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authorSean Paul <seanpaul@chromium.org>2018-10-03 16:22:31 -0400
committerSean Paul <seanpaul@chromium.org>2018-11-30 11:58:03 -0500
commit3b712e43e3876b42b38321ecf790a1f5fe59c834 (patch)
tree63d3520c594efc5451605adee17858b80a4d8438 /drivers
parent8531f0587f5c9e1a74cd9543a97617349f5e0706 (diff)
downloadlinux-3b712e43e3876b42b38321ecf790a1f5fe59c834.tar.bz2
drm/msm: Grab a vblank reference when waiting for commit_done
Similar to the atomic helpers, we should enable vblank while we're waiting for the commit to finish. DPU needs this, MDP5 seems to work fine without it. Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/msm/msm_atomic.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c
index 4bcdeca7479d..2088a20eb270 100644
--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -34,7 +34,12 @@ static void msm_atomic_wait_for_commit_done(struct drm_device *dev,
if (!new_crtc_state->active)
continue;
+ if (drm_crtc_vblank_get(crtc))
+ continue;
+
kms->funcs->wait_for_crtc_commit_done(kms, crtc);
+
+ drm_crtc_vblank_put(crtc);
}
}