[SPARC]: Provide pci_device_to_OF_node() just like powerpc.

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

arch/sparc/kernel/pcic.c

@@ -944,6 +944,14 @@ int pcibios_assign_resource(struct pci_dev *pdev, int resource)
 	return -ENXIO;
 }
 
+struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
+{
+	struct pcidev_cookie *pc = pdev->sysdata;
+
+	return pc->prom_node;
+}
+EXPORT_SYMBOL(pci_device_to_OF_node);
+
 /*
  * This probably belongs here rather than ioport.c because
  * we do not want this crud linked into SBus kernels.

arch/sparc64/kernel/pci.c

@@ -681,4 +681,12 @@ void arch_teardown_msi_irq(unsigned int virt_irq)
 }
 #endif /* !(CONFIG_PCI_MSI) */
 
+struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
+{
+	struct pcidev_cookie *pc = pdev->sysdata;
+
+	return pc->op->node;
+}
+EXPORT_SYMBOL(pci_device_to_OF_node);
+
 #endif /* !(CONFIG_PCI) */

include/asm-sparc/pci.h

@@ -165,6 +165,9 @@ static inline int pci_dma_mapping_error(dma_addr_t dma_addr)
         return (dma_addr == PCI_DMA_ERROR_CODE);
 }
 
+struct device_node;
+extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev);
+
 #endif /* __KERNEL__ */
 
 /* generic pci stuff */

include/asm-sparc64/pci.h

@@ -312,6 +312,9 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 	return PCI_IRQ_NONE;
 }
 
+struct device_node;
+extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev);
+
 #endif /* __KERNEL__ */
 
 #endif /* __SPARC64_PCI_H */