diff --git a/arch/arm/include/cxd56xx/audio.h b/arch/arm/include/cxd56xx/audio.h
index 030882f9ce1..427b36633cc 100644
--- a/arch/arm/include/cxd56xx/audio.h
+++ b/arch/arm/include/cxd56xx/audio.h
@@ -33,9 +33,7 @@
  *
  ****************************************************************************/
 
-/* audioutils Audio Utility
- *
- */
+/* audioutils Audio Utility */
 
 #ifndef __ARCH_ARM_INCLUDE_CXD56XX_CXD56_AUDIO_H
 #define __ARCH_ARM_INCLUDE_CXD56XX_CXD56_AUDIO_H
@@ -943,6 +941,7 @@ uint32_t cxd56_audio_get_micmap(void);
  *
  * Setup tone generator
  */
+
 bool board_audio_tone_generator(bool en, int16_t vol, uint16_t freq);
 
 #ifdef __cplusplus
diff --git a/boards/arm/cxd56xx/common/src/cxd56_audio.c b/boards/arm/cxd56xx/common/src/cxd56_audio.c
index 9c313c0d922..8c695734350 100644
--- a/boards/arm/cxd56xx/common/src/cxd56_audio.c
+++ b/boards/arm/cxd56xx/common/src/cxd56_audio.c
@@ -112,6 +112,7 @@ static bool check_pin_i2s_mode(uint32_t pin)
  *   Power on/off the audio device on the board.
  *
  ****************************************************************************/
+
 bool board_audio_power_control(bool en)
 {
   if (en)
diff --git a/boards/arm/cxd56xx/spresense/include/cxd56_audio.h b/boards/arm/cxd56xx/spresense/include/cxd56_audio.h
index 75b030fe1d6..28ad54bb87d 100644
--- a/boards/arm/cxd56xx/spresense/include/cxd56_audio.h
+++ b/boards/arm/cxd56xx/spresense/include/cxd56_audio.h
@@ -73,7 +73,6 @@ extern "C"
 
 bool board_audio_power_control(bool en);
 
-
 /****************************************************************************
  * Name: board_aca_power_control
  *