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drm/exynos: enable vsync interrupt while waiting for vblank 

mixer_wait_for_vblank function expects that the upcoming
vsync interrupt handler routine will clear the
wait_vsync_event atomic variable.

For this to happen, interrupts should be enabled and
disabled properly.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Rahul Sharma 2014-06-23 11:02:25 +05:30 committed by Inki Dae
parent d74ed93784
commit 5d39b9ee8b
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/exynos/exynos_mixer.c
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@ -1019,6 +1019,8 @@ static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr)
}
mutex_unlock(&mixer_ctx->mixer_mutex);
drm_vblank_get(mgr->crtc->dev, mixer_ctx->pipe);
atomic_set(&mixer_ctx->wait_vsync_event, 1);
/*
@ -1029,6 +1031,8 @@ static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr)
!atomic_read(&mixer_ctx->wait_vsync_event),
HZ/20))
DRM_DEBUG_KMS("vblank wait timed out.\n");
drm_vblank_put(mgr->crtc->dev, mixer_ctx->pipe);
}
static void mixer_window_suspend(struct exynos_drm_manager *mgr)