Fwd: linux video documentation ?

I noticed this email address is listed as the relevant area for the Documentation/devicetree/bindings/video/ directory in the Linux kernel. I have a question about this.

I noticed the Documentation/devicetree/bindings/video/ is no longer in the Linux kernel repo. It was in release 4.3.6 but got dropped in release v4.4-rc1.

Is there a reason for this? I ask because I am using the "simple-framebuffer" and wanted to possibly make some improvements to the documentation.

Thanks for any insight you can provide.

-brad w.