[PATCH 3/9] drm/exynos: remove using non-consistent DMA attribute

[Joonyoung Shim]

DMA_ATTR_NON_CONSISTENT isn't supported in DMA mapping API of ARM, so
it doesn't give any effects to use non-consistent DMA attribute.

Signed-off-by: Joonyoung Shim <jy0922.shim at samsung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_gem.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c 
b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 17a52f89a690..d5951f75c774 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -41,15 +41,10 @@ static int exynos_drm_alloc_buf(struct exynos_drm_gem 
*exynos_gem)
        if (!(exynos_gem->flags & EXYNOS_BO_NONCONTIG))
                dma_set_attr(DMA_ATTR_FORCE_CONTIGUOUS, &exynos_gem->dma_attrs);

-       /*
-        * if EXYNOS_BO_WC or EXYNOS_BO_NONCACHABLE, writecombine mapping
-        * else cachable mapping.
-        */
+       /* if EXYNOS_BO_WC or EXYNOS_BO_NONCACHABLE, writecombine mapping */
        if (exynos_gem->flags & EXYNOS_BO_WC ||
                        !(exynos_gem->flags & EXYNOS_BO_CACHABLE))
                attr = DMA_ATTR_WRITE_COMBINE;
-       else
-               attr = DMA_ATTR_NON_CONSISTENT;

        dma_set_attr(attr, &exynos_gem->dma_attrs);
        dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &exynos_gem->dma_attrs);
-- 
1.9.1