From: Kevin Hilman <khilman@kernel.org>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alan Stern <stern@rowland.harvard.edu>,
linux-pm@vger.kernel.org, Len Brown <len.brown@intel.com>,
Pavel Machek <pavel@ucw.cz>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
Eduardo Valentin <edubezval@gmail.com>
Subject: Re: [PATCH v2] Driver core: Re-init runtime PM states at probe error and driver unbind
Date: Wed, 18 Nov 2015 10:27:15 -0800 [thread overview]
Message-ID: <7hoaerxiws.fsf@deeprootsystems.com> (raw)
In-Reply-To: <1447843719-9501-1-git-send-email-ulf.hansson@linaro.org> (Ulf Hansson's message of "Wed, 18 Nov 2015 11:48:39 +0100")
Ulf Hansson <ulf.hansson@linaro.org> writes:
> There are two common expectations among several subsystems/drivers that
> deploys runtime PM support, but which isn't met by the driver core.
[...]
> To address these issues, let's change the policy of the driver core to
> meet these expectations. More precisely, at ->probe() failures and driver
> unbind, restore the initial states of runtime PM.
>
> Although to still allow subsystem's to control PM for devices that doesn't
> ->probe() successfully, don't restore the initial states unless runtime PM
> is disabled.
>
> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Thanks for the detailed changelog!
Kevin
next prev parent reply other threads:[~2015-11-18 18:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-18 10:48 [PATCH v2] Driver core: Re-init runtime PM states at probe error and driver unbind Ulf Hansson
2015-11-18 18:27 ` Kevin Hilman [this message]
2015-12-02 2:16 ` Rafael J. Wysocki
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