For months now Allwinner has been violating the GPL and have attempted to cover it up by obfuscating their code and playing around with their licenses while jerking around the open-source community. At least today they've made a positive change in open-sourcing more of their "CedarX" code...
May 21, 2015
Allwinner Publishes New CedarX Open-Source Code
Read more at Phoronix