Is fbdev deprecated?

Hi,

I've read several comments on this list that indicates that fbdev should 
be avoided for new drivers.
I'm writing drivers for MIPI DBI type 1 compatible controllers with 
onchip RAM.
This onchip memory is scanned out to the panel. So the driver just 
sync's the
framebuffer with the controller memory (partial updates also).
I rely on deferred io to do this. The ssd1307fb is a similar type of driver.

Is this still a use case for fbdev, or is DRM the only way now?

Here's a description of the driver stack: 
https://github.com/notro/fbdbi/wiki


Regards,
Noralf Trønnes