intel_post_plane_update did an extra vblank wait that's no longer needed when 
enabling ips.

Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 6bb1f5dbc7a0..19a8d376d63e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4569,9 +4569,6 @@ void hsw_enable_ips(struct intel_crtc *crtc)
        if (!crtc->config->ips_enabled)
                return;
 
-       /* We can only enable IPS after we enable a plane and wait for a vblank 
*/
-       intel_wait_for_vblank(dev, crtc->pipe);
-
        assert_plane_enabled(dev_priv, crtc->plane);
        if (IS_BROADWELL(dev)) {
                mutex_lock(&dev_priv->rps.hw_lock);
-- 
2.1.0

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