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Date: Sat, 7 Mar 2015 21:03:54 +0100
Message-ID: <CACRpkdZyGmx8srMCyXKhQyik4us_2=Hv+mG+V4O+9LJ_fKMAcw@mail.gmail.com>
Subject: Re: [PATCH v2] extcon: otg_gpio: add driver for USB OTG port
 controlled by GPIO(s)
From: Linus Walleij <linus.walleij@linaro.org>
To: David Cohen <david.a.cohen@linux.intel.com>
Cc: Felipe Balbi <balbi@ti.com>, Robert Baldyga <r.baldyga@samsung.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        MyungJoo Ham <myungjoo.ham@samsung.com>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
        baolu.lu@linux.intel.com
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On Fri, Feb 20, 2015 at 9:40 PM, David Cohen
<david.a.cohen@linux.intel.com> wrote:
> On Fri, Feb 20, 2015 at 02:00:26PM -0600, Felipe Balbi wrote:
>> On Fri, Feb 20, 2015 at 11:59:27AM -0800, David Cohen wrote:

>> > I'd need to lookup GPIOs via ACPI without requesting them on mfd driver
>> > and then give them to children devices.
>> > Heikki proposed a way to do that on [1], but it got nack'ed by community.
>>
>> you missed [1] :-)
>
> Oops. Looks like it went away during your past reply :)
>
> [1] https://lkml.org/lkml/2014/12/18/82

We don't want to do that in generic code since it's an ACPI
problem, not a generic GPIO problem.

So the solution must be confined to the GPIO ACPI portions
of the GPIO code, not altering central mechanisms.

Yours,
Linus Walleij