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{ "id": 2194327, "url": "http://patchwork.ozlabs.org/api/covers/2194327/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-tegra/cover/20260208180746.2024338-1-mmaddireddy@nvidia.com/", "project": { "id": 21, "url": "http://patchwork.ozlabs.org/api/projects/21/?format=api", "name": "Linux Tegra Development", "link_name": "linux-tegra", "list_id": "linux-tegra.vger.kernel.org", "list_email": "linux-tegra@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260208180746.2024338-1-mmaddireddy@nvidia.com>", "list_archive_url": null, "date": "2026-02-08T18:07:33", "name": "[V5,00/13] Fixes to pcie-tegra194 driver", "submitter": { "id": 72399, "url": "http://patchwork.ozlabs.org/api/people/72399/?format=api", "name": "Manikanta Maddireddy", "email": "mmaddireddy@nvidia.com" }, "mbox": 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<thierry.reding@gmail.com>, <jonathanh@nvidia.com>,\n\t<jingoohan1@gmail.com>, <vidyas@nvidia.com>, <cassel@kernel.org>,\n\t<18255117159@163.com>", "CC": "<linux-pci@vger.kernel.org>, <devicetree@vger.kernel.org>,\n\t<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>, \"Manikanta\n Maddireddy\" <mmaddireddy@nvidia.com>", "Subject": "[V5,00/13] Fixes to pcie-tegra194 driver", "Date": "Sun, 8 Feb 2026 23:37:33 +0530", "Message-ID": "<20260208180746.2024338-1-mmaddireddy@nvidia.com>", "X-Mailer": "git-send-email 2.34.1", "Precedence": "bulk", "X-Mailing-List": "linux-tegra@vger.kernel.org", "List-Id": "<linux-tegra.vger.kernel.org>", "List-Subscribe": "<mailto:linux-tegra+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-tegra+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "X-NVConfidentiality": "public", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "rnnvmail203.nvidia.com (10.129.68.9) To\n rnnvmail201.nvidia.com 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190e6482-26a2-4376-acb4-08de673d0a73", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n\tSJ1PEPF000023D9.namprd21.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "MW4PR12MB8611" }, "content": "This series[1] was originally posted by Vidya Sagar, and I have rebased\nit onto 6.19.0-rc6-next. I addressed review comments and split this into\ntwo series, one for fixes(current) and the other is for enhancements.\nI verified these patches on Jetson AGX Orin(Tegra234 SoC).\n\nI added below four new patches to fix bugs, commit message of each\npatch has the details on the bug and fix.\n - PCI: tegra194: Use HW version number\n - PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on\n - PCI: tegra194: Disable PERST IRQ only in Endpoint mode \n\nRest of the patches are same as the original V3 series, just rebased them on\n6.19.0-rc6-next.\n\nVerification details.\n - I verified both Root port and Endpoint mode controllers on Tegra234 SoC.\n - Basic sanity Link up, configuration space access and BAR access are verified.\n - I verified that ASPM L1.2 capability is disabled for Endpoint mode.\n - I verified suspend to RAM tests with Endpoint mode.\n\n[1] https://patchwork.kernel.org/project/linux-pci/patch/20221013183854.21087-1-vidyas@nvidia.com/\n\nManikanta Maddireddy (3):\n PCI: tegra194: Use HW version number\n PCI: tegra194: Fix CBB timeout caused by DBI access before core\n power-on\n PCI: tegra194: Disable PERST IRQ only in Endpoint mode\n\nVidya Sagar (10):\n PCI: tegra194: Fix polling delay for L2 state\n PCI: tegra194: Refactor LTSSM state polling on surprise down\n PCI: tegra194: Don't force the device into the D0 state before L2\n PCI: tegra194: Free up EP resources during remove()\n PCI: tegra194: Disable direct speed change for EP\n PCI: tegra194: Use devm_gpiod_get_optional() to parse\n \"nvidia,refclk-select\"\n PCI: tegra194: Apply pinctrl settings for both PCIe RP and EP\n PCI: tegra194: Free resources during controller deinitialization\n PCI: tegra194: Allow system suspend when the Endpoint link is not up\n PCI: tegra194: Set LTR message request before PCIe link up\n\n drivers/pci/controller/dwc/pcie-designware.c | 2 +-\n drivers/pci/controller/dwc/pcie-designware.h | 2 +\n drivers/pci/controller/dwc/pcie-tegra194.c | 191 +++++++++----------\n 3 files changed, 95 insertions(+), 100 deletions(-)" }