From: Rob Clark <rob@xxxxxx>
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@xxxxxx>
---
drivers/staging/omapdrm/omap_crtc.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/omapdrm/omap_crtc.c b/drivers/staging/omapdrm/omap_crtc.c
index 13e3c7f..490a7f1 100644
--- a/drivers/staging/omapdrm/omap_crtc.c
+++ b/drivers/staging/omapdrm/omap_crtc.c
@@ -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,
--
1.7.5.4
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