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From: Kevin Hilman <khilman@kernel.org>
To: Rajendra Nayak <rnayak@codeaurora.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
	Linux PM list <linux-pm@vger.kernel.org>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Stephen Boyd <sboyd@codeaurora.org>
Subject: Re: [PATCH] PM / Domains: Make pm_genpd_init() available to modules
Date: Tue, 25 Aug 2015 11:08:16 -0700	[thread overview]
Message-ID: <7hegirckbz.fsf@deeprootsystems.com> (raw)
In-Reply-To: <CAMuHMdW2=+sNHFcBHNTGZrVT8Otx-LKyfywzo_q-ep1J1zic+Q@mail.gmail.com> (Geert Uytterhoeven's message of "Fri, 14 Aug 2015 09:56:32 +0200")

Geert Uytterhoeven <geert@linux-m68k.org> writes:

> On Thu, Aug 13, 2015 at 8:21 AM, Rajendra Nayak <rnayak@codeaurora.org> wrote:
>> Export symbol pm_genpd_init so it can be used in loadable
>> kernel modules
>>
>> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
>> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
>
> Assuming you're aware of the consequences:
>   - Modular PM Domain drivers don't work for "critical" devices where the
>     driver is started from *OF_DECLARE(),
>   - This may depend on "PM / Domains: Return -EPROBE_DEFER if we fail to
>     init or turn-on domain" in pm/linux-next
>     https://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=311fa6adf92c5110057daa439fdaff012864aa2b
>
> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>

Right, things can get "interesting" and there are known limitations, but
we shouldn't prevent it, and also it might help us fix the above
limitations.

Acked-by: Kevin Hilman <khilman@linaro.org>

Rafael, can you pick this one up?  I think it's better to go through the
PM tree.  v4.2 would be ideal, but I realize it's probably a bit late
for that.

Kevin

      reply	other threads:[~2015-08-25 18:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-13  6:21 [PATCH] PM / Domains: Make pm_genpd_init() available to modules Rajendra Nayak
2015-08-13 18:11 ` Stephen Boyd
2015-08-17  4:17   ` Rajendra Nayak
2015-08-14  7:56 ` Geert Uytterhoeven
2015-08-25 18:08   ` Kevin Hilman [this message]

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