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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 34F4EECAAD5 for ; Mon, 12 Sep 2022 07:06:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc: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=Xv5cY8Gpt8kP92hddn3He28+E9AaYyciXYcqSHCW47U=; b=cXgf6VF3ebJqPn wzoA2T25qPlMySFLjiAabkp6tjBtoSL4R5gAzEoVF+bRSNfrjqvCJxTIUxpICiB7Z80GB/a7sOp6F 6u3fpUm4uIjw2DK+d04dNpOYhQEo2Bsnwjk50aeK4lLXrnVRoC5H92TqaTA4KiSDE1zfUQ/htkmT2 Kd2qGDMvUp70shzdd7+/KjgJVW/rjfYI0ybWEYlupEsKM5ui/YYB3/p6jAvjFdkHhijdDD/rzyizv J9WHQth4sQtMq2NB3Ho7fDQEqa7vKyd3bGfRvZNortsTNREcT4fBcwJ5wiPKPB82tdveOsa1xQFGT qPqeoDpKebqkSNY4+zLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oXdVa-007NdP-WC; Mon, 12 Sep 2022 07:05:31 +0000 Received: from mail-ej1-x629.google.com ([2a00:1450:4864:20::629]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oXdVW-007NbI-HL for linux-arm-kernel@lists.infradead.org; Mon, 12 Sep 2022 07:05:28 +0000 Received: by mail-ej1-x629.google.com with SMTP id dv25so17903172ejb.12 for ; Mon, 12 Sep 2022 00:05:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lixom-net.20210112.gappssmtp.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date; bh=Kf+FkOZAH6AiTAa/Q5l98MlMhVQ6qbmRpLywVY10mCk=; b=PT7Vu5cz2P1peiG8JmLn2GwcbupWOSdW6QG2r2oxPQ66p/B3g9Xe5GZHDdeDDIKCC3 YUtV5XVdg/9N9GyN1gByyrJMERlxwo4VaUzUHAHbTvGYF1SANtCLm6FV9aemWBjHcr6U 4hfPm+2zW71DtHZ0i7l1Ip7jS8pLrLdia/E9I8QQCI5IC1Ww3HprBOt04cw5IGcXnH0F 3+nZ8CHDL1DWyvIPsap+GGjA9uCmcmoomUtQnnmhIJIPK74LBOYGUr3VSWMaLeKGdn8Y H0erMsBLzYk3vt4vbZMflE1rtGXWnvfvj6SYRQOidg60Sg1jwtv4bd46i7Nf42J4APau /JWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date; bh=Kf+FkOZAH6AiTAa/Q5l98MlMhVQ6qbmRpLywVY10mCk=; b=sZ1nDUF17nSm14/9I1DaavfXZ6hCh9eGyXa945zRJSpiPsCBDCIk+vb8OahS8tJ8Hn WfPDkTNn68tK9kjxhibCXJDzntAXD+PQel6xJLkf3MWZ9csGZ6nl/0QxWvjnz+Hys7aD Euryg9vUQhA+kPO4WgBWqeQzdgUXH7mTUce9U5speLfGy6bPdVWAu2xZb77rqWdLKt+p NzRWCiaLQ/nRg2BYMQqL00T5KQckNpM2Vr1+vi9qQe00syTuOjEbhjHKdibkEUkM1CEW In9HLMrEIvFvZGfFoSWcjRB9q6uGT9nEKw05TgZUQwx6MJC9+s/Lfr80jTgm72PE1erx g83A== X-Gm-Message-State: ACgBeo26sdobR24ZlNZat5OBqcfgqjsw1L28nQAVcMK8vz1Ou3GuvbY/ oFtoSndjSEigH6+3EQ/hNmrA+BU5m2sk4yv3H5ca+A== X-Google-Smtp-Source: AA6agR4juZkX/WWMyqANDFVwY1iR8lzXvuj5BbeRyk8aFY1KG7jPxHEziPtntEOXo4NBSAdqjxZweFWNo+JWMXWPtro= X-Received: by 2002:a17:907:1690:b0:77c:37be:2345 with SMTP id hc16-20020a170907169000b0077c37be2345mr4714757ejc.359.1662966322965; Mon, 12 Sep 2022 00:05:22 -0700 (PDT) MIME-Version: 1.0 References: <20220817202538.21493-1-leoyang.li@nxp.com> <20220817202538.21493-2-leoyang.li@nxp.com> In-Reply-To: <20220817202538.21493-2-leoyang.li@nxp.com> From: Olof Johansson Date: Mon, 12 Sep 2022 00:05:11 -0700 Message-ID: Subject: Re: [PATCH v4 1/2] arm64: dts: lx2160a: update PCIe nodes to match rev2 silicon To: Li Yang Cc: shawnguo@kernel.org, devicetree@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Hou Zhiqiang X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220912_000526_835380_5A6F00F2 X-CRM114-Status: GOOD ( 11.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, On Wed, Aug 17, 2022 at 1:26 PM Li Yang wrote: > > The original dts was created based on the non-production rev1 silicon > which was only used for evaluation. Update the PCIe nodes to align with > the different controller used in production rev2 silicon. How can I confirm what version of silicon I have on a system? My non-evaluation commercially purchased system (HoneyComb LX2K) has: # cat /sys/bus/soc/devices/soc0/revision 1.0 And I will be really grumpy if this system stops working. It's what I use to do all my maintainer work, even if that's been fairly dormant this year. It's overall setting off red flags to update an in-place devicetree to a "new revision" of silicon instead of adding a new DT for said revision. 2160A has been on the market for several years, so it just seems odd to all of the sudden retroactively make things non-backwards-compatible. -Olof -Olof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel