serial: xilinx_uartps: remove superfluous IDR write
authorSteffen Trumtrar <s.trumtrar@pengutronix.de>
Fri, 22 Mar 2013 17:50:02 +0000 (18:50 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 25 Mar 2013 21:06:45 +0000 (14:06 -0700)
The datesheet clearly states, that writing low bits to the
XUARTPS_IDR register have no effect. Remove the write.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/xilinx_uartps.c

Simple merge