From: Kevin Hilman <khilman@kernel.org>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
Alan Stern <stern@rowland.harvard.edu>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Tomasz Figa <tomasz.figa@gmail.com>,
Simon Horman <horms@verge.net.au>,
Magnus Damm <magnus.damm@gmail.com>,
Ben Dooks <ben-linux@fluff.org>,
Kukjin Kim <kgene.kim@samsung.com>,
Philipp Zabel <philipp.zabel@gmail.com>,
Mark Brown <broonie@kernel.org>, Wolfram Sang <wsa@the-dreams.de>,
Russell King <linux@arm.linux.org.uk>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Jack Dai <jack.dai@rock-chips.com>,
Jinkun Hong <jinkun.hong@rock-chips.com>,
Aaron Lu <aaron.lu@intel.com>,
Sylwester Nawrocki <s.nawrocki@samsung.com>
Subject: Re: [PATCH 1/4] PM / Domains: Remove reference counting for the generic_pm_domain_data
Date: Wed, 29 Oct 2014 13:44:24 -0700 [thread overview]
Message-ID: <7hk33i7gif.fsf@deeprootsystems.com> (raw)
In-Reply-To: <1414507090-516-2-git-send-email-ulf.hansson@linaro.org> (Ulf Hansson's message of "Tue, 28 Oct 2014 15:38:07 +0100")
Ulf Hansson <ulf.hansson@linaro.org> writes:
> The reference counting isn't needed, let's remove it.
After reading the commit that added this feature[1], I think this
changelog needs a more detail explaining why it's not needed anymore.
Kevin
[1]
commit 1d5fcfec22ce5f69db0d29284d2b65ff8ab1bfaa
Author: Rafael J. Wysocki <rjw@sisk.pl>
Date: Thu Jul 5 22:12:32 2012 +0200
PM / Domains: Add device domain data reference counter
Add a mechanism for counting references to the
struct generic_pm_domain_data object pointed to by
dev->power.subsys_data->domain_data if the device in question
belongs to a generic PM domain.
This change is necessary for a subsequent patch making it possible to
allocate that object from within pm_genpd_add_callbacks(), so that
drivers can attach their PM domain device callbacks to devices before
those devices are added to PM domains.
This patch has been tested on the SH7372 Mackerel board.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
next prev parent reply other threads:[~2014-10-29 20:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-28 14:38 [PATCH 0/4] PM / Domains: Handle errors from ->attach_dev() callback Ulf Hansson
2014-10-28 14:38 ` [PATCH 1/4] PM / Domains: Remove reference counting for the generic_pm_domain_data Ulf Hansson
2014-10-29 20:44 ` Kevin Hilman [this message]
2014-10-28 14:38 ` [PATCH 2/4] PM / Domains: Don't allow an existing generic PM domain data Ulf Hansson
2014-10-29 22:28 ` Kevin Hilman
2014-10-28 14:38 ` [PATCH 3/4] PM / Domains: Improve error handling while adding/removing devices Ulf Hansson
2014-10-29 23:53 ` Kevin Hilman
2014-10-30 11:27 ` Ulf Hansson
2014-10-29 23:57 ` Kevin Hilman
2014-10-30 11:25 ` Ulf Hansson
2014-11-05 7:47 ` Geert Uytterhoeven
2014-11-05 8:03 ` Ulf Hansson
2014-10-28 14:38 ` [PATCH 4/4] PM / Domains: Let the ->attach_dev() callback return an error code Ulf Hansson
2014-10-28 20:31 ` Geert Uytterhoeven
2014-10-29 9:26 ` Ulf Hansson
2014-10-29 9:32 ` Geert Uytterhoeven
2014-10-29 10:14 ` Ulf Hansson
2014-10-29 10:28 ` Geert Uytterhoeven
2014-10-29 21:10 ` Kevin Hilman
2014-10-29 21:18 ` Geert Uytterhoeven
2014-10-30 11:34 ` Ulf Hansson
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