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Thu, 21 Jul 2022 07:22:39 -0700 From: Vidya Sagar To: , , , , , , , CC: , , , , , , , , , Subject: [PATCH V6 14/16] PCI: tegra194: Fix link up retry sequence Date: Thu, 21 Jul 2022 19:50:50 +0530 Message-ID: <20220721142052.25971-15-vidyas@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220721142052.25971-1-vidyas@nvidia.com> References: <20220721142052.25971-1-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 34d71983-6a80-414a-993f-08da6b247b85 X-MS-TrafficTypeDiagnostic: MN2PR12MB3375:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:12.22.5.238;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(13230016)(4636009)(39860400002)(346002)(136003)(376002)(396003)(46966006)(40470700004)(36840700001)(186003)(47076005)(8676002)(478600001)(4326008)(2616005)(336012)(426003)(8936002)(6666004)(83380400001)(82310400005)(36756003)(7696005)(41300700001)(26005)(81166007)(356005)(5660300002)(54906003)(1076003)(2906002)(40480700001)(4744005)(36860700001)(82740400003)(110136005)(70206006)(70586007)(316002)(7416002)(86362001)(40460700003)(36900700001)(2101003);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jul 2022 14:22:46.0600 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 34d71983-6a80-414a-993f-08da6b247b85 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.238];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT061.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB3375 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the missing DLF capability offset while clearing DL_FEATURE_EXCHANGE_EN bit during link up retry. Fixes: 56e15a238d92 ("PCI: tegra: Add Tegra194 PCIe support") Signed-off-by: Vidya Sagar --- V6: * New addition in V6 based on Bjorn's review comment drivers/pci/controller/dwc/pcie-tegra194.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index 39f7ae61fdc6..bac2e1ad0a29 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -967,7 +967,7 @@ static int tegra_pcie_dw_start_link(struct dw_pcie *pci) offset = dw_pcie_find_ext_capability(pci, PCI_EXT_CAP_ID_DLF); val = dw_pcie_readl_dbi(pci, offset + PCI_DLF_CAP); val &= ~PCI_DLF_EXCHANGE_ENABLE; - dw_pcie_writel_dbi(pci, offset, val); + dw_pcie_writel_dbi(pci, offset + PCI_DLF_CAP, val); tegra_pcie_dw_host_init(pp); dw_pcie_setup_rc(pp); -- 2.17.1