linux-kernel - Re: [PATCH 1/2] mux: add mux_control_get

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Date:   Wed, 20 Sep 2017 09:11:47 -0700
From:   Stephen Boyd <stephen.boyd@...aro.org>
To:     Hans de Goede <hdegoede@...hat.com>, Peter Rosin <peda@...ntia.se>
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Mathias Nyman <mathias.nyman@...el.com>,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        devel@...verdev.osuosl.org,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Sathyanarayanan Kuppuswamy Natarajan <sathyaosid@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH 1/2] mux: add mux_control_get_optional() API

Quoting Hans de Goede (2017-09-19 11:35:50)
> Hi,
> 
> On 09/08/2017 05:54 PM, Peter Rosin wrote:
> > On 2017-09-08 17:45, Peter Rosin wrote:
> >> From: Stephen Boyd <stephen.boyd@...aro.org>
> >>
> >> Sometimes drivers only use muxes under certain scenarios. For
> >> example, the chipidea usb controller may be connected to a usb
> >> switch on some platforms, and connected directly to a usb port on
> >> others. The driver won't know one way or the other though, so add
> >> a mux_control_get_optional() API that allows the driver to
> >> differentiate errors getting the mux from there not being a mux
> >> for the driver to use at all.
> >> ---
> >>   Documentation/driver-model/devres.txt |   1 +
> >>   drivers/mux/core.c                    | 104 +++++++++++++++++++++++++++-------
> >>   include/linux/mux/consumer.h          |   4 ++
> >>   3 files changed, 89 insertions(+), 20 deletions(-)
> >>
> >> I haven't tested this patch, and hence I have not signed it and I also
> >> removed the sign-off from Stephen...
> > 
> > Huh, I definitely intended to mention that this patch is based on [1]
> > from Stephen, but that I've made changes according to the comments in
> > that thread (and more). And those changes are what made me remove the
> > sign-off from Stephen...
> 
> AFAIK normally a Signed-off-by is kept if some (small-ish) changes
> are made. The S-o-b is mostly an indication that the author is
> ok with adding the code to the kernel under the GPL.
> 
> Anyways, Stephen are you ok with re-adding your S-o-b to
> the version modified by Peter?
> 

Please add my sign off

Signed-off-by: Stephen Boyd <stephen.boyd@...aro.org>

and I would expect Peter to have one as well with a maintainer tag
indicating what changed from my patch.