linux-kernel - Re: [PATCH v2] extcon: otg_gpio: add driver for USB OTG port controlled by GPIO(s)

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Message-ID: <CACRpkdYq2oDewDKfcv9H_2Sio+s6R5H-4GugYTwA0+=-xqn3ZQ@mail.gmail.com>
Date:	Sat, 7 Mar 2015 21:06:22 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	David Cohen <david.a.cohen@...ux.intel.com>
Cc:	Robert Baldyga <r.baldyga@...sung.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	baolu.lu@...ux.intel.com, Felipe Balbi <balbi@...com>
Subject: Re: [PATCH v2] extcon: otg_gpio: add driver for USB OTG port
 controlled by GPIO(s)

On Fri, Feb 20, 2015 at 8:17 PM, David Cohen
<david.a.cohen@...ux.intel.com> wrote:
> On Fri, Feb 20, 2015 at 10:53:44AM +0100, Linus Walleij wrote:

>> I would put this adjacent to the phy driver somewhere in drivers/usb/*
>> and make the actual USB-driver thing handle its GPIOs directly.
>> But I guess David and Felipe have already discussed that as we're
>> seeing this patch?
>
> - The mux functions would be controlled by a possible new pinctrl-gpio
> driver (Linus, your input here would be nice :)

I don't understand what this means, does it mean a pin control function
somewhere else controlled by a GPIO pin?

Or do you mean a new combined pin control and GPIO driver (we have
plenty of these).

If you elaborate on what you need to do in that driver I might
understand it better.

Yours,
Linus Walleij
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