[alsa-devel] [PATCH] ASoC: omap: rx51: Add stereo output support to audio jack

Jarkko Nikula jhnikula at gmail.com
Wed Jan 5 17:29:24 CET 2011

On Wed, 5 Jan 2011 15:55:09 +0000
Mark Brown <broonie at opensource.wolfsonmicro.com> wrote:

> On Wed, Jan 05, 2011 at 05:46:00PM +0200, Jarkko Nikula wrote:
> > This support could have been implemented earlier but I was targeting to have
> > ASoC cross-device support first. But as there's no DAPM widgets anymore in
> > TPA6130, I don't see any other way to implement this than by registering TPA6130
> > controls to aic34a with tpa6130a2_add_controls and by using
> > tpa6130a2_stereo_enable.
> Having thought about it for at least a second I think we should have a
> DAPM context in the cards for all the board-level stuff - does that seem
> resonable?  The patch itself looks good:
I don't know. Probably it would be good if machine widgets are in own
context. Like having own debugfs/sysfs directory for them etc.

In this case it would be just enough if the tpa6130 is a codec driver
having DAPM widgets. Then machine driver wouldn't need any these
exported special tpa6130a2_ functions and soc-dapm could take care of
power changes according to audio map and other info.

But as far as I understood there's no any better way to get rid of pops
in tpa6130a2.


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