1 files changed, 3 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 5bf9a2fdb682..f3fefca58494 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -176,6 +176,9 @@ static void omap2_mbox_ack_irq(struct omap_mbox *mbox,
         u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
 
         mbox_write_reg(bit, p->irqstatus);
+
+        /* Flush posted write for irq status to avoid spurious interrupts */
+        mbox_read_reg(p->irqstatus);
 }
 
 static int omap2_mbox_is_irq(struct omap_mbox *mbox,