From mboxrd@z Thu Jan  1 00:00:00 1970
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Subject: Re: [PATCH 2/3] USB: OMAP: add omap-otg
Date: Fri, 14 Jun 2013 01:37:11 +0300
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To: Felipe Balbi <balbi@ti.com>
Cc: linux-usb@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tony Lindgren <tony@atomide.com>

Hi,

On Wed, Jun 12, 2013 at 06:13:26PM +0300, Felipe Balbi wrote:
> On Mon, Jun 10, 2013 at 01:40:05AM +0300, Aaro Koskinen wrote:
> > +void omap_otg_set_mode(enum omap_otg_mode mode)
> > +{
> > +	if (!otg_dev) {
> > +		WARN(1, "%s: controller not present\n", __func__);
> > +		return;
> > +	}
> > +	mutex_lock(&otg_dev->serialize);
> > +	switch (mode) {
> > +	case OMAP_OTG_MODE_DEVICE:
> > +		/*
> > +		 * Set B-session valid.
> > +		 */
> > +		omap_otg_ctrl(OMAP_OTG_ID | OMAP_OTG_BSESSVLD);
> > +		break;
> > +	case OMAP_OTG_MODE_HOST:
> > +		/*
> > +		 * Set A-session valid.
> > +		 */
> > +		omap_otg_ctrl(OMAP_OTG_ASESSVLD);
> > +		break;
> > +	case OMAP_OTG_MODE_DISCONNECT:
> > +		/*
> > +		 * Set B-session end to indicate no VBUS.
> > +		 */
> > +		omap_otg_ctrl(OMAP_OTG_ID | OMAP_OTG_BSESSEND);
> > +		break;
> > +	default:
> > +		WARN(1, "%s: unknown mode: %d\n", __func__, mode);
> > +	}
> > +	mutex_unlock(&otg_dev->serialize);
> > +}
> > +EXPORT_SYMBOL_GPL(omap_otg_set_mode);
> 
> looks like this should provide a extcon interface for its users.

Is there any examples available? Anyway, I'll look into this.

Thanks,

A.