- Add support of early console and polling mode in stm32-usart driver.
- Avoid a possible infinite loop in putchar function.

Changes since v2:
- Do not add "stm32" parameter in kernel-parameters.txt 

Changes since v1:
- Fix warning "unused variable 'ret'"

Valentin Caron (3):
  serial: stm32: remove infinite loop possibility in putchar function
  serial: stm32: add KGDB support
  serial: stm32: add earlycon support

 drivers/tty/serial/Kconfig       |   1 +
 drivers/tty/serial/stm32-usart.c | 100 +++++++++++++++++++++++++++++--
 drivers/tty/serial/stm32-usart.h |   2 +
 3 files changed, 98 insertions(+), 5 deletions(-)

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2.25.1