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mfd: arizona: Fix lockdep recursion warning on set_irq_wake 

Avoid a false recursive locking warning from lockdep by adding a lock
class for the arizona IRQ chip.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Charles Keepax 2016-03-25 14:27:09 +00:00 committed by Lee Jones
parent 073d4aca34
commit dedf24a28d
1 changed files with 3 additions and 0 deletions
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3
drivers/mfd/arizona-irq.c
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@ -168,12 +168,15 @@ static struct irq_chip arizona_irq_chip = {
.irq_set_wake = arizona_irq_set_wake,
};
static struct lock_class_key arizona_irq_lock_class;
static int arizona_irq_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
struct arizona *data = h->host_data;
irq_set_chip_data(virq, data);
irq_set_lockdep_class(virq, &arizona_irq_lock_class);
irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_simple_irq);
irq_set_nested_thread(virq, 1);
irq_set_noprobe(virq);