From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Date: Fri, 7 Aug 2009 09:04:26 +0000 (+0300)
Subject: OMAP: Add support for VRFB rotation engine
X-Git-Tag: v2.6.33-rc1~325^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=640f9ca5fd783393c832f6bb5c56368f4d18b820;p=pandora-kernel.git

OMAP: Add support for VRFB rotation engine

VRFB rotation engine is a block in OMAP2/3 that offers 12 independent
contexts that can be used for framebuffer rotation.

Each context has a backend area of real memory, where it stores the
pixels in undisclosed format. This memory is offered to users via 4
virtual memory areas, which see the same memory area in different
rotation angles (0, 90, 180 and 270 degrees).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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