ASoC: Provide per widget type callback when executing DAPM sequences
Many modern devices have features such as DC servos which take time to start.
Currently these are handled by per-widget events but this makes it difficult
to paralleise operations on multiple widgets, meaning delays can end up
being needlessly serialised. By providing a callback to drivers when all
widgets of a given type have been handled during a DAPM sequence the core
allows drivers to start operations separately and wait for them to complete
much more simply.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9952254..d244f90 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -546,6 +546,9 @@
/* codec bias level */
int (*set_bias_level)(struct snd_soc_codec *,
enum snd_soc_bias_level level);
+
+ void (*seq_notifier)(struct snd_soc_dapm_context *,
+ enum snd_soc_dapm_type);
};
/* SoC platform interface */