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drivers: serial: fix console hang when waken up from PM3

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The console can't input when waken up from PM3, as get the wrong
usart_intenset when process PM_DEVICE_ACTION_TURN_ON and the
USART interrupt is not enabled. Only saving usart_intenset after
PM action of PM_DEVICE_ACTION_TURN_OFF can fix this issue.

Signed-off-by: Maochen Wang <maochen.wang@nxp.com>
This commit is contained in:
Maochen Wang 2025-04-11 15:54:11 +08:00 • committed by Benjamin Cabé
commit 90cd350c5a
1 changed files with 1 additions and 2 deletions
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3
drivers/serial/uart_mcux_flexcomm.c
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@ -1123,14 +1123,13 @@ static int mcux_flexcomm_pm_action(const struct device *dev, enum pm_device_acti
const struct mcux_flexcomm_config *config = dev->config;
int ret;
usart_intenset = USART_GetEnabledInterrupts(config->base);
switch (action) {
case PM_DEVICE_ACTION_RESUME:
break;
case PM_DEVICE_ACTION_SUSPEND:
break;
case PM_DEVICE_ACTION_TURN_OFF:
usart_intenset = USART_GetEnabledInterrupts(config->base);
break;
case PM_DEVICE_ACTION_TURN_ON:
ret = mcux_flexcomm_init_common(dev);