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[ARM] Allow SA1100 RTC alarm to be configured for wakeup

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The SA1100 RTC alarm can be configured to wake up the CPU
from sleep mode, and the RTC driver has been using the
API to configure this mode.  Unfortunately, the code was
which sets the required bit in the hardware was missing.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-05-06 11:26:30 +01:00 committed by Russell King
parent 5528e568a7
commit 19ca5d27e1
1 changed files with 16 additions and 0 deletions
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16
arch/arm/mach-sa1100/irq.c
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@ -199,10 +199,26 @@ static void sa1100_unmask_irq(unsigned int irq)
ICMR |= (1 << irq);
}
/*
* Apart form GPIOs, only the RTC alarm can be a wakeup event.
*/
static int sa1100_set_wake(unsigned int irq, unsigned int on)
{
if (irq == IRQ_RTCAlrm) {
if (on)
PWER |= PWER_RTC;
else
PWER &= ~PWER_RTC;
return 0;
}
return -EINVAL;
}
static struct irqchip sa1100_normal_chip = {
.ack = sa1100_mask_irq,
.mask = sa1100_mask_irq,
.unmask = sa1100_unmask_irq,
.set_wake = sa1100_set_wake,
};
static struct resource irq_resource = {