Fix Reset RTC Domain

Signed-off-by: Frederic.Pillon <frederic.pillon@st.com>

Author: fpistm

cores/arduino/stm32/low_power.c

@@ -64,10 +64,6 @@ void LowPower_init(){
   /* Allow access to Backup domain */
   HAL_PWR_EnableBkUpAccess();
 
-  /* Reset RTC Domain */
-  __HAL_RCC_BACKUPRESET_FORCE();
-  __HAL_RCC_BACKUPRESET_RELEASE();
-
 #ifdef __HAL_RCC_WAKEUPSTOP_CLK_CONFIG
   /* Ensure that HSI is wake-up system clock */
   __HAL_RCC_WAKEUPSTOP_CLK_CONFIG(RCC_STOP_WAKEUPCLOCK_HSI);

cores/arduino/stm32/rtc.c

@@ -322,10 +322,8 @@ void RTC_init(hourFormat_t format, sourceClock_t source)
   HAL_PWR_EnableBkUpAccess();
 #endif
   /* Reset RTC Domain */
-  if(source != LSE_CLOCK) {
-    __HAL_RCC_BACKUPRESET_FORCE();
-    __HAL_RCC_BACKUPRESET_RELEASE();
-  }
+  __HAL_RCC_BACKUPRESET_FORCE();
+  __HAL_RCC_BACKUPRESET_RELEASE();
 
   /* Init RTC clock */
   RTC_initClock(source);