From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sylwester Nawrocki Subject: Re: [PATCH v4 3/3] Documentation: of: Document graph bindings Date: Tue, 11 Mar 2014 14:47:14 +0100 Message-ID: <531F13E2.3040603@samsung.com> References: <1393340304-19005-1-git-send-email-p.zabel@pengutronix.de> <1393340304-19005-4-git-send-email-p.zabel@pengutronix.de> <530DE8A9.9050809@ti.com> <1393426623.3248.70.camel@paszta.hi.pengutronix.de> <530DFF4C.8080807@ti.com> <20140307181132.B2D71C40A88@trevor.secretlab.ca> <531AE46A.2060808@ti.com> <20140308122532.1AED9C40612@trevor.secretlab.ca> <531D6178.3070906@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-reply-to: <531D6178.3070906-l0cyMroinI0@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tomi Valkeinen , Grant Likely , Philipp Zabel Cc: Russell King - ARM Linux , Mauro Carvalho Chehab , Rob Herring , Laurent Pinchart , Kyungmin Park , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Guennadi Liakhovetski List-Id: devicetree@vger.kernel.org On 10/03/14 07:53, Tomi Valkeinen wrote: > On 08/03/14 14:25, Grant Likely wrote: > >> Sure. If endpoints are logical, then only create the ones actually >> hooked up. No problem there. But nor do I see any issue with having >> empty connections if the board author things it makes sense to have them >> in the dtsi. > > I don't think they are usually logical, although they probably might be > in some cases. The endpoint nodes are supposed to be logical, they just group properties describing a port's configuration. > As I see it, a "port" is a group of pins in a hardware component, and > two endpoints define a connection between two ports, which on the HW > level are the wires between the ports. > > So a port with two endpoints is a group of pins, with wires that go from > the same pins to two different components. It could be approximated like this, but I don't think it is needed. I would rather stay with only port nodes mapped to hardware and the endpoint nodes logical. -- Regards, Sylwester -- 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