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drivers/serial: stm32: simplify check of TEACK/REACK flags

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Remove reference to SoC series in activation of TEACK/REACK flags
checks. Use flags definitions instead which is defined, if supported,
in STM32Cube packages.
Decouple the checks since REACK is not supported in some series.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2018-06-13 11:32:38 +02:00 • committed by Anas Nashif
commit 80b8c501c9
1 changed files with 10 additions and 5 deletions
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15
drivers/serial/uart_stm32.c
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@ -331,12 +331,17 @@ static int uart_stm32_init(struct device *dev)
LL_USART_Enable(UartInstance);
#if !defined(CONFIG_SOC_SERIES_STM32F4X) && !defined(CONFIG_SOC_SERIES_STM32F1X)
/* Polling USART initialisation */
while ((!(LL_USART_IsActiveFlag_TEACK(UartInstance))) ||
(!(LL_USART_IsActiveFlag_REACK(UartInstance))))
#ifdef USART_ISR_TEACK
/* Wait until TEACK flag is set */
while (!(LL_USART_IsActiveFlag_TEACK(UartInstance)))
;
#endif /* !CONFIG_SOC_SERIES_STM32F4X */
#endif /* !USART_ISR_TEACK */
#ifdef USART_ISR_REACK
/* Wait until TEACK flag is set */
while (!(LL_USART_IsActiveFlag_REACK(UartInstance)))
;
#endif /* !USART_ISR_REACK */
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
config->uconf.irq_config_func(dev);