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[AVR32] Set flow handler for external interrupts
Make sure that the flow handler for external interrupts is updated whenever they type is changed. Also make sure that the defaults correspond with how the interrupt controller is configured. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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parent
da58e92f1f
commit
01cb087e74
1 changed files with 20 additions and 2 deletions
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@ -49,12 +49,25 @@ static void eim_unmask_irq(unsigned int irq)
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static int eim_set_irq_type(unsigned int irq, unsigned int flow_type)
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{
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struct at32_sm *sm = get_irq_chip_data(irq);
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struct irq_desc *desc;
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unsigned int i = irq - sm->eim_first_irq;
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u32 mode, edge, level;
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unsigned long flags;
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int ret = 0;
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flow_type &= IRQ_TYPE_SENSE_MASK;
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if (flow_type == IRQ_TYPE_NONE)
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flow_type = IRQ_TYPE_LEVEL_LOW;
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desc = &irq_desc[irq];
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desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
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desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
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if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) {
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desc->status |= IRQ_LEVEL;
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set_irq_handler(irq, handle_level_irq);
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} else {
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set_irq_handler(irq, handle_edge_irq);
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}
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spin_lock_irqsave(&sm->lock, flags);
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@ -148,10 +161,15 @@ static int __init eim_init(void)
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pattern = sm_readl(sm, EIM_MODE);
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nr_irqs = fls(pattern);
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/* Trigger on falling edge unless overridden by driver */
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sm_writel(sm, EIM_MODE, 0UL);
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sm_writel(sm, EIM_EDGE, 0UL);
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sm->eim_chip = &eim_chip;
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for (i = 0; i < nr_irqs; i++) {
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set_irq_chip(sm->eim_first_irq + i, &eim_chip);
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set_irq_chip_and_handler(sm->eim_first_irq + i, &eim_chip,
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handle_edge_irq);
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set_irq_chip_data(sm->eim_first_irq + i, sm);
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}
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