Now RPI strongly loses in all respects to s9xxx and rk33xx TV boxes. The only place where the use of RPI is justified, systems that use a variety of external sensors and actuators, of which a large number are produced and there are ready-made systems for their use.
LE did not use patches, but a ready-made closed binary module (driver), which was taken from the finished Android firmware. This binary module was built exclusively for one version of the 3.14 kernel and cannot work with any other versions of the kernel. The manufacturer of the chip does not give anyone the source code from this driver, so no one will spend their time disassembling the binary code and studying it to write a new driver for the kernel 4\5. If you want, you can do the job yourself.