On Wed, Jan 28, 2009 at 10:32:09AM -0800, Tony Lindgren wrote:
> From: 김규원 <[email protected]>
>
> 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 <[email protected]>
> Signed-off-by: Tony Lindgren <[email protected]>
> ---
> arch/arm/mach-omap2/irq.c | 6 ++++++
> 1 files changed, 6 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
> index 636e282..52772f9 100644
> --- a/arch/arm/mach-omap2/irq.c
> +++ b/arch/arm/mach-omap2/irq.c
> @@ -123,6 +123,11 @@ static void omap_unmask_irq(unsigned int irq)
> intc_bank_write_reg(1 << irq, &irq_banks[0], INTC_MIR_CLEAR0 + offset);
> }
>
> +static void omap_disable_irq(unsigned int irq)
> +{
> + omap_mask_irq(irq);
> +}
> +
> static void omap_mask_ack_irq(unsigned int irq)
> {
> omap_mask_irq(irq);
> @@ -134,6 +139,7 @@ static struct irq_chip omap_irq_chip = {
> .ack = omap_mask_ack_irq,
> .mask = omap_mask_irq,
> .unmask = omap_unmask_irq,
> + .disable = omap_disable_irq,
There's no need for the indirection - omap_mask_irq() already has the
required prototype for the .disable function. So this patch should just
be adding:
.disable = omap_mask_irq,
--
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