https://github.com/notro/fbtft/wiki

# enable spi in raspi-config

pi@jpi1 ~ $ grep spi /boot/config.txt 
dtparam=spi=on


sudo REPO_URI=https://github.com/notro/rpi-firmware rpi-update

sudo reboot

sudo modprobe fbtft_device name=adafruit22a


# test
cd /usr/share/X11/xorg.conf.d/
sudo mv 99-fbturbo.conf ~/
FRAMEBUFFER=/dev/fb1 startx