From 472db8403aeabe41ea91445e6d918833cfa6fd2e Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 20 Jun 2016 12:20:59 +0200
Subject: [PATCH] drm/sun4i: Send vblank event when the CRTC is disabled
So far, we were missing to send the vblank event when disabling the CRTC,
making us never report the last vblank event.
This was causing a time out on the page flip, which should be solved now.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/gpu/drm/sun4i/sun4i_crtc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c
index 4182a21f5923d..41cacecbea9a8 100644
--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
@@ -65,6 +65,14 @@ static void sun4i_crtc_disable(struct drm_crtc *crtc)
DRM_DEBUG_DRIVER("Disabling the CRTC\n");
sun4i_tcon_disable(drv->tcon);
+
+ if (crtc->state->event && !crtc->state->active) {
+ spin_lock_irq(&crtc->dev->event_lock);
+ drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+
+ crtc->state->event = NULL;
+ }
}
static void sun4i_crtc_enable(struct drm_crtc *crtc)
--
2.39.5