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-rw-r--r--arch/arm/mach-omap2/mailbox.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 0a585dfa9874..24b88504df0f 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -193,10 +193,12 @@ static void omap2_mbox_disable_irq(struct omap_mbox *mbox,
193 omap_mbox_type_t irq) 193 omap_mbox_type_t irq)
194{ 194{
195 struct omap_mbox2_priv *p = mbox->priv; 195 struct omap_mbox2_priv *p = mbox->priv;
196 u32 l, bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit; 196 u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
197 l = mbox_read_reg(p->irqdisable); 197
198 l &= ~bit; 198 if (!cpu_is_omap44xx())
199 mbox_write_reg(l, p->irqdisable); 199 bit = mbox_read_reg(p->irqdisable) & ~bit;
200
201 mbox_write_reg(bit, p->irqdisable);
200} 202}
201 203
202static void omap2_mbox_ack_irq(struct omap_mbox *mbox, 204static void omap2_mbox_ack_irq(struct omap_mbox *mbox,