From: Jon Smirl <jonsmirl@gmail.com>
To: John Bonesio <bones@secretlab.ca>
Cc: Grant Likely <grant.likely@secretlab.ca>,
alsa-devel@alsa-project.org,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Eric Millbrandt <emillbrandt@dekaresearch.com>
Subject: Re: MPC5200/WM9712 mute problem
Date: Fri, 7 Aug 2009 11:16:12 -0400 [thread overview]
Message-ID: <9e4733910908070816x4aa3ab8nc79fd65dd56efca0@mail.gmail.com> (raw)
In-Reply-To: <1249656522.5844.89.camel@riker>
On Fri, Aug 7, 2009 at 10:48 AM, John Bonesio<bones@secretlab.ca> wrote:
> On Fri, 2009-08-07 at 10:56 +0100, Mark Brown wrote:
>> On Thu, Aug 06, 2009 at 10:28:41AM -0700, John Bonesio wrote:
>>
>> > I'm open to more suggestions or thoughts on the approach I've taken so
>> > far.
>>
>> The approach you've been taking sounds reasonable; at this point I'd be
>> looking at trying to confirm that the controller is doing what's been
>> asked of it. Checking that the CODEC power rails are all within spec
>> and looking at other bits in the same register may also be useful.
You can turn on an interrupt that gets triggered when the register
wire completes. That would give you a clue if too many register writes
are happening.
A DSO or logical analyzer would make this much faster to isolate.
>>
>> Is the system otherwise idle when the problem occurs?
>
> Yes the system is idle - just me fiddling with the mute settings.
>
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>
--
Jon Smirl
jonsmirl@gmail.com
next prev parent reply other threads:[~2009-08-07 15:16 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-31 23:08 [PATCH] ASoC: MPC5200: Support for buffer wrap around John Bonesio
2009-08-01 1:57 ` Grant Likely
2009-08-01 9:57 ` Mark Brown
2009-08-01 13:47 ` Jon Smirl
2009-08-01 15:04 ` John Bonesio
2009-08-01 16:30 ` Jon Smirl
2009-08-02 11:49 ` Mark Brown
2009-08-05 16:30 ` [PATCH] ASoC: WM9712 Codec: Workaround an unmute problem (Was: Re: [PATCH] ASoC: MPC5200: Support for buffer wrap around) John Bonesio
2009-08-05 17:03 ` MPC5200/WM9712 mute problem Mark Brown
2009-08-06 17:28 ` John Bonesio
2009-08-07 9:56 ` Mark Brown
2009-08-07 14:48 ` John Bonesio
2009-08-07 15:16 ` Jon Smirl [this message]
2009-08-05 17:16 ` [PATCH] ASoC: WM9712 Codec: Workaround an unmute problem (Was: Re: [PATCH] ASoC: MPC5200: Support for buffer wrap around) Jon Smirl
2009-08-05 17:27 ` Jon Smirl
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