drm/i915: Can't do accurate vblank timestamps with UMS
authorKeith Packard <keithp@keithp.com>
Sat, 13 Aug 2011 00:05:54 +0000 (17:05 -0700)
committerKeith Packard <keithp@keithp.com>
Mon, 15 Aug 2011 19:10:26 +0000 (12:10 -0700)
commitc3613de92ebea302137d21d8938421c3f88d8741
treec16dc4a75c6ea2877dcd6be6e1a6ab7393d6dcd0
parentaaa6fd2a004147bf32fce05720938236de3361d9
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>
drivers/gpu/drm/i915/i915_irq.c