From: =?utf-8?Q?Lothar_Wa=C3=9Fmann?= <LW@KARO-electronics.de>
Subject: Re: [PATCH 1/3] ARM: dts: mxs: set dcp to "disabled" by default
Date: Mon, 12 Aug 2013 14:05:51 +0200
Message-ID: <21000.53151.841177.378797@ipc1.ka-ro>
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Cc: <devicetree@vger.kernel.org>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Rob Herring <rob.herring@calxeda.com>,
	<linux-crypto@vger.kernel.org>,
	Tobias Rauter <tobiasrauter@gmail.com>,
	<linux-arm-kernel@lists.infradead.org>
To: Shawn Guo <shawn.guo@linaro.org>
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Hi,

Shawn Guo writes:
> On Thu, Aug 08, 2013 at 03:30:27PM +0200, Lothar Wa=C3=9Fmann wrote:
> > Reintroduce 'status =3D "disabled"' for the dcp node that was dropp=
ed by
> > commit 519d8b1a "Added support for Freescale's DCP co-processor".
>=20
> For IP blocks that do not have pins to be routed on boards, it should=
 be
> fine to have it enabled in <soc>.dtsi.
>=20
That means that when a new driver is added, it will start wasting
resources on all board using that SoC unless the board maintainers
explicitly disable that driver in DTB.

I would prefer things to be the other way:
New drivers (no matter whether for chip-internal or external hardware)
should require to be explicitly enabled for those platforms on which
they are being used.


Lothar Wa=C3=9Fmann
--=20
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