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mfd: Acknowledge WM8994 IRQs before reporting 

This ensures we never have a window where we've handled an interrupt but
not told the hardware about it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark Brown 2011-07-21 10:09:24 +01:00 committed by Samuel Ortiz
parent 88c939770d
commit ccd80c7142
1 changed files with 6 additions and 6 deletions
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12
drivers/mfd/wm8994-irq.c
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@ -231,12 +231,6 @@ static irqreturn_t wm8994_irq_thread(int irq, void *data)
status[i] &= ~wm8994->irq_masks_cur[i];
}
/* Report */
for (i = 0; i < ARRAY_SIZE(wm8994_irqs); i++) {
if (status[wm8994_irqs[i].reg - 1] & wm8994_irqs[i].mask)
handle_nested_irq(wm8994->irq_base + i);
}
/* Ack any unmasked IRQs */
for (i = 0; i < ARRAY_SIZE(status); i++) {
if (status[i])
@ -244,6 +238,12 @@ static irqreturn_t wm8994_irq_thread(int irq, void *data)
status[i]);
}
/* Report */
for (i = 0; i < ARRAY_SIZE(wm8994_irqs); i++) {
if (status[wm8994_irqs[i].reg - 1] & wm8994_irqs[i].mask)
handle_nested_irq(wm8994->irq_base + i);
}
return IRQ_HANDLED;
}