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Diffstat (limited to 'drivers/iommu/of_iommu.c')
-rw-r--r--drivers/iommu/of_iommu.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index af1dc6a1c0a1..43429ab62228 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -133,19 +133,25 @@ struct iommu_ops *of_iommu_get_ops(struct device_node *np)
return ops;
}
-struct iommu_ops *of_iommu_configure(struct device *dev)
+struct iommu_ops *of_iommu_configure(struct device *dev,
+ struct device_node *master_np)
{
struct of_phandle_args iommu_spec;
struct device_node *np;
struct iommu_ops *ops = NULL;
int idx = 0;
+ if (dev_is_pci(dev)) {
+ dev_err(dev, "IOMMU is currently not supported for PCI\n");
+ return NULL;
+ }
+
/*
* We don't currently walk up the tree looking for a parent IOMMU.
* See the `Notes:' section of
* Documentation/devicetree/bindings/iommu/iommu.txt
*/
- while (!of_parse_phandle_with_args(dev->of_node, "iommus",
+ while (!of_parse_phandle_with_args(master_np, "iommus",
"#iommu-cells", idx,
&iommu_spec)) {
np = iommu_spec.np;