Thanks knaerzche for your effort. I see quite some improvement here.
I still have Rockchip: add H96 Max+ support by easybe · Pull Request #4195 · LibreELEC/LibreELEC.tv · GitHub pending. I will give a shot at upstreaming the DT. However, it would be good if we could test it for a while with LE master first. Is that an option?
I am also willing to work on support for other devices if there are people that would benefit from that.