From: Kevin Hilman <khilman@baylibre.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: "Rafael J . Wysocki" <rjw@rjwysocki.net>,
linux-pm@vger.kernel.org, Len Brown <len.brown@intel.com>,
Pavel Machek <pavel@ucw.cz>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Lina Iyer <lina.iyer@linaro.org>,
Jon Hunter <jonathanh@nvidia.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Viresh Kumar <viresh.kumar@linaro.org>
Subject: Re: [PATCH 0/4] PM / Domains: Add support for always on PM domains in genpd
Date: Sun, 23 Apr 2017 15:12:53 -0700 [thread overview]
Message-ID: <m2mvb64vtm.fsf@baylibre.com> (raw)
In-Reply-To: <1490005163-28633-1-git-send-email-ulf.hansson@linaro.org> (Ulf Hansson's message of "Mon, 20 Mar 2017 11:19:19 +0100")
Ulf Hansson <ulf.hansson@linaro.org> writes:
> The current method to implement an always on PM domain by users of genpd,
> consists of returning -EBUSY from their ->power_off() callback. This approach is
> suboptimal as genpd is required to follow the regular execution path of its
> power off sequence, which ends by invoking the ->power_off() callback.
>
> To enable genpd to early abort the power off sequence for always on PM domains,
> it needs static information about these configurations. Therefore this series
> invents add new genpd configuration flag, GENPD_FLAG_ALWAYS_ON, which allow
> users to explicity tell genpd about these kind of PM domains.
>
> Some additonal changes, which are related this context, are also folded in as a
> part of the series.
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
prev parent reply other threads:[~2017-04-24 19:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-20 10:19 [PATCH 0/4] PM / Domains: Add support for always on PM domains in genpd Ulf Hansson
2017-03-20 10:19 ` [PATCH 1/4] PM / Domains: Clean up code validating genpd's status Ulf Hansson
2017-03-20 11:07 ` Viresh Kumar
2017-03-20 11:49 ` Geert Uytterhoeven
2017-03-20 17:10 ` Bartlomiej Zolnierkiewicz
2017-03-20 10:19 ` [PATCH 2/4] PM / Domains: Enable users of genpd to specify always on PM domains Ulf Hansson
2017-03-20 11:11 ` Viresh Kumar
2017-03-20 11:54 ` Geert Uytterhoeven
2017-03-20 17:10 ` Bartlomiej Zolnierkiewicz
2017-03-20 10:19 ` [PATCH 3/4] PM / Domains: Respect errors from genpd's ->power_off() callback Ulf Hansson
2017-03-20 11:11 ` Viresh Kumar
2017-03-20 11:58 ` Geert Uytterhoeven
2017-03-20 17:14 ` Bartlomiej Zolnierkiewicz
2017-03-20 10:19 ` [PATCH 4/4] PM / Domains: Don't warn about IRQ safe device for an always on PM domain Ulf Hansson
2017-03-20 11:12 ` Viresh Kumar
2017-03-20 11:59 ` Geert Uytterhoeven
2017-03-20 17:14 ` Bartlomiej Zolnierkiewicz
2017-04-23 22:12 ` Kevin Hilman [this message]
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