4.58.0807311828580.10341-13q4cmjDBaTP3RPoUHIrnuTW4wlIGRCZ@public.gmane.org>
2008-08-01 1:44 ` Jon Smirl
[not found] ` <9e4733910807311844p142b26ffyb4105df3e136f65-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-01 15:02 ` Timur Tabi
2008-08-01 16:05 ` [i2c] " 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
[not found] ` <ed82fe3e0808010625q53680d42l83f28a6df835f959-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-01 14:32 ` Jon Smirl
2008-08-01 21:14 ` [i2c] " Trent Piepho
2008-08-01 7:25 ` Wolfgang Grandegger
2008-08-01 14:38 ` Grant Likely
[not found] ` <48920607.5040606-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2008-07-31 19:01 ` Scott Wood
2008-07-31 19:08 ` Timur Tabi
2008-07-31 19:15 ` Scott Wood
[not found] ` <48920F69.6020909-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2008-07-31 19:19 ` Timur Tabi
[not found] ` <48921057.8030807-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2008-07-31 19:21 ` Scott Wood
[not found] ` <489210AF.7000909-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
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
[not found] ` <48921187.1090101-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
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
[not found] ` <48921DED.6010403-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2008-07-31 20:19 ` Timur Tabi
2008-07-31 20:28 ` Wolfgang Grandegger
[not found] ` <48922087.4050903-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2008-07-31 20:28 ` Timur Tabi
[not found] ` <48921E44.7010502-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2008-07-31 20:30 ` Grant Likely
2008-07-31 20:32 ` Jon Smirl
[not found] ` <9e4733910807311332q611b43b3y26f64b5269ccb657-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 20:35 ` Grant Likely
[not found] ` <fa686aa40807311335t1dd123d0mc385234ebe55248-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 20:37 ` Timur Tabi
2008-07-31 20:48 ` Grant Likely
2008-07-31 20:55 ` Jon Smirl
[not found] ` <9e4733910807311355q3394b4bfg66c37055384451f7-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 20:56 ` Scott Wood
2008-07-31 20:56 ` Timur Tabi [this message]
2008-07-31 21:03 ` Jon Smirl
[not found] ` <9e4733910807311403o63c37366ldae30e873f33a21e-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 21:10 ` Timur Tabi
2008-07-31 21:14 ` Wolfgang Grandegger
[not found] ` <48922B40.3010808-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
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
[not found] ` <48922218.9020503-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2008-07-31 20:43 ` Jon Smirl
[not found] ` <9e4733910807311343h3a1b21dbub15754090a67fac6-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-31 20:44 ` Timur Tabi
2008-07-31 19:59 ` Grant Likely
[not found] ` <20080731195911.GA29610-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
2008-07-31 20:00 ` Timur Tabi
2008-07-31 20:20 ` Wolfgang Grandegger
[not found] ` <48921EA2.1080600-5Yr1BZd7O62+XT7JhA+gdA@public.gmane.org>
2008-07-31 20:19 ` Timur Tabi
2008-08-01 0:46 ` [i2c] " Trent Piepho
[not found] ` <Pine.LNX.4.58.0807311742230.10341-13q4cmjDBaTP3RPoUHIrnuTW4wlIGRCZ@public.gmane.org>
2008-08-01 14:34 ` Grant Likely
2008-08-01 14:48 ` [i2c] " Geert Uytterhoeven
2008-07-31 17:35 ` Jon Smirl
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