From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kevin Hilman <khilman-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [RFC PATCH 2/2] iommu: rockchip: Handle system-wide and runtime PM
Date: Mon, 15 Dec 2014 10:06:51 -0800
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	(Geert Uytterhoeven's message of "Mon, 15 Dec 2014 09:35:09 +0100")
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To: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>
Cc: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>, Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>, "linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "Rafael J. Wysocki" <rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org>, "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Daniel Kurtz <djkurtz-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>, Tomasz Figa <tfiga-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>, "open list:ARM/Rockchip SoC..." <linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Laurent Pinchart <laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>, Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>, Sylwester Nawrocki <s.nawrocki-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>, "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" <linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
List-Id: linux-pm@vger.kernel.org

Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org> writes:

> On Fri, Dec 12, 2014 at 9:04 PM, Kevin Hilman <khilman-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
>> An even more exciting problem exists when a CPU is in the same domain as
>> other peripherals, those peripherals are all idle and the power domain
>> is gated. :)
>
> We do have pm_genpd_attach_cpuidle() and pm_genpd_name_attach_cpuidle()?

Exactly.  

And I think to solve this problem, we need to generalize the attaching
of dependent devices to a PM domain.

Kevin