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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 27626C35640 for ; Fri, 21 Feb 2020 10:15:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F1B8A24650 for ; Fri, 21 Feb 2020 10:15:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XhdrMifD" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F1B8A24650 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=v5/zvuf5WqVf9PQi5p6nebkpgANjlOkmL6wREA4bXFg=; b=XhdrMifDwXf7qH fNVwKML4pMOSpr3d1WDDH0iCsHycIwKwmJJPDXHFzPr6SZqfEAFiHf9oHAW8Pc1cPRDyGEHgR1I9z V862mJhV9svX3j1/liDAAPj/wCGccjGbpyspvlSpTrNtQxLC9RaKHErEdnm+ydPvhiG8aJRZwscRQ DUHxTKCVwR5KCGq1HC7gImZHC4ytn+gy9Pe7fTMC/MqSphGiIe35HdALyA+/Rx9aAnoJJQ9gwghW/ i0+KP4EXWH2zgoAvs2DQdCCHbRxzMN90z7NuHT1d+4u1imITwCtUupNZxJjtuZwt2/laPkvvrHjoW kGpChtHyUOZzK9qaXD5Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j55L4-0004jb-Mx; Fri, 21 Feb 2020 10:15:18 +0000 Received: from mail-oi1-f196.google.com ([209.85.167.196]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j55L2-0004j2-7U for linux-i3c@lists.infradead.org; Fri, 21 Feb 2020 10:15:17 +0000 Received: by mail-oi1-f196.google.com with SMTP id i1so1067893oie.8 for ; Fri, 21 Feb 2020 02:15:16 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Nm8XPNj2T3vUB6cqjEXZ7nGfKAwujbY0F04qFgjkmjQ=; b=lC+c1sm2W5HLR3iWjy3E+JMG4EaGFKwQrkcKb3JiXM8UEdmAaaUuCewvly4cEH63qS qD+FDSJ7+GSHM2sA/JB1g+AYRGBrrgjmnm5I51NRQSzdy/JhY99IIXRvPnZJjz5hjU7e HQ125Dr0j9Z4tki0GGWEuvzJHrr5KiTsn3ZXlPtI/La2tXO0yZV1CMW56BhxUl8wEYud 56VqXeENLrevFimfXl34gqi57xGtn4YgGUzSi88lrOsZZsHQh5bUOpdpz73iEEXeFt0W +HBQdqMVzketkS3LWbOhaH755iFPOIHe4SUyUuDyf3VqNOYrYMqO2YMaZU4C87bSzVb8 ZXSg== X-Gm-Message-State: APjAAAXxMc3v9vMr7TLLKJNNHEaVTptmy8m8Y53LeALzShIUStP8D/8z XopoeW2LTOYccWbvqwXKH0QCYcixrRboXRG/XME= X-Google-Smtp-Source: APXvYqz7WikUrMhKLOm0sNqPcWz6d/IUuDU0jmDC9Xjm9FDq7/MpI0yqLXOdcKkSOPan01jsEb1TTlk2L7zVqUGNO5k= X-Received: by 2002:aca:c4d2:: with SMTP id u201mr1394043oif.54.1582280115669; Fri, 21 Feb 2020 02:15:15 -0800 (PST) MIME-Version: 1.0 References: <20200220172403.26062-1-wsa+renesas@sang-engineering.com> In-Reply-To: <20200220172403.26062-1-wsa+renesas@sang-engineering.com> From: Geert Uytterhoeven Date: Fri, 21 Feb 2020 11:15:04 +0100 Message-ID: Subject: Re: [RFC PATCH 0/7] i2c: of: reserve unknown and ancillary addresses To: Wolfram Sang X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200221_021516_273580_37BE90B0 X-CRM114-Status: GOOD ( 10.17 ) X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Kieran Bingham , Linux Kernel Mailing List , Jacopo Mondi , Vladimir Zapolskiy , Linux-Renesas , Luca Ceresoli , Linux I2C , =?UTF-8?Q?Niklas_S=C3=B6derlund?= , linux-i3c@lists.infradead.org, Laurent Pinchart Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org Hi Wolfram, On Thu, Feb 20, 2020 at 6:26 PM Wolfram Sang wrote: > One outcome of my dynamic address assignment RFC series[1] was that we > need a way to describe an I2C bus in DT fully. This includes unknown > devices and devices requiring multiple addresses. This series implements > that. > > Patches 1+2 do some preparational refactoring. After patch 3, we can > have child nodes with an address, but no compatible. Those addresses > will be marked busy now. They are handled by the dummy driver as well, > but named "reserved" instead of dummy. Patches 4+5 are again some > preparational refactoring. After patch 6, all addresses in a 'reg' array > are now blocked by the I2C core, also using the dummy driver but named > "reserved". So, we can have something like this: > > dummy@13 { Hence should that be "reserved@13"? > reg = <0x13>, <0x14>; > }; Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds _______________________________________________ linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c