Commit
09515ef5ddad ("of/acpi: Configure dma operations at probe time for
platform/amba/pci bus devices") postponed the moment of attaching IOMMU
controller to its device, so there is no need to register IOMMU controllers
very early, before all other devices in the system. This change gives us an
opportunity to use standard platform device registration method also for
Exynos SYSMMU controllers.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
+ /*
+ * use the first registered sysmmu device for performing
+ * dma mapping operations on iommu page tables (cpu cache flush)
+ */
+ if (!dma_dev)
+ dma_dev = &pdev->dev;
+
pm_runtime_enable(dev);
return 0;
pm_runtime_enable(dev);
return 0;
.of_xlate = exynos_iommu_of_xlate,
};
.of_xlate = exynos_iommu_of_xlate,
};
-static bool init_done;
-
static int __init exynos_iommu_init(void)
{
int ret;
static int __init exynos_iommu_init(void)
{
int ret;
return 0;
err_set_iommu:
kmem_cache_free(lv2table_kmem_cache, zero_lv2_table);
return 0;
err_set_iommu:
kmem_cache_free(lv2table_kmem_cache, zero_lv2_table);
kmem_cache_destroy(lv2table_kmem_cache);
return ret;
}
kmem_cache_destroy(lv2table_kmem_cache);
return ret;
}
+core_initcall(exynos_iommu_init);
-static int __init exynos_iommu_of_setup(struct device_node *np)
-{
- struct platform_device *pdev;
-
- if (!init_done)
- exynos_iommu_init();
-
- pdev = of_platform_device_create(np, NULL, platform_bus_type.dev_root);
- if (!pdev)
- return -ENODEV;
-
- /*
- * use the first registered sysmmu device for performing
- * dma mapping operations on iommu page tables (cpu cache flush)
- */
- if (!dma_dev)
- dma_dev = &pdev->dev;
-
- return 0;
-}
-
-IOMMU_OF_DECLARE(exynos_iommu_of, "samsung,exynos-sysmmu",
- exynos_iommu_of_setup);
+IOMMU_OF_DECLARE(exynos_iommu_of, "samsung,exynos-sysmmu", NULL);