diff options
Diffstat (limited to 'arch/avr32/mach-at32ap/extint.c')
| -rw-r--r-- | arch/avr32/mach-at32ap/extint.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c index 4dff1f98890..b59272e81b9 100644 --- a/arch/avr32/mach-at32ap/extint.c +++ b/arch/avr32/mach-at32ap/extint.c @@ -49,12 +49,25 @@ static void eim_unmask_irq(unsigned int irq) static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) { struct at32_sm *sm = get_irq_chip_data(irq); + struct irq_desc *desc; unsigned int i = irq - sm->eim_first_irq; u32 mode, edge, level; unsigned long flags; int ret = 0; - flow_type &= IRQ_TYPE_SENSE_MASK; + if (flow_type == IRQ_TYPE_NONE) + flow_type = IRQ_TYPE_LEVEL_LOW; + + desc = &irq_desc[irq]; + desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); + desc->status |= flow_type & IRQ_TYPE_SENSE_MASK; + + if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) { + desc->status |= IRQ_LEVEL; + set_irq_handler(irq, handle_level_irq); + } else { + set_irq_handler(irq, handle_edge_irq); + } spin_lock_irqsave(&sm->lock, flags); @@ -148,10 +161,15 @@ static int __init eim_init(void) pattern = sm_readl(sm, EIM_MODE); nr_irqs = fls(pattern); + /* Trigger on falling edge unless overridden by driver */ + sm_writel(sm, EIM_MODE, 0UL); + sm_writel(sm, EIM_EDGE, 0UL); + sm->eim_chip = &eim_chip; for (i = 0; i < nr_irqs; i++) { - set_irq_chip(sm->eim_first_irq + i, &eim_chip); + set_irq_chip_and_handler(sm->eim_first_irq + i, &eim_chip, + handle_edge_irq); set_irq_chip_data(sm->eim_first_irq + i, sm); } |