From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 9 Nov 2011 04:35:05 +0000 (-0800)
Subject: fbdev: sh_mipi_dsi: add VMLEN1/VMLEN2 calculation
X-Git-Tag: v3.3-rc1~59^2~52
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08750617badd03fd95f33921a5213a5632022178;p=pandora-kernel.git

fbdev: sh_mipi_dsi: add VMLEN1/VMLEN2 calculation

VMLEN1/VMLEN2 needs blanking length which is calculated from
video image size.

The calculation methods are explained on
[SH MIPI] - [Video Mode] - [Blanking Packet setting]
But HFPLEN (= VMLEN2) is un-understandable.

For example, if SH-MIPI input was RGB888 (3byte),
output was RGB888 (3byte)
and 3lane connection, the date goes straight.

But if SH-MIPI input was RGB888 (3byte),
output was RGB565 (2byte)
and 4lane connection, it needs delay in HFPLEN.
Then (input cycle - output cycle) * lane is necessary the delay

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
---

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