Re: [PATCH 1/4] dt-bindings: display: vga-connector: Allow hardcoding EDID

[Rob Herring <robh@kernel.org>]

On Mon, Jul 06, 2026 at 12:35:39AM +0300, Laurent Pinchart wrote:
> Since DDC version 2, introduced in 1996, VGA monitors have exposed EDID
> data over an I2C bus. The bus is also used to detect the presence of a
> connected monitor by trying to read the EDID data.
> 
> Some devices where the VGA display is integrated in the device and
> always connected do not connect the DDC pins. Some development boards,
> such as the Renesas M3N Salvator-XS, also do not connect the DDC pins.
> 
> To support those, add the ability to provide hardcoded EDID data in the
> device tree. This is mutually exclusive with specifying a DDC bus, and
> can only be done when the VGA display is guaranteed to be always
> connected.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> ---
>  .../bindings/display/connector/vga-connector.yaml | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

There's already 2 (.txt) bindings with the same property, so no issue 
with adding it.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>