Comment # 78 on bug 76490 from Alex Deucher

(In reply to Maxim Sheviakov from comment #77)

> How do I do it? For the first link:
> Is it enough to copy
> http://cgit.freedesktop.org/~agd5f/linux/tree/drivers/gpu/drm/
> radeon?h=new_smc to 4.3 source tree? Or should I use the git ver of kernel?

Either fetch the git tree and build it directly or apply the top 4 patches to
another kernel.

> 
> Second link: what should I do with it?

Add the files to /lib/firmware/radeon and update your initrd if you are using
one.