From: Michele Da Rold <michele.darold@ecsproject.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: dp@opensource.wolfsonmicro.com, alsa-devel@alsa-project.org
Subject: Re: wm8974 and sam9g45 atmel
Date: Fri, 17 Jun 2011 17:03:01 +0200 [thread overview]
Message-ID: <4DFB6CA5.9010202@ecsproject.com> (raw)
In-Reply-To: <4DFB1CEA.2060308@ecsproject.com>
Il 17/06/2011 11:22, Michele Da Rold ha scritto:
> Il 10/06/2011 12:31, Mark Brown ha scritto:
>> On Thu, Jun 09, 2011 at 05:11:48PM +0200, Michele Da Rold wrote:
>>> Hello everybody, I'm starting a new development with a Atmel SAM9G45 and
>>> a WM8974.
>>
>> Please always CC maintainers on mails - traffic on the mailing list is
>> easily lost.
>>
>>> I'm using kernel 2.6.33.2
>>
>> This kernel is *very* old - I would strongly recommend updating to a
>> more current kernel if you're looking for support.
>>
> Updated to 2.6.39.1!
>>> Putting some dedug messagge the driver not call the function
>>> "set_bias_level", and call the mute function with mute=0.
>>> Testing the MCLK signal I not see any clock on pin because I never call
>>> clk_enable!!
>>
>> Have you routed audio from the DAI to an output using the ALSA controls?
>> If you haven't connected an output path up then the kernel won't power
>> anything on.
>>
> Now I have configured wm8974 like slave, the ssc generate BCLK e FRAME
> signal and MCLK but I haven't output (I'm doing a playback)
> I'm new to alsa development so I haven't understand how to route audio
> to DAI from output, could you help me?
>
UPDATE!!!!!!!
Using amixer I have put to on the numid=61,iface=MIXER,name='Speaker
Mixer PCM Playback Switch' ON
numid=46,iface=MIXER,name='Speaker Playback Volume' 63 (max value)
and then the playback start but at speaker output I have only noise no
sound!!
I have another question:
it's better to use wm8974 like master? because I have see that the atmel
ssc is not so good generating clocks....
Thank you
Michele
> Best regards
>
> _______________________________________________
>> Alsa-devel mailing list
>> Alsa-devel@alsa-project.org
>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>
>
next prev parent reply other threads:[~2011-06-17 15:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-09 15:11 wm8974 and sam9g45 atmel Michele Da Rold
2011-06-10 10:31 ` Mark Brown
2011-06-17 9:22 ` Michele Da Rold
2011-06-17 15:03 ` Michele Da Rold [this message]
2011-06-24 12:09 ` Mark Brown
2011-06-28 10:22 ` wm8974 sam9g45 part #2 Michele Da Rold
2011-06-29 3:03 ` Mark Brown
2011-06-29 16:58 ` Michele Da Rold
2014-07-11 6:01 ` wm8974 and sam9g45 atmel Sangilikumar
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