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| author | Thomas Gleixner <tglx@linutronix.de> | 2013-08-21 14:44:54 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-08-21 14:44:54 +0200 |
| commit | fac778a2b8d6ca953d440baeee72901c2dd5aad9 (patch) | |
| tree | c43d780b5ff8819f4353b16c99601c5ceeeacad7 /drivers/gpu/drm/drm_irq.c | |
| parent | 07862c1cd6675cde2dd4bd64e64d704ea2185b79 (diff) | |
| parent | 94fc5d9de5bd757ad46f0d94bc4ebf617c4487f6 (diff) | |
Merge branch 'linus' into timers/core
Reason: Get upstream changes on which new patches depend on.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 8bcce7866d36..f92da0a32f0d 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -708,7 +708,10 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc, /* Subtract time delta from raw timestamp to get final * vblank_time timestamp for end of vblank. */ - etime = ktime_sub_ns(etime, delta_ns); + if (delta_ns < 0) + etime = ktime_add_ns(etime, -delta_ns); + else + etime = ktime_sub_ns(etime, delta_ns); *vblank_time = ktime_to_timeval(etime); DRM_DEBUG("crtc %d : v %d p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n", |