Connecting to a Raspberry Pi display

I bought a PiTFT touchscreen display some time ago (wasn't originally planning to use it for an Arduino). Link to display. I read on the linked site that it uses SPI for communicating, but I have no idea what chip it is using, so I can't locate the datasheet to find out what data to communicate. Does anyone have any knowledge about this?

Adafruit has the technical documents on their site:

Pieter

The page:-

Has a link to the data sheet of the controller chip, along with links to the schematics of the board.

Thank you!