From 3689a0ec60bc8f56cc372c1dfa0d89dab48f7c9c Mon Sep 17 00:00:00 2001
From: "George G. Davis" <gdavis@mvista.com>
Date: Wed, 14 Feb 2007 00:33:06 -0800
Subject: [PATCH] [PATCH] serial: make sure UART is powered up when dumping
 MCTRL status

Since serial devices are powered down when not in use and some of those
devices cannot be accessed when powered down, we need to enable power
around calls to get_mcrtl() when dumping port state via uart_line_info().
This resolves hangs observed on some machines while reading serial device
registers when a port is powered off.

Signed-off-by: George G. Davis <gdavis@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
Reading git-format-patch failed