tree 5e5b6ce308c019c9d8e0e3ace7afcae16e6acedc
parent 63295cb2ff4329f563579f3d20c5855a96a866d5
author Baurzhan Ismagulov <ibr@radix50.net> 1289469183 +0100
committer Greg Kroah-Hartman <gregkh@suse.de> 1289504159 -0800

serial: cpm_uat: reducing CPM serial latency

Setting Rx FIFO size to 1 reduces reader process wakeup latency up to
20x for baud rates <= 9600. This patch sets the Rx FIFO size to 1 for
baud rates <= 9600 or if low latency has been requested for the tty.

Signed-off-by: Michael Trimarchi <michael@gandalf.sssup.it>
Signed-off-by: Bruno Morelli <bruno@evidence.eu.com>
Signed-off-by: Baurzhan Ismagulov <ibr@radix50.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>