[alsa-devel] Channel swapping issue on TI OMAP3/TWL4030

Jarkko Nikula jhnikula at gmail.com
Sun Feb 13 10:25:01 CET 2011


On Sat, 12 Feb 2011 11:16:42 -0500
ylin at mail.com wrote:

> We are using a customized TI OMAP3 with TWL4030, similar to OMAP3EVM 
> board.  We noticed occasionally (after bring up few hours) the mic 
> channel  audio is swapped.  Has anyone seen similar problem? Any 
> suggestion where the problem might be?
> 
Is this with recent kernels? There were this channel swapping problem
before but it got fixed by Eero Nurkkala for the 2.6.32 kernel by
following commits:

commit 9abea08e43c6cfc18399e42cbc6028d111532f61
"OMAP: McBSP: Provide functions for ASoC frame syncronization"
and
commit ca6e2ce08679c094878d7f39a0349a7db1d13675
"ASoC: Always syncronize audio transfers on frames"

-- 
Jarkko


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