From patchwork Tue Nov 20 09:26:50 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Z.Q. Hou" X-Patchwork-Id: 10690059 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E18B414BD for ; Tue, 20 Nov 2018 09:26:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D2B982A0D5 for ; Tue, 20 Nov 2018 09:26:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C73392A197; Tue, 20 Nov 2018 09:26:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 648D02A0D5 for ; Tue, 20 Nov 2018 09:26:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727974AbeKTTzD (ORCPT ); Tue, 20 Nov 2018 14:55:03 -0500 Received: from mail-eopbgr80073.outbound.protection.outlook.com ([40.107.8.73]:11604 "EHLO EUR04-VI1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727477AbeKTTzC (ORCPT ); Tue, 20 Nov 2018 14:55:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=IjcSXw7tHNyA93XfqGn65Uz6dkglRFYQIp/PtgEylDk=; b=ExBx9BV1Bkf8QGnMxXpaEkmrEejZdb6h0LSI6gdJDP53aL+22L6BexzY+rkCwi2Tzt8GIiP7s7Bc+6yvwcTn2JlqJjrkkitM3SxVBibUZp4p8RksuIOab89BwHJOiPHT1cJpElmRsw0eZs+G/5IsOLLKLUW6Z5xLN1qZDoKzVXE= Received: from AM6PR04MB5781.eurprd04.prod.outlook.com (20.179.2.80) by AM6PR04MB5269.eurprd04.prod.outlook.com (20.177.35.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1339.21; Tue, 20 Nov 2018 09:26:50 +0000 Received: from AM6PR04MB5781.eurprd04.prod.outlook.com ([fe80::29b5:b3ed:3854:cf1c]) by AM6PR04MB5781.eurprd04.prod.outlook.com ([fe80::29b5:b3ed:3854:cf1c%4]) with mapi id 15.20.1339.026; Tue, 20 Nov 2018 09:26:50 +0000 From: "Z.q. Hou" To: "linux-pci@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "bhelgaas@google.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "l.subrahmanya@mobiveil.co.in" , "shawnguo@kernel.org" , Leo Li , "lorenzo.pieralisi@arm.com" , "catalin.marinas@arm.com" , "will.deacon@arm.com" CC: Mingkai Hu , "M.h. Lian" , Xiaowei Bao , "Z.q. Hou" Subject: [PATCHv2 12/25] PCI: mobiveil: move out the link up waiting from mobiveil_host_init Thread-Topic: [PATCHv2 12/25] PCI: mobiveil: move out the link up waiting from mobiveil_host_init Thread-Index: AQHUgLMquEOAt+rjOkCT2d13q//Fpw== Date: Tue, 20 Nov 2018 09:26:50 +0000 Message-ID: <20181120092615.11680-13-Zhiqiang.Hou@nxp.com> References: <20181120092615.11680-1-Zhiqiang.Hou@nxp.com> In-Reply-To: <20181120092615.11680-1-Zhiqiang.Hou@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK2PR03CA0050.apcprd03.prod.outlook.com (2603:1096:202:17::20) To AM6PR04MB5781.eurprd04.prod.outlook.com (2603:10a6:20b:aa::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=zhiqiang.hou@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [119.31.174.73] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;AM6PR04MB5269;6:AWQ1sYEk2nm5xqfqW30Ocpj2Fbkl4++aKn1ilMFY44NCdj5BUYCe+a8eAD8e6HmqPLB3OWG5R66/e4NngdOrisLt+uIzVyFwg94XVH9i9AzE8VCb2ndFQBsD9QL6h0GvzuZJqDPDNyJAI1PCzWlmQ+toFKDMZUABDKFxnTqALrNTxk7OWgOL8todNxow4ZT9iCr3zFCHMcAxe0aT0+37hZtxOje1HVPjrfKXblocA95SgyazkmZrZyyYi+dp+xD1Nbw4S2lHRfXYytbW9Za4eE0U/0twyygSgyL7ZUUYMxoJR1ma4GzMnK64fCE2f1o4X+yVL691JahddKCr6KrCILwkT0InnJT39817Fu4OHFMVDOCAmz5gC5yCQUsTVXWfNDHyoSynnlZ8QQmOXkpnB1EF0NNgpmcCmGTNTmdy83JxMnm+6vyv4T+VtEfcGllRZKXVphI4VZyQ/H0u8FtuCw==;5:0zYA2CLN12GAnIWzPzs2Imo6umMMsYt9wuknQCMJtdc6PxJ16q5yQ8ru7tAA/Y+YiWf7zIzNCtaPDOugGhJd6NXA5GRlDm+4qSZ3ogGXV59lvCqpjMc8TcrWqnuEl+uKhwOMlcniYN1NQyxcUMAlR0fpySz4EaHps3eT87AmKog=;7:GGDFdKhoVqw1r5mwx1d35Keo0qeeYWMw1zwiwgTsP2JNYdbmlZWipFycRX/kZWF3V3446+HHYOFga6F1Wog3VYsJIRz5v7CKGt+9EKPkNeUn1Fe0zkGG+C/J1rlq/lu/wQHNTYD3fJOfd791e4pBOQ== x-ms-office365-filtering-correlation-id: 9ddd7237-d838-483c-13fe-08d64eca4ce4 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390098)(7020095)(4652040)(8989299)(5600074)(711020)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7153060)(7193020);SRVR:AM6PR04MB5269; x-ms-traffictypediagnostic: AM6PR04MB5269: x-microsoft-antispam-prvs: x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(6040522)(2401047)(5005006)(8121501046)(3231442)(944501410)(52105112)(3002001)(10201501046)(93006095)(93001095)(6055026)(148016)(149066)(150057)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123558120)(20161123564045)(20161123560045)(20161123562045)(201708071742011)(7699051)(76991095);SRVR:AM6PR04MB5269;BCL:0;PCL:0;RULEID:;SRVR:AM6PR04MB5269; x-forefront-prvs: 08626BE3A5 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(346002)(376002)(136003)(396003)(366004)(39860400002)(189003)(199004)(305945005)(7736002)(36756003)(5660300001)(7416002)(68736007)(2906002)(4326008)(8936002)(14454004)(256004)(54906003)(53936002)(6436002)(71200400001)(110136005)(71190400001)(6512007)(316002)(2616005)(476003)(446003)(11346002)(486006)(25786009)(2501003)(2201001)(86362001)(52116002)(76176011)(6506007)(102836004)(386003)(186003)(106356001)(26005)(2900100001)(81156014)(81166006)(105586002)(6486002)(8676002)(99286004)(66066001)(6116002)(3846002)(1076002)(478600001)(97736004)(921003)(1121003);DIR:OUT;SFP:1101;SCL:1;SRVR:AM6PR04MB5269;H:AM6PR04MB5781.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-microsoft-antispam-message-info: 5Sg+Aqf1ka9dH012De7b6HhvhDgBxwHr5Yun5/6RW6zftUjFYOQbODpPKmt+cLdwOqsF5DWXa2XzdWyuYf9nTe+ZquTVgPIcaB9HxHIpS90mq55Zc5zfOduFF8B5tjwciJvpJOj3PGSYIZNqILamkLU7w+c44K+Q3nqBYoBA2S0uy98wb62hFSnCRb8jCXAWlGL3h7JK3ghfYWf6sBKQJ2lR/DryFjMTgNQDIG07PWtFZjo0kEO01512SsomLalsgcL6QE2MLXtGMC/rZzsUP69oUXnXie66DNaUgSyK4nDPbaNsc53RO1XBZktz+no940LZPXeI+krApvJShCt6iDRT4b7Dtu/Pcysd/ein5gQ= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9ddd7237-d838-483c-13fe-08d64eca4ce4 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Nov 2018 09:26:50.2379 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR04MB5269 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Hou Zhiqiang Host initial sequence does not depend on PCIe link up, so move it to the place just before the enumeration. Signed-off-by: Hou Zhiqiang reviewed-by: Minghuan Lian --- V2: - no change drivers/pci/controller/pcie-mobiveil.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index 8eee1ab7ee24..c2848c22b466 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -582,15 +582,8 @@ static void mobiveil_pcie_enable_msi(struct mobiveil_pcie *pcie) static int mobiveil_host_init(struct mobiveil_pcie *pcie) { u32 value, pab_ctrl, type; - int err; struct resource_entry *win; - err = mobiveil_bringup_link(pcie); - if (err) { - dev_info(&pcie->pdev->dev, "link bring-up failed\n"); - return err; - } - /* * program Bus Master Enable Bit in Command Register in PAB Config * Space @@ -662,7 +655,7 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie) /* setup MSI hardware registers */ mobiveil_pcie_enable_msi(pcie); - return err; + return 0; } static void mobiveil_mask_intx_irq(struct irq_data *data) @@ -922,6 +915,12 @@ static int mobiveil_pcie_probe(struct platform_device *pdev) bridge->map_irq = of_irq_parse_and_map_pci; bridge->swizzle_irq = pci_common_swizzle; + ret = mobiveil_bringup_link(pcie); + if (ret) { + dev_info(dev, "link bring-up failed\n"); + goto error; + } + /* setup the kernel resources for the newly added PCIe root bus */ ret = pci_scan_root_bus_bridge(bridge); if (ret)