staging: drm/omap: use current time for page-flip event (7411f9cf) · Commits · 戴 / test

Because we don't have vblank hooked up via drm_irq (which is a bit awkward due to separation between omapdss (which knows the irq #) and omapdrm, for now use gettimeofday to have a semi-sane timestamp in the page-flip event. Otherwise apps like weston drm compositor, which use the timestamp in it's animations, get highly confused. Signed-off-by:

Rob Clark <rob@ti.com> Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/omapdrm/omap_crtc.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -134,9 +134,19 @@ static void vblank_cb(void *arg)

		/* wakeup userspace */
		if (event) {
		do_gettimeofday(&now);

		spin_lock_irqsave(&dev->event_lock, flags);
		/* TODO: we can't yet use the vblank time accounting,
		* because omapdss lower layer is the one that knows
		* the irq # and registers the handler, which more or
		* less defeats how drm_irq works.. for now just fake
		* the sequence number and use gettimeofday..
		*
		event->event.sequence = drm_vblank_count_and_time(
		dev, omap_crtc->id, &now);
		*/
		event->event.sequence = sequence++;
		event->event.tv_sec = now.tv_sec;
		event->event.tv_usec = now.tv_usec;
		list_add_tail(&event->base.link,

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