linux-kernel - Re: [PATCH 3/4] imx27-dt: configure i2c1 gpio on armadeus apf27

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Message-ID: <20121126095956.GD10369@pengutronix.de>
Date:	Mon, 26 Nov 2012 10:59:56 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:	Philippe Reynes <tremyfr@...oo.fr>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, eric.jarrige@...adeus.org,
	julien.boibessot@...adeus.com
Subject: Re: [PATCH 3/4] imx27-dt: configure i2c1 gpio on armadeus apf27

On Mon, Nov 26, 2012 at 10:28:58AM +0100, Thomas Petazzoni wrote:
> Dear Philippe Reynes,
> 
> On Sun, 25 Nov 2012 21:17:04 +0100, Philippe Reynes wrote:
> 
> >  static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = {
> > @@ -48,6 +49,10 @@ int apf27_lan8700_wakeup(struct phy_device *phydev)
> >  static void __init apf27_init(void)
> >  {
> >  	phy_register_fixup_for_id("imx27-fec.0-1:1f", apf27_lan8700_wakeup);
> > +
> > +	/* configure i2c1 gpio */
> > +	mxc_gpio_mode((GPIO_PORTD | GPIO_OUT | GPIO_PF | 17));
> > +	mxc_gpio_mode((GPIO_PORTD | GPIO_OUT | GPIO_PF | 18));
> >  }
> 
> I haven't followed i.MX 27 support lately, but this surely should be
> done using a pinctrl driver. I see that there is a general pinctrl
> driver for i.MX, but a drivers/pinctrl/pinctrl-imx27.c might be
> missing. It would probably be a better idea to implement the missing
> pinctrl driver, if not already available?

It's not available, and yes, it should be implemented. Adding the iomux
setup to a i.MX27 SoC specific file is not a good idea.

Sascha

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