From 691545fd92551baea6207781b33c95aa6444bf0d Mon Sep 17 00:00:00 2001
From: Peter Hung <hpeter@gmail.com>
Date: Tue, 17 Mar 2015 17:48:23 +0800
Subject: [PATCH] USB: f81232: implement MCR/MSR function

This patch implement relative MCR/MSR function, such like
tiocmget()/tiocmset()/dtr_rts()/carrier_raised()

original f81232_carrier_raised() compared with wrong value UART_DCD.
It's should compared with UART_MSR_DCD.

Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
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