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iommu/sun50i: Convert to generic_single_device_group()

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Use the new helper.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/3-v1-c869a95191f2+5e8-iommu_single_grp_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Jason Gunthorpe 2023-08-22 13:15:58 -03:00 committed by Joerg Roedel
parent e8f52d84cf
commit 4f43b6b6d1
1 changed files with 6 additions and 23 deletions
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29
drivers/iommu/sun50i-iommu.c
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@ -107,7 +107,6 @@ struct sun50i_iommu {
struct clk *clk;
struct iommu_domain *domain;
struct iommu_group *group;
struct kmem_cache *pt_pool;
};
@ -815,13 +814,6 @@ static struct iommu_device *sun50i_iommu_probe_device(struct device *dev)
return &iommu->iommu;
}
static struct iommu_group *sun50i_iommu_device_group(struct device *dev)
{
struct sun50i_iommu *iommu = sun50i_iommu_from_dev(dev);
return iommu_group_ref_get(iommu->group);
}
static int sun50i_iommu_of_xlate(struct device *dev,
struct of_phandle_args *args)
{
@ -836,7 +828,7 @@ static int sun50i_iommu_of_xlate(struct device *dev,
static const struct iommu_ops sun50i_iommu_ops = {
.identity_domain = &sun50i_iommu_identity_domain,
.pgsize_bitmap = SZ_4K,
.device_group = sun50i_iommu_device_group,
.device_group = generic_single_device_group,
.domain_alloc_paging = sun50i_iommu_domain_alloc_paging,
.of_xlate = sun50i_iommu_of_xlate,
.probe_device = sun50i_iommu_probe_device,
@ -1004,42 +996,36 @@ static int sun50i_iommu_probe(struct platform_device *pdev)
if (!iommu->pt_pool)
return -ENOMEM;
iommu->group = iommu_group_alloc();
if (IS_ERR(iommu->group)) {
ret = PTR_ERR(iommu->group);
goto err_free_cache;
}
iommu->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(iommu->base)) {
ret = PTR_ERR(iommu->base);
goto err_free_group;
goto err_free_cache;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = irq;
goto err_free_group;
goto err_free_cache;
}
iommu->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(iommu->clk)) {
dev_err(&pdev->dev, "Couldn't get our clock.\n");
ret = PTR_ERR(iommu->clk);
goto err_free_group;
goto err_free_cache;
}
iommu->reset = devm_reset_control_get(&pdev->dev, NULL);
if (IS_ERR(iommu->reset)) {
dev_err(&pdev->dev, "Couldn't get our reset line.\n");
ret = PTR_ERR(iommu->reset);
goto err_free_group;
goto err_free_cache;
}
ret = iommu_device_sysfs_add(&iommu->iommu, &pdev->dev,
NULL, dev_name(&pdev->dev));
if (ret)
goto err_free_group;
goto err_free_cache;
ret = iommu_device_register(&iommu->iommu, &sun50i_iommu_ops, &pdev->dev);
if (ret)
@ -1058,9 +1044,6 @@ err_unregister:
err_remove_sysfs:
iommu_device_sysfs_remove(&iommu->iommu);
err_free_group:
iommu_group_put(iommu->group);
err_free_cache:
kmem_cache_destroy(iommu->pt_pool);