Re: [PATCH 1/3] video: add support for getting video mode from device

On Sun, Feb 28, 2010 at 1:44 AM, Mitch Bradley [off-list ref] wrote:

Grant Likely Wrote:

quoted

On Sat, Feb 27, 2010 at 2:58 PM, Anatolij Gustschin [off-list ref] wrote:
Also, since you're now in the realm of describing a video display,
which is separate from the display controller, you should consider
describing the display in a separate device tree node.  Maybe
something like this...

video {
       compatible = "fsl,mpc5121-diu";
       display {
               compatible = "<vendor>,<model>";
               edid = [edid-data];
       };
};

As it turns out, I'm doing exactly that - exporting verbatim EDID data as
the value of the "edid" property - for the display node on the Via version
of the OLPC machine.  The kernel driver uses it instead of trying to obtain
the EDID data from the monitor, because the builtin OLPC display cannot
supply EDID data through the usual hardware interfaces.

Cool.  That sounds sane then.  How do you go about generating the EDID
data?  Is there a tool that can do that?  Or did you hand craft it?

Cheers,
g.