tree c16dc4a75c6ea2877dcd6be6e1a6ab7393d6dcd0
parent aaa6fd2a004147bf32fce05720938236de3361d9
author Keith Packard <keithp@keithp.com> 1313193954 -0700
committer Keith Packard <keithp@keithp.com> 1313435426 -0700

drm/i915: Can't do accurate vblank timestamps with UMS

Disable this feature when KMS is not running by setting the
driver->get_vblank_timestamp function pointer to NULL.

Signed-off-by: Keith Packard <keithp@keithp.com>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>