From cae923e6bf2168d1e332977e1de224ee5da1a32c Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Tue, 17 Oct 2017 09:39:39 -0400 Subject: [PATCH] drm/msm/mdp4: disable vblanks when crtc is off Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c index 47fa2aba1983..14bd3bd3e040 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c @@ -290,6 +290,9 @@ static void mdp4_crtc_atomic_disable(struct drm_crtc *crtc, if (WARN_ON(!mdp4_crtc->enabled)) return; + /* Disable/save vblank irq handling before power is disabled */ + drm_crtc_vblank_off(crtc); + mdp_irq_unregister(&mdp4_kms->base, &mdp4_crtc->err); mdp4_disable(mdp4_kms); @@ -308,6 +311,10 @@ static void mdp4_crtc_atomic_enable(struct drm_crtc *crtc, return; mdp4_enable(mdp4_kms); + + /* Restore vblank irq handling after power is enabled */ + drm_crtc_vblank_on(crtc); + mdp_irq_register(&mdp4_kms->base, &mdp4_crtc->err); crtc_flush(crtc); -- 2.45.2