wakeup source - power management

[Ran Shalit]

On Sun, Sep 7, 2014 at 11:36 PM, AYAN KUMAR HALDER <ayankumarh at gmail.com> wrote:
> On Mon, Sep 8, 2014 at 1:50 AM, Ran Shalit <ranshalit at gmail.com> wrote:
>>
>>
>> On Sun, Sep 7, 2014 at 11:14 PM, AYAN KUMAR HALDER <ayankumarh at gmail.com>
>> wrote:
>>> On Sat, Sep 6, 2014 at 9:56 PM, Ran Shalit <ranshalit at gmail.com> wrote:
>>>> Hello
>>>>
>>>> What does it mean device without wakeup source in terms of runtime PM ?
>>>>
>>> Can you give some source/reference where you came across this terminology.
>>> "device without wakeup source"

> If I am not mistaken, it takes about device without wakeup source in
> Suspend to Ram
> which is system power management and not runtime power management.
> In this respect it means, the device cannot wake-up the system from
> suspend state.
> Such devices are completely powered down/clock disabled in suspend state.
> Devices which have wakeup source like RTC are not powered down completely
> so as to generate a wakeup interrupt. This would try to wakeup the system.
>
> Sorry, I am not aware about "device without wakeup source" in terms of
> runtime pm.
>

Hi,

How should a wakeup source for a device be configured in code.
I could not find it documented anywhere.

Thanks very much,
Ran