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4 changes: 3 additions & 1 deletion drivers/serial/uart_gecko.c
Original file line number Diff line number Diff line change
Expand Up @@ -492,13 +492,15 @@ static int uart_gecko_init(const struct device *dev)
#ifdef CONFIG_PM_DEVICE
static int uart_gecko_pm_action(const struct device *dev, enum pm_device_action action)
{
const struct uart_gecko_config *config = dev->config;
__maybe_unused const struct uart_gecko_config *config = dev->config;

switch (action) {
case PM_DEVICE_ACTION_SUSPEND:
#ifdef USART_STATUS_TXIDLE
/* Wait for TX FIFO to flush before suspending */
while (!(USART_StatusGet(config->base) & USART_STATUS_TXIDLE)) {
}
#endif
break;

case PM_DEVICE_ACTION_RESUME:
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