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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2016-05-13 18:45:18 +0300
committerMark Brown <broonie@kernel.org>2016-05-30 18:14:36 +0300
commit2230c49f09b552454eac51b81e9e4e41060b5e70 (patch)
tree3bc1af20fcf6cb5b3fc8c98f28cce333a6dc6dc5 /sound/soc/codecs/arizona.h
parent1a695a905c18548062509178b98bc91e67510864 (diff)
downloadlinux-2230c49f09b552454eac51b81e9e4e41060b5e70.tar.xz
ASoC: arizona: Add a notifier chain for CODEC events
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>
Diffstat (limited to 'sound/soc/codecs/arizona.h')
-rw-r--r--sound/soc/codecs/arizona.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h
index ce0531b8c632..245d13c157a5 100644
--- a/sound/soc/codecs/arizona.h
+++ b/sound/soc/codecs/arizona.h
@@ -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