sparc: Propagate SBUS iommu archdata into real of_device objects.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 20 insertions, 4 deletions

diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c
index 69491625d869..db0766e5c7d1 100644
--- a/drivers/sbus/sbus.c
+++ b/drivers/sbus/sbus.c
@@ -30,6 +30,24 @@ static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_sbusobppath_attr,
 
 struct sbus_bus *sbus_root;
 
+static void __init fill_sbus_device_iommu(struct sbus_dev *sdev)
+{
+        struct of_device *op = of_find_device_by_node(sdev->ofdev.node);
+        struct dev_archdata *sd, *bus_sd;
+        struct sbus_bus *sbus;
+
+        sbus = sdev->bus;
+        bus_sd = &sbus->ofdev.dev.archdata;
+
+        sd = &sdev->ofdev.dev.archdata;
+        sd->iommu = bus_sd->iommu;
+        sd->stc = bus_sd->stc;
+
+        sd = &op->dev.archdata;
+        sd->iommu = bus_sd->iommu;
+        sd->stc = bus_sd->stc;
+}
+
 static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev)
 {
         struct dev_archdata *sd;
@@ -85,6 +103,8 @@ static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sde
 
         /* WE HAVE BEEN INVADED BY ALIENS! */
         err = sysfs_create_file(&sdev->ofdev.dev.kobj, &dev_attr_obppath.attr);
+
+        fill_sbus_device_iommu(sdev);
 }
 
 static void __init sbus_bus_ranges_init(struct device_node *dp, struct sbus_bus *sbus)
@@ -209,10 +229,6 @@ static void __init walk_children(struct device_node *dp, struct sbus_dev *parent
 
                         sdev->bus = sbus;
                         sdev->parent = parent;
-                        sdev->ofdev.dev.archdata.iommu =
-                                sbus->ofdev.dev.archdata.iommu;
-                        sdev->ofdev.dev.archdata.stc =
-                                sbus->ofdev.dev.archdata.stc;
 
                         fill_sbus_device(dp, sdev);