From: Eric Miao <ycmiao@ycmiao-hp520.(none)>
Date: Wed, 17 Dec 2008 08:50:43 +0000 (+0800)
Subject: [ARM] pxafb: add support for FBIOPAN_DISPLAY by dma braching
X-Git-Tag: v2.6.29-rc1~559^2^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e354846e807e037751fdc8faaee8ad492177113;p=pandora-kernel.git

[ARM] pxafb: add support for FBIOPAN_DISPLAY by dma braching

dma branching is enabled by extending the current setup_frame_dma()
function to allow a 2nd set of frame/palette dma descriptors to be
used.

As a result, pxafb_dma_buff.dma_desc[], pxafb_dma_buff.pal_desc[]
and pxafb_info.fdadr[] are doubled.

This allows maximum re-use of the current dma setup code, although
the pxafb_info.fdadr[xx] for FBRx register values looks a bit odd.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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