linux-kernel - Re: [PATCH] drm: edid revision 0 is valid

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Message-ID: <20090311025636.GA31718@shareable.org>
Date:	Wed, 11 Mar 2009 02:56:36 +0000
From:	Jamie Lokier <jamie@...reable.org>
To:	Kyle McMartin <kyle@...radead.org>
Cc:	airlied@...hat.com, linux-kernel@...r.kernel.org,
	dri-devel@...ts.sourceforge.net, jbarnes@...tuousgeek.org,
	marko.ristola@...umbus.fi
Subject: Re: [PATCH] drm: edid revision 0 is valid

Kyle McMartin wrote:
> -	if (edid->revision <= 0 || edid->revision > 3) {
> +	if (edid->revision > 3) {
>  		DRM_ERROR("EDID has minor version %d, which is not between 0-3\n", edid->revision);
>  		goto bad;

Ahem.  EDID version 1.4 exists too, in fact it's the current version.
EDID 1.5+ doesn't exist, but it should be backward compatible when it does.

I'm doing a lot of work on another EDID parser, including full DMT and
CEA-861 mode tables, monitor hotplug, all quirks from Xorg and the
kernel, EDID 1.4 support w/ CVT calculation, etc. right now for an
embedded Linux video project.  Would there be any interest
incorporating parts of that work?

-- Jamie
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