diff options
| -rw-r--r-- | arch/arm/mach-omap2/mailbox.c | 3 |
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, |