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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" , "andrew.murray@arm.com" CC: "M.h. Lian" , "Z.q. Hou" Subject: [PATCHv2 0/4] Layerscape: Remove num-lanes property from PCIe nodes Thread-Topic: [PATCHv2 0/4] Layerscape: Remove num-lanes property from PCIe nodes Thread-Index: AQHVVyjhmu2LPC3sb0qsw8uoz54tEA== Date: Tue, 20 Aug 2019 07:28:37 +0000 Message-ID: <20190820073022.24217-1-Zhiqiang.Hou@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK0P153CA0030.APCP153.PROD.OUTLOOK.COM (2603:1096:203:17::18) 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: 04e405a3-012b-4fa4-f271-08d7254003f7 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:DB8PR04MB5627; x-ms-traffictypediagnostic: DB8PR04MB5627: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7691; x-forefront-prvs: 013568035E x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(376002)(346002)(396003)(366004)(39860400002)(136003)(199004)(189003)(2616005)(4326008)(6512007)(1076003)(66446008)(66476007)(476003)(99286004)(66066001)(6436002)(478600001)(71200400001)(81156014)(66946007)(71190400001)(52116002)(66556008)(54906003)(110136005)(81166006)(7736002)(14454004)(305945005)(8676002)(316002)(8936002)(7416002)(25786009)(3846002)(6486002)(486006)(256004)(64756008)(53936002)(86362001)(386003)(186003)(6506007)(6116002)(2906002)(5660300002)(2501003)(102836004)(26005)(2201001)(36756003)(50226002)(921003)(1121003);DIR:OUT;SFP:1101;SCL:1;SRVR:DB8PR04MB5627;H:DB8PR04MB6747.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX: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: 5hgh0R8tpv+OnQGXVVfVPZqAon/7Xboiu2wOOgql+LdAeS+EgoamdWHAlOYcdGLNRQiE9GazVHGmDAH2V+0jcKUpiltqGfPSSNqylLYqu9kUW9ob+sSTLN9NaZq2v9VFFg1xEo3opj1ti8WYV8hZPejeJ/QweCsI/xhY6fAd9n4RkmS9QpZ+9bETcznbjcadHZx9j88Ia2TuTk/976ZdsGAz+MmDU5StWnTeFc1dlSgKH2+4XLg8OQ9pzZ5+RSDvaV7dc5FAsuGphLBgc3tWkAj3xwIwjBTSiGjYgdHoBZZyc4jioUF43R60AmRs/p8oXpAZSeuo+5e/OBJew/nyhqwblm4bNmU0IyAKQOLEE32eVaeSlOLRyWhkhoZiSKfxYaCetWK+A2SBb13B8U6s7b+q9lel4qh3eJkV5Og+MB8= 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: 04e405a3-012b-4fa4-f271-08d7254003f7 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Aug 2019 07:28:37.6357 (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: USiXkc+N0Z27fyTsoY+DUNCBFjRf3fMTBf38fPyGW4xq+x6msn9EtBRPl7KfCacmW9feQs0KV2osDy0g0Qs2ow== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR04MB5627 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-bindings: PCI: designware: 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