diff --git a/arch/arm/src/lpc43xx/hardware/lpc43_aes.h b/arch/arm/src/lpc43xx/hardware/lpc43_aes.h
index bd3971e4b71..cc5bf30ee65 100644
--- a/arch/arm/src/lpc43xx/hardware/lpc43_aes.h
+++ b/arch/arm/src/lpc43xx/hardware/lpc43_aes.h
@@ -53,42 +53,43 @@ struct lpc43_aes_s
 {
   /* Initialize the AES engine */
 
-  void (*aes_Init)(void);
+  void (*aes_init)(void);
 
   /* Offset 0x04 -- Defines AES engine operation mode.
    *  See enum lpc43_aescmd_e
    */
 
-  unsigned int (*aes_SetMode)(unsigned int cmd);
+  unsigned int (*aes_set_mode)(unsigned int cmd);
 
   /* Load 128-bit AES user keys */
 
-  void (*aes_LoadKey1)(void);
-  void (*aes_LoadKey2)(void);
+  void (*aes_load_key1)(void);
+  void (*aes_load_key2)(void);
 
   /* Loads randomly generated key in AES engine. To update the RNG and load
-   * a new random number, use the API call otp_GenRand before aes_LoadKeyRNG.
+   * a new random number, use the API call otp_GenRand before
+   * aes_load_key_rng.
    */
 
-  void (*aes_LoadKeyRNG)(void);
+  void (*aes_load_key_rng)(void);
 
   /* Loads 128-bit AES software defined user key (16 bytes) */
 
-  void (*aes_LoadKeySW)(const unsigned char *key);
+  void (*aes_load_key_sw)(const unsigned char *key);
 
   /* Loads 128-bit AES initialization vector (16 bytes) */
 
-  void (*aes_LoadIV_SW)(const unsigned char *iv);
+  void (*aes_load_iv_sw)(const unsigned char *iv);
 
   /* Loads 128-bit AES IC specific initialization vector, which is used to
    * decrypt a boot image.
    */
 
-  void (*aes_LoadIV_IC)(void);
+  void (*aes_load_iv_ic)(void);
 
   /* Process data */
 
-  unsigned int (*aes_Operate)(unsigned char *out,
+  unsigned int (*aes_operate)(unsigned char *out,
                               const unsigned char *in, unsigned blocks);
 };
 
diff --git a/arch/arm/src/lpc43xx/lpc43_aes.c b/arch/arm/src/lpc43xx/lpc43_aes.c
index 52604667876..4735f99b1ad 100644
--- a/arch/arm/src/lpc43xx/lpc43_aes.c
+++ b/arch/arm/src/lpc43xx/lpc43_aes.c
@@ -106,33 +106,33 @@ static int aes_init(FAR const void *iv,
                     AES_API_CMD_DECODE_ECB : AES_API_CMD_DECODE_CBC;
     }
 
-  g_aes->aes_Init();
+  g_aes->aes_init();
 
   if (key != NULL)
     {
-      g_aes->aes_LoadKeySW(key);
+      g_aes->aes_load_key_sw(key);
     }
   else
     {
       switch (keysize)
         {
           case 0:
-            g_aes->aes_LoadKey1();
+            g_aes->aes_load_key1();
             break;
 
           case 1:
-            g_aes->aes_LoadKey2();
+            g_aes->aes_load_key2();
             break;
 
           case 2:
-            g_aes->aes_LoadKeyRNG();
+            g_aes->aes_load_key_rng();
             break;
         }
     }
 
-  g_aes->aes_LoadIV_SW((const unsigned char *)iv);
+  g_aes->aes_load_iv_sw((const unsigned char *)iv);
 
-  ret = g_aes->aes_SetMode(cmd);
+  ret = g_aes->aes_set_mode(cmd);
   switch (ret)
     {
       case AES_API_ERR_WRONG_CMD:
@@ -170,7 +170,7 @@ static int aes_update(FAR const void *out,
       return -EINVAL;
     }
 
-  return g_aes->aes_Operate((unsigned char *)out,
+  return g_aes->aes_operate((unsigned char *)out,
                             (unsigned char *)in, inl / 16);
 }