serial: imx: add support for loopback mode.
authorHuang Shijie <b32955@freescale.com>
Fri, 29 Nov 2013 09:29:24 +0000 (17:29 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 Dec 2013 01:09:07 +0000 (17:09 -0800)
Add the loopback mode support for imx uart driver.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/imx.c

Simple merge