From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Gibson Subject: Re: dec behavior question Date: Wed, 26 Oct 2011 10:36:43 +1100 Message-ID: <20111025233643.GA5760@truffala.fritz.box> References: <9942C069-D8EC-4133-B436-1DC5F62C502E@kernel.crashing.org> <20111024231529.GE4191@truffala.fritz.box> <9F6FE96B71CF29479FF1CDC8046E1503253081@039-SN1MPN1-004.039d.mgd.msft.net> <0F565319-C054-4B46-8548-7BF4227BD237@kernel.crashing.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <0F565319-C054-4B46-8548-7BF4227BD237-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org To: Kumar Gala Cc: Yoder Stuart-B08248 , devicetree-discuss List-Id: devicetree@vger.kernel.org On Tue, Oct 25, 2011 at 08:41:55AM -0500, Kumar Gala wrote: > > On Oct 25, 2011, at 7:18 AM, Yoder Stuart-B08248 wrote: > > > > > > >> -----Original Message----- > >> From: devicetree-discuss-bounces+stuart.yoder=freescale.com-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org > >> [mailto:devicetree-discuss-bounces+stuart.yoder=freescale.com-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org] On Behalf Of > >> David Gibson > >> Sent: Monday, October 24, 2011 6:15 PM > >> To: Kumar Gala > >> Cc: devicetree-discuss > >> Subject: Re: dec behavior question > >> > >> On Mon, Oct 24, 2011 at 09:01:49AM -0500, Kumar Gala wrote: > >>> If I have something like: > >>> > >>> --------------------------------------- > >>> spi.dtsi: > >>> > >>> &spi0 { > >>> #address-cells = <1>; > >>> #size-cells = <0>; > >>> compatible = "fsl,mpc8536-espi"; > >>> reg = <0x7000 0x1000>; > >>> interrupts = <59 0x2 0 0>; > >>> }; > >>> --------------------------------------- > >>> > >>> foo.dts: > >>> > >>> spi0: spi@f00bar { > >>> compatible = "FOOBAR"; > >>> }; > >>> > >>> /include/ "spi.dtsi" > >>> > >>> --------------------------------------- > >>> > >>> What do you expect the resulting dtb to look like w/regards to the > >>> compatible node? > >> > >> It's always last tree wins. So it will end up with compatible = "FOOBAR". > > > > If last wins, then it would be the included file > > (compatible = "fsl,mpc8536-espi"), no? Uh, yes, sorry. I misread and assumed the /include/ came first. > I don't believe so because the include of spi.dtsi doesn't actually > instantiate a node. This is a little different than use of > 'include' for merging of nodes. No, it really isn't. /include/ is just a textual include. If a node is defined multiple times, properties in the last definition always win. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson