[PATCH v1 0/1] serial: 8250_dw: Allow hardware flow control to be used

[Jason Uy]

This patchset contains changes to allow AUTOCTS to be set for the Synopsys DW UART driver.  There is currently no way to set AUTOCTS unless the platform adds a quirk entry and sets the termios callback function.  

There was a discussion about a similar proposed patch change.  It was mentioned in the discussion that the reason set_termios hook was not set by default is because someone might be using a certain type of clock that can't handle rate rounding and ended up using improper clock frequency for some baud rates.  See discussion thread here.

https://groups.google.com/forum/#!topic/fa.linux.kernel/oWrFOsw3rpQ

The current dw8250_set_termios is set such that it always call the standard serial8250_do_set_termios.  So if there are clock frequency issues, this will be resolved in serial8250_do_set_termios.

This patchset has been tested on Cygnus VOIP board bcm911360_entphn board.

This patchset is based on v4.9-rc1

repo: https://github.com/Broadcom/cygnus-linux.git

branch: cygnus-tty-v1


Jason Uy (1):
  serial: 8250_dw: Allow hardware flow control to be used

 drivers/tty/serial/8250/8250_dw.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

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1.9.1