linux-kernel - Re: [PATCH] New ASoC Drivers for ADI AD1938 codec

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Date:	Fri, 19 Jun 2009 07:05:48 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Barry Song <21cnbao@...il.com>, lrg@...mlogic.co.uk,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] New ASoC Drivers for ADI AD1938 codec

On Fri, Jun 19, 2009 at 06:47, Mark Brown wrote:
> On Fri, Jun 19, 2009 at 05:28:15PM +0800, Barry Song wrote:
>> 1. add AD1938 codec driver                   (codec)
>> 2. add blackfin SPORT-TDM DAI and PCM driver (platform)
>> 3. add bf5xx board with AD1938 driver        (machine)
>
> As Liam said you really need to submit this as a patch series rather
> than as a single big patch - as your commit log here indicates you've
> got several different things going on here.

blah, i had this queued locally with a "todo:split".  wanted to wait
for Barry to finish developing the driver first though.

at any rate, i hate to sound like a broken record wrt my alsa
ignorance, but i'm thinking the logical split would be like Barry
numbered it -- one patch for sound/codec/, one patch for the TDM
transport, and one patch for hooking up the AD1938 to TDM.

>> +static int __devinit ad1938_spi_probe(struct spi_device *spi)
>> +{
>> +     spi->dev.power.power_state = PMSG_ON;
>> +     ad1938_socdev->card->codec->control_data = spi;
>> +
>> +     return 0;
>> +}
>> +
>> +static int __devexit ad1938_spi_remove(struct spi_device *spi)
>> +{
>> +     return 0;
>> +}
>
> Your device probing should all be restructured so that the SPI device
> for the CODEC is registered as any other SPI device rather than being
> set up as part of probing the ASoC device.  See the wm8731 driver for
> an example of doing this for a SPI device.
>
> This will require that the arch code for any systems with the ad1938
> do the setup of the device.

so should sound/soc/blackfin/bf5xx-ad1938.c even exist in the first place ?
-mike
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