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path: root/drivers/iommu/of_iommu.c
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Diffstat (limited to 'drivers/iommu/of_iommu.c')
-rw-r--r--drivers/iommu/of_iommu.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index e550ccb7634e..89b903406968 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -22,6 +22,9 @@
#include <linux/of.h>
#include <linux/of_iommu.h>
+static const struct of_device_id __iommu_of_table_sentinel
+ __used __section(__iommu_of_table_end);
+
/**
* of_get_dma_window - Parse *dma-window property and returns 0 if found.
*
@@ -89,3 +92,17 @@ int of_get_dma_window(struct device_node *dn, const char *prefix, int index,
return 0;
}
EXPORT_SYMBOL_GPL(of_get_dma_window);
+
+void __init of_iommu_init(void)
+{
+ struct device_node *np;
+ const struct of_device_id *match, *matches = &__iommu_of_table;
+
+ for_each_matching_node_and_match(np, matches, &match) {
+ const of_iommu_init_fn init_fn = match->data;
+
+ if (init_fn(np))
+ pr_err("Failed to initialise IOMMU %s\n",
+ of_node_full_name(np));
+ }
+}