serial: stm32: select pinctrl state in each suspend/resume function

Select either pinctrl sleep state in suspend function or default state in
resume function.

Signed-off-by: Bich Hemon <bich.hemon@st.com>
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 9c2b04e6f5b6371824c8b35cd77937f0712218b5..04eda75d671cb25ef8c40d8d4d9d130f998fbc61 100644 (file)
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -1298,6 +1298,8 @@ static int stm32_serial_suspend(struct device *dev)
        else
                stm32_serial_enable_wakeup(port, false);
 
+       pinctrl_pm_select_sleep_state(dev);
+
        return 0;
 }
 
@@ -1305,6 +1307,8 @@ static int stm32_serial_resume(struct device *dev)
 {
        struct uart_port *port = dev_get_drvdata(dev);
 
+       pinctrl_pm_select_default_state(dev);
+
        if (device_may_wakeup(dev))
                stm32_serial_enable_wakeup(port, false);