1 files changed, 20 insertions, 15 deletions

diff --git a/arch/ppc64/kernel/pSeries_pci.c b/arch/ppc64/kernel/pSeries_pci.c
index dfa6d3d3e9f0..1f5f141fb7a1 100644
--- a/arch/ppc64/kernel/pSeries_pci.c
+++ b/arch/ppc64/kernel/pSeries_pci.c
@@ -32,7 +32,7 @@
 
 #include "pci.h"
 
-static int __initdata s7a_workaround;
+static int __initdata s7a_workaround = -1;
 
 #if 0
 void pcibios_name_device(struct pci_dev *dev)
@@ -65,6 +65,7 @@ static void __init check_s7a(void)
         struct device_node *root;
         char *model;
 
+        s7a_workaround = 0;
         root = of_find_node_by_path("/");
         if (root) {
                 model = get_property(root, "model", NULL);
@@ -74,6 +75,24 @@ static void __init check_s7a(void)
         }
 }
 
+void __devinit pSeries_irq_bus_setup(struct pci_bus *bus)
+{
+        struct pci_dev *dev;
+
+        if (s7a_workaround < 0)
+                check_s7a();
+        list_for_each_entry(dev, &bus->devices, bus_list) {
+                pci_read_irq_line(dev);
+                if (s7a_workaround) {
+                        if (dev->irq > 16) {
+                                dev->irq -= 3;
+                                pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
+                                        dev->irq);
+                        }
+                }
+        }
+}
+
 static void __init pSeries_request_regions(void)
 {
         if (!isa_io_base)
@@ -89,20 +108,6 @@ static void __init pSeries_request_regions(void)
 
 void __init pSeries_final_fixup(void)
 {
-        struct pci_dev *dev = NULL;
-
-        check_s7a();
-
-        for_each_pci_dev(dev) {
-                pci_read_irq_line(dev);
-                if (s7a_workaround) {
-                        if (dev->irq > 16) {
-                                dev->irq -= 3;
-                                pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
-                        }
-                }
-        }
-
         phbs_remap_io();
         pSeries_request_regions();