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staging: drm/omap: use current time for page-flip event 

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>
This commit is contained in:
Rob Clark 2012-03-11 21:11:22 -05:00 committed by Greg Kroah-Hartman
parent 72d0c3363e
commit 7411f9cfe6
1 changed files with 10 additions and 0 deletions
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10
drivers/staging/omapdrm/omap_crtc.c
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@ -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,