linux-kernel - Re: [PATCH v6] sound/soc/lapis: add machine driver for ML7213 Carrier Board

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Message-ID: <CANKRQni-8w+2p6=ZisQ+GXhGpNmYhesKfTHfOjWGGrQrhvTFGA@mail.gmail.com>
Date:	Thu, 15 Mar 2012 13:50:48 +0900
From:	Tomoya MORINAGA <tomoya.rohm@...il.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Liam Girdwood <lrg@...com>, Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.de>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, qi.wang@...el.com,
	yong.y.wang@...el.com, joel.clark@...el.com, kok.howg.ewe@...el.com
Subject: Re: [PATCH v6] sound/soc/lapis: add machine driver for ML7213 Carrier Board

On Wed, Mar 14, 2012 at 11:45 PM, Mark Brown
<broonie@...nsource.wolfsonmicro.com> wrote:
> On Fri, Mar 09, 2012 at 03:38:11PM +0900, Tomoya MORINAGA wrote:
>
>> +     /* set codec DAI configuration */
>> +     ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
>> +                              SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
>> +     if (ret < 0)
>> +             return ret;
>> +
>> +     /* set cpu DAI configuration */
>> +     ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
>> +                              SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
>
> This looks very broken, you're setting the two ends of the link to
> different configurations.  If this is needed it should be documented why.
>
> Also, this should be set in the dai_link structure as data rather than
> set each time.

OK.
codec is slave, i2s controller is master.
So, I'll use SND_SOC_DAIFMT_CBS_CFM.

thanks.
-- 
ROHM Co., Ltd.
tomoya
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