--- /tmp/irq.c	2008-09-16 10:43:30.000000000 +0200
+++ git/arch/arm/mach-omap2/irq.c	2008-09-16 10:46:18.463198000 +0200
@@ -64,6 +64,7 @@
 static void omap_ack_irq(unsigned int irq)
 {
 	intc_bank_write_reg(0x1, &irq_banks[0], INTC_CONTROL);
+	intc_bank_read_reg(&irq_banks[0],INTC_REVISION);
 }
 
 static void omap_mask_irq(unsigned int irq)
@@ -73,6 +74,7 @@
 	irq &= (IRQ_BITS_PER_REG - 1);
 
 	intc_bank_write_reg(1 << irq, &irq_banks[0], INTC_MIR_SET0 + offset);
+	intc_bank_read_reg(&irq_banks[0],INTC_REVISION);
 }
 
 static void omap_unmask_irq(unsigned int irq)