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Blackfin: bf54x: don't ack GPIO ints when unmasking them

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When unmasking a GPIO interrupt on a BF54x part, the code will implicitly
ack any pending interrupts.  This is not what unmasking should do and can
cause people to miss interrupts from their devices, so punt the code.

Reported-by: Rutger Hofman <rutger@cs.vu.nl>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2010-12-10 20:42:59 +00:00
parent 25f3ff2c44
commit b66acb63f5
1 changed files with 0 additions and 1 deletions
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arch/blackfin/mach-common/ints-priority.c
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@ -866,7 +866,6 @@ static void bfin_gpio_unmask_irq(unsigned int irq)
u32 pintbit = PINT_BIT(pint_val);
u32 bank = PINT_2_BANK(pint_val);
pint[bank]->request = pintbit;
pint[bank]->mask_set = pintbit;
}