ARM: PXA SoCs: irq_data conversion.

Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c
index 0f31305..a2380cd 100644
--- a/arch/arm/mach-pxa/cm-x2xx-pci.c
+++ b/arch/arm/mach-pxa/cm-x2xx-pci.c
@@ -59,7 +59,7 @@
 static void cmx2xx_it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
 	/* clear our parent irq */
-	desc->chip->ack(irq);
+	desc->irq_data.chip->irq_ack(&desc->irq_data);
 
 	it8152_irq_demux(irq, desc);
 }