linux-kernel - Re: [patch update] Re: [linux-pm] Run-time PM idea (was: Re: [RFC][PATCH 0/2] PM: Rearrange core suspend code)

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Message-Id: <200906101620.26559.oliver@neukum.org>
Date:	Wed, 10 Jun 2009 16:20:26 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	linux-pm@...ts.linux-foundation.org,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [patch update] Re: [linux-pm] Run-time PM idea (was: Re: [RFC][PATCH 0/2] PM: Rearrange core suspend code)

Am Mittwoch, 10. Juni 2009 10:29:26 schrieb Rafael J. Wysocki:
> Argh, I forgot about some important things.
>
> First, there are devices with no parent (actually, it would be much easier
> if they had a default dummy parent, but that's a separate issue).
>
> Second, the parent has to be taken into account in the asynchronous resume
> path too (which BTW is more complicated).

What happens if the parent's parent is also suspended? It seems to me that
you must code this recursively.

	Regards
		Oliver

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