drm/i915: remove unexplained vblank wait in the DP off code
I don't think this is necessary; at least it doesn't appear to be on my
BYT. Dropping it speeds up our shutdown code a little, in some cases
resulting in faster init times.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 44df493..a421c81 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2779,9 +2779,6 @@
}
POSTING_READ(intel_dp->output_reg);
- /* We don't really know why we're doing this */
- intel_wait_for_vblank(dev, intel_crtc->pipe);
-
if (HAS_PCH_IBX(dev) &&
I915_READ(intel_dp->output_reg) & DP_PIPEB_SELECT) {
struct drm_crtc *crtc = intel_dig_port->base.base.crtc;