--- zzzz-none-000/linux-3.10.107/include/sound/ak4113.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/sound/ak4113.h	2021-02-04 17:41:59.000000000 +0000
@@ -287,6 +287,7 @@
 	ak4113_read_t *read;
 	void *private_data;
 	atomic_t wq_processing;
+	struct mutex reinit_mutex;
 	spinlock_t lock;
 	unsigned char regmap[AK4113_WRITABLE_REGS];
 	struct snd_kcontrol *kctls[AK4113_CONTROLS];
@@ -317,5 +318,13 @@
 int snd_ak4113_external_rate(struct ak4113 *ak4113);
 int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags);
 
+#ifdef CONFIG_PM
+void snd_ak4113_suspend(struct ak4113 *chip);
+void snd_ak4113_resume(struct ak4113 *chip);
+#else
+static inline void snd_ak4113_suspend(struct ak4113 *chip) {}
+static inline void snd_ak4113_resume(struct ak4113 *chip) {}
+#endif
+
 #endif /* __SOUND_AK4113_H */