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drivers: serial: silabs: Don't fail to init if clock is on

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It is not an error if the clock source for the UART is already
enabled. This may happen if a bootloader has used the UART and
not de-initialized it before booting the application.

Signed-off-by: Aksel Skauge Mellbye <aksel.mellbye@silabs.com>
This commit is contained in:
Aksel Skauge Mellbye 2025-06-11 17:53:21 +02:00 • committed by Dan Kalowsky
commit dadd657d89
2 changed files with 2 additions and 2 deletions
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2
drivers/serial/uart_silabs_eusart.c
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@ -1017,7 +1017,7 @@ static int eusart_init(const struct device *dev)
/* The peripheral and gpio clock are already enabled from soc and gpio driver */
/* Enable EUSART clock */
err = clock_control_on(config->clock_dev, (clock_control_subsys_t)&config->clock_cfg);
if (err < 0) {
if (err < 0 && err != -EALREADY) {
return err;
}

2
drivers/serial/uart_silabs_usart.c
View file

@ -1019,7 +1019,7 @@ static int uart_silabs_init(const struct device *dev)
/* The peripheral and gpio clock are already enabled from soc and gpio driver */
/* Enable USART clock */
err = clock_control_on(config->clock_dev, (clock_control_subsys_t)&config->clock_cfg);
if (err < 0) {
if (err < 0 && err != -EALREADY) {
return err;
}