[PARISC] Define pci_get_legacy_ide_irq

We can compile at least one IDE driver that refers to this.  We can't
use the asm-generic file because we have our own definitions of
pcibios_resource_to_bus etc.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
index 8b631f4..7b8ad11 100644
--- a/include/asm-parisc/pci.h
+++ b/include/asm-parisc/pci.h
@@ -293,4 +293,9 @@
 	/* We don't need to penalize isa irq's */
 }
 
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+	return channel ? 15 : 14;
+}
+
 #endif /* __ASM_PARISC_PCI_H */