Raspberry Pi's firmware base touch screen support

modulename: raspberrypi-ts.ko

configname: CONFIG_TOUCHSCREEN_RASPBERRYPI_FW

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Touchscreens
└─>Raspberry Pi's firmware base touch screen support
In linux kernel since version 5 (release Date: 2019-03-03)  
Say Y here if you have the official Raspberry Pi 7 inch screen on
your system.

If unsure, say N.

To compile this driver as a module, choose M here: the
module will be called raspberrypi-ts.

source code:

depends
CONFIG_INPUT
CONFIG_INPUT_TOUCHSCREEN
NOT CONFIG_UML
CONFIG_RASPBERRYPI_FIRMWARE or CONFIG_COMPILE_TEST
CONFIG_RASPBERRYPI_FIRMWARE