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authorRob Clark <robdclark@gmail.com>2017-10-17 16:39:39 +0300
committerRob Clark <robdclark@gmail.com>2017-10-28 18:01:34 +0300
commitcae923e6bf2168d1e332977e1de224ee5da1a32c (patch)
tree7e426d89c7a613c273dde6f6478ba906d31fc3cc /drivers/gpu/drm/msm
parent63d51e36b5add80bb2d94e67de3d643854faaf10 (diff)
downloadlinux-cae923e6bf2168d1e332977e1de224ee5da1a32c.tar.xz
drm/msm/mdp4: disable vblanks when crtc is off
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm')
-rw-r--r--drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c7
1 files changed, 7 insertions, 0 deletions
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);