[PATCH v2 0/3] Handle UART without interrupt on TEMT using em485

[Eric Tremblay <etremblay@distech-controls.com>]

Thanks everyone for the comments. I apply most of the comments on version 1
but there is still a pending point with the Jiri comment about the safety of:
struct tty_struct *tty = p->port.state->port.tty;
I thought about adding a check with tty_port_initialized() before accessing
the pointer, but I saw some other places where that same pointer is accessed
without further protection, at least from what I see. 

Changes from v1 to v2:
- Use UART_CAP_NOTEMT instead of UART_CAP_TEMT
- Use some predefined macro to reduce magicness
- Reset active_timer in temt timer handler
- add uart_get_byte_size
- set UART_CAP_NOTEMT in uart_config for PORT_16550A_FSL64
- Improve commit messages
- Improve grammar and spelling
- Add Giulio and Heiko SoB to reflect previous work

Eric Tremblay (3):
  serial: 8250: Handle UART without interrupt on TEMT using em485
  serial: 8250: Add UART_CAP_NOTEMT on PORT_16550A_FSL64
  serial: 8250: add compatible for fsl,16550-FIFO64

 drivers/tty/serial/8250/8250.h      |  1 +
 drivers/tty/serial/8250/8250_of.c   |  2 +
 drivers/tty/serial/8250/8250_port.c | 68 ++++++++++++++++++++++++++++-
 drivers/tty/serial/serial_core.c    | 29 ++++++++----
 include/linux/serial_8250.h         |  2 +
 include/linux/serial_core.h         |  2 +
 6 files changed, 94 insertions(+), 10 deletions(-)

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2.17.1