linux-kernel - Re: [PATCH v2 2/2] extcon: Add extcon-regulator driver

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Message-ID: <YnkyIBh2HnXXLHw3@sirena.org.uk>
Date:   Mon, 9 May 2022 16:24:16 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Chanwoo Choi <cwchoi00@...il.com>
Cc:     Zev Weiss <zev@...ilderbeest.net>,
        Liam Girdwood <lgirdwood@...il.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        openbmc@...ts.ozlabs.org
Subject: Re: [PATCH v2 2/2] extcon: Add extcon-regulator driver

On Mon, May 09, 2022 at 09:24:39PM +0900, Chanwoo Choi wrote:
> Hi Zev,
> 
> I checked this patch. But, it doesn't look like the extcon provider
> driver. Because basically, extcon provider driver need the circuit
> in order to detect the kind of external connector. But, there are
> no any code for detection. Just add the specific sysfs attribute
> for only this driver. It is not standard interface.

OTOH it's something where if I look at the physical system with the
hardware there's a clearly visible external connector that I can point
to - it just happens to not support hotplug.  It's not clear what other
system it would sit in, and it seems like an application that displays
external connections on a system in a UI would be able to do something
sensible with it.

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