From: Dmitry Baryshkov <dbaryshkov@gmail.com>
To: alsa-devel@alsa-project.org
Subject: Re: PXA27x and AC97 reset bug
Date: Thu, 7 Feb 2008 01:10:55 +0000 (UTC) [thread overview]
Message-ID: <fodlqv$iet$1@ger.gmane.org> (raw)
In-Reply-To: 87ejbpheqk.fsf@polgara.paysbobval
Hi,
Robert Jarzmik wrote:
> I hope this subject wasn't previously discussed, as I couldn't find a
> trace ...
>
> The basic question is : why can't the PXA27x reset the AC97 bus in front
> of an wm9713 ?
I have nearly the same problem here: pxa255, wm9712, sharp SL-6000 (tosa).
However resetting the codec in a loop sometime helps.
Any info would be appreciated.
> And more precisely, I'd like to know :
> - are there any references to this bug (Intel note, mailing list ref,
> ...) - is it a hardware bug on PXA27x side ? - is it a hardware bug on
> wm9713 side ? - is there a known generic workaround (assuming GPIO113
> is connected to wm9713
> reset line is not generic for me) ?
> - is there a known platform where this bug does not happen ?
--
With best wishes
Dmitry
next prev parent reply other threads:[~2008-02-07 1:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-06 23:00 PXA27x and AC97 reset bug Robert Jarzmik
2008-02-07 1:10 ` Dmitry Baryshkov [this message]
2008-02-07 11:36 ` Mark Brown
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