From: Hardik Shah <hardik.shah@ti.com>
Date: Fri, 24 Apr 2009 09:59:06 +0000 (+0530)
Subject: DSS2: Added global alpha support.
X-Git-Tag: Release-2010-05/1~2^2~87
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab0b7c375986a579560557b34905771effda0adc;p=pandora-kernel.git

DSS2: Added global alpha support.

global_alpha sysfs entry for video1 plane will always show 255 as
it does not support global_alpha.
Initliazied the global alpha field for all the overlays
to 255 (fully opaque).
Documentation also updated.

Signed-off-by: Hardik Shah <hardik.shah@ti.com>
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