enum adau17x1_micbias_voltage micbias);
bool adau17x1_readable_register(struct device *dev, unsigned int reg);
bool adau17x1_volatile_register(struct device *dev, unsigned int reg);
+bool adau17x1_precious_register(struct device *dev, unsigned int reg);
int adau17x1_resume(struct snd_soc_codec *codec);
extern const struct snd_soc_dai_ops adau17x1_dai_ops;