Messages in this thread | | | Date | Fri, 22 Jun 2012 08:48:13 +0800 | Subject | Re: pm runtime and system suspend resume | From | chao xie <> |
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2012/6/21 Alan Stern <stern@rowland.harvard.edu>: > 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. > I will read the document. Thanks very much.
> Alan Stern > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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