serial: stm32: add KGDB support

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Add support for KGDB in stm32 serial driver by implementing characters
polling callbacks (poll_init, poll_get_char and poll_put_char).

Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Signed-off-by: Jean Philippe Romain <jean-philippe.romain@foss.st.com>
Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Link: https://lore.kernel.org/r/20220419085330.1178925-3-valentin.caron@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Valentin Caron 2022-04-19 10:53:29 +02:00 • committed by Greg Kroah-Hartman

parent 28fb1a92a0

commit 1f507b3aec

1 changed files with 35 additions and 2 deletions

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drivers/tty/serial/stm32-usart.c

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