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GET /api/patches/2222598/?format=api
{ "id": 2222598, "url": "http://patchwork.ozlabs.org/api/patches/2222598/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260413071401.1151-3-jian.yang@mediatek.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260413071401.1151-3-jian.yang@mediatek.com>", "list_archive_url": null, "date": "2026-04-13T07:13:56", "name": "[2/2] PCI: mediatek-gen3: Add a shutdown callback to cotnrol PERST# signal", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5a213ac822ede04def15fa16cdef1f9b35ea2a59", "submitter": { "id": 85572, "url": "http://patchwork.ozlabs.org/api/people/85572/?format=api", "name": "Jian Yang", "email": "jian.yang@mediatek.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260413071401.1151-3-jian.yang@mediatek.com/mbox/", "series": [ { "id": 499653, "url": "http://patchwork.ozlabs.org/api/series/499653/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=499653", "date": "2026-04-13T07:13:55", "name": "PCI: mediatek-gen3: Fix the control timing of PERST#", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499653/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222598/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222598/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-52417-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=mediatek.com header.i=@mediatek.com header.a=rsa-sha256\n header.s=dk header.b=bINiSEyW;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; 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arc=none smtp.client-ip=60.244.123.138", "X-UUID": [ "5f3eb93a370811f1ae70033691e9ac7d-20260413", "5f3eb93a370811f1ae70033691e9ac7d-20260413" ], "DKIM-Signature": "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n d=mediatek.com; s=dk;\n\th=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From;\n bh=xfFRo0UHQusuMDmGKevH0yFYeubiKUgkDDCMUWqjD1Y=;\n\tb=bINiSEyWMudMogYpEeJHY9RajiFIFstwyJMpLFkiDDBafhPJ8jpXAjnTr6MMicU/oXl3yAnkLmtRmmV8DCwLVyqIiJzCSL9ZnQ/ny7wu5yycwMaybldajO0j8sGWeUb68vlT+GNiCZ1PnzEFOhuwT9HJnPVzCksf1P8r3khA7+o=;", "X-CID-P-RULE": "Release_Ham", "X-CID-O-INFO": "VERSION:1.3.12,REQID:c10eb28e-2a09-4397-a958-80539d315422,IP:0,U\n\tRL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION\n\t:release,TS:-5", "X-CID-META": "VersionHash:e7bac3a,CLOUDID:8cd5cb24-cb5c-4236-a89a-9a7fb20c9bc4,B\n\tulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102|836|865|888|898,TC:-5,Cont\n\tent:0|15|50,EDM:-3,IP:nil,URL:0,File:130,RT:0,Bulk:nil,QS:nil,BEC:-1,COL:0\n\t,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0", "X-CID-BVR": "2,SSN|SDN", "X-CID-BAS": "2,SSN|SDN,0,_", "X-CID-FACTOR": "TF_CID_SPAM_SNR", "X-CID-RHF": "D41D8CD98F00B204E9800998ECF8427E", "From": "Jian Yang <jian.yang@mediatek.com>", "To": "Matthias Brugger <matthias.bgg@gmail.com>,\n AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,\n Ryder Lee <ryder.lee@mediatek.com>,\n Lorenzo Pieralisi <lpieralisi@kernel.org>, =?utf-8?q?Krzysztof_Wilczy=C5=84?=\n\t=?utf-8?q?ski?= <kwilczynski@kernel.org>,\n Manivannan Sadhasivam <mani@kernel.org>, Rob Herring <robh@kernel.org>,\n Bjorn Helgaas <bhelgaas@google.com>", "CC": "<linux-pci@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,\n\t<linux-kernel@vger.kernel.org>,\n\t<Project_Global_Chrome_Upstream_Group@mediatek.com>,\n\t<jian.yang@mediatek.com>, <chuanjia.liu@mediatek.com>,\n\t<yonglong.wu@mediatek.com>", "Subject": "[PATCH 2/2] PCI: mediatek-gen3: Add a shutdown callback to cotnrol\n PERST# signal", "Date": "Mon, 13 Apr 2026 15:13:56 +0800", "Message-ID": "<20260413071401.1151-3-jian.yang@mediatek.com>", "X-Mailer": "git-send-email 2.46.0", "In-Reply-To": "<20260413071401.1151-1-jian.yang@mediatek.com>", "References": "<20260413071401.1151-1-jian.yang@mediatek.com>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain" }, "content": "Add a shutdown callback to control the timing of PERST# and power\nduring system shutdown, ensuring that the PERST#, as required by the\nPCIe CEM specification, is active before the power on connector is\nremoved.\n\nSigned-off-by: Jian Yang <jian.yang@mediatek.com>\n---\n drivers/pci/controller/pcie-mediatek-gen3.c | 9 +++++++++\n 1 file changed, 9 insertions(+)", "diff": "diff --git a/drivers/pci/controller/pcie-mediatek-gen3.c b/drivers/pci/controller/pcie-mediatek-gen3.c\nindex 58ba1aa35a22..4915979968b9 100644\n--- a/drivers/pci/controller/pcie-mediatek-gen3.c\n+++ b/drivers/pci/controller/pcie-mediatek-gen3.c\n@@ -1285,6 +1285,14 @@ static void mtk_pcie_remove(struct platform_device *pdev)\n \tmtk_pcie_irq_teardown(pcie);\n }\n \n+static void mtk_pcie_shutdown(struct platform_device *pdev)\n+{\n+\tstruct mtk_gen3_pcie *pcie = platform_get_drvdata(pdev);\n+\n+\tmtk_pcie_devices_power_down(pcie);\n+\tmtk_pcie_power_down(pcie);\n+}\n+\n static void mtk_pcie_irq_save(struct mtk_gen3_pcie *pcie)\n {\n \tint i;\n@@ -1423,6 +1431,7 @@ MODULE_DEVICE_TABLE(of, mtk_pcie_of_match);\n static struct platform_driver mtk_pcie_driver = {\n \t.probe = mtk_pcie_probe,\n \t.remove = mtk_pcie_remove,\n+\t.shutdown = mtk_pcie_shutdown,\n \t.driver = {\n \t\t.name = \"mtk-pcie-gen3\",\n \t\t.of_match_table = mtk_pcie_of_match,\n", "prefixes": [ "2/2" ] }