Is sound working in mainline kernel for ARM Allwinner ?

[destroyedlolo]

Hi,

I'm running 2 BananaPI without trouble : I'm very satisfied with this little board which is replacing my basement server (Apache, PHP, PostgreSQL + some home made smart home tools ...)

I've built uboot and the kernel from Lemaker BSP without trouble and installed Gentoo using the classical way (in other words, the same way I've built my x86 or amd64 machines ).

But now, both SunXI and Arch website said the preferred way would be to use latests uBoot and mainline kernel. The only thing stopping me to switch to 4.x is I heard from LeMaker's forum that the sound is not working.
Is it corrected ?

Thanks

Laurent