drm/sun4i: Implement some semblance of vblank event handling (a33e93db) · Commits · 戴 / test

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

drivers/gpu/drm/sun4i/sun4i_crtc.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -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)

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