[PATCH v7 0/3] tty: Introduce software RS485 direction control support

From: Matwey V. Kornilov
Date: Tue Jan 19 2016 - 15:33:48 EST

Changes from v6:
- minor style changes
- timers are not IRQSAFE now
Changes from v5:
- rs485_emul variable has been renamed to em485 to follow function names convention
Changes from v4:
- Add commit message to 1/3
Changes from v3:
- Completely redesigned.
Changes from v2:
- Introduced SER_RS485_SOFTWARE to show that software implementation is being used
- serial8250_rs485_config is located as required
- Timers are used to implement delay_before and delay_after timeouts

Signed-off-by: Matwey V. Kornilov <matwey@xxxxxxxxxx>