drm/msm: Simplify vblank event delivery

The core takes care of handling the send_event vs. close() issues, we
can remove that driver code.

Cc: Rob Clark <robdclark@gmail.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c

@@ -114,16 +114,10 @@ static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
 	spin_lock_irqsave(&dev->event_lock, flags);
 	event = mdp4_crtc->event;
 	if (event) {
-		/* if regular vblank case (!file) or if cancel-flip from
-		 * preclose on file that requested flip, then send the
-		 * event:
-		 */
-		if (!file || (event->base.file_priv == file)) {
 		mdp4_crtc->event = NULL;
 		DBG("%s: send event: %p", mdp4_crtc->name, event);
 		drm_crtc_send_vblank_event(crtc, event);
 	}
-	}
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 }
 

drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c

@@ -138,16 +138,10 @@ static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
 	spin_lock_irqsave(&dev->event_lock, flags);
 	event = mdp5_crtc->event;
 	if (event) {
-		/* if regular vblank case (!file) or if cancel-flip from
-		 * preclose on file that requested flip, then send the
-		 * event:
-		 */
-		if (!file || (event->base.file_priv == file)) {
 		mdp5_crtc->event = NULL;
 		DBG("%s: send event: %p", crtc->name, event);
 		drm_crtc_send_vblank_event(crtc, event);
 	}
-	}
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
 	if (mdp5_crtc->ctl && !crtc->state->enable) {