I have my display working but only when I use
$this->bbcode_second_pass_code('', 'dtoverlay=upstream')
It is an adafruit 3.5" spi based display. I am running a Raspberry Pi3 and kernel 5.4.70. I use a dtoverlay of:
$this->bbcode_second_pass_code('', '# PItft 3.5" screen
dtparam=spi=on
dtoverlay=pitft35-resistive,rotate=90,speed=32000000,fps=20')
This used to work without the 'upstream' and now I must put that in to get a console or for X. In reading about this, it is a compatibility for upstream kernels to work with the 'older' overlays. Where can I find info on the 'current' overlays?