How to make working LCD in Raspbian beta 4.0

Banana Pi SBCs design BPI-M2(A31s)
1

I tried Raspbian beta4.0 and rgb interface with Official LCD module BL050-RGB-002 and it doesn’t work.

In Rasbpian 4.0 LCD, it works properly.

I need kernel 4.2 so I’m curious how to make working LCD in Raspbian beta4.0.

Thanks.