From: David Gibson <david@gibson.dropbear.id.au>
To: Timur Tabi <timur@freescale.com>
Cc: Liam Girdwood <liam.girdwood@wolfsonmicro.com>,
alsa-devel@alsa-project.org, linuxppc-dev@ozlabs.org
Subject: Re: [alsa-devel] [PATCH] ASoC drivers for the Freescale MPC8610 SoC
Date: Sun, 6 Jan 2008 11:46:37 +1100 [thread overview]
Message-ID: <20080106004637.GJ4326@localhost.localdomain> (raw)
In-Reply-To: <477EEDFA.9010205@freescale.com>
On Fri, Jan 04, 2008 at 08:39:54PM -0600, Timur Tabi wrote:
> David Gibson wrote:
>
> > And what distinction are you drawing between "first" and "second"
> > here?
>
> Oh, that's an easy one: The CS4270 can work without an I2C or SPI connection,
> but it will never work without an I2S connection.
>
> > Why would the I2S need to scan for codecs? Wouldn't it be up to the
> > codec driver to register with I2S?
>
> Not in ASoC V1. The codec driver registers with ASoC, but the actual
> connection to other devices (e.g. the I2S driver) is done either in the I2S
> driver or in the fabric driver, depending on your mood. And that connection
> is done via a pointer to a structure in the codec driver.
Ok, but couldn't you strucutre your I2S or fabric driver so that it
only becomes fully operational once the codec driver has registered
with it?
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
next prev parent reply other threads:[~2008-01-06 0:46 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-20 0:03 [PATCH] ASoC drivers for the Freescale MPC8610 SoC Timur Tabi
2007-12-20 4:06 ` Olof Johansson
2007-12-20 14:24 ` Timur Tabi
2007-12-20 13:54 ` [alsa-devel] " Takashi Iwai
2007-12-20 17:04 ` Timur Tabi
2007-12-21 5:28 ` Lee Revell
2007-12-23 3:23 ` Timur Tabi
2007-12-20 22:39 ` Olof Johansson
2007-12-20 22:37 ` Timur Tabi
2007-12-20 22:43 ` Scott Wood
2007-12-23 2:58 ` Timur Tabi
2008-01-02 18:08 ` Scott Wood
2007-12-20 14:47 ` Jon Loeliger
2007-12-20 22:29 ` Jon Smirl
2007-12-20 22:32 ` Timur Tabi
2007-12-20 22:38 ` Jon Smirl
2007-12-20 22:40 ` Timur Tabi
2007-12-20 22:44 ` Scott Wood
2007-12-20 23:13 ` Jon Smirl
2007-12-21 0:00 ` David Gibson
2008-01-01 17:25 ` Jon Smirl
2008-01-01 17:42 ` Jon Smirl
2008-01-02 15:19 ` Timur Tabi
2008-01-02 15:34 ` Jon Smirl
2008-01-03 17:54 ` Timur Tabi
2008-01-03 18:13 ` Grant Likely
2008-01-03 18:20 ` Timur Tabi
2008-01-03 18:32 ` Grant Likely
2008-01-03 23:51 ` David Gibson
2008-01-05 2:39 ` [alsa-devel] " Timur Tabi
2008-01-06 0:46 ` David Gibson [this message]
2008-01-07 14:24 ` Mark Brown
2008-01-07 15:52 ` Timur Tabi
2008-01-07 18:28 ` Mark Brown
2008-01-10 3:49 ` David Gibson
2008-01-10 5:41 ` Jon Smirl
2008-01-10 10:30 ` Liam Girdwood
2008-01-10 15:39 ` Timur Tabi
2008-01-10 16:01 ` Grant Likely
2008-01-10 16:03 ` Timur Tabi
2008-01-10 20:10 ` Jon Smirl
2008-01-10 20:13 ` Timur Tabi
2008-01-10 20:24 ` Grant Likely
2008-01-10 20:35 ` Timur Tabi
2008-01-10 20:39 ` Jon Smirl
2008-01-10 20:44 ` Timur Tabi
2008-01-07 18:44 ` Liam Girdwood
2008-01-07 18:45 ` Timur Tabi
2008-01-02 16:12 ` Grant Likely
2008-01-03 18:08 ` Timur Tabi
2008-01-03 18:17 ` Grant Likely
2008-01-03 18:54 ` Scott Wood
2008-01-03 19:13 ` Grant Likely
2008-01-03 19:18 ` Scott Wood
2008-01-03 23:13 ` [alsa-devel] " Mark Brown
2008-01-05 2:35 ` Timur Tabi
2008-01-05 3:28 ` Grant Likely
2008-01-02 0:26 ` David Gibson
2008-01-02 15:10 ` Timur Tabi
2008-01-02 17:23 ` [alsa-devel] " Mark Brown
2008-01-03 18:23 ` Timur Tabi
2008-01-03 23:00 ` Mark Brown
2008-01-05 2:43 ` Timur Tabi
2008-01-07 13:37 ` Mark Brown
2008-01-02 4:27 ` Jon Smirl
2008-01-02 15:29 ` Timur Tabi
2008-01-02 15:56 ` Jon Smirl
2008-01-02 16:32 ` Grant Likely
2008-01-02 17:12 ` Jon Smirl
2008-01-02 17:22 ` Grant Likely
2008-01-02 18:43 ` Jon Smirl
2008-01-02 18:50 ` Grant Likely
2008-01-02 18:56 ` Jon Smirl
2008-01-03 4:46 ` David Gibson
2008-01-03 14:33 ` Jon Smirl
2008-01-03 17:57 ` Timur Tabi
2008-01-02 16:28 ` Grant Likely
2008-01-02 18:49 ` [alsa-devel] " Mark Brown
2008-01-03 18:16 ` Timur Tabi
2008-01-03 23:47 ` David Gibson
2008-01-04 13:39 ` Mark Brown
2008-01-03 18:14 ` Timur Tabi
2008-01-03 18:25 ` Grant Likely
2008-01-03 18:28 ` Timur Tabi
2008-01-03 18:38 ` Grant Likely
2008-01-03 4:44 ` David Gibson
2008-01-03 14:54 ` Jon Smirl
2008-01-04 5:01 ` David Gibson
2008-01-03 18:16 ` Timur Tabi
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