linux-kernel - Re: [PATCH] PM / domains: Kconfig: always enable PM

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Message-ID: <7ha93t8z1q.fsf@deeprootsystems.com>
Date:	Fri, 14 Nov 2014 09:36:17 -0800
From:	Kevin Hilman <khilman@...nel.org>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Linux PM list <linux-pm@...r.kernel.org>,
	linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] PM / domains: Kconfig: always enable PM_RUNTIME when genpd enabled

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

> Hi Kevin,
>
> On Thu, Nov 13, 2014 at 11:28 PM, Kevin Hilman <khilman@...nel.org> wrote:
>> It makes little sense to use generic power domains without runtime PM.
>
> Does it?
> It still powers down the PM domains on system suspend (at least on my
> boards ;-)

Sure, but your devices are also using runtime PM, so I'm not sure how
does that change my statement above?

>> Also, since the complexities of handling the !PM_RUNTIME case are
>> causing more trouble and confusion than they're worth, let's simplify
>> the world by making genpd always enable runtime PM.
>
> What do other people think?

Yes, I'm curious also.  This patch was supposed to be marked RFC.

Kevin
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