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=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT 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 C0B06C32756 for ; Mon, 12 Aug 2019 04:22:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 89B0D208C2 for ; Mon, 12 Aug 2019 04:22:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="IlRoB9lz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726756AbfHLEWU (ORCPT ); Mon, 12 Aug 2019 00:22:20 -0400 Received: from mail-eopbgr40052.outbound.protection.outlook.com ([40.107.4.52]:41425 "EHLO EUR03-DB5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725854AbfHLEWU (ORCPT ); Mon, 12 Aug 2019 00:22:20 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=VRVRyClPNyDd8bqcZWYZrwzZ8dMAbs5ZyB6KgUB/og0BiwnhOvxkHv986G3kYHV/EsoeVFFdIYdfYqneMqHLkNoOXICpmknosGV9NmJbAYbgiJGqo4n9qJzGYvh1dNwEE3MxQ6Wkik/u5PJ9snwtUwkLNA8RO6GU/ra8zvgEGOFozBvBshBZFuO4BaJmc/vD8SC5o/sS0qknRiYqtdt7MqIpwcX1uhW7A8Viryj5j3s+i1/xI7NI4j3nrIeIicMRWtX4FqVrA5Jpy6gnMgepPPuQJP5Kb/4vkX1HhBZwjnfU0eAJqcGfF0SLA3uj83WtLUQ2lu3DwILoLiJUhrRdpw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=KKR+Bq+eBm7trp5DLBa1GKo6NJwsHMnldT+3tag/Ya4=; b=LjdBCk8/C8NwveyxWvULvBvveXF7+aUqN0w4UZHMu4dApdVxVlTj8oVAUOyQcnna2hBZIPlIQP5LXkGtpNATUbi2mEh9eXe1pfTG5BzFLpU3xeB1RlTD+NbMEp5gtqWtN5SIcSFRcK48K/giDfmJiZPgbKKyaH6MJ37RxqIbT1nqly3hIz2EY+y+PytfRJoYa36eDHRk6PBBQnF1EExFKY1O0WbY70EZ6W2mEebfUwpxOqIkdtCIjbzXD0R7RowyyeFMZ7D2vrkODQ9W0N4Sf4/EZECtUV0pcQZU2Y24Z8RENj65FV6MVD0ETZSV8Xhwf/Uca9yvKJG8Ua2/U9FbLQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=KKR+Bq+eBm7trp5DLBa1GKo6NJwsHMnldT+3tag/Ya4=; b=IlRoB9lzz7vIjnv7QpuGR8Ffb7HSFTZ0eMK4LChU14gRlaiA8WcVKVQUuGkzzWaV4GEo1DXyTtIQdhNWce4I5FK8+vxA2Cm8eSsGt9fddjjgDaZBLlGeIyyv4xe20EovE3T2K4jTSzCYdEiXvprcDlicpJMCtAWfeSGYNQee5S8= Received: from DB8PR04MB6747.eurprd04.prod.outlook.com (20.179.250.159) by DB8PR04MB5931.eurprd04.prod.outlook.com (20.179.11.140) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2157.23; Mon, 12 Aug 2019 04:22:12 +0000 Received: from DB8PR04MB6747.eurprd04.prod.outlook.com ([fe80::19ec:cddf:5e07:37eb]) by DB8PR04MB6747.eurprd04.prod.outlook.com ([fe80::19ec:cddf:5e07:37eb%3]) with mapi id 15.20.2157.015; Mon, 12 Aug 2019 04:22:12 +0000 From: "Z.q. Hou" To: "linux-pci@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "gustavo.pimentel@synopsys.com" , "jingoohan1@gmail.com" , "bhelgaas@google.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , Leo Li , "lorenzo.pieralisi@arm.com" CC: "M.h. Lian" , "Z.q. Hou" Subject: [PATCH 0/4] Layerscape: Remove num-lanes property from PCIe nodes Thread-Topic: [PATCH 0/4] Layerscape: Remove num-lanes property from PCIe nodes Thread-Index: AQHVUMWDCaTFip+5o0aBISlIjqAbjA== Date: Mon, 12 Aug 2019 04:22:11 +0000 Message-ID: <20190812042435.25102-1-Zhiqiang.Hou@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK0PR03CA0060.apcprd03.prod.outlook.com (2603:1096:203:52::24) To DB8PR04MB6747.eurprd04.prod.outlook.com (2603:10a6:10:10b::31) authentication-results: spf=none (sender IP is ) smtp.mailfrom=zhiqiang.hou@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.17.1 x-originating-ip: [119.31.174.73] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: e9a45e35-35d6-496a-1d70-08d71edca58d x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600148)(711020)(4605104)(1401327)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020);SRVR:DB8PR04MB5931; x-ms-traffictypediagnostic: DB8PR04MB5931: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7691; x-forefront-prvs: 012792EC17 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(346002)(136003)(376002)(39860400002)(396003)(366004)(189003)(199004)(6436002)(256004)(25786009)(66476007)(66556008)(66946007)(50226002)(2616005)(476003)(64756008)(186003)(486006)(6486002)(66066001)(66446008)(53936002)(7416002)(71190400001)(6512007)(71200400001)(2501003)(8936002)(4326008)(8676002)(6116002)(3846002)(52116002)(110136005)(54906003)(305945005)(7736002)(1076003)(81166006)(81156014)(86362001)(5660300002)(14454004)(26005)(478600001)(36756003)(2201001)(2906002)(386003)(6506007)(102836004)(99286004)(316002)(921003)(1121003);DIR:OUT;SFP:1101;SCL:1;SRVR:DB8PR04MB5931;H:DB8PR04MB6747.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: EftrESN0ZBFXUwDQImCrXHRWp2MRPKYCmJ9mTpV0qDNsGVwU9MuNuXTTqt6j9Lrr03KrUPj/oJBd0sZjJTS6xPuYpL1bMAQYECeKUaECgTWjNd/UKwOlrWveqeszJqbavx+jfajKuefL4J9NqR9FqhRhNiP+PcjXejgyIXbUjWw0NE5HQfSFRfNTH/jtD/jDvgmQonPz/YmipNLtWIpkGijJXNMmPcB9R4ECSoEUxli5pYxoQY9noGUlpjUQahV4UODAp0WlfacWwEF86DfOZTCz3FfXau1rAP8p1YdlZf0+Wr6F49sFCIJHxQND3iB7NOQdRzzT7Ic6qfvZHpko+l80pY8zP4zZyC35l7at79Dl28cQCfpnP5C/nfgBHFrZ0pjzcbdg3TVa17Fu1CwiClEx9I8mCmGGnfZk7FKrxM4= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: e9a45e35-35d6-496a-1d70-08d71edca58d X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Aug 2019 04:22:11.8839 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 8xoNSwBt0LH3q4ZZJchHjCGMu/g1q5SJWz6SlaKTW4lx3Q1U+wooDzdH+g//qX0pg0ceqnjc9L1KqVaw+GCrTA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR04MB5931 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hou Zhiqiang On FSL Layerscape SoCs, the number of lanes assigned to PCIe controller is not fixed, it is determined by the selected SerDes protocol. The current num-lanes indicates the max lanes PCIe controller can support up to, instead of the lanes assigned to the PCIe controller. This can result in PCIe link training fail after hot-reset. Hou Zhiqiang (4): dt-bingings: PCI: Remove the num-lanes from Required properties PCI: dwc: Return directly when num-lanes is not found ARM: dts: ls1021a: Remove num-lanes property from PCIe nodes arm64: dts: fsl: Remove num-lanes property from PCIe nodes Documentation/devicetree/bindings/pci/designware-pcie.txt | 1 - arch/arm/boot/dts/ls1021a.dtsi | 2 -- arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi | 1 - arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 3 --- arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 6 ------ arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 3 --- arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 4 ---- drivers/pci/controller/dwc/pcie-designware.c | 6 ++++-- 8 files changed, 4 insertions(+), 22 deletions(-) --=20 2.17.1