diff options
| author | Joerg Roedel <jroedel@suse.de> | 2020-04-29 15:37:09 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-05-05 14:36:14 +0200 |
| commit | 3c51c05479c577ea4235d46366d6181a2d6aff2d (patch) | |
| tree | 7b02bd6f67275d09a433daf8679ad3acd6d85ee7 /drivers/iommu/exynos-iommu.c | |
| parent | 66ae88e71ecb93bafaacaeef233971eacd10e749 (diff) | |
iommu/exynos: Convert to probe/release_device() call-backs
Convert the Exynos IOMMU driver to use the probe_device() and
release_device() call-backs of iommu_ops, so that the iommu core code
does the group and sysfs setup.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200429133712.31431-32-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/exynos-iommu.c')
| -rw-r--r-- | drivers/iommu/exynos-iommu.c | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 09cdd163560a..60c8a56e4a3f 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -1235,19 +1235,13 @@ static phys_addr_t exynos_iommu_iova_to_phys(struct iommu_domain *iommu_domain, return phys; } -static int exynos_iommu_add_device(struct device *dev) +static struct iommu_device *exynos_iommu_probe_device(struct device *dev) { struct exynos_iommu_owner *owner = dev->archdata.iommu; struct sysmmu_drvdata *data; - struct iommu_group *group; if (!has_sysmmu(dev)) - return -ENODEV; - - group = iommu_group_get_for_dev(dev); - - if (IS_ERR(group)) - return PTR_ERR(group); + return ERR_PTR(-ENODEV); list_for_each_entry(data, &owner->controllers, owner_node) { /* @@ -1259,17 +1253,15 @@ static int exynos_iommu_add_device(struct device *dev) DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME); } - iommu_group_put(group); /* There is always at least one entry, see exynos_iommu_of_xlate() */ data = list_first_entry(&owner->controllers, struct sysmmu_drvdata, owner_node); - iommu_device_link(&data->iommu, dev); - return 0; + return &data->iommu; } -static void exynos_iommu_remove_device(struct device *dev) +static void exynos_iommu_release_device(struct device *dev) { struct exynos_iommu_owner *owner = dev->archdata.iommu; struct sysmmu_drvdata *data; @@ -1287,15 +1279,9 @@ static void exynos_iommu_remove_device(struct device *dev) iommu_group_put(group); } } - iommu_group_remove_device(dev); list_for_each_entry(data, &owner->controllers, owner_node) device_link_del(data->link); - - /* There is always at least one entry, see exynos_iommu_of_xlate() */ - data = list_first_entry(&owner->controllers, - struct sysmmu_drvdata, owner_node); - iommu_device_unlink(&data->iommu, dev); } static int exynos_iommu_of_xlate(struct device *dev, @@ -1341,8 +1327,8 @@ static const struct iommu_ops exynos_iommu_ops = { .unmap = exynos_iommu_unmap, .iova_to_phys = exynos_iommu_iova_to_phys, .device_group = generic_device_group, - .add_device = exynos_iommu_add_device, - .remove_device = exynos_iommu_remove_device, + .probe_device = exynos_iommu_probe_device, + .release_device = exynos_iommu_release_device, .pgsize_bitmap = SECT_SIZE | LPAGE_SIZE | SPAGE_SIZE, .of_xlate = exynos_iommu_of_xlate, }; |