Messages in this thread | | | Date | Sat, 21 Jan 2012 12:51:23 +0000 | From | Mark Brown <> | Subject | Re: [PATCH V1] mfd: tps65910: Add wakeup support |
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On Sat, Jan 21, 2012 at 04:54:52PM +0530, Laxman Dewangan wrote:
> During initialization of device, we need to tell that device is > wakeup capable and hence we need to call the: device_wakeup_init() > and device_set_wakeup_capable(dev, true). > Then it exposes the required sysfs to userspace to select the wakeup > enable or not i.e. power/wakeup to be written as enabled or > disabled. > Based on user selection, the function device_may_wakeup() will > return true/false based on power/wakeup enabled/disabled. So before > entering into the suspend, we need to check this function and call > enable_irq_wakeup() to have the wakeup enabled actually in the soc. > In resume we need to call disable_irq_wake() again.
Yes, that sounds about right. You don't strictly need to worry about the wake setup except when suspending but it tends to be easier to implement that way.
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