From: Andrzej Hajda <a.hajda@samsung.com>
Date: Wed, 15 Mar 2017 15:41:01 +0100
Subject: drm/exynos: simplify completion event handling
Git-commit: 73b7b44fbd93509d3f30c83ca53c79a5534b0d68
Patch-mainline: v4.13-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/exynos/exynos_drm_crtc.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -105,16 +105,15 @@ void exynos_crtc_handle_event(struct exy
struct drm_pending_vblank_event *event = crtc->state->event;
unsigned long flags;
- if (event) {
- crtc->state->event = NULL;
- spin_lock_irqsave(&crtc->dev->event_lock, flags);
- 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);
- }
+ if (!event)
+ return;
+ crtc->state->event = NULL;
+ 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)