From: Peter Lekensteyn <lekensteyn@gmail.com>
Date: Sat, 17 Dec 2011 11:53:43 +0000 (+0100)
Subject: nouveau: properly check for _DSM function support
X-Git-Tag: v3.3-rc1~70^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9075e85f46c598e4dfc852b16b256a32e2fb396f;p=pandora-kernel.git

nouveau: properly check for _DSM function support

According to the ACPI spec version 4, section 9.14.1, _DSM functions
must return a value with the first bit enabled if any DSM functions are
supported for the given UUID and revision ID. For a given function index n
to be marked supported, bit n must be enabled.

Signed-off-by: Peter Lekensteyn <lekensteyn@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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