From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: John Bonesio <bones@secretlab.ca>
Cc: Grant Likely <grant.likely@secretlab.ca>,
alsa-devel@alsa-project.org,
Eric Millbrandt <emillbrandt@dekaresearch.com>
Subject: Re: [PATCH] ASoC: MPC5200: Support for buffer wrap around
Date: Sun, 2 Aug 2009 12:49:50 +0100 [thread overview]
Message-ID: <20090802114950.GA1778@sirena.org.uk> (raw)
In-Reply-To: <1249139096.4582.13.camel@riker>
On Sat, Aug 01, 2009 at 08:04:56AM -0700, John Bonesio wrote:
> When I umuted the PCM mixer setting, this printk text did not appear,
> yet when I read the mixer register setting for the headphone, it was set
> back to mute.
Like I said before, exactly which control are you adjusting here?
> If there is code in software doing this, it's very subtle.
My money would be on the AC97 controller having problems; the quality of
SoC AC97 controllers is variable. It certainly doesn't sound like a
WM9712 issue; as I say I'd be very surprised if such an issue hadn't
come up before given how widely deployed the part is.
next prev parent reply other threads:[~2009-08-02 11:49 UTC|newest]
Thread overview: 21+ 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 [this message]
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
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
-- strict thread matches above, loose matches on Subject: below --
2009-07-29 15:38 [PATCH] ASoC: MPC5200: Support for buffer wrap around John Bonesio
2009-08-05 16:44 ` John Bonesio
2009-08-05 17:05 ` Mark Brown
2009-08-05 18:05 ` Grant Likely
2009-08-05 18:34 ` Jon Smirl
2009-08-05 21:11 ` Mark Brown
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