From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 1 Dec 2008 21:13:58 +0000 (-0800)
Subject: radeonfb: fix problem with color expansion & alignment
X-Git-Tag: v2.6.28-rc7~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c4c6fa9891f3d1bcaae4f39fb751d5302965b566;p=pandora-kernel.git

radeonfb: fix problem with color expansion & alignment

The engine on some radeon variants locks up if color expansion is called
for non aligned source data.  This patch enables a feature of the core
fbdev to request aligned input pixmaps and uses the HW clipping engine to
clip the output to the requested size

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11875

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: James Cloos <cloos@jhcloos.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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