FWIW, some of the Allwinner stuff has fairly robust support in mainline Linux, and there are ongoing efforts to upstream missing bits: https://linux-sunxi.org/L

FWIW, some of the Allwinner stuff has fairly robust support in mainline Linux, and there are ongoing efforts to upstream missing bits: https://linux-sunxi.org/Linux_mainlining_effort https://linux-sunxi.org/Linux_mainlining_effort No vendor support is probably accurate, though.