Re: [PATCH 01/11] OMAP2/3: PM: push core PM code from linux-omap

[Artem Bityutskiy <Artem.Bityutskiy@nokia.com>]

Kevin Hilman wrote:
>> The problem here is that such an interface is extremely fragile.  Consider
>> what happens if a program disables HLT, and then gets killed off for some
>> reason.  How does this reference get balanced again?
>>
>> I think a better solution would be a char device driver which has to be
>> kept open as long as a reference is held.  When userspace closes it (be
>> that because the program has exited, been killed, etc) you can drop any
>> pending references.
> 
> OK, this interface is not intended for users/applications. It is
> intended only for OMAP PM developers who are developing the PM code
> and want to prevent idle for various reasons during development.  It
> is not intended for productions systems.
> 
> What about leaving /sys/power/sleep_while_idle but only if
> CONFIG_PM_DEBUG=y?

Sounds like debugfs is the good place for this then.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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