[POWERPC] pci_controller->arch_data really is a struct device_node *

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

18 files changed, 31 insertions, 32 deletions

diff --git a/arch/powerpc/kernel/isa-bridge.c b/arch/powerpc/kernel/isa-bridge.c
index 965bfcc9ad2..ee172aa42aa 100644
--- a/arch/powerpc/kernel/isa-bridge.c
+++ b/arch/powerpc/kernel/isa-bridge.c
@@ -145,7 +145,7 @@ void __init isa_bridge_find_early(struct pci_controller *hose)
         for_each_node_by_type(np, "isa") {
                 /* Look for our hose being a parent */
                 for (parent = of_get_parent(np); parent;) {
-                        if (parent == hose->arch_data) {
+                        if (parent == hose->dn) {
                                 of_node_put(parent);
                                 break;
                         }
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 5a9d4c7bfec..2f3f30efffe 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -62,7 +62,7 @@ struct pci_controller *pcibios_alloc_controller(struct device_node *dev)
         phb->global_number = global_phb_number++;
         list_add_tail(&phb->list_node, &hose_list);
         spin_unlock(&hose_spinlock);
-        phb->arch_data = dev;
+        phb->dn = dev;
         phb->is_dynamic = mem_init_done;
 #ifdef CONFIG_PPC64
         if (dev) {
@@ -137,7 +137,7 @@ struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node)
         while(node) {
                 struct pci_controller *hose, *tmp;
                 list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
-                        if (hose->arch_data == node)
+                        if (hose->dn == node)
                                 return hose;
                 node = node->parent;
         }
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 0e2bee46304..096c97e03aa 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -662,8 +662,8 @@ pcibios_make_OF_bus_map(void)
 
         /* For each hose, we begin searching bridges */
         list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
-                struct device_node* node;       
-                node = (struct device_node *)hose->arch_data;
+                struct device_node* node = hose->dn;
+
                 if (!node)
                         continue;
                 make_one_node_map(node, hose->first_busno);
@@ -742,7 +742,7 @@ static struct device_node *scan_OF_for_pci_bus(struct pci_bus *bus)
                 struct pci_controller *hose = pci_bus_to_host(bus);
                 if (hose == NULL)
                         return NULL;
-                return of_node_get(hose->arch_data);
+                return of_node_get(hose->dn);
         }
 
         /* not a root bus, we need to get our parent */
@@ -812,9 +812,9 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
                 return -ENODEV;
         /* Make sure it's really a PCI device */
         hose = pci_find_hose_for_OF_device(node);
-        if (!hose || !hose->arch_data)
+        if (!hose || !hose->dn)
                 return -ENODEV;
-        if (!scan_OF_pci_childs(((struct device_node*)hose->arch_data)->child,
+        if (!scan_OF_pci_childs(hose->dn->child,
                         find_OF_pci_device_filter, (void *)node))
                 return -ENODEV;
         reg = of_get_property(node, "reg", NULL);
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 002cd4cac0f..6b9a8564e73 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -458,7 +458,7 @@ EXPORT_SYMBOL(of_scan_pci_bridge);
 void __devinit scan_phb(struct pci_controller *hose)
 {
         struct pci_bus *bus;
-        struct device_node *node = hose->arch_data;
+        struct device_node *node = hose->dn;
         int i, mode;
         struct resource *res;
 
@@ -705,8 +705,7 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
         if (hose->io_base_alloc == 0)
                 return 0;
 
-        DBG("IO unmapping for PHB %s\n",
-            ((struct device_node *)hose->arch_data)->full_name);
+        DBG("IO unmapping for PHB %s\n", hose->dn->full_name);
         DBG("  alloc=0x%p\n", hose->io_base_alloc);
 
         /* This is a PHB, we fully unmap the IO area */
@@ -765,8 +764,7 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
         hose->io_base_virt = (void __iomem *)(area->addr +
                                               hose->io_base_phys - phys_page);
 
-        DBG("IO mapping for PHB %s\n",
-            ((struct device_node *)hose->arch_data)->full_name);
+        DBG("IO mapping for PHB %s\n", hose->dn->full_name);
         DBG("  phys=0x%016lx, virt=0x%p (alloc=0x%p)\n",
             hose->io_base_phys, hose->io_base_virt, hose->io_base_alloc);
         DBG("  size=0x%016lx (alloc=0x%016lx)\n",
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index b4839038613..85d4d8924b5 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -133,7 +133,7 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
  */
 void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb)
 {
-        struct device_node * dn = (struct device_node *) phb->arch_data;
+        struct device_node *dn = phb->dn;
         struct pci_dn *pdn;
 
         /* PHB nodes themselves must not match */
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index b5c96af955c..6bdfaf3f99e 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -273,7 +273,7 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 #else
                         struct pci_controller *host;
                         host = pci_bus_to_host(pdev->bus);
-                        ppnode = host ? host->arch_data : NULL;
+                        ppnode = host ? host->dn : NULL;
 #endif
                         /* No node for host bridge ? give up */
                         if (ppnode == NULL)
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 21f14e57d1f..3650eb50c27 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -260,7 +260,7 @@ static int phb_set_bus_ranges(struct device_node *dev,
 
 int __devinit rtas_setup_phb(struct pci_controller *phb)
 {
-        struct device_node *dev = phb->arch_data;
+        struct device_node *dev = phb->dn;
 
         if (is_python(dev))
                 python_countermeasures(dev);
diff --git a/arch/powerpc/platforms/82xx/pq2.c b/arch/powerpc/platforms/82xx/pq2.c
index a497cbaa1ac..11d1db8bb09 100644
--- a/arch/powerpc/platforms/82xx/pq2.c
+++ b/arch/powerpc/platforms/82xx/pq2.c
@@ -59,7 +59,7 @@ static void __init pq2_pci_add_bridge(struct device_node *np)
         if (!hose)
                 return;
 
-        hose->arch_data = np;
+        hose->dn = np;
 
         setup_indirect_pci(hose, r.start + 0x100, r.start + 0x104, 0);
         pci_process_bridge_OF_ranges(hose, np, 1);
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 59c121a97ac..bdb3d0b38cd 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -123,7 +123,7 @@ static int mpc85xx_exclude_device(struct pci_controller *hose,
         struct device_node* node;
         struct resource rsrc;
 
-        node = (struct device_node *)hose->arch_data;
+        node = hose->dn;
         of_address_to_resource(node, 0, &rsrc);
 
         if ((rsrc.start & 0xfffff) == primary_phb_addr) {
diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
index 6390895e5e9..c6d2f48f8f3 100644
--- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
+++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
@@ -124,7 +124,7 @@ static void __devinit quirk_uli5229(struct pci_dev *dev)
 static void __devinit final_uli5288(struct pci_dev *dev)
 {
         struct pci_controller *hose = pci_bus_to_host(dev->bus);
-        struct device_node *hosenode = hose ? hose->arch_data : NULL;
+        struct device_node *hosenode = hose ? hose->dn : NULL;
         struct of_irq oirq;
         int virq, pin = 2;
         u32 laddr[3];
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 32a531aebcb..14f4e527e7a 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -116,7 +116,7 @@ static int mpc86xx_exclude_device(struct pci_controller *hose,
         struct device_node* node;       
         struct resource rsrc;
 
-        node = (struct device_node *)hose->arch_data;
+        node = hose->dn;
         of_address_to_resource(node, 0, &rsrc);
 
         if ((rsrc.start & 0xfffff) == 0x8000) {
diff --git a/arch/powerpc/platforms/cell/io-workarounds.c b/arch/powerpc/platforms/cell/io-workarounds.c
index 9d7c2ef940a..b86076e3c09 100644
--- a/arch/powerpc/platforms/cell/io-workarounds.c
+++ b/arch/powerpc/platforms/cell/io-workarounds.c
@@ -238,7 +238,7 @@ static void __init spider_pci_setup_chip(struct spider_pci_bus *bus)
 static void __init spider_pci_add_one(struct pci_controller *phb)
 {
         struct spider_pci_bus *bus = &spider_pci_busses[spider_pci_count];
-        struct device_node *np = phb->arch_data;
+        struct device_node *np = phb->dn;
         struct resource rsrc;
         void __iomem *regs;
 
@@ -317,7 +317,7 @@ static int __init spider_pci_workaround_init(void)
          * update this code to cope with dynamically added busses
          */
         list_for_each_entry(phb, &hose_list, list_node) {
-                struct device_node *np = phb->arch_data;
+                struct device_node *np = phb->dn;
                 const char *model = of_get_property(np, "model", NULL);
 
                 /* If no model property or name isn't exactly "pci", skip */
diff --git a/arch/powerpc/platforms/celleb/io-workarounds.c b/arch/powerpc/platforms/celleb/io-workarounds.c
index 32b9cecfda1..b939c0e98af 100644
--- a/arch/powerpc/platforms/celleb/io-workarounds.c
+++ b/arch/powerpc/platforms/celleb/io-workarounds.c
@@ -222,7 +222,7 @@ void __init celleb_pci_add_one(struct pci_controller *phb,
                                void (*dummy_read)(struct pci_controller *))
 {
         struct celleb_pci_bus *bus = &celleb_pci_busses[celleb_pci_count];
-        struct device_node *np = phb->arch_data;
+        struct device_node *np = phb->dn;
 
         if (celleb_pci_count >= MAX_CELLEB_PCI_BUS) {
                 printk(KERN_ERR "Too many pci bridges, workarounds"
@@ -262,7 +262,7 @@ int __init celleb_pci_workaround_init(void)
         }
 
         list_for_each_entry(phb, &hose_list, list_node) {
-                node = phb->arch_data;
+                node = phb->dn;
                 match = of_match_node(celleb_pci_workaround_match, node);
 
                 if (match) {
diff --git a/arch/powerpc/platforms/celleb/pci.c b/arch/powerpc/platforms/celleb/pci.c
index 13ec4a606b9..5d399e038c2 100644
--- a/arch/powerpc/platforms/celleb/pci.c
+++ b/arch/powerpc/platforms/celleb/pci.c
@@ -480,7 +480,7 @@ static struct of_device_id celleb_phb_match[] __initdata = {
 
 int __init celleb_setup_phb(struct pci_controller *phb)
 {
-        struct device_node *dev = phb->arch_data;
+        struct device_node *dev = phb->dn;
         const struct of_device_id *match;
         int (*setup_func)(struct device_node *, struct pci_controller *);
 
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 771ed0cf29a..3ffa0ac170e 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -558,7 +558,7 @@ void __init maple_pci_init(void)
          * safe assumptions hopefully.
          */
         if (u3_agp) {
-                struct device_node *np = u3_agp->arch_data;
+                struct device_node *np = u3_agp->dn;
                 PCI_DN(np)->busno = 0xf0;
                 for (np = np->child; np; np = np->sibling)
                         PCI_DN(np)->busno = 0xf0;
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index ec49099830d..778c249d881 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -319,7 +319,7 @@ static int u3_ht_skip_device(struct pci_controller *hose,
         if (bus->self)
                 busdn = pci_device_to_OF_node(bus->self);
         else
-                busdn = hose->arch_data;
+                busdn = hose->dn;
         for (dn = busdn->child; dn; dn = dn->sibling)
                 if (PCI_DN(dn) && PCI_DN(dn)->devfn == devfn)
                         break;
@@ -778,7 +778,7 @@ static void __init setup_u4_pcie(struct pci_controller* hose)
 
 static void __init setup_u3_ht(struct pci_controller* hose)
 {
-        struct device_node *np = (struct device_node *)hose->arch_data;
+        struct device_node *np = hose->dn;
         struct pci_controller *other = NULL;
         int i, cur;
 
@@ -1032,7 +1032,7 @@ void __init pmac_pci_init(void)
          * future though
          */
         if (u3_agp) {
-                struct device_node *np = u3_agp->arch_data;
+                struct device_node *np = u3_agp->dn;
                 PCI_DN(np)->busno = 0xf0;
                 for (np = np->child; np; np = np->sibling)
                         PCI_DN(np)->busno = 0xf0;
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index ebb9313b6e9..a65c7630820 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -251,7 +251,7 @@ static void iommu_table_setparms(struct pci_controller *phb,
         const unsigned long *basep;
         const u32 *sizep;
 
-        node = (struct device_node *)phb->arch_data;
+        node = phb->dn;
 
         basep = of_get_property(node, "linux,tce-base", NULL);
         sizep = of_get_property(node, "linux,tce-size", NULL);
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index f67d262d9ec..f139f2a44b1 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -11,6 +11,8 @@
 #include <linux/list.h>
 #include <linux/ioport.h>
 
+struct device_node;
+
 /*
  * Structure of a PCI controller (host bridge)
  */
@@ -20,7 +22,7 @@ struct pci_controller {
 #ifdef CONFIG_PPC64
         int node;
 #endif
-        void *arch_data;
+        struct device_node *dn;
         struct list_head list_node;
         struct device *parent;
 
@@ -132,7 +134,6 @@ extern void __init update_bridge_resource(struct pci_dev *dev,
  * by device_node->data.
  */
 struct iommu_table;
-struct device_node;
 
 struct pci_dn {
         int     busno;                  /* pci bus number */