AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

ASoC: tlv320aic3x: Add virtual output pin Detection

Browse Source 
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>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Jarkko Nikula 2010-09-17 14:39:01 +03:00 committed by Liam Girdwood
parent 611ad378b3
commit 19f7ac5038
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sound/soc/codecs/tlv320aic3x.c
View File

@ -646,6 +646,14 @@ static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("LINE1R"),
SND_SOC_DAPM_INPUT("LINE2L"),
SND_SOC_DAPM_INPUT("LINE2R"),
/*
* Virtual output pin to detection block inside codec. This can be
* used to keep codec bias on if gpio or detection features are needed.
* Force pin on or construct a path with an input jack and mic bias
* widgets.
*/
SND_SOC_DAPM_OUTPUT("Detection"),
};
static const struct snd_soc_dapm_widget aic3007_dapm_widgets[] = {