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GET /api/patches/2220051/?format=api
{ "id": 2220051, "url": "http://patchwork.ozlabs.org/api/patches/2220051/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-tegra/patch/20260406-tegra210-actmon-dt-fixup-v1-1-6b6149b76eaf@gmail.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": "<20260406-tegra210-actmon-dt-fixup-v1-1-6b6149b76eaf@gmail.com>", "list_archive_url": null, "date": "2026-04-06T06:39:18", "name": "arm64: tegra: Enable interconnect for MC and EMC on Tegra210", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "4772f01aaca203f018ab5dc21076372146c6840e", "submitter": { "id": 90344, "url": "http://patchwork.ozlabs.org/api/people/90344/?format=api", "name": "Aaron Kling via B4 Relay", "email": "devnull+webgeek1234.gmail.com@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-tegra/patch/20260406-tegra210-actmon-dt-fixup-v1-1-6b6149b76eaf@gmail.com/mbox/", "series": [ { "id": 498824, "url": "http://patchwork.ozlabs.org/api/series/498824/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-tegra/list/?series=498824", "date": "2026-04-06T06:39:18", "name": "arm64: tegra: Enable interconnect for MC and EMC on Tegra210", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498824/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2220051/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2220051/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-tegra+bounces-13569-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-tegra@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=mdYYCH4R;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; helo=sea.lore.kernel.org;\n envelope-from=linux-tegra+bounces-13569-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"mdYYCH4R\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from sea.lore.kernel.org (sea.lore.kernel.org [172.234.253.10])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fq06f41s1z1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 06 Apr 2026 16:39:22 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id D4820300052F\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 6 Apr 2026 06:39:20 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id A163C361DC8;\n\tMon, 6 Apr 2026 06:39:20 +0000 (UTC)", "from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\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 5E05935E923;\n\tMon, 6 Apr 2026 06:39:20 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPS id DBB99C4CEF7;\n\tMon, 6 Apr 2026 06:39:19 +0000 (UTC)", "from aws-us-west-2-korg-lkml-1.web.codeaurora.org\n (localhost.localdomain [127.0.0.1])\n\tby smtp.lore.kernel.org (Postfix) with ESMTP id CCC14EF4EAE;\n\tMon, 6 Apr 2026 06:39:19 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775457560; cv=none;\n b=j/tWjhQEeg+dPfCOxXulVjlr04El8vy3f2tU4ed9znILpUblN0v2CLNiBXWdvltnq8kTkCLEqDw1PrUH/tVa3lOcUb/8iI4J0xfsFNvhCrie0vYG265GPc1T7CYpu4AjNYvAexXt0VKoH9CIUb3xfrHycQf/aiDy22azyLN4O8o=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775457560; c=relaxed/simple;\n\tbh=rtujjDdRKaTE4jIqLF/2YN55iKCGGeVYc/RhEPogby4=;\n\th=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc;\n b=j1z7/yUiUMqcE9jW43i1pK8C5wjVj1p2EGG4XQz4820voNmbiMpWR3ricmT6EHZdsiIYNsEnzDBP0QfXkZgPPNk+/0aRnuvdBxW+tJng7NpEyZocqBo+JQ0xwdBNgJlCCtMPqOSjhKq9PSW4/rkGIYuIX/VkzFE4TqaTvHigBuE=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=mdYYCH4R; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1775457559;\n\tbh=rtujjDdRKaTE4jIqLF/2YN55iKCGGeVYc/RhEPogby4=;\n\th=From:Date:Subject:To:Cc:Reply-To:From;\n\tb=mdYYCH4ReG7NZHkgA3910aR0aRNQTuNI3YZKcnIFw/OgC9QmE3kQDUmVmvF2F3BQD\n\t NcMubMEVTcsz+qA1/JsxkMTtDJqBN5cLvlvR8knGne7Kf58Qz5ivrBIykwyqHGk5NK\n\t WBMNcKwtKLu5DKta33N3LGnOB6DbUQbuv6S953oHiXAuzdh3aa9G2CONa4erkhcTaa\n\t iISBw4+t9KNl38opZH/UusIEZfVcT65Pzvy24KyNUs5lzaWZA2uxg88+JqHk274UTS\n\t C215wvSJYgzce5pGE0yKYcwbeRvrxkEcjnMw07gBC8y/b6TvDI3BzvFGX/4xIfe0jc\n\t 6vvVN5GojgthA==", "From": "Aaron Kling via B4 Relay <devnull+webgeek1234.gmail.com@kernel.org>", "Date": "Mon, 06 Apr 2026 01:39:18 -0500", "Subject": "[PATCH] arm64: tegra: Enable interconnect for MC and EMC on\n Tegra210", "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", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260406-tegra210-actmon-dt-fixup-v1-1-6b6149b76eaf@gmail.com>", "X-B4-Tracking": "v=1; b=H4sIAAAAAAAC/y2NwQrCQAxEf6XkbCANbWX9FfGwbGPNwW3NbotQ+\n u8G9fhmeDM7FDGVApdmB5NNi87ZoT01kB4xT4I6OgMTD9RRj1Umi9wSxlSfc8ax4l3f64JDoHT\n uQs8cAri+mHjxnb7efmzyWv2h/sPj+AADDHgtfwAAAA==", "X-Change-ID": "20260405-tegra210-actmon-dt-fixup-690c74952299", "To": "Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,\n Conor Dooley <conor+dt@kernel.org>,\n Thierry Reding <thierry.reding@kernel.org>,\n Jonathan Hunter <jonathanh@nvidia.com>", "Cc": "Thierry Reding <treding@nvidia.com>, devicetree@vger.kernel.org,\n linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,\n Aaron Kling <webgeek1234@gmail.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=ed25519-sha256; t=1775457559; l=2268;\n i=webgeek1234@gmail.com; s=20250217; h=from:subject:message-id;\n bh=gyXAVSoHIXIcTUJk7cMRiRQgVTvpFrxg/mZlvuJD8to=;\n b=fvVZsQOBO01S3p+Rl40KVaAfU07CaNl5IhZUl9HawSK/LN/ypmUJNxJ2VQTZpYFKnAAZYklv0\n zLcQV3um12kDvFrmXLVyCzHxu/5Zy8mLLgjjq3PErkU9HFXwCyv8Jqo", "X-Developer-Key": "i=webgeek1234@gmail.com; a=ed25519;\n pk=TQwd6q26txw7bkK7B8qtI/kcAohZc7bHHGSD7domdrU=", "X-Endpoint-Received": "by B4 Relay for webgeek1234@gmail.com/20250217 with\n auth_id=342", "X-Original-From": "Aaron Kling <webgeek1234@gmail.com>", "Reply-To": "webgeek1234@gmail.com" }, "content": "From: Aaron Kling <webgeek1234@gmail.com>\n\nThese are being referenced by actmon, but are not currently enabled.\n\nFixes: 654427e0b9b7 (\"arm64: tegra: Add OPP tables on Tegra210\")\nSigned-off-by: Aaron Kling <webgeek1234@gmail.com>\n---\nWhen the opp tables were added to tegra210 [0], there was a previous\ncommit [1] that enabled interconnect on the mc and emc nodes. This was\nlater reverted [2] because some setups such as the Nvidia regression\ntest bench do not pass emc training data and thus the emc driver cannot\nprobe. Since interconnects cannot be optionally routed, the dc\ninterconnect routes cannot be enabled if the kernel is to support\nbootloader setups that do not properly pass emc training data. Thus this\nonly fixes the routes enough for actmon to operate, because actmon\nfailing to probe is no more fatal than an emc failure.\n\nThis depends on the mc/emc driver patch to add interconnect support [3],\nwhich should be merged first.\n\n[0] https://lore.kernel.org/linux-tegra/20251021-t210-actmon-p4-v5-3-4a4dbc49fbc8@gmail.com/\n[1] https://lore.kernel.org/linux-tegra/20251021-t210-actmon-p4-v5-2-4a4dbc49fbc8@gmail.com/\n[2] https://lore.kernel.org/linux-tegra/20251217104744.184153-1-jonathanh@nvidia.com/\n[3] https://lore.kernel.org/linux-tegra/20260406-t210-actmon-p2-v7-1-91adf535cf8f@gmail.com/\n---\n arch/arm64/boot/dts/nvidia/tegra210.dtsi | 2 ++\n 1 file changed, 2 insertions(+)\n\n\n---\nbase-commit: 2febe6e6ee6e34c7754eff3c4d81aa7b0dcb7979\nchange-id: 20260405-tegra210-actmon-dt-fixup-690c74952299\n\nBest regards,", "diff": "diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi\nindex 5f5e5370d70966918943232acab8992bf91ec42a..a5537a5c472c4bf5d649cc52372e531452b594f7 100644\n--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi\n+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi\n@@ -1028,6 +1028,7 @@ mc: memory-controller@70019000 {\n \n \t\t#iommu-cells = <1>;\n \t\t#reset-cells = <1>;\n+\t\t#interconnect-cells = <1>;\n \t};\n \n \temc: external-memory-controller@7001b000 {\n@@ -1041,6 +1042,7 @@ emc: external-memory-controller@7001b000 {\n \t\tnvidia,memory-controller = <&mc>;\n \t\toperating-points-v2 = <&emc_icc_dvfs_opp_table>;\n \n+\t\t#interconnect-cells = <0>;\n \t\t#cooling-cells = <2>;\n \t};\n \n", "prefixes": [] }