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Diffstat (limited to '')
| -rw-r--r-- | drivers/tty/serial/stm32-usart.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 7d1acb3786b8..8602ff357321 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -1424,7 +1424,18 @@ static int __maybe_unused stm32_serial_suspend(struct device *dev) else stm32_serial_enable_wakeup(port, false); - pinctrl_pm_select_sleep_state(dev); + /* + * When "no_console_suspend" is enabled, keep the pinctrl default state + * and rely on bootloader stage to restore this state upon resume. + * Otherwise, apply the idle or sleep states depending on wakeup + * capabilities. + */ + if (console_suspend_enabled || !uart_console(port)) { + if (device_may_wakeup(dev)) + pinctrl_pm_select_idle_state(dev); + else + pinctrl_pm_select_sleep_state(dev); + } return 0; } |