From: Rob Clark Date: Tue, 17 Oct 2017 13:39:39 +0000 (-0400) Subject: drm/msm/mdp4: disable vblanks when crtc is off X-Git-Tag: v4.15-rc1~90^2~17^2~27 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=cae923e6bf2168d1e332977e1de224ee5da1a32c;p=linux.git drm/msm/mdp4: disable vblanks when crtc is off Signed-off-by: Rob Clark --- 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);