From: Bob Moore <robert.moore@intel.com>
Date: Mon, 9 Mar 2009 08:32:20 +0000 (+0800)
Subject: ACPICA: Change handling of PM1 Status register ignored bit
X-Git-Tag: v2.6.30-rc1~199^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8636f8d257b3edf5a1529df93119cdc630ed85c7;p=pandora-kernel.git

ACPICA: Change handling of PM1 Status register ignored bit

Ignored bits must be preserved according to the ACPI spec.
Usually this means a read/modify/write when writing to the
register.  However, for status registers, writing a one means
clear the event.  Writing a zero means preserve the event (do not
clear.) This behavior is clarified in the ACPI 4.0 spec, and the
ACPICA code now simply always writes a zero to the ignored bit.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

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