pm runtime and system suspend resume
stern at rowland.harvard.edu
Thu Jun 21 10:27:46 EDT 2012
On Thu, 21 Jun 2012, chao xie wrote:
> I check the code, __device_suspend will invoke dev->pm_domain->ops
> first if dev->pm_domain is not NULL.
> Taking "suspend" as esample, i can do the following things in the
> 1. invoke dev->driver->pm->suspend for suspending the device
> 2. do what we do in dev->pm_domain->ops->runtime_suspend for
> suspending the surrounded logic, for example, shutdown the phy or
> So is above implementation fine?
Yes, that sounds like it will work. Watch out for the case where your
device is already runtime-suspended when a system suspend occurs.
Have you read section 6 in Documentation/power/runtime_pm.txt? It is
related to your question.
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