17 Sep
2010
17 Sep
'10
3 p.m.
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@gmail.com
Acked-by: Mark Brown broonie@opensource.wolfsonmicro.com