Messages in this thread | | | Subject | Re: [PATCH 10/11] iommu/exynos: Make use of iommu_device_register interface | From | Marek Szyprowski <> | Date | Fri, 10 Feb 2017 14:46:59 +0100 |
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Hi
On 2017-02-09 12:32, Joerg Roedel wrote: > From: Joerg Roedel <jroedel@suse.de> > > Register Exynos IOMMUs to the IOMMU core and make them > visible in sysfs. This patch does not add the links between > IOMMUs and translated devices yet. > > Cc: Marek Szyprowski <m.szyprowski@samsung.com> > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-samsung-soc@vger.kernel.org > Signed-off-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
> --- > drivers/iommu/exynos-iommu.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c > index 57ba0d3..64325d8 100644 > --- a/drivers/iommu/exynos-iommu.c > +++ b/drivers/iommu/exynos-iommu.c > @@ -276,6 +276,8 @@ struct sysmmu_drvdata { > struct list_head owner_node; /* node for owner controllers list */ > phys_addr_t pgtable; /* assigned page table structure */ > unsigned int version; /* our version */ > + > + struct iommu_device iommu; /* IOMMU core handle */ > }; > > static struct exynos_iommu_domain *to_exynos_domain(struct iommu_domain *dom) > @@ -611,6 +613,18 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev) > data->sysmmu = dev; > spin_lock_init(&data->lock); > > + ret = iommu_device_sysfs_add(&data->iommu, &pdev->dev, NULL, > + dev_name(data->sysmmu)); > + if (ret) > + return ret; > + > + iommu_device_set_ops(&data->iommu, &exynos_iommu_ops); > + iommu_device_set_fwnode(&data->iommu, &dev->of_node->fwnode); > + > + ret = iommu_device_register(&data->iommu); > + if (ret) > + return ret; > + > platform_set_drvdata(pdev, data); > > __sysmmu_get_version(data);
Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland
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