diff --git a/[refs] b/[refs]
index de446f399a9c..dd48d394801a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b3329a33b5a3902e65c5517f41c374f5adb060e1
+refs/heads/master: 077f8ec889bb1eb26a7128fdbc75922755ed2320
diff --git a/trunk/arch/arm/mach-omap2/mailbox.c b/trunk/arch/arm/mach-omap2/mailbox.c
index 0a585dfa9874..24b88504df0f 100644
--- a/trunk/arch/arm/mach-omap2/mailbox.c
+++ b/trunk/arch/arm/mach-omap2/mailbox.c
@@ -193,10 +193,12 @@ static void omap2_mbox_disable_irq(struct omap_mbox *mbox,
 		omap_mbox_type_t irq)
 {
 	struct omap_mbox2_priv *p = mbox->priv;
-	u32 l, bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
-	l = mbox_read_reg(p->irqdisable);
-	l &= ~bit;
-	mbox_write_reg(l, p->irqdisable);
+	u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
+
+	if (!cpu_is_omap44xx())
+		bit = mbox_read_reg(p->irqdisable) & ~bit;
+
+	mbox_write_reg(bit, p->irqdisable);
 }
 
 static void omap2_mbox_ack_irq(struct omap_mbox *mbox,