Nanopi Duo2 ili9341 at spi1 working, but framebuffer /dev/fb* deprecated, how to proceed with drm?

[schunckt]

Hi all!

 

I may need some pointers.

I'm using a 2.4" LCD at spi1 which works as /dev/fb0  on armbian bookworm (6.1.63)

Meanwhile I've learned frambuffer is deprecated and to be replaced by drm., but ...

- I could not find enough details to understand the drm architecture in general

- there is a linux/drivers/gpu/drm/tiny/ili9341.c  how is that used at all?

- How to use drm in armbian?

 

For my case any acceleration is not necessary (and likely not possible even if the H3 has Mali Hardware) but I want to avoid further changes if /fbX is really gone.

 

btw. I want to add touch with shared SPI soon, work in progress.

Of course that should also work then later on with drm -

I'm thinking of any possible conflicts inside the Device Tree which then may need further tweaking.

It's all nice but sooooooo time consuming...

 

   T.