From: eric.y.miao@gmail.com (Eric Miao)
To: linux-arm-kernel@lists.infradead.org
Subject: PXA270 audio problem
Date: Thu, 23 Sep 2010 14:08:05 +0800 [thread overview]
Message-ID: <AANLkTimOM7EnMgfDVqZ-Oq_cLOUwR-GeKEwDD9HsLqQa@mail.gmail.com> (raw)
In-Reply-To: <AANLkTi=_AANevVpthOKuRfkkvU9mKMWsmpHc+XohoUwg@mail.gmail.com>
On Thu, Sep 23, 2010 at 1:33 PM, Santhosh N <san.mlists@gmail.com> wrote:
> Dear All,
>
> I am running linux 2.6.26 kernel on a PXA270 board. A UCB1400 chip
> used for audio and touchscreen in that. I have been facing a problem
> with audio.
>
> The audio plays properly, but suddenly stops. I get the following message:
> ALSA sound/core/pcm_native.c:1513: playback drain error (DMA or IRQ trouble?)
>
> I have noticed that the DMA interrupts stop coming. Where as the AC97
> interrupts come properly.
>
> Any help in solving this will be grateful.
>
Dumping the DMA registers and the AC97 controller registers would
be helpful.
> Regards,
> Santhosh N
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
next prev parent reply other threads:[~2010-09-23 6:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-23 5:33 PXA270 audio problem Santhosh N
2010-09-23 6:08 ` Eric Miao [this message]
2010-09-23 7:05 ` Santhosh N
2010-09-23 7:24 ` Santhosh N
2010-09-24 11:35 ` Marek Vasut
2010-10-10 14:25 ` Santhosh N
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=AANLkTimOM7EnMgfDVqZ-Oq_cLOUwR-GeKEwDD9HsLqQa@mail.gmail.com \
--to=eric.y.miao@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).