linux-kernel - Re: [PATCH 11/11] i2c: omap: enhance pinctrl support

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Date:	Tue, 4 Jun 2013 09:23:24 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Kevin Hilman <khilman@...aro.org>
Cc:	Hebbar Gururaja <gururaja.hebbar@...com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	"davinci-linux-open-source@...ux.davincidsp.com" 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Vaibhav Bedia <vaibhav.bedia@...com>, sudhakar.raj@...com,
	Tony Lindgren <tony@...mide.com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Linux-OMAP <linux-omap@...r.kernel.org>,
	"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>
Subject: Re: [PATCH 11/11] i2c: omap: enhance pinctrl support

On Fri, May 31, 2013 at 8:07 PM, Kevin Hilman <khilman@...aro.org> wrote:

> But that brings up a bigger question about whether or not we should be
> doing the rest of this (idle/sleep) pin management in the drivers or in
> the driver core as well.  I would much prefer it be handled by the
> driver core.

Yes. See my suggestion in 2/11.

> In fact, since these are all PM related events, it should probably be
> handled by the PM core and seems pretty straight forward to do so.

I can see a clean interface with three simple functions toward
<pinctrl/consumer.h> for switching between the default, idle and
sleep states, but you may see even further...

Yours,
Linus Walleij
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