From: Rob Clark Date: Tue, 17 Oct 2017 09:39:53 -0400 Subject: drm/msm/mdp5: disable vblanks when crtc is off Git-commit: 0033e1b523f6d6a60ff7beaaa923cd7656a72959 Patch-mainline: v4.15-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Signed-off-by: Rob Clark Acked-by: Petr Tesarik --- drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c | 6 ++++++ 1 file changed, 6 insertions(+) --- 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(str 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(stru 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);