From: Thierry Reding <treding@nvidia.com>
Date: Wed, 29 Jan 2014 19:31:17 +0000 (+0100)
Subject: drm/tegra: dc - Add YUYV support
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~44^2~9^2~45
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f925390efccb24016a4fafe77721770021ed754a;p=pandora-kernel.git

drm/tegra: dc - Add YUYV support

YUYV is UYVY with swapped bytes. Luckily the Tegra DC hardware can swap
bytes during scan-out, so supporting YUYV is simply a matter of writing
the correct value to the byteswap register.

This patch modifies tegra_dc_format() to return the byte swap parameter
via an output parameter in addition to returning the pixel format. Many
other formats can potentially be supported in a similar way.

Signed-off-by: Thierry Reding <treding@nvidia.com>
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