[alsa-devel] [RFC v2 PATCH 1/1] ASoC: soc-core: symmetry checking for each DAIs separately

[Dong Aisheng-B29396]

> -----Original Message-----
> From: Tabi Timur-B04825
> Sent: Tuesday, August 30, 2011 4:35 AM
> To: Dong Aisheng-B29396
> Cc: alsa-devel at alsa-project.org; lars at metafoo.de; s.hauer at pengutronix.de;
> broonie at opensource.wolfsonmicro.com; w.sang at pengutronix.de; lrg at ti.com;
> linux-arm-kernel at lists.infradead.org
> Subject: Re: [alsa-devel] [RFC v2 PATCH 1/1] ASoC: soc-core: symmetry
> checking for each DAIs separately
> 
> On Mon, Aug 29, 2011 at 4:15 AM, Dong Aisheng <b29396 at freescale.com>
> wrote:
> > The orginal code does not cover the case that one DAI such as codec
> > may be shared between other two DAIs(CPU).
> 
> Can you give me an example of how this can occur?
> 

Pls check the following case used in mx28evk.
static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {
        {
                .name           = "HiFi Tx",
                .stream_name    = "HiFi Playback",
                .codec_dai_name = "sgtl5000",
                .codec_name     = "sgtl5000.0-000a",
                .cpu_dai_name   = "mxs-saif.0",
                .platform_name  = "mxs-pcm-audio.0",
                .ops            = &mxs_sgtl5000_hifi_ops,
        }, {
                .name           = "HiFi Rx",
                .stream_name    = "HiFi Capture",
                .codec_dai_name = "sgtl5000",
                .codec_name     = "sgtl5000.0-000a",
                .cpu_dai_name   = "mxs-saif.1",
                .platform_name  = "mxs-pcm-audio.1",
                .ops            = &mxs_sgtl5000_hifi_ops,
        },
};
You can also refer to:
http://thread.gmane.org/gmane.linux.ports.arm.kernel/129789/focus=129839

Regards
Dong Aisheng