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mfd: Fix off by one in WM831x IRQ code

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The GPIO IRQs aren't the first IRQs defined, we need to subtract the base
for the GPIOs as well to use them for array indexes.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Dimitris Papastamos 2011-06-22 00:23:08 +01:00 committed by Samuel Ortiz
parent 59dead5a0c
commit 08256712a2
1 changed files with 5 additions and 0 deletions
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5
drivers/mfd/wm831x-irq.c
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@ -408,6 +408,11 @@ static int wm831x_irq_set_type(struct irq_data *data, unsigned int type)
return -EINVAL;
}
/* Rebase the IRQ into the GPIO range so we've got a sensible array
* index.
*/
irq -= WM831X_IRQ_GPIO_1;
/* We set the high bit to flag that we need an update; don't
* do the update here as we can be called with the bus lock
* held.