From: Boris Brezillon <boris.brezillon@bootlin.com>
Date: Tue, 3 Jul 2018 09:50:21 +0200
Subject: drm/vc4: Call drm_atomic_helper_fake_vblank() in the commit path
Git-commit: 1ebe99a75eeda1067c39c1c039ca9bb7e3c9c342
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Mimic what is done in drm_atomic_commit_tail() and call
drm_atomic_helper_fake_vblank() so that VBLANK events are faked
when the drm_crtc_state.no_vblank is true. Will be needed when we'll
add support for the transposer block.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20180703075022.15138-8-boris.brezillon@bootlin.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/vc4/vc4_kms.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -153,6 +153,8 @@ vc4_atomic_complete_commit(struct drm_at
 
 	drm_atomic_helper_commit_modeset_enables(dev, state);
 
+	drm_atomic_helper_fake_vblank(state);
+
 	drm_atomic_helper_commit_hw_done(state);
 
 	drm_atomic_helper_wait_for_flip_done(dev, state);