diff --git a/arch/arm/src/stm32/stm32_rcc.h b/arch/arm/src/stm32/stm32_rcc.h
index d331ab90b64..79949cd60ca 100644
--- a/arch/arm/src/stm32/stm32_rcc.h
+++ b/arch/arm/src/stm32/stm32_rcc.h
@@ -33,8 +33,8 @@
  *
  ************************************************************************************/
 
-#ifndef __ARCH_ARM_SRC_STM32_STM32_RRC_H
-#define __ARCH_ARM_SRC_STM32_STM32_RRC_H
+#ifndef __ARCH_ARM_SRC_STM32_STM32_RCC_H
+#define __ARCH_ARM_SRC_STM32_STM32_RCC_H
 
 /************************************************************************************
  * Included Files
@@ -299,11 +299,7 @@ void stm32_clockenable(void);
  * Name: stm32_rcc_enablelse
  *
  * Description:
- *   Enable the External Low-Speed (LSE) Oscillator and, if the RTC is
- *   configured, setup the LSE as the RTC clock source, and enable the RTC.
- *
- *   For the STM32L15X family, this will also select the LSE as the clock source of
- *   the LCD.
+ *   Enable the External Low-Speed (LSE) Oscillator.
  *
  * Input Parameters:
  *   None
@@ -340,4 +336,4 @@ void stm32_rcc_disablelsi(void);
 }
 #endif
 #endif /* __ASSEMBLY__ */
-#endif /* __ARCH_ARM_SRC_STM32_STM32_RRC_H */
+#endif /* __ARCH_ARM_SRC_STM32_STM32_RCC_H */
diff --git a/arch/arm/src/stm32/stm32_waste.h b/arch/arm/src/stm32/stm32_waste.h
index 4d13700ea2c..6c800c756f7 100644
--- a/arch/arm/src/stm32/stm32_waste.h
+++ b/arch/arm/src/stm32/stm32_waste.h
@@ -76,4 +76,4 @@ void up_waste(void);
 #endif
 
 #endif /* __ASSEMBLY__ */
-#endif /* __ARCH_ARM_SRC_STM32_STM32_RRC_H */
+#endif /* __ARCH_ARM_SRC_STM32_STM32_WASTE_H */
diff --git a/arch/arm/src/stm32f7/stm32_rcc.h b/arch/arm/src/stm32f7/stm32_rcc.h
index 40f3155ccad..9320c34aa6d 100644
--- a/arch/arm/src/stm32f7/stm32_rcc.h
+++ b/arch/arm/src/stm32f7/stm32_rcc.h
@@ -33,8 +33,8 @@
  *
  ************************************************************************************/
 
-#ifndef __ARCH_ARM_SRC_STM32F7_STM32_RRC_H
-#define __ARCH_ARM_SRC_STM32F7_STM32_RRC_H
+#ifndef __ARCH_ARM_SRC_STM32F7_STM32_RCC_H
+#define __ARCH_ARM_SRC_STM32F7_STM32_RCC_H
 
 /************************************************************************************
  * Included Files
@@ -211,11 +211,7 @@ void stm32_clockenable(void);
  * Name: stm32_rcc_enablelse
  *
  * Description:
- *   Enable the External Low-Speed (LSE) Oscillator and, if the RTC is
- *   configured, setup the LSE as the RTC clock source, and enable the RTC.
- *
- *   For the STM32L15X family, this will also select the LSE as the clock source of
- *   the LCD.
+ *   Enable the External Low-Speed (LSE) Oscillator.
  *
  * Input Parameters:
  *   None
@@ -252,4 +248,4 @@ void stm32_rcc_disablelsi(void);
 }
 #endif
 #endif /* __ASSEMBLY__ */
-#endif /* __ARCH_ARM_SRC_STM32F7_STM32_RRC_H */
+#endif /* __ARCH_ARM_SRC_STM32F7_STM32_RCC_H */
diff --git a/arch/arm/src/stm32l4/stm32l4_rcc.h b/arch/arm/src/stm32l4/stm32l4_rcc.h
index 33549648c23..6c77771ec67 100644
--- a/arch/arm/src/stm32l4/stm32l4_rcc.h
+++ b/arch/arm/src/stm32l4/stm32l4_rcc.h
@@ -33,8 +33,8 @@
  *
  ************************************************************************************/
 
-#ifndef __ARCH_ARM_SRC_STM32L4_STM32L4_RRC_H
-#define __ARCH_ARM_SRC_STM32L4_STM32L4_RRC_H
+#ifndef __ARCH_ARM_SRC_STM32L4_STM32L4_RCC_H
+#define __ARCH_ARM_SRC_STM32L4_STM32L4_RCC_H
 
 /************************************************************************************
  * Included Files
@@ -187,11 +187,7 @@ void stm32l4_clockenable(void);
  * Name: stm32l4_rcc_enablelse
  *
  * Description:
- *   Enable the External Low-Speed (LSE) Oscillator and, if the RTC is
- *   configured, setup the LSE as the RTC clock source, and enable the RTC.
- *
- *   For the STM32L15X family, this will also select the LSE as the clock source of
- *   the LCD.
+ *   Enable the External Low-Speed (LSE) Oscillator.
  *
  * Input Parameters:
  *   None