On Fri, 10 Jun 2011, Russell King - ARM Linux wrote:
[ ... ]
> What's the point when platform code has *ALREADY* to call these functions?
>
> Is it really too sodding difficult for platforms to do:
>
> my_suspend_hook()
> {
> mach_pre_suspend_hook();
> cpu_suspend();
> mach_post_suspend_hook();
> }
>
> ?
>
> <not read the rest of the message, this is getting idiotic>
>
Sorry for being unclear.
Yes, they already have to do all this. And they should.
Except for one thing:
They all, IN ADDITION, do ALSO:
wfi(); /* or whatever else to power down */
For Hibernation, _THAT_ needs to be out of the codepath.
So that one can snapshot without powering down.
FrankH.
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