[PATCH 10/11] iommu/exynos: Make use of iommu_device_register interface
From: m.szyprowski@samsung.com (Marek Szyprowski)
Date: 2017-02-10 13:48:51
Also in:
linux-iommu, linux-samsung-soc, lkml
Hi On 2017-02-09 12:32, Joerg Roedel wrote:
From: Joerg Roedel <redacted> 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 at lists.infradead.org Cc: linux-samsung-soc at vger.kernel.org Signed-off-by: Joerg Roedel <redacted>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
quoted hunk ↗ jump to hunk
--- 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