diff options
| author | Jarkko Nikula <jarkko.nikula@nokia.com> | 2008-06-25 14:42:07 +0300 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-06-26 09:02:10 +0200 |
| commit | e2be2ccf9416bb4e0eb5f851967e79261f41d7e5 (patch) | |
| tree | 12a0d4b9d2a920f9f679d817f837b01e73af97e3 /sound/soc | |
| parent | a5c95e90c1baa9c1114875264bbd283526eb8377 (diff) | |
ALSA: ASoC: Add support for generic DAPM register modifier widget
This generic register modifier widget is for updating multiple codec
register bits at once when the widget changes its power state.
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/soc-dapm.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 728f3ac2f304..25363829e605 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -443,6 +443,25 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) } /* + * Handler for generic register modifier widget. + */ +int dapm_reg_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + unsigned int val; + + if (SND_SOC_DAPM_EVENT_ON(event)) + val = w->on_val; + else + val = w->off_val; + + snd_soc_update_bits(w->codec, -(w->reg + 1), + w->mask << w->shift, val << w->shift); + + return 0; +} + +/* * Scan each dapm widget for complete audio path. * A complete path is a route that has valid endpoints i.e.:- * |