Writing Drivers for a Display

Hi, I'm a novice at Linux kernel components in general, and this is the first time I've tried to write a kernel module.

I am writing a driver for an e-ink display. So far I just have a module which registers a framebuffer and accepts some ioctl commands for update, fast update, partial update, etc. The display draws the frame buffer and this might be enough for what I want to do, but it doesn't seem to work with things like X server or fbterm which I assume is because I haven't implemented some required functions. (These aren't really my end goal, but I'm just trying to learn the system at this stage)

I am now reading up on DRM and FBTFT as a way to make the driver work with like a "real" display but it's pretty overwhelming. Could someone offer a bit of a rundown on what options are out there? Should I use DRM? Are there alternatives? Has FPTFT been in "staging" for 9 years, should I avoid it?

Thanks for any advice you can offer.

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