From 4731fdcf6f7bdab3e369a3f844d4ea4d4017284d Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Fri, 24 Sep 2010 21:02:27 -0400
Subject: [PATCH] intel_idle: PCI quirk to prevent Lenovo Ideapad s10-3 boot
 hang

When the Lenovo Ideapad S10-3 is booted with HT enabled,
it hits a boot hang in the intel_idle driver.

This occurs when entering ATM-C4 for the first time,
unless BM_STS is first cleared.

acpi_idle doesn't see this because it first checks
and clears BM_STS, but it would hit the same hang
if that check were disabled.

http://bugs.meego.com/show_bug.cgi?id=7093
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/634702

Signed-off-by: Len Brown <len.brown@intel.com>
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