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authorFabien Dessenne <fabien.dessenne@st.com>2016-09-06 09:42:13 +0200
committerVincent Abriou <vincent.abriou@st.com>2016-09-20 11:32:06 +0200
commitae2178503d4237047db4afb5888aa7c8e8b820fb (patch)
treeccfab4cbd243f96d4ba28642bcbe8e28b11c0866 /drivers/gpu/drm/sti/sti_crtc.c
parent5552aad35d439ad96ae55f0e3db25b6268170259 (diff)
drm/sti: use different notifier_block for each pipe
Each pipe shall have its own notifier block to manage the vblank event. This fixes issues where a client registered on given pipe is later abusively notified of events on the other pipe. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Acked-by: Vincent Abriou <vincent.abriou@st.com>
Diffstat (limited to 'drivers/gpu/drm/sti/sti_crtc.c')
-rw-r--r--drivers/gpu/drm/sti/sti_crtc.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/sti/sti_crtc.c b/drivers/gpu/drm/sti/sti_crtc.c
index c7d734dc3cf4..2f41cbe03a38 100644
--- a/drivers/gpu/drm/sti/sti_crtc.c
+++ b/drivers/gpu/drm/sti/sti_crtc.c
@@ -244,8 +244,7 @@ static int sti_crtc_set_property(struct drm_crtc *crtc,
int sti_crtc_vblank_cb(struct notifier_block *nb,
unsigned long event, void *data)
{
- struct sti_compositor *compo =
- container_of(nb, struct sti_compositor, vtg_vblank_nb);
+ struct sti_compositor *compo;
struct drm_crtc *crtc = data;
struct sti_mixer *mixer;
unsigned long flags;
@@ -254,6 +253,7 @@ int sti_crtc_vblank_cb(struct notifier_block *nb,
priv = crtc->dev->dev_private;
pipe = drm_crtc_index(crtc);
+ compo = container_of(nb, struct sti_compositor, vtg_vblank_nb[pipe]);
mixer = compo->mixer[pipe];
if ((event != VTG_TOP_FIELD_EVENT) &&
@@ -295,7 +295,7 @@ int sti_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct sti_private *dev_priv = dev->dev_private;
struct sti_compositor *compo = dev_priv->compo;
- struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb;
+ struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb[pipe];
struct drm_crtc *crtc = &compo->mixer[pipe]->drm_crtc;
DRM_DEBUG_DRIVER("\n");
@@ -314,7 +314,7 @@ void sti_crtc_disable_vblank(struct drm_device *drm_dev, unsigned int pipe)
{
struct sti_private *priv = drm_dev->dev_private;
struct sti_compositor *compo = priv->compo;
- struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb;
+ struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb[pipe];
struct drm_crtc *crtc = &compo->mixer[pipe]->drm_crtc;
DRM_DEBUG_DRIVER("\n");