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serial: stm32: clean wakeup handling in serial_suspend 

Remove useless call to stm32_usart_serial_en_wakeup() routine in suspend
callback. When called with "false" argument, this routine is clearing UESM
and WUFIE bits if usart is not wakeup source. Those bits are already
cleared in set_termios(), and then in serial_resume() callback when usart
is wakeup source.

Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20210319184253.5841-3-erwan.leray@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erwan Le Ray 2021-03-19 19:42:50 +01:00 committed by Greg Kroah-Hartman
parent 1631eeeaf0
commit c0f3332cb5
1 changed files with 0 additions and 2 deletions
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2
drivers/tty/serial/stm32-usart.c
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@ -1536,8 +1536,6 @@ static int __maybe_unused stm32_usart_serial_suspend(struct device *dev)
if (device_may_wakeup(dev) || device_wakeup_path(dev))
stm32_usart_serial_en_wakeup(port, true);
else
stm32_usart_serial_en_wakeup(port, false);
/*
* When "no_console_suspend" is enabled, keep the pinctrl default state