Virtual DRM device is used for memory allocation for GEM objects. On
some architectures null dma operations are assigned for virtual devices
if no explicit initialization has been made.

Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c 
b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 68f0f36..a33ea44 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -144,6 +144,7 @@ static int exynos_drm_load(struct drm_device *dev, unsigned 
long flags)
        init_waitqueue_head(&private->wait);
        spin_lock_init(&private->lock);

+       arch_setup_dma_ops(dev->dev, 0, DMA_BIT_MASK(32), false, false);
        dev_set_drvdata(dev->dev, dev);
        dev->dev_private = (void *)private;

-- 
1.9.2

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