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

[Grant Likely]

On Thu, Dec 16, 2010 at 9:47 AM, Timur Tabi <timur at freescale.com> wrote:
> On Fri, Jul 23, 2010 at 9:00 AM, Anatolij Gustschin <agust at denx.de> wrote:
>> Adds support for encoding display mode information
>> in the device tree using verbatim EDID block.
>>
>> If the EDID entry in the DIU node is present, the
>> driver will build mode database using EDID data
>> and allow setting the display modes from this database.
>> Otherwise display mode will be set using mode
>> entries from driver's internal database as usual.
>>
>> This patch also updates device tree bindings.
>>
>> Signed-off-by: Anatolij Gustschin <agust at denx.de>
>> Acked-by: Timur Tabi <timur at freescale.com>
>> Cc: devicetree-discuss at lists.ozlabs.org
>
> Anatolij,
>
> I know this patch is old, but I'm now getting back to working on the
> DIU driver.  One question I have: why are you reading the EDID data
> from the device tree?  Why not just read it directly from the device
> using I2C?  Who is supposed to put the EDID data into the device tree
> in the first place?

This is for devices which don't have an i2c edid channel.

g.