U-boot space LCD display not working

Which api do I have to use to set display timmings?
I have exactly the same issue that this and reading differents posts It is clear that is a recurrent issue.
Here said that display support in U-BOOT starting was removed.
In concret wich api is used to set display timings?
Looking in u-boot source I found video.h, It seems that I have to use his one am I correct?