drm/i915: drop redundant vblank waits

Just blows through 50ms for naught, since the pipe is off.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8b1cfc9..5a904dd 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4733,8 +4733,6 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
 
        i9xx_set_pipeconf(intel_crtc);
 
-       intel_wait_for_vblank(dev, pipe);
-
        I915_WRITE(DSPCNTR(plane), dspcntr);
        POSTING_READ(DSPCNTR(plane));
 
@@ -5704,8 +5702,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
 
        ironlake_set_pipeconf(crtc, adjusted_mode, dither);
 
-       intel_wait_for_vblank(dev, pipe);
-
        /* Set up the display plane register */
        I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
        POSTING_READ(DSPCNTR(plane));