The driver doesn't need to do anything important in device add/remove
callbacks, because initialization will be done from device-tree specific
callbacks added later. IOMMU groups created by current code were never
used.

Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
 drivers/iommu/exynos-iommu.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index b271348a4ec1..1b3f00726cd4 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1055,32 +1055,6 @@ static phys_addr_t exynos_iommu_iova_to_phys(struct 
iommu_domain *domain,
        return phys;
 }
 
-static int exynos_iommu_add_device(struct device *dev)
-{
-       struct iommu_group *group;
-       int ret;
-
-       group = iommu_group_get(dev);
-
-       if (!group) {
-               group = iommu_group_alloc();
-               if (IS_ERR(group)) {
-                       dev_err(dev, "Failed to allocate IOMMU group\n");
-                       return PTR_ERR(group);
-               }
-       }
-
-       ret = iommu_group_add_device(group, dev);
-       iommu_group_put(group);
-
-       return ret;
-}
-
-static void exynos_iommu_remove_device(struct device *dev)
-{
-       iommu_group_remove_device(dev);
-}
-
 static const struct iommu_ops exynos_iommu_ops = {
        .domain_init = exynos_iommu_domain_init,
        .domain_destroy = exynos_iommu_domain_destroy,
@@ -1089,8 +1063,6 @@ static const struct iommu_ops exynos_iommu_ops = {
        .map = exynos_iommu_map,
        .unmap = exynos_iommu_unmap,
        .iova_to_phys = exynos_iommu_iova_to_phys,
-       .add_device = exynos_iommu_add_device,
-       .remove_device = exynos_iommu_remove_device,
        .pgsize_bitmap = SECT_SIZE | LPAGE_SIZE | SPAGE_SIZE,
 };
 
-- 
1.9.2

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