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Commit 0eca56f9 authored by Rob Clark's avatar Rob Clark Committed by Dave Airlie
Browse files

drm/imx: use drm_send_vblank_event() helper 



Also, slightly changes the behavior to always put the vblank irq,
even if userspace did not request a vblank event.  As far as I
can tell, the previous code would leak a vblank irq refcnt if
userspace requested a pageflip without event.

Signed-off-by: default avatarRob Clark <rob@ti.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent f7e96d7e

drivers/staging/imx-drm/ipuv3-crtc.c

+2 −19
Original line number Diff line number Diff line
@@ -311,31 +311,14 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc, 


static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)

{

	struct drm_pending_vblank_event *e;

	struct timeval now;

	unsigned long flags;

	struct drm_device *drm = ipu_crtc->base.dev;



	spin_lock_irqsave(&drm->event_lock, flags);



	e = ipu_crtc->page_flip_event;

	if (!e) {

		spin_unlock_irqrestore(&drm->event_lock, flags);

		return;

	}



	do_gettimeofday(&now);

	e->event.sequence = 0;

	e->event.tv_sec = now.tv_sec;

	e->event.tv_usec = now.tv_usec;

	if (ipu_crtc->page_flip_event)

		drm_send_vblank_event(drm, -1, ipu_crtc->page_flip_event);

	ipu_crtc->page_flip_event = NULL;



	imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc);



	list_add_tail(&e->base.link, &e->base.file_priv->event_list);



	wake_up_interruptible(&e->base.file_priv->event_wait);



	spin_unlock_irqrestore(&drm->event_lock, flags);

}