[PATCH v4 5/5] fsl-diu-fb: Support setting display mode using EDID

Grant Likely grant.likely at secretlab.ca
Fri Dec 17 04:42:21 EST 2010


On Thu, Dec 16, 2010 at 10:28 AM, Timur Tabi <timur at freescale.com> wrote:
> Grant Likely wrote:
>> No.  It is a static property of the board/machine.  It is expected it
>> to be encoded into the board's .dts file.
>
> Ok, but that only makes sense if the monitor is hard-wired to the board itself.
>  If a user can attach any monitor he wants, then the EDID data can't be known at
> compile time.
>
> I guess it's no different than using hard-coded memory controller programming
> instead of SPD.  You can safely avoid SPD only if the DDR chips are soldered on
> the board.

Correct, if a real EDID i2c channel exists, then an edid property
should *not* be specified in the device tree.

g.


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