[alsa-devel] [PATCH] ASoC: tlv320aic3x: Add virtual output pin Detection

[Mark Brown]

On Fri, Sep 17, 2010 at 02:39:01PM +0300, Jarkko Nikula wrote:
> Purpose of this virtual Detection pin is to keep codec bias on whenever the
> GPIO or jack detection features are needed.
> 
> Jack detection needs a mic bias so machine drivers can construct a following
> route for instance for keeping the path and codec bias on:

> "Input Jack" -> "Mic Bias xV" -> "Detection" -> detection block inside codec.

> For the GPIO the machine driver can force the pin on with
> snd_soc_dapm_force_enable_pin.

> Signed-off-by: Jarkko Nikula <jhnikula at gmail.com>

Acked-by: Mark Brown <broonie at opensource.wolfsonmicro.com>