From: Tony Lindgren <tony@atomide.com>
To: Johan Hovold <johan@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
Alan Stern <stern@rowland.harvard.edu>,
Kevin Hilman <khilman@baylibre.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] PM / Runtime: document autosuspend-helper side effects
Date: Mon, 10 Apr 2017 09:36:03 -0700 [thread overview]
Message-ID: <20170410163603.GG5339@atomide.com> (raw)
In-Reply-To: <20170410113825.17399-2-johan@kernel.org>
* Johan Hovold <johan@kernel.org> [170410 04:41]:
> Document the fact that the autosuspend delay and enable helpers may
> change the power.usage_count and resume or suspend a device depending on
> the values of power.autosuspend_delay and power.use_autosuspend.
>
> Note that this means that a driver must disable autosuspend before
> disabling runtime pm on probe errors and on driver unbind if the device
> is to be suspended upon return (as a negative delay may otherwise keep
> the device resumed).
>
> Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
next prev parent reply other threads:[~2017-04-10 16:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-10 11:38 [PATCH 1/2] PM / Runtime: fix autosuspend documentation Johan Hovold
2017-04-10 11:38 ` [PATCH 2/2] PM / Runtime: document autosuspend-helper side effects Johan Hovold
2017-04-10 16:36 ` Tony Lindgren [this message]
2017-04-10 16:35 ` [PATCH 1/2] PM / Runtime: fix autosuspend documentation Tony Lindgren
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