From: Daniel Vetter Date: Wed, 8 Jun 2016 12:18:58 +0000 (+0200) Subject: drm/sun4i: Implement some semblance of vblank event handling X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a33e93dba23b7f03297d1eb5ab91feaa88cccd97;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 Cc: Maxime Ripard Reviewed-by: Maarten Lankhorst Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-6-git-send-email-daniel.vetter@ffwll.ch --- 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)