drm/nouveau: Call drm_vblank_pre/post_modeset() around mode setting.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index 1225ea0a841b..f3570cc45017 100644
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -454,6 +454,7 @@ nv50_crtc_prepare(struct drm_crtc *crtc)
 
         NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
 
+        drm_vblank_pre_modeset(dev, nv_crtc->index);
         nv50_crtc_blank(nv_crtc, true);
 }
 
@@ -469,6 +470,7 @@ nv50_crtc_commit(struct drm_crtc *crtc)
         NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
 
         nv50_crtc_blank(nv_crtc, false);
+        drm_vblank_post_modeset(dev, nv_crtc->index);
 
         ret = RING_SPACE(evo, 2);
         if (ret) {