Update the powerpc/iseries vio code to use the new generic OF dynamic code.

NOTE: I have no means of testing iseries kernels, this does at least pass the
compile test for me.

Signed-off-by: Nathan Fontenot <nf...@austin.ibm.com>
---

Index: linux-next/arch/powerpc/platforms/iseries/vio.c
===================================================================
--- linux-next.orig/arch/powerpc/platforms/iseries/vio.c        2009-11-02 
13:39:40.000000000 -0600
+++ linux-next/arch/powerpc/platforms/iseries/vio.c     2009-11-03 
12:34:19.000000000 -0600
@@ -80,8 +80,7 @@
        kfree(np);
}

-static struct device_node *new_node(const char *path,
-               struct device_node *parent)
+static struct device_node *new_node(const char *path)
{
        struct device_node *np = kzalloc(sizeof(*np), GFP_KERNEL);

@@ -93,9 +92,6 @@
                return NULL;
        }
        strcpy(np->full_name, path);
-       of_node_set_flag(np, OF_DYNAMIC);
-       kref_init(&np->kref);
-       np->parent = of_node_get(parent);
        return np;
}

@@ -122,7 +118,7 @@

        if (!nprop)
                return 0;
-       prom_add_property(np, nprop);
+       of_property_attach(np, nprop);
        return 1;
}

@@ -133,19 +129,19 @@

        if (!nprop)
                return 0;
-       prom_add_property(np, nprop);
+       of_property_attach(np, nprop);
        return 1;
}

-static struct device_node *do_device_node(struct device_node *parent,
-               const char *name, u32 reg, u32 unit, const char *type,
-               const char *compat, struct vio_resource *res)
+static struct device_node *do_device_node(const char *name, u32 reg,
+               u32 unit, const char *type, const char *compat,
+               struct vio_resource *res)
{
        struct device_node *np;
        char path[32];

        snprintf(path, sizeof(path), "/vdevice/%...@%08x", name, reg);
-       np = new_node(path, parent);
+       np = new_node(path);
        if (!np)
                return NULL;
        if (!add_string_property(np, "name", name) ||
@@ -168,15 +164,6 @@
        np->name = of_get_property(np, "name", NULL);
        np->type = of_get_property(np, "device_type", NULL);
        of_attach_node(np);
-#ifdef CONFIG_PROC_DEVICETREE
-       if (parent->pde) {
-               struct proc_dir_entry *ent;
-
-               ent = proc_mkdir(strrchr(np->full_name, '/') + 1, parent->pde);
-               if (ent)
-                       proc_device_tree_add_node(np, ent);
-       }
-#endif
        return np;

 node_free:
@@ -190,16 +177,11 @@
 */
struct vio_dev *vio_create_viodasd(u32 unit)
{
-       struct device_node *vio_root;
        struct device_node *np;
        struct vio_dev *vdev = NULL;

-       vio_root = of_find_node_by_path("/vdevice");
-       if (!vio_root)
-               return NULL;
-       np = do_device_node(vio_root, "viodasd", FIRST_VIODASD + unit, unit,
+       np = do_device_node("viodasd", FIRST_VIODASD + unit, unit,
                        "block", "IBM,iSeries-viodasd", NULL);
-       of_node_put(vio_root);
        if (np) {
                vdev = vio_register_device_node(np);
                if (!vdev)
@@ -254,7 +236,7 @@
        }
}

-static void __init probe_disk(struct device_node *vio_root, u32 unit)
+static void __init probe_disk(u32 unit)
{
        HvLpEvent_Rc hvrc;
        struct vio_waitevent we;
@@ -305,11 +287,11 @@
                return;
        }

-       do_device_node(vio_root, "viodasd", FIRST_VIODASD + unit, unit,
+       do_device_node("viodasd", FIRST_VIODASD + unit, unit,
                        "block", "IBM,iSeries-viodasd", NULL);
}

-static void __init get_viodasd_info(struct device_node *vio_root)
+static void __init get_viodasd_info(void)
{
        int rc;
        u32 unit;
@@ -326,7 +308,7 @@
        vio_setHandler(viomajorsubtype_blockio, handle_block_event);

        for (unit = 0; unit < HVMAXARCHITECTEDVIRTUALDISKS; unit++)
-               probe_disk(vio_root, unit);
+               probe_disk(unit);

        vio_clearHandler(viomajorsubtype_blockio);
        viopath_close(viopath_hostLp, viomajorsubtype_blockio, 2);
@@ -372,7 +354,7 @@
        }
}

-static void __init get_viocd_info(struct device_node *vio_root)
+static void __init get_viocd_info(void)
{
        HvLpEvent_Rc hvrc;
        u32 unit;
@@ -430,7 +412,7 @@

        for (unit = 0; (unit < HVMAXARCHITECTEDVIRTUALCDROMS) &&
                        unitinfo[unit].rsrcname[0]; unit++) {
-               if (!do_device_node(vio_root, "viocd", FIRST_VIOCD + unit, unit,
+               if (!do_device_node("viocd", FIRST_VIOCD + unit, unit,
                                "block", "IBM,iSeries-viocd", &unitinfo[unit]))
                        break;
        }
@@ -464,7 +446,7 @@
        }
}

-static void __init get_viotape_info(struct device_node *vio_root)
+static void __init get_viotape_info(void)
{
        HvLpEvent_Rc hvrc;
        u32 unit;
@@ -507,7 +489,7 @@

        for (unit = 0; (unit < HVMAXARCHITECTEDVIRTUALTAPES) &&
                        unitinfo[unit].rsrcname[0]; unit++) {
-               if (!do_device_node(vio_root, "viotape", FIRST_VIOTAPE + unit,
+               if (!do_device_node("viotape", FIRST_VIOTAPE + unit,
                                unit, "byte", "IBM,iSeries-viotape",
                                &unitinfo[unit]))
                        break;
@@ -522,7 +504,6 @@

static int __init iseries_vio_init(void)
{
-       struct device_node *vio_root;
        int ret = -ENODEV;

        if (!firmware_has_feature(FW_FEATURE_ISERIES))
@@ -530,25 +511,19 @@

        iommu_vio_init();

-       vio_root = of_find_node_by_path("/vdevice");
-       if (!vio_root)
-               goto out;
-
        if (viopath_hostLp == HvLpIndexInvalid) {
                vio_set_hostlp();
                /* If we don't have a host, bail out */
                if (viopath_hostLp == HvLpIndexInvalid)
-                       goto put_node;
+                       goto out;
        }

-       get_viodasd_info(vio_root);
-       get_viocd_info(vio_root);
-       get_viotape_info(vio_root);
+       get_viodasd_info();
+       get_viocd_info();
+       get_viotape_info();

        ret = 0;

- put_node:
-       of_node_put(vio_root);
 out:
        return ret;
}
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