drm/msm/mdp5: disable vblanks when crtc is off

Signed-off-by: Rob Clark <robdclark@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index 6fcb58ab718c..436bf628ef9c 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -422,6 +422,9 @@ static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc,
         if (WARN_ON(!mdp5_crtc->enabled))
                 return;
 
+        /* Disable/save vblank irq handling before power is disabled */
+        drm_crtc_vblank_off(crtc);
+
         if (mdp5_cstate->cmd_mode)
                 mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->pp_done);
 
@@ -446,6 +449,9 @@ static void mdp5_crtc_atomic_enable(struct drm_crtc *crtc,
 
         pm_runtime_get_sync(dev);
 
+        /* Restore vblank irq handling after power is enabled */
+        drm_crtc_vblank_on(crtc);
+
         mdp5_crtc_mode_set_nofb(crtc);
 
         mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err);