From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84903C3A59E for ; Mon, 2 Sep 2019 20:48:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6653821897 for ; Mon, 2 Sep 2019 20:48:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727372AbfIBUsp (ORCPT ); Mon, 2 Sep 2019 16:48:45 -0400 Received: from sauhun.de ([88.99.104.3]:44050 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727183AbfIBUso (ORCPT ); Mon, 2 Sep 2019 16:48:44 -0400 Received: from localhost (p54B337C1.dip0.t-ipconnect.de [84.179.55.193]) by pokefinder.org (Postfix) with ESMTPSA id 367C82C0165; Mon, 2 Sep 2019 22:48:42 +0200 (CEST) Date: Mon, 2 Sep 2019 22:48:41 +0200 From: Wolfram Sang To: Luca Ceresoli Cc: linux-media@vger.kernel.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Mauro Carvalho Chehab , Rob Herring , Mark Rutland , Sakari Ailus , Hans Verkuil , Laurent Pinchart , Kieran Bingham , Jacopo Mondi , Vladimir Zapolskiy , Peter Rosin Subject: Re: [RFC,v2 3/6] media: dt-bindings: add DS90UB954-Q1 video deserializer Message-ID: <20190902204841.GB7253@kunai> References: <20190723203723.11730-1-luca@lucaceresoli.net> <20190723203723.11730-4-luca@lucaceresoli.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="nVMJ2NtxeReIH9PS" Content-Disposition: inline In-Reply-To: <20190723203723.11730-4-luca@lucaceresoli.net> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org --nVMJ2NtxeReIH9PS Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > + - i2c-alias-pool: list of I2C addresses that are known to be available on the > + "local" (SoC-to-deser) I2C bus; they will be picked at > + runtime and used as aliases to reach remove I2C chips After some internal discussion, I have been kinda convinced that it may be better to assume all non-described addresses are free to use and enter the pool. The problem with the binding above is that you may run out of aliases depending on how many aliases one to-be-attached module needs or how many modules will be attached. And another add-on module with non-repogrammable devices may occupy addresses from the defined pool above. I am not perfectly happy with the assumption that all undescribed addresses are automatically free. That also might need DTS updates to describe all clients properly. But this change only needs to be done once, and it will improve the description of the hardware. So, I could agree this is the better option of the two. --nVMJ2NtxeReIH9PS Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl1tgCkACgkQFA3kzBSg KbZMQQ//RpP2dX+xa9Yjy+mG8Yo5Ot+EZMlLQ5MflnJP9nZDui1leHVK/NdajRYu 3o+VDyfMhL3pA9HBN9aGSYAPT9M2lxv+btfQ6xGXV8yeqvreHVjb1Nt5u6QLfoxn cjTQSAes77cd8FgtMwtw52JeDBMJ3XZxy0VrEnwteG6MTVOzf6zPGwWH/j+SW6QC wsIGfTJEfQwn9SBRcHKrlLsTKua5BWyis78bN6xdnnBUoW7VtbTxsDAOYS5g5K1t FOU9mcw5XORab0mz7Khro+j9GaiAH6EQuKNpVq3w0zJr/+wqGfB+5tudArGpz0Jl hKJfpghYUElX60Q1v2A83iFO+VQ4toKbIdoJCZbqKf9f181/BJFQ2LlelVv2dGa+ 3Wl7bJYbzGgDgxzLXj6ef4nSwoIdc+3Ws4BwsBgYTIlrJyXYjR4/SstsZSysICgW 2vlYkpwJbEAmbtCRu2JsPrx1+CK5bkbvdU3bS9p/gk3RlUk/CmO2pL9dSERANYpL DMX/PSA8FVGOrvenhUoZ4LPdjm6EkvZzp/2fcFIMu2J88G4iG0+hPGzlPdI46Uzy 5uI6CBc2KQuGGyebs9CoJCJM8j8Vc5yxAXkOdjNap9oSKz9yACaw79F3GvEojgqX ObNivNSPA1l6gr3+PML4D6VwdYxAFcy+4T0y0QKemvUSKLkxBzU= =AIwW -----END PGP SIGNATURE----- --nVMJ2NtxeReIH9PS--