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drivers: serial: stm32: Small code refactoring

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Wakeup-source configuration is about configuring registers.
It belongs to uart_stm32_registers_configure().

Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
This commit is contained in:
Erwan Gouriou 2023-11-28 14:38:54 +01:00 • committed by Fabio Baltieri
commit ad1594ee75
1 changed files with 21 additions and 23 deletions
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44
drivers/serial/uart_stm32.c
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@ -1962,6 +1962,27 @@ static int uart_stm32_registers_configure(const struct device *dev)
} }
#endif #endif
#if defined(CONFIG_PM) && defined(IS_UART_WAKEUP_FROMSTOP_INSTANCE)
if (config->wakeup_source) {
/* Enable ability to wakeup device in Stop mode
* Effect depends on CONFIG_PM_DEVICE status:
* CONFIG_PM_DEVICE=n : Always active
* CONFIG_PM_DEVICE=y : Controlled by pm_device_wakeup_enable()
*/
#ifdef USART_CR3_WUFIE
LL_USART_SetWKUPType(config->usart, LL_USART_WAKEUP_ON_RXNE);
LL_USART_EnableIT_WKUP(config->usart);
LL_USART_ClearFlag_WKUP(config->usart);
#endif
LL_USART_EnableInStopMode(config->usart);
if (config->wakeup_line != STM32_EXTI_LINE_NONE) {
/* Prepare the WAKEUP with the expected EXTI line */
LL_EXTI_EnableIT_0_31(BIT(config->wakeup_line));
}
}
#endif /* CONFIG_PM */
LL_USART_Enable(config->usart); LL_USART_Enable(config->usart);
#ifdef USART_ISR_TEACK #ifdef USART_ISR_TEACK
@ -2016,29 +2037,6 @@ static int uart_stm32_init(const struct device *dev)
config->irq_config_func(dev); config->irq_config_func(dev);
#endif /* CONFIG_PM || CONFIG_UART_INTERRUPT_DRIVEN || CONFIG_UART_ASYNC_API */ #endif /* CONFIG_PM || CONFIG_UART_INTERRUPT_DRIVEN || CONFIG_UART_ASYNC_API */
#if defined(CONFIG_PM) && defined(IS_UART_WAKEUP_FROMSTOP_INSTANCE)
if (config->wakeup_source) {
/* Enable ability to wakeup device in Stop mode
* Effect depends on CONFIG_PM_DEVICE status:
* CONFIG_PM_DEVICE=n : Always active
* CONFIG_PM_DEVICE=y : Controlled by pm_device_wakeup_enable()
*/
#ifdef USART_CR3_WUFIE
LL_USART_Disable(config->usart);
LL_USART_SetWKUPType(config->usart, LL_USART_WAKEUP_ON_RXNE);
LL_USART_EnableIT_WKUP(config->usart);
LL_USART_ClearFlag_WKUP(config->usart);
LL_USART_Enable(config->usart);
#endif
LL_USART_EnableInStopMode(config->usart);
if (config->wakeup_line != STM32_EXTI_LINE_NONE) {
/* Prepare the WAKEUP with the expected EXTI line */
LL_EXTI_EnableIT_0_31(BIT(config->wakeup_line));
}
}
#endif /* CONFIG_PM */
#ifdef CONFIG_UART_ASYNC_API #ifdef CONFIG_UART_ASYNC_API
return uart_stm32_async_init(dev); return uart_stm32_async_init(dev);
#else #else