[AVR32] extint: Set initial irq type to low level
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>
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index 81a4a02..c36a6d5 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -226,15 +226,15 @@
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);
}
