[PATCH 00/20] Update STM32 usart driver

[Bich HEMON]

From: Bich Hemon <bich.hemon at st.com>

This patchset updates the stm32 usart driver. It mainly adds
support for fifo, dma, debugfs anf fixes various bugs.

Bich Hemon (20):
  serial: stm32: adding fifo support
  dt-bindings: serial: each stm32 usart needs an alias
  serial: stm32: fix multi ports management
  serial: stm32: make fifoen as property for each port
  serial: stm32: add debugfs
  serial: stm32: fix pio transmit timeout
  serial: stm32: less messages on dma alloc error
  serial: stm32: timeout interrupt using with dma
  serial: stm32: fix end of transfer
  serial: stm32: fix dma receive
  serial: stm32: add RTS support
  serial: stm32: fix last_res value
  serial: stm32: fix error handling in probe
  dt-bindings: serial: document option wake-up interrupt for STM32 USART
  serial: stm32: Add wakeup mechanism
  serial: stm32: fix fifo usage
  dt-bindings: serial: stm32: add dma using note
  serial: stm32: update dma buffers length
  serial: stm32: add dma rx callback
  serial: stm32: fix rx interrupt handling in startup

 .../devicetree/bindings/serial/st,stm32-usart.txt  |  55 +++-
 drivers/tty/serial/stm32-usart.c                   | 310 ++++++++++++++++++---
 drivers/tty/serial/stm32-usart.h                   |  51 +++-
 3 files changed, 375 insertions(+), 41 deletions(-)

-- 
1.9.1