diff options
| author | Eric Anholt <eric@anholt.net> | 2016-07-07 18:53:53 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2016-07-07 18:53:53 -0700 |
| commit | 9f4e62f1520de97c302d65486b146b51c6ffde7c (patch) | |
| tree | 194fac093ff5a1a159b250cad654d8ff8d804cb5 /drivers/gpu/drm/vc4/vc4_kms.c | |
| parent | 027a697677b0d5ff211773596d96f84078ceda80 (diff) | |
| parent | 56d1fe0979dc9b73c1c12ee07722ac380d42a0c4 (diff) | |
Merge tag 'drm-vc4-fixes-2016-06-06' into drm-vc4-next
Merge Mario's get_vblank_counter fix forward to prevent conflicts with
his followon patch to add precise vblank timestamping.
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_kms.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_kms.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index cb37751bc99f..861a623bc185 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -117,10 +117,18 @@ static int vc4_atomic_commit(struct drm_device *dev, return -ENOMEM; /* Make sure that any outstanding modesets have finished. */ - ret = down_interruptible(&vc4->async_modeset); - if (ret) { - kfree(c); - return ret; + if (nonblock) { + ret = down_trylock(&vc4->async_modeset); + if (ret) { + kfree(c); + return -EBUSY; + } + } else { + ret = down_interruptible(&vc4->async_modeset); + if (ret) { + kfree(c); + return ret; + } } ret = drm_atomic_helper_prepare_planes(dev, state); |