[PATCH] drm/radeon: disable dpm on rv770 by default

[Andy Furniss]

Alex Deucher wrote:

> I ran into similar issues right after dpm support was released.  I'd
> done most of my development on gcc 4.6 and everything worked fine
> and upon upgrading to 4.7 or 4.8, tons of stuff broke.  It ended up
> at least partially being related to indexing variable sized arrays:
> 48fa04c3fcdb4f6ac041976bedaf19ca5bee20c0
> f90555cbe629e14c6af1dcec1933a3833ecd321f
> 607f2c2791ec81e5abca6213ff037e9405378be1
> a7ee824a6255e347ea76e2f00827e81bbe01004e plus some others, but there
> may still be problematic cases.

Ahh, thanks for that, at least I know now there's no point in me
building a whole new LFS.