1 files changed, 16 insertions, 17 deletions

diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index bea8451fb57b..efc0b5559ee0 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -398,12 +398,8 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
         } else {
                 dev->hdr_type = PCI_HEADER_TYPE_NORMAL;
                 dev->rom_base_reg = PCI_ROM_ADDRESS;
+                /* Maybe do a default OF mapping here */
                 dev->irq = NO_IRQ;
-                if (node->n_intrs > 0) {
-                        dev->irq = node->intrs[0].line;
-                        pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
-                                              dev->irq);
-                }
         }
 
         pci_parse_of_addrs(node, dev);
@@ -1288,23 +1284,26 @@ EXPORT_SYMBOL(pcibios_fixup_bus);
  */
 int pci_read_irq_line(struct pci_dev *pci_dev)
 {
-        u8 intpin;
-        struct device_node *node;
-
-        pci_read_config_byte(pci_dev, PCI_INTERRUPT_PIN, &intpin);
-        if (intpin == 0)
-                return 0;
+        struct of_irq oirq;
+        unsigned int virq;
 
-        node = pci_device_to_OF_node(pci_dev);
-        if (node == NULL)
-                return -1;
+        DBG("Try to map irq for %s...\n", pci_name(pci_dev));
 
-        if (node->n_intrs == 0)
+        if (of_irq_map_pci(pci_dev, &oirq)) {
+                DBG(" -> failed !\n");
                 return -1;
+        }
 
-        pci_dev->irq = node->intrs[0].line;
+        DBG(" -> got one, spec %d cells (0x%08x...) on %s\n",
+            oirq.size, oirq.specifier[0], oirq.controller->full_name);
 
-        pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, pci_dev->irq);
+        virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size);
+        if(virq == NO_IRQ) {
+                DBG(" -> failed to map !\n");
+                return -1;
+        }
+        pci_dev->irq = virq;
+        pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, virq);
 
         return 0;
 }