diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-03-26 19:33:04 -0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-04-02 14:25:34 -0400 |
| commit | 74cfd7ac5e1119ec3275d769ed9e27bcd97cf896 (patch) | |
| tree | ae085468d69dce81d81a5eebe801b8e01f347001 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | 31ad8ec6a6145f9ac978a112801dbde33d44b9d1 (diff) | |
drm/i915: Skip modifying PCH DREF if not changing clock sources
Modifying the clock sources (via the DREF control on the PCH) is a slow
multi-stage process as we need to let the clocks stabilise between each
stage. If we are not actually changing the clock sources, then we can
return early.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Appease checkpatch by deleting a space after a ~]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
0 files changed, 0 insertions, 0 deletions