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[AVR32] extint: Set initial irq type to low level

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David Brownell pointed out a mismatch in the avr32 extint code:

> I noticed a small glitch that's not fixed by this patch:  the
> initial type is falling edge, but IRQ_TYPE_NONE is mapped to
> IRQ_TYPE_LEVEL_LOW.  Potentially surprising.

Fix it by setting the initial type (and handler) to low level,
matching the meaning of IRQ_TYPE_NONE.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
This commit is contained in:
Haavard Skinnemoen 2008-01-24 16:56:53 +01:00
parent e4f586f280
commit d6c49a7a78
1 changed files with 3 additions and 3 deletions
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6
arch/avr32/mach-at32ap/extint.c
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@ -226,15 +226,15 @@ static int __init eic_probe(struct platform_device *pdev)
pattern = eic_readl(eic, MODE);
nr_irqs = fls(pattern);
/* Trigger on falling edge unless overridden by driver */
eic_writel(eic, MODE, 0UL);
/* Trigger on low level unless overridden by driver */
eic_writel(eic, EDGE, 0UL);
eic_writel(eic, LEVEL, 0UL);
eic->chip = &eic_chip;
for (i = 0; i < nr_irqs; i++) {
set_irq_chip_and_handler(eic->first_irq + i, &eic_chip,
handle_edge_irq);
handle_level_irq);
set_irq_chip_data(eic->first_irq + i, eic);
}