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ASoC: arizona: Add a notifier chain for CODEC events

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Add a notifier chain that can be used from the machine driver to catch
events generated by the CODEC.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax
2016-05-13 16:45:18 +01:00
committed by Mark Brown
parent 1a695a905c
commit 2230c49f09
5 changed files with 57 additions and 0 deletions
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10
sound/soc/codecs/arizona.h
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@@ -306,6 +306,7 @@ extern int arizona_set_fll(struct arizona_fll *fll, int source,
extern int arizona_init_spk(struct snd_soc_codec *codec);
extern int arizona_init_gpio(struct snd_soc_codec *codec);
extern int arizona_init_mono(struct snd_soc_codec *codec);
extern int arizona_init_notifiers(struct snd_soc_codec *codec);
extern int arizona_free_spk(struct snd_soc_codec *codec);
@@ -317,4 +318,13 @@ int arizona_set_output_mode(struct snd_soc_codec *codec, int output,
extern bool arizona_input_analog(struct snd_soc_codec *codec, int shift);
extern const char *arizona_sample_rate_val_to_name(unsigned int rate_val);
extern int arizona_register_notifier(struct snd_soc_codec *codec,
struct notifier_block *nb,
int (*notify)(struct notifier_block *nb,
unsigned long action,
void *data));
extern int arizona_unregister_notifier(struct snd_soc_codec *codec,
struct notifier_block *nb);
#endif