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.szyprowski@xxxxxxxxxxx>
---
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 7d62715ab51e..f2eceb6605c5 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1062,32 +1062,6 @@ 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_alloc = exynos_iommu_domain_alloc,
.domain_free = exynos_iommu_domain_free,
@@ -1097,8 +1071,6 @@ static const struct iommu_ops exynos_iommu_ops = {
.unmap = exynos_iommu_unmap,
.map_sg = default_iommu_map_sg,
.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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