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mfd: Flag WM831x /IRQ as a wake source 

The WM831x can generate wake events, some unconditionally, so flag
the primary IRQ as a wake source in order to help the CPU treat the
/IRQ signal appropriately.

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 2011-01-05 17:56:01 +00:00 committed by Samuel Ortiz
parent c538ddbe4f
commit 180e4f5f20
1 changed files with 11 additions and 0 deletions
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11
drivers/mfd/wm831x-irq.c
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@ -517,6 +517,17 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
return 0;
}
/* Try to flag /IRQ as a wake source; there are a number of
* unconditional wake sources in the PMIC so this isn't
* conditional but we don't actually care *too* much if it
* fails.
*/
ret = enable_irq_wake(irq);
if (ret != 0) {
dev_warn(wm831x->dev, "Can't enable IRQ as wake source: %d\n",
ret);
}
wm831x->irq = irq;
wm831x->irq_base = pdata->irq_base;