From 9f1591231aa72edd2cdad507520ad4088682262a Mon Sep 17 00:00:00 2001
From: Mikko Perttunen <mperttunen@nvidia.com>
Date: Wed, 28 Aug 2013 18:48:38 +0300
Subject: [PATCH] drm/tegra: hdmi: Detect DVI-only displays

Use EDID data to determine whether the display supports HDMI or DVI
only. The HDMI output used to assume to be connected to HDMI displays,
but that broke support for DVI displays that don't understand the
interspersed audio/other data.

To be on the safe side, default to DVI if no EDID data is available.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
[treding@nvidia.com: move detection to separate function]
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
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