linux-kernel - Re: [PATCH v2 0/2] extcon: Add fsa9480 extcon driver

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Message-ID: <20190628123738.GA25339@kroah.com>
Date:   Fri, 28 Jun 2019 14:37:38 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>,
        Donggeun Kim <dg77.kim@...sung.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 0/2] extcon: Add fsa9480 extcon driver

On Fri, Jun 28, 2019 at 11:28:11AM +0100, Linus Walleij wrote:
> On Fri, Jun 21, 2019 at 12:14 PM Paweł Chmiel
> <pawel.mikolaj.chmiel@...il.com> wrote:
> 
> > This small patchset adds support for Fairchild Semiconductor FSA9480
> > microUSB switch.
> >
> > It has been tested on Samsung Galaxy S and Samsung Fascinate 4G,
> > but it can be found also on other Samsung Aries (s5pv210) based devices.
> >
> > Tomasz Figa (2):
> >   dt-bindings: extcon: Add support for fsa9480 switch
> >   extcon: Add fsa9480 extcon driver
> 
> This is surely an important driver since almost all elder Samsung
> mobiles use this kind of switch. So
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
> 
> This driver I see is already sent to Greg for inclusion in the next kernel.
> I just wonder if you guys are even aware of this driver for the same
> hardware added by Donggeun Kim in 2011:
> drivers/misc/fsa9480.c
> 
> That said I am all for pulling in this new driver because it is surely
> better and supports device tree.
> 
> But can we please also send Greg a patch to delete the old driver
> so we don't have two of them now?
> 
> The old driver have no in-tree users so it can be deleted without
> side effects. Out-of-tree users can certainly adapt to the new
> extcon driver.
> 
> If you want I can send a deletion patch for the misc driver?

Please, I'll gladly take a patch that deletes code :)

thanks,

greg k-h