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drivers/serial: stm32f1: Disable remap when not required

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Make sure remap is disabled when not requested.
This should have no impact on current cases but is important
when dynamic pin configuration will be used.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2020-10-05 14:22:28 +02:00 • committed by Kumar Gala
commit c495d4b985
1 changed files with 6 additions and 0 deletions
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6
drivers/serial/uart_stm32.c
View file

@ -698,6 +698,8 @@ static int uart_stm32_init(const struct device *dev)
case DT_REG_ADDR(DT_NODELABEL(usart1)):
if (remap == REMAP_FULL) {
LL_GPIO_AF_EnableRemap_USART1();
} else {
LL_GPIO_AF_DisableRemap_USART1();
}
break;
#endif
@ -705,6 +707,8 @@ static int uart_stm32_init(const struct device *dev)
case DT_REG_ADDR(DT_NODELABEL(usart2)):
if (remap == REMAP_FULL) {
LL_GPIO_AF_EnableRemap_USART2();
} else {
LL_GPIO_AF_DisableRemap_USART2();
}
break;
#endif
@ -714,6 +718,8 @@ static int uart_stm32_init(const struct device *dev)
LL_GPIO_AF_EnableRemap_USART3();
} else if (remap == REMAP_1) {
LL_GPIO_AF_RemapPartial_USART3();
} else {
LL_GPIO_AF_DisableRemap_USART3();
}
break;
#endif