From 3b712e43e3876b42b38321ecf790a1f5fe59c834 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Wed, 3 Oct 2018 16:22:31 -0400 Subject: [PATCH] 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 Signed-off-by: Sean Paul Signed-off-by: Rob Clark --- 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 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); } } -- 2.30.2