lkml.org 
[lkml]   [2012]   [Jun]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: pm runtime and system suspend resume
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
> dev->pm_domain->ops->suspend
> 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
> clocks.
> 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.

Alan Stern



\
 
 \ /
  Last update: 2012-06-21 17:01    [W:0.046 / U:0.380 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site