diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index f0f3d72c0da7..f11f575fd1da 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -378,8 +378,8 @@ struct sof_ipc_fw_tracing_ops {
 
 /**
  * struct sof_ipc_pm_ops - IPC-specific PM ops
- * @ctx_save:		Function pointer for context save
- * @ctx_restore:	Function pointer for context restore
+ * @ctx_save:		Optional function pointer for context save
+ * @ctx_restore:	Optional function pointer for context restore
  */
 struct sof_ipc_pm_ops {
 	int (*ctx_save)(struct snd_sof_dev *sdev);