From mboxrd@z Thu Jan 1 00:00:00 1970 From: LW@KARO-electronics.de (=?utf-8?Q?Lothar_Wa=C3=9Fmann?=) Date: Mon, 12 Aug 2013 14:05:51 +0200 Subject: [PATCH 1/3] ARM: dts: mxs: set dcp to "disabled" by default In-Reply-To: <20130812110523.GD25292@S2101-09.ap.freescale.net> References: <1375968629-10091-1-git-send-email-LW@KARO-electronics.de> <1375968629-10091-2-git-send-email-LW@KARO-electronics.de> <20130812110523.GD25292@S2101-09.ap.freescale.net> Message-ID: <21000.53151.841177.378797@ipc1.ka-ro> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, Shawn Guo writes: > On Thu, Aug 08, 2013 at 03:30:27PM +0200, Lothar Wa?mann wrote: > > Reintroduce 'status = "disabled"' for the dcp node that was dropped by > > commit 519d8b1a "Added support for Freescale's DCP co-processor". > > For IP blocks that do not have pins to be routed on boards, it should be > fine to have it enabled in .dtsi. > 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?mann -- ___________________________________________________________ Ka-Ro electronics GmbH | Pascalstra?e 22 | D - 52076 Aachen Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10 Gesch?ftsf?hrer: Matthias Kaussen Handelsregistereintrag: Amtsgericht Aachen, HRB 4996 www.karo-electronics.de | info at karo-electronics.de ___________________________________________________________