Date: Thu, 3 Jul 2014 12:08:22 -0500
From: Felipe Balbi <balbi@ti.com>
To: Javier Martinez Canillas <javier@dowhile0.org>
CC: Sebastian Reichel <sre@kernel.org>, Felipe Balbi <balbi@ti.com>,
        Robert Nelson <robertcnelson@gmail.com>,
        Tony Lindgren <tony@atomide.com>, Aaro Koskinen <aaro.koskinen@iki.fi>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        linux kernel <linux-kernel@vger.kernel.org>,
        <linux-serial@vger.kernel.org>,
        Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
        Linux ARM Kernel Mailing List 
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [RFC PATCH] tty: serial: Add 8250-core based omap driver
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Reply-To: <balbi@ti.com>
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On Thu, Jul 03, 2014 at 06:19:47PM +0200, Javier Martinez Canillas wrote:
> On Thu, Jul 3, 2014 at 6:06 PM, Sebastian Reichel <sre@kernel.org> wrote:
> > Hi,
> >
> > On Thu, Jul 03, 2014 at 10:52:40AM -0500, Felipe Balbi wrote:
> >> > DT is supposed to contain information about the hardware, so it
> >> > should stay the same? I think there is no non-hackish way to decide
> >>
> >> compatible would change, at a minimum.
> >
> > why? I would expect it to stay the same (and the current patch uses
> > the same compatible strings).
> >
>=20
> Exactly, the new driver must support all the compatible strings
> defined in Documentation/devicetree/bindings/serial/omap_serial.tx
> (which already does as you pointed out).
>=20
> Otherwise the current drivers/tty/serial/omap-serial.c could never be
> removed since that would mean breaking DT backward compatibility.

that settles it then... good. I'll start testing this next week.

--=20
balbi

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