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drm: rcar-du: Handle event when disabling CRTCs 

The driver currently handles vblank events only when updating planes on
a CRTC. The atomic update API however allows requesting an event when
disabling a CRTC. This currently leads to event objects being leaked in
the kernel and to events not being sent out. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2017-02-10 13:30:35 +02:00
parent 9e7d80e648
commit 6dd47cfd03
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/rcar-du/rcar_du_crtc.c
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@ -488,6 +488,13 @@ static void rcar_du_crtc_disable(struct drm_crtc *crtc)
rcar_du_crtc_stop(rcrtc);
rcar_du_crtc_put(rcrtc);
spin_lock_irq(&crtc->dev->event_lock);
if (crtc->state->event) {
drm_crtc_send_vblank_event(crtc, crtc->state->event);
crtc->state->event = NULL;
}
spin_unlock_irq(&crtc->dev->event_lock);
rcrtc->outputs = 0;
}