linux-kernel - Re: [PATCH 2/5] HSI: nokia-modem: kernel based PM

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Message-ID: <20160131180009.GB18175@earth>
Date:	Sun, 31 Jan 2016 19:00:09 +0100
From:	Sebastian Reichel <sre@...nel.org>
To:	Pavel Machek <pavel@....cz>
Cc:	Tony Lindgren <tony@...mide.com>,
	Benoît Cousson <bcousson@...libre.com>,
	Aaro Koskinen <aaro.koskinen@....fi>,
	Pali Rohár <pali.rohar@...il.com>,
	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] HSI: nokia-modem: kernel based PM

Hi,

On Sun, Jan 31, 2016 at 06:29:48PM +0100, Pavel Machek wrote:
> > So far power management had to be done in uerspace using exported
> 
> "userspace"

Right, thanks.

> > This patch adds kernel based power management, which will bind the
> > modem's power state to the state of the phonet network interface.
> 
> Ok, so I have ofonod that already does power management in
> userspace. What happens when power management is done twice?

I have patches for ofono, which add support for the in-kernel
power management. Currently ofono will not start with the new
method, since it wants the GPIOs for userspace based PM.

-- Sebastian

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