From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 59A37B78 for ; Wed, 18 Oct 2017 13:18:12 +0000 (UTC) Received: from mail.free-electrons.com (mail.free-electrons.com [62.4.15.54]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 0211A466 for ; Wed, 18 Oct 2017 13:18:10 +0000 (UTC) Date: Wed, 18 Oct 2017 15:18:09 +0200 From: Alexandre Belloni To: Pantelis Antoniou Message-ID: <20171018131809.q5nccysb2j7lu4bn@piout.net> References: <20171017114823.58476908@bbrezillon> <1508257276.74236.38.camel@freebsd.org> <2D4E6B6D-8F07-46D0-BB36-D97916802893@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Cc: "devicetree@vger.kernel.org" , Kumar Gala , "ksummit-discuss@lists.linuxfoundation.org" , Ian Lepore , "devicetree-spec@vger.kernel.org" , "Bird, Timothy" Subject: Re: [Ksummit-discuss] Devicetree Workshop at Kernel Summit Prague (26 Oct 2017) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 18/10/2017 at 15:59:00 +0300, Pantelis Antoniou wrote: > Hi Grant, > > > On Oct 18, 2017, at 15:14 , Grant Likely wrote: > > > > On Tue, Oct 17, 2017 at 8:03 PM, Bird, Timothy wrote: > >>> -----Original Message----- > >>> From Geert Uytterhoeven on Tuesday, October 17, 2017 10:24 AM > >>> On Tue, Oct 17, 2017 at 7:02 PM, Kumar Gala wrote: > >>>> I think this also gets to having bindings described in a structured way so > >>> they can be utilized for validation of dts files. We are doing a little of this in > >>> Zephyr since we are using a structured binding spec to generate code from > >>> .dts (since we don’t utilize a runtime dtb). > >>> > >>> So you are basically generating board files from .dts? > >>> (closing the loop ;-) > >> > >> I think we ought to do this on Linux, as a size optimization. > >> -- Tim > >> > >> P.S. I think I'll leave it ambiguous whether this was meant as a joke or not. :-) > > > > As crazy that sounds it is possible using the YAML bindings, i.e. C structure definitions > and fill-up from DT automatically. Whether this is a good idea it’s another question :) > But that doesn't work with any driver parsing custom properties (using of_property_read_* and the likes). I would very much like to see what are the boot time improvements when doing that ;) -- Alexandre Belloni, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre Belloni Subject: Re: [Ksummit-discuss] Devicetree Workshop at Kernel Summit Prague (26 Oct 2017) Date: Wed, 18 Oct 2017 15:18:09 +0200 Message-ID: <20171018131809.q5nccysb2j7lu4bn@piout.net> References: <20171017114823.58476908@bbrezillon> <1508257276.74236.38.camel@freebsd.org> <2D4E6B6D-8F07-46D0-BB36-D97916802893@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Content-Disposition: inline In-Reply-To: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Pantelis Antoniou Cc: Grant Likely , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Kumar Gala , "ksummit-discuss-cunTk1MwBs98uUxBSJOaYoYkZiVZrdSR2LY78lusg7I@public.gmane.org" , Ian Lepore , "devicetree-spec-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "Bird, Timothy" List-Id: devicetree@vger.kernel.org On 18/10/2017 at 15:59:00 +0300, Pantelis Antoniou wrote: > Hi Grant, > > > On Oct 18, 2017, at 15:14 , Grant Likely wrote: > > > > On Tue, Oct 17, 2017 at 8:03 PM, Bird, Timothy wrote: > >>> -----Original Message----- > >>> From Geert Uytterhoeven on Tuesday, October 17, 2017 10:24 AM > >>> On Tue, Oct 17, 2017 at 7:02 PM, Kumar Gala wrote: > >>>> I think this also gets to having bindings described in a structured way so > >>> they can be utilized for validation of dts files. We are doing a little of this in > >>> Zephyr since we are using a structured binding spec to generate code from > >>> .dts (since we don’t utilize a runtime dtb). > >>> > >>> So you are basically generating board files from .dts? > >>> (closing the loop ;-) > >> > >> I think we ought to do this on Linux, as a size optimization. > >> -- Tim > >> > >> P.S. I think I'll leave it ambiguous whether this was meant as a joke or not. :-) > > > > As crazy that sounds it is possible using the YAML bindings, i.e. C structure definitions > and fill-up from DT automatically. Whether this is a good idea it’s another question :) > But that doesn't work with any driver parsing custom properties (using of_property_read_* and the likes). I would very much like to see what are the boot time improvements when doing that ;) -- Alexandre Belloni, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html