diff options
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/exynos-combiner.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c index 6855c92c2262..494c2e21b538 100644 --- a/drivers/irqchip/exynos-combiner.c +++ b/drivers/irqchip/exynos-combiner.c @@ -33,7 +33,7 @@ static DEFINE_SPINLOCK(irq_controller_lock); struct combiner_chip_data { - unsigned int irq_offset; + unsigned int hwirq_offset; unsigned int irq_mask; void __iomem *base; unsigned int parent_irq; @@ -80,11 +80,11 @@ static void combiner_handle_cascade_irq(unsigned int irq, struct irq_desc *desc) if (status == 0) goto out; - combiner_irq = __ffs(status); + combiner_irq = chip_data->hwirq_offset + __ffs(status); + cascade_irq = irq_find_mapping(combiner_irq_domain, combiner_irq); - cascade_irq = combiner_irq + (chip_data->irq_offset & ~31); - if (unlikely(cascade_irq >= NR_IRQS)) - do_bad_IRQ(cascade_irq, desc); + if (unlikely(!cascade_irq)) + do_bad_IRQ(irq, desc); else generic_handle_irq(cascade_irq); @@ -129,8 +129,7 @@ static void __init combiner_init_one(struct combiner_chip_data *combiner_data, void __iomem *base, unsigned int irq) { combiner_data->base = base; - combiner_data->irq_offset = irq_find_mapping( - combiner_irq_domain, combiner_nr * IRQ_IN_COMBINER); + combiner_data->hwirq_offset = (combiner_nr & ~3) * IRQ_IN_COMBINER; combiner_data->irq_mask = 0xff << ((combiner_nr % 4) << 3); combiner_data->parent_irq = irq; |