linux-kernel - RE: [PATCH V1 04/10] watchdog: da9061: watchdog driver (RFC)

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Message-ID: <6ED8E3B22081A4459DAC7699F3695FB7018CCE282C@SW-EX-MBX02.diasemi.com>
Date:   Fri, 7 Oct 2016 18:01:23 +0000
From:   Steve Twiss <stwiss.opensource@...semi.com>
To:     Guenter Roeck <linux@...ck-us.net>
CC:     Wim Van Sebroeck <wim@...ana.be>, Lee Jones <lee.jones@...aro.org>,
        "Dmitry Torokhov" <dmitry.torokhov@...il.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        DEVICETREE <devicetree@...r.kernel.org>,
        LINUX-INPUT <linux-input@...r.kernel.org>,
        LINUX-PM <linux-pm@...r.kernel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Support Opensource <Support.Opensource@...semi.com>,
        LINUX-KERNEL <linux-kernel@...r.kernel.org>,
        LINUX-WATCHDOG <linux-watchdog@...r.kernel.org>
Subject: RE: [PATCH V1 04/10] watchdog: da9061: watchdog driver (RFC)

On 07 October 2016 18:02, Guenter Roeck wrote:

> > On 06 October 2016 19:49, Guenter Roeck wrote:
> > > On Thu, Oct 06, 2016 at 04:28:14PM +0000, Steve Twiss wrote:
> > > > I am using the compatible string to pick a different configuration .data block:
> > > > { .compatible = "dlg,da9062-watchdog", .data = &da9062_watchdog_info },
> > > > { .compatible = "dlg,da9061-watchdog", .data = &da9061_watchdog_info },
> > > >
> > > > But, it is just my opinion to keep the "name" different.
> > > > This will not be my decision if accepted into the Linux kernel, but I would like to
> > > > at least be consistent for DA9061 and DA9062 so ... is this an issue?
> > >
> > > FWIW the driver doesn't really need to be updated in the first place.
> > > A compatible statement listing both da9061 and da9062 would do it.
> >
> > I will make the changes you requested: deprecate the existing compatibility
> > for da9062-watchdog and make a new compatibility string which combines both
> > da9061 and da9062.
> >
> That is not what I asked for.

Ok. Did you mean separate compatible statements with data sections pointing at 
the same structure?

Like this:
{ .compatible = "dlg,da9062-watchdog", .data = &da9062_watchdog_info },
{ .compatible = "dlg,da9061-watchdog", .data = &da9062_watchdog_info },

So this would be the only change needed in the device driver.