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authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-06-08 15:18:58 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-06-10 17:55:48 +0300
commita33e93dba23b7f03297d1eb5ab91feaa88cccd97 (patch)
tree547b304a684bac08218b466b8dce2094fa550433 /drivers/gpu/drm
parent84d9a4a28801fddb88dc61487089ed0ae2ccef78 (diff)
downloadlinux-a33e93dba23b7f03297d1eb5ab91feaa88cccd97.tar.xz
drm/sun4i: Implement some semblance of vblank event handling
atomic_flush seems to be the right place, right after we commit the plane updates. Again use the fullproof version, since the pipe might be off. Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-6-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_crtc.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c
index 4182a21f5923..f628b6d8f23f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
@@ -51,10 +51,22 @@ static void sun4i_crtc_atomic_flush(struct drm_crtc *crtc,
{
struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
struct sun4i_drv *drv = scrtc->drv;
+ struct drm_pending_vblank_event *event = crtc->state->event;
DRM_DEBUG_DRIVER("Committing plane changes\n");
sun4i_backend_commit(drv->backend);
+
+ if (event) {
+ crtc->state->event = NULL;
+
+ spin_lock_irq(&crtc->dev->event_lock);
+ if (drm_crtc_vblank_get(crtc) == 0)
+ drm_crtc_arm_vblank_event(crtc, event);
+ else
+ drm_crtc_send_vblank_event(crtc, event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+ }
}
static void sun4i_crtc_disable(struct drm_crtc *crtc)