linux-kernel - Re: [PATCH v3] sound/soc/lapis: add platform driver for ML7213

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Message-ID: <CANKRQngo_Wz-5XqdYe9TWe2QhmVgUTZc3TRajFT+CLjvEAWVdA@mail.gmail.com>
Date:	Fri, 9 Mar 2012 15:26:27 +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 v3] sound/soc/lapis: add platform driver for ML7213

On Thu, Mar 8, 2012 at 8:05 PM, Mark Brown
<broonie@...nsource.wolfsonmicro.com> wrote:
>> > You've still not explained the problem you're seeing but this sounds
>> > like something that should work.  Please address the
>> * Faced problem if there are no platform settings.
>> machine driver's hw_params is not called
>> platform_driver's functions(snd_pcm_ops, snd_soc_platform_driver) are
>> not called.
>> As a result, the following message is not showed . (by soc_pcm.c)
>> printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name,
>>          cpu_dai->name);
> This makes no sense.  Registering a platform device will have *no*
> impact on ASoC, it only cares if the relevant ASoC function drivers have
> come up.  Probably there was some other problem with what you were doing
> but it's hard to say...

I've confirmed that driver detected by ASoC correctly without these
platform functions.
Please check next patch series.

thanks.
-- 
ROHM Co., Ltd.
tomoya
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