Enter and Exit Low Power Sleep Mode?

Hi,

I have configured MCU in Sleep Mode, I have Configured SPI,UART and Some GPIO. and also configured Interrupt RTC. I have Wrote entering Sleep mode like,

main()

{

 MX_GPIO_Init();

 MX_LPUART1_UART_Init();

 MX_SPI1_Init();

while(1)

{

Disable_Pheripheral(void);

Enter_Sleep_Mode(void);

Enable_Pheripheral(void);

//After wakeup do somthing

}

}

void Disable_Pheripheral(void)

{

CLEAR_BIT(LPUART1->CR1,USART_CR1_RXNEIE);

HAL_UART_MspDeInit(&hlpuart1);

CLEAR_BIT(SPI1->CR1,SPI_CR1_SPE);

HAL_SPI_MspDeInit(&hspi1);

GPIO_InitTypeDef GPIO_InitStructure;

GPIO_InitStructure.Pin = GPIO_PIN_2 |GPIO_PIN_3|GPIO_PIN_5 |GPIO_PIN_6 |GPIO_PIN_7;

GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;

GPIO_InitStructure.Pull = GPIO_NOPULL;

HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Disable GPIOA clock */

__HAL_RCC_GPIOA_CLK_DISABLE();

}

void Enter_Sleep_Mode(void)

{

 __HAL_FLASH_SLEEP_POWERDOWN_ENABLE();

  HAL_SuspendTick();

  /* Enter Sleep Mode , wake up is done once Interrupt Generates */

  HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI);

  /* Resume Tick interrupt if disabled prior to sleep mode entry */

  HAL_ResumeTick();

 __HAL_FLASH_SLEEP_POWERDOWN_DISABLE();

}

void Enable_Pheripheral(void)

{

/* Enable GPIOA clock */

 __HAL_RCC_GPIOA_CLK_ENABLE();

HAL_SPI_MspInit(&hspi1);

SET_BIT(SPI1->CR1,SPI_CR1_SPE);

HAL_UART_MspInit(&hlpuart1);

SET_BIT(LPUART1->CR1,USART_CR1_RXNEIE);

}

This is right way to entering sleep mode?