This series brings various fixes, cleanups and improvements to stm32-usart
driver.

Changes in v2:
- delete DMA cookie variables removal from V1 patch as already done by a
previous patch
- update commit message as DMA cookie variables removal is no more
included in this patch

Erwan Le Ray (8):
  serial: stm32: fix DMA initialization error handling
  serial: stm32: fix code cleaning warnings and checks
  serial: stm32: add "_usart" prefix in functions name
  serial: stm32: add author
  dt-bindings: serial: stm32: update rts-gpios and cts-gpios
  serial: stm32: update conflicting RTS/CTS config comment
  serial: stm32: clean probe and remove port deinit
  serial: stm32: update transmission complete error message in shutdown

 .../bindings/serial/st,stm32-uart.yaml        |  13 +-
 drivers/tty/serial/stm32-usart.c              | 415 +++++++++---------
 2 files changed, 227 insertions(+), 201 deletions(-)

-- 
2.17.1


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