+#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
+