Merge branch 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Alex writes:

This is the current set of radeon fixes for 3.6.  Two small fixes:
- fix the fence issues introduced in 3.5 with 64-bit fences
- PLL fix for multiple DP heads

* 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: make 64bit fences more robust v3
  drm/radeon: rework pll selection (v3)