4.4-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit 3b712e43e3876b42b38321ecf790a1f5fe59c834 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/msm_atomic.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c index 7eb253bc24df..221eaea651d4 100644 --- a/drivers/gpu/drm/msm/msm_atomic.c +++ b/drivers/gpu/drm/msm/msm_atomic.c @@ -107,7 +107,12 @@ static void msm_atomic_wait_for_commit_done(struct drm_device *dev, if (old_state->legacy_cursor_update) continue;
+ if (drm_crtc_vblank_get(crtc)) + continue; + kms->funcs->wait_for_crtc_commit_done(kms, crtc); + + drm_crtc_vblank_put(crtc); } }