diff --git a/bsp/stm32/stm32mp157a-st-discovery/board/CubeMX_Config/CM4/Src/stm32mp1xx_hal_msp.c b/bsp/stm32/stm32mp157a-st-discovery/board/CubeMX_Config/CM4/Src/stm32mp1xx_hal_msp.c
index f30dac8dcb..be1449028d 100644
--- a/bsp/stm32/stm32mp157a-st-discovery/board/CubeMX_Config/CM4/Src/stm32mp1xx_hal_msp.c
+++ b/bsp/stm32/stm32mp157a-st-discovery/board/CubeMX_Config/CM4/Src/stm32mp1xx_hal_msp.c
@@ -73,6 +73,9 @@ void HAL_MspInit(void)
   /* System interrupt init*/
 
   /* USER CODE BEGIN MspInit 1 */
+    HAL_NVIC_SetPriority(RCC_WAKEUP_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(RCC_WAKEUP_IRQn);
+    __HAL_RCC_ENABLE_IT(RCC_IT_WKUP);
   /* USER CODE END MspInit 1 */
 }
 
diff --git a/bsp/stm32/stm32mp157a-st-discovery/board/ports/drv_pmic.c b/bsp/stm32/stm32mp157a-st-discovery/board/ports/drv_pmic.c
index 67eacab62b..1abc53b59a 100644
--- a/bsp/stm32/stm32mp157a-st-discovery/board/ports/drv_pmic.c
+++ b/bsp/stm32/stm32mp157a-st-discovery/board/ports/drv_pmic.c
@@ -901,10 +901,6 @@ static int pmic_init(void)
         HAL_SYSCFG_VREFBUF_HighImpedanceConfig(SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE);
         HAL_SYSCFG_EnableVREFBUF();
     }
-  
-    __HAL_RCC_VREF_CLK_ENABLE();
-    HAL_SYSCFG_VREFBUF_HighImpedanceConfig(SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE);
-    HAL_SYSCFG_EnableVREFBUF();
 
     LOG_I("stpmic init success!");