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drm/exynos: simplify completion event handling 

All Exynos CRTC drivers shouldn't fail at referencing vblank events,
alternate path is actually dead code.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Andrzej Hajda 2017-03-15 15:41:01 +01:00 committed by Inki Dae
parent 9b43c161c8
commit 73b7b44fbd
1 changed files with 8 additions and 9 deletions
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17
drivers/gpu/drm/exynos/exynos_drm_crtc.c
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@ -105,16 +105,15 @@ void exynos_crtc_handle_event(struct exynos_drm_crtc *exynos_crtc)
struct drm_pending_vblank_event *event = crtc->state->event; struct drm_pending_vblank_event *event = crtc->state->event;
unsigned long flags; unsigned long flags;
if (event) { if (!event)
crtc->state->event = NULL; return;
spin_lock_irqsave(&crtc->dev->event_lock, flags); crtc->state->event = NULL;
if (drm_crtc_vblank_get(crtc) == 0)
drm_crtc_arm_vblank_event(crtc, event);
else
drm_crtc_send_vblank_event(crtc, event);
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
}
WARN_ON(drm_crtc_vblank_get(crtc) != 0);
spin_lock_irqsave(&crtc->dev->event_lock, flags);
drm_crtc_arm_vblank_event(crtc, event);
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
} }
static void exynos_drm_crtc_destroy(struct drm_crtc *crtc) static void exynos_drm_crtc_destroy(struct drm_crtc *crtc)