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Date: Fri, 10 Oct 2014 14:31:55 +0200
From: Andrzej Hajda <a.hajda@...sung.com>
To: Inki Dae <inki.dae@...sung.com>
Cc: Andrzej Hajda <a.hajda@...sung.com>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Joonyoung Shim <jy0922.shim@...sung.com>,
Seung-Woo Kim <sw0312.kim@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org (open list),
linux-samsung-soc@...r.kernel.org (moderated list:ARM/S5P EXYNOS AR...)
Subject: [PATCH 3/4] drm/exynos: enable vblank after DPMS on
Before DPMS off driver disables vblank.
It should be balanced by vblank enable after DPMS on.
The patch fixes issue with page_flip ioctl not being able
to acquire vblank counter introduced by patch:
drm: Always reject drm_vblank_get() after drm_vblank_off()
Signed-off-by: Andrzej Hajda <a.hajda@...sung.com>
---
drivers/gpu/drm/exynos/exynos_drm_crtc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 8e38e9f..45026e6 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -71,13 +71,16 @@ static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
!atomic_read(&exynos_crtc->pending_flip),
HZ/20))
atomic_set(&exynos_crtc->pending_flip, 0);
- drm_vblank_off(crtc->dev, exynos_crtc->pipe);
+ drm_crtc_vblank_off(crtc);
}
if (manager->ops->dpms)
manager->ops->dpms(manager, mode);
exynos_crtc->dpms = mode;
+
+ if (mode == DRM_MODE_DPMS_ON)
+ drm_crtc_vblank_on(crtc);
}
static void exynos_drm_crtc_prepare(struct drm_crtc *crtc)
--
1.9.1
--
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