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GET /api/1.2/patches/2231932/?format=api
{ "id": 2231932, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2231932/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260501153553.66382-3-18255117159@163.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/1.2/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": "<20260501153553.66382-3-18255117159@163.com>", "list_archive_url": null, "date": "2026-05-01T15:35:53", "name": "[2/2] PCI: j721e: Set max_link_speed to enable 100 ms delay after link up", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "2d996c4331c269a6c509bb75160cb0a0c44cbf92", "submitter": { "id": 89937, "url": "http://patchwork.ozlabs.org/api/1.2/people/89937/?format=api", "name": "Hans Zhang", "email": "18255117159@163.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260501153553.66382-3-18255117159@163.com/mbox/", "series": [ { "id": 502476, "url": "http://patchwork.ozlabs.org/api/1.2/series/502476/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=502476", "date": "2026-05-01T15:35:53", "name": "PCI: cadence: Add 100 ms delay after link up for speeds > 5 GT/s", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502476/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2231932/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2231932/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-53583-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=163.com header.i=@163.com header.a=rsa-sha256\n header.s=s110527 header.b=jhTaH9fJ;\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; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-53583-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (1024-bit key) header.d=163.com header.i=@163.com\n header.b=\"jhTaH9fJ\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=220.197.31.5", "smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=163.com", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=163.com" ], "Received": [ "from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g6ZsR2XSHz1y04\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 02 May 2026 01:36:59 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 943EF300B577\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 1 May 2026 15:36:55 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id AB1B63CF68A;\n\tFri, 1 May 2026 15:36:54 +0000 (UTC)", "from m16.mail.163.com (m16.mail.163.com [220.197.31.5])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 8B6233CD8C2;\n\tFri, 1 May 2026 15:36:51 +0000 (UTC)", "from zhb.. (unknown [])\n\tby gzga-smtp-mtada-g0-3 (Coremail) with SMTP id\n _____wCH4HBbyPRpuOd_Cw--.58479S4;\n\tFri, 01 May 2026 23:35:57 +0800 (CST)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1777649814; cv=none;\n b=emkCZkAzxpn9N0wwAvQw0UOBemJv0ws5KBBBaDB8g+NenvWH4YIlWCrcM5XIecrnMh5mINE1Jz8RtVw7YPOysNElDit0nDhDuOrFIjy6wTUqOwn05S1sYE7Oll13dlGTpOpEF8TrVWHHYy9e0G6h25YU37w0G7PjmUD3Oalm0/Y=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777649814; c=relaxed/simple;\n\tbh=MKXEPVMRBKqTiNJKUbrmcfWXc+7QN5Gm1j7PsYVgCrs=;\n\th=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:\n\t MIME-Version;\n b=un36G8DDYmGshFvb1LVtpH6gtdzoPT/F9t/JdyY1vpMVMDU75q7YvkS0qUmdYVwF/nq+3s3iq2igpAKnIv0AJHAnKLpRaVHH//dBimqWKGqinK7X0PwZCaok0y81FuWELYSWfNELmC2nx2uNnbrMQm/4hANI2GvGKNNGIzOrNFY=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=163.com;\n spf=pass smtp.mailfrom=163.com;\n dkim=pass (1024-bit key) header.d=163.com header.i=@163.com\n header.b=jhTaH9fJ; arc=none smtp.client-ip=220.197.31.5", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com;\n\ts=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=rN\n\tqbrJ0nYBLUq7KvlneyDzlxeJd5FU1yTTH99vsr+/Q=; b=jhTaH9fJuQMA7ClBan\n\t6isFXXHBF+KQZ3ULwH/LZTlMhxuWnY7b69VbtYXw1ms6DwCLoOXM16vjgN83RsO6\n\tdfEqkMGjG/a8WtVugORKCiqmWRlAo60YBNu7mEqBlJ14RzamERpp5YeywwR7g2uv\n\tsKpPj6f3psu/bmGLG7w8t0SIc=", "From": "Hans Zhang <18255117159@163.com>", "To": "bhelgaas@google.com,\n\tlpieralisi@kernel.org,\n\tkwilczynski@kernel.org,\n\tmani@kernel.org,\n\tvigneshr@ti.com", "Cc": "robh@kernel.org,\n\ts-vadapalli@ti.com,\n\tlinux-omap@vger.kernel.org,\n\tlinux-arm-kernel@lists.infradead.org,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tHans Zhang <18255117159@163.com>", "Subject": "[PATCH 2/2] PCI: j721e: Set max_link_speed to enable 100 ms delay\n after link up", "Date": "Fri, 1 May 2026 23:35:53 +0800", "Message-Id": "<20260501153553.66382-3-18255117159@163.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260501153553.66382-1-18255117159@163.com>", "References": "<20260501153553.66382-1-18255117159@163.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", "X-CM-TRANSID": "_____wCH4HBbyPRpuOd_Cw--.58479S4", "X-Coremail-Antispam": "1Uf129KBjvJXoW7uF1xXry8try3ZF17tFy8AFb_yoW8Gr1Dpa\n\ty7GFWxG3WIqrW5uanrZ3W5XFyaqFn8J3y7GrZag3WxZFnxCr93JFyIqFyfJ3ySkF4kAF13\n\tA3Zrt342qr43tF7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n\t9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0zZg4U5UUUUU=", "X-CM-SenderInfo": "rpryjkyvrrlimvzbiqqrwthudrp/xtbC6x3ghGn0yF2uugAA3O" }, "content": "Set cdns_pcie.max_link_speed to the maximum supported link speed\n(obtained from the device tree property \"max-link-speed\") in\nj721e_pcie_set_link_speed(). This activates the post-link delay logic\nadded in cdns_pcie_host_wait_for_link() when the controller supports\nspeeds greater than 5 GT/s.\n\nAs required by PCIe r6.0 sec 6.6.1, and following the same approach as\ncommit 80dc18a0cba8d (\"PCI: dwc: Ensure that dw_pcie_wait_for_link()\nwaits 100 ms after link up\"), this ensures a 100 ms delay after link\ntraining completes before any Configuration Request is sent.\n\nSigned-off-by: Hans Zhang <18255117159@163.com>\n---\n drivers/pci/controller/cadence/pci-j721e.c | 1 +\n 1 file changed, 1 insertion(+)", "diff": "diff --git a/drivers/pci/controller/cadence/pci-j721e.c b/drivers/pci/controller/cadence/pci-j721e.c\nindex bfdfe98d5aba..ee85b8e04f5b 100644\n--- a/drivers/pci/controller/cadence/pci-j721e.c\n+++ b/drivers/pci/controller/cadence/pci-j721e.c\n@@ -206,6 +206,7 @@ static int j721e_pcie_set_link_speed(struct j721e_pcie *pcie,\n \t (pcie_get_link_speed(link_speed) == PCI_SPEED_UNKNOWN))\n \t\tlink_speed = 2;\n \n+\tpcie->cdns_pcie.max_link_speed = link_speed;\n \tval = link_speed - 1;\n \tret = regmap_update_bits(syscon, offset, GENERATION_SEL_MASK, val);\n \tif (ret)\n", "prefixes": [ "2/2" ] }