ARM: OMAP: Mask interrupts when disabling interrupts, v2
author김규원 <chammoru@gmail.com>
Thu, 29 Jan 2009 16:57:17 +0000 (08:57 -0800)
committerTony Lindgren <tony@atomide.com>
Thu, 29 Jan 2009 17:27:00 +0000 (09:27 -0800)
By Ingo Molnar, interrupts are not masked by default.
(refer to 76d2160147f43f982dfe881404cfde9fd0a9da21)

But if interrupts are not masked, the processor can wake up while in
Suspend-to-RAM state by an external interrupt. For example, if an
OMAP3 board is connected to Host PC by USB and entered to Suspend-to-RAM
state, it wake up automatically by M_IRQ_92. The disable_irq() function
can't disable the interrupt in H/W level, So I modified
arch/arm/mach-omap2/irq.c

Signed-off-by: Kim Kyuwon <chammoru@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/mach-omap2/irq.c

index 636e282..9ba20d9 100644 (file)
@@ -134,6 +134,7 @@ static struct irq_chip omap_irq_chip = {
        .ack    = omap_mask_ack_irq,
        .mask   = omap_mask_irq,
        .unmask = omap_unmask_irq,
+       .disable = omap_mask_irq,
 };
 
 static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank)