From: Kevin Hilman <khilman@kernel.org>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH/RFC v2 04/12] PM / Domains: Add genpd attach/detach callbacks
Date: Thu, 25 Sep 2014 21:33:55 +0000 [thread overview]
Message-ID: <7h61gbbd18.fsf@deeprootsystems.com> (raw)
In-Reply-To: <1410893339-6361-5-git-send-email-geert+renesas@glider.be> (Geert Uytterhoeven's message of "Tue, 16 Sep 2014 20:48:51 +0200")
Geert Uytterhoeven <geert+renesas@glider.be> writes:
> While a PM domain can enable PM runtime management of its devices' module
> clocks by setting
>
> genpd->dev_ops.stop = pm_clk_suspend;
> genpd->dev_ops.start = pm_clk_resume;
>
> this also requires registering the clocks with the pm_clk subsystem.
> In the legacy case, this is handled by the platform code, after
> attaching the device to its PM domain.
>
> When the devices are instantiated from DT, devices are attached to their
> PM domains by generic code, leaving no method for the platform-specific
> PM domain code to register their clocks.
>
> Add two callbacks, allowing a PM domain to perform platform-specific
> tasks when a device is attached to or detached from a PM domain.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Nice, I like this approach!
Acked-by: Kevin Hilman <khilman@linaro.org>
Kevin
next prev parent reply other threads:[~2014-09-25 21:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-16 18:48 [PATCH/RFC v2 00/12] ARM: shmobile: R-Mobile: Prototype DT PM domain support Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 01/12] PM / Domains: Add DT bindings for power-on/off latencies Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 02/12] PM / Domains: Add DT bindings for PM QoS device latencies Geert Uytterhoeven
2014-09-25 21:31 ` Kevin Hilman
2014-09-26 6:25 ` Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 03/12] PM / Domains: Add DT bindings for the R-Mobile System Controller Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 04/12] PM / Domains: Add genpd attach/detach callbacks Geert Uytterhoeven
2014-09-17 17:44 ` Ulf Hansson
2014-09-25 21:33 ` Kevin Hilman [this message]
2014-09-16 18:48 ` [PATCH/RFC v2 05/12] PM / Domains: Add helper variable np = dev->of_node Geert Uytterhoeven
2014-09-25 21:36 ` Kevin Hilman
2014-09-16 18:48 ` [PATCH/RFC v2 06/12] PM / Domains: Retrieve PM QoS device latencies from DT Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 07/12] ARM: shmobile: R-Mobile: Use generic_pm_domain.attach_dev() for pm_clk setup Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 08/12] ARM: shmobile: R-Mobile: Store SYSC base address in rmobile_pm_domain Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 09/12] ARM: shmobile: R-Mobile: Add DT support for PM domains Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 10/12] ARM: shmobile: r8a7740 dtsi: Add PM domain support Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 11/12] ARM: shmobile: r8a7740 dtsi: Add PM QoS device latencies Geert Uytterhoeven
2014-09-16 18:48 ` [PATCH/RFC v2 12/12] drivers: sh: Disable PM runtime for multi-platform r8a7740 with genpd Geert Uytterhoeven
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