Cover Letter Detail
Show a cover letter.
GET /api/1.2/covers/2233962/?format=api
{ "id": 2233962, "url": "http://patchwork.ozlabs.org/api/1.2/covers/2233962/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/cover/cover.1778123510.git.hurryman2212@gmail.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": "<cover.1778123510.git.hurryman2212@gmail.com>", "list_archive_url": null, "date": "2026-05-07T03:31:57", "name": "[v3,0/2] AMD Promontory 21 xHCI temperature hwmon support", "submitter": { "id": 93349, "url": "http://patchwork.ozlabs.org/api/1.2/people/93349/?format=api", "name": "Jihong Min", "email": "hurryman2212@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/cover/cover.1778123510.git.hurryman2212@gmail.com/mbox/", "series": [ { "id": 503099, "url": "http://patchwork.ozlabs.org/api/1.2/series/503099/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=503099", "date": "2026-05-07T03:31:57", "name": "AMD Promontory 21 xHCI temperature hwmon support", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/503099/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2233962/comments/", "headers": { "Return-Path": "\n <linux-pci+bounces-54038-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 (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=luqXzygQ;\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-pci+bounces-54038-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.b=\"luqXzygQ\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=209.85.210.172", "smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=gmail.com" ], "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 4g9yW02SXXz1yJq\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 07 May 2026 13:32:44 +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 825DF301AA53\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 7 May 2026 03:32:24 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id DAB092D7817;\n\tThu, 7 May 2026 03:32:23 +0000 (UTC)", "from mail-pf1-f172.google.com (mail-pf1-f172.google.com\n [209.85.210.172])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 238422D8DD0\n\tfor <linux-pci@vger.kernel.org>; Thu, 7 May 2026 03:32:21 +0000 (UTC)", "by mail-pf1-f172.google.com with SMTP id\n d2e1a72fcca58-835386ff122so246327b3a.3\n for <linux-pci@vger.kernel.org>; Wed, 06 May 2026 20:32:21 -0700 (PDT)", "from mincom1 ([14.67.155.79])\n by smtp.gmail.com with ESMTPSA id\n d2e1a72fcca58-839682a103esm9171580b3a.51.2026.05.06.20.32.18\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Wed, 06 May 2026 20:32:20 -0700 (PDT)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1778124743; cv=none;\n b=TVaDCAcfgVmikIJJMIhpy07CfqqArMYbKLUnxcvra7803BIMhfY7VTm5xGi1MaL/3eubd0jBQFt1srZfVKic/FffYFM4soTxQWPjQ3re9V3yXJ8N2Di8+1ZXeKwlcGEicCL4gOB7+KfzeyrRMauD1TkZ2U/cwZpAXoz20Oj3aPk=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1778124743; c=relaxed/simple;\n\tbh=GXflDZZtOj++0sRst0xKUH830AVIhbrLZYn/7oCG1YI=;\n\th=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=CJxdZaKvpgqMBvBWtmyl1mPH8aXZz7xt6dhPDSIncuJtB6hu8BOYi3lpd1np25tfVpJl76SHsnXQvFvkrpB8MSrPaRe7OHwub6rQMdWP/ke3QTSLv3GGxSciIAXtJBFZxx6+Ei2Y/ooggKIb0zqVYxdYQs8O74TnrrqF9R2F45w=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com;\n spf=pass smtp.mailfrom=gmail.com;\n dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.b=luqXzygQ; arc=none smtp.client-ip=209.85.210.172", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=gmail.com; s=20251104; t=1778124741; x=1778729541;\n darn=vger.kernel.org;\n h=content-transfer-encoding:mime-version:message-id:date:subject:cc\n :to:from:from:to:cc:subject:date:message-id:reply-to;\n bh=/VhP1DpEaR3JO7WzlQe2Tdq2/A5+ePt/o60+NrBJM7o=;\n b=luqXzygQvDDqQO6JKgJeh8+erGDIEh/0uGuXD79oS+mm46+HPKEtLo/P0w8IkuSmY7\n 5lvj1MAcNM8vKTH+km062J07QoupRDeHMcKE/U/yzoX7a0/6PuNlxpDV5j4bwNYiG+XE\n 8ywAqTbAqDAffoI1K3ONp1PNHVzcIq7iIB9Jz8no2uRt0u+dzqcNiJx/4MN1SbJDxDFv\n 7wiKoGphgQXlLh53TEdOAMnYmmRzFLB2ivVIJVHZB6FKAS3EYTb5JS32U/pc92kZrrxK\n Gmh2WVhf8sUuEOWEJ1bF98JLq8E3j9PhXlCRu025wU4WzQZpemAoX0SbI+FJks/dCUqf\n TJ9g==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1778124741; x=1778729541;\n h=content-transfer-encoding:mime-version:message-id:date:subject:cc\n :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date\n :message-id:reply-to;\n bh=/VhP1DpEaR3JO7WzlQe2Tdq2/A5+ePt/o60+NrBJM7o=;\n b=pHUrE0uYqbXTreLgBcWao6XQHRVkvCsqFPyuGyu0+GdN65CJrJSnoI2yvTjYRu0inx\n Kexi3EbFIuhc94afFSOV0zkieW+w7APyggfPBu1+uKHtnO1W1X8Gek6pQBh8Xq3Eikoa\n 4VrbyHew5A3N10u7QadXDH5H3ws7NB0toTuQ4APGQ8cF4kXkRbWtQy9MdTqL03THVoV6\n Nt8dg5yqLxowDn9MoaX7zyPJiO7odmk2PWL0Ewbt865BLrauHslyqTyslGIzxW1CBRyW\n BOCR1HZYJxPLJc8o96lFmZpbjtL62UArNWegT9KFFuNcrf1xHzjvnVhLZrl4Wkvuskt5\n lUPg==", "X-Forwarded-Encrypted": "i=1;\n AFNElJ8I2cpnyYeu14SeMyC14FAWaxnkUFSPq50WRUMzAM2sNpsKJnERl1M4+27s48JNh+/Joz+pdzSgi3g=@vger.kernel.org", "X-Gm-Message-State": "AOJu0Yw1yEARIvOJ2ZQICGvWPWUZt9Cy71R5519LH8nAO76/1vQK4UGt\n\tdN1cPg6MFrPzvvhk/EiTenlQcOfXK4pl4dY0q8KJjQCy3QO9C6qbp89g", "X-Gm-Gg": "AeBDietDwt7Y/n/+EQxcSL/+pL/3cPYAHf4peqGin+BYnmJJ59f3x1ISP4mjbNpQSPd\n\tHt4pMqzCKl0YFyKonpOc4e5yciizZyD3VyQKw+aOdJbk8+r1crJthpX8Nus3RpX3lpm1iWzZPr9\n\t3RSghOqdUjfEWtgNSwq+OQIwtzJjyeLzoD/w7CStN9JqOcVmOMlgINlRNha36vXbBM8O1APBYiz\n\t4RL7Qb8xYsIX+S8zqLl71gGOODceDDzKi4H18tjW8vgsMP/JiZf3sXmVhcM+JtQa8S0YMcXlW5a\n\tl8pLGhXSsIzSWbm8gzuKAxI1RfyKiQxguS1gG4oG+opm2Gnj4uhxB9pXb3UdK4EsNK/rVhRSab0\n\t3L4YtS+AHWjYWzEfiwdzso0SyPpHJudt/SbwFWSMHcNG8blsNg12I56DnC0veMRZAXspG27bXLQ\n\trGqXbhPw18bcvwte2yID7NemFstVw11q4=", "X-Received": "by 2002:a05:6a00:198c:b0:82c:b808:4c59 with SMTP id\n d2e1a72fcca58-83a5ea3fe9bmr5893529b3a.46.1778124741306;\n Wed, 06 May 2026 20:32:21 -0700 (PDT)", "From": "Jihong Min <hurryman2212@gmail.com>", "To": "Greg Kroah-Hartman <gregkh@linuxfoundation.org>,\n\tMathias Nyman <mathias.nyman@intel.com>", "Cc": "Guenter Roeck <linux@roeck-us.net>,\n\tJonathan Corbet <corbet@lwn.net>,\n\tShuah Khan <skhan@linuxfoundation.org>,\n\tMario Limonciello <mario.limonciello@amd.com>,\n\tBasavaraj Natikar <Basavaraj.Natikar@amd.com>,\n\tlinux-usb@vger.kernel.org,\n\tlinux-hwmon@vger.kernel.org,\n\tlinux-doc@vger.kernel.org,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tJihong Min <hurryman2212@gmail.com>", "Subject": "[PATCH v3 0/2] AMD Promontory 21 xHCI temperature hwmon support", "Date": "Thu, 7 May 2026 12:31:57 +0900", "Message-ID": "<cover.1778123510.git.hurryman2212@gmail.com>", "X-Mailer": "git-send-email 2.53.0", "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": "Hi,\n\nThis series adds hwmon support for the temperature sensor exposed by AMD\nPromontory 21 (PROM21) xHCI controllers.\n\nPatch 1 adds a small generic auxiliary-device registration path to xhci-pci\nfor selected xHCI PCI controllers.\n\nPatch 2 adds the PROM21 hwmon driver. The driver binds through the\nauxiliary bus, reads the PROM21 xHCI temperature value through the\ncontroller MMIO BAR, and exposes it through hwmon.\n\nChanges in v3:\n- Use pci_match_id() with a plain struct pci_device_id table and\n PCI_DEVICE_DATA() for the auxiliary device name.\n- Remove conditional compilation blocks from xhci-pci.c and guard the\n auxiliary add/remove call sites with IS_ENABLED().\n- Use the full AMD Promontory 21 name in commit messages, Kconfig help\n text, and documentation.\n- Document the PROM21 chipset IP relationship to AMD 6xx/8xx series\n chipsets.\n- Change the default hwmon read behavior to not wake the xHCI PCI device.\n Return -EPERM when the device is suspended, matching the amdgpu\n precedent, and keep pm as an opt-in module parameter for runtime PM\n state changes during device memory access.\n- Keep Documentation/hwmon/index.rst sorted.\n- Small refactoring: remove the duplicate PROM21 PCI ID check from the\n hwmon driver and use the hwmon device name as the auxiliary device\n suffix.\n\nv2:\nhttps://lore.kernel.org/r/cover.1778099627.git.hurryman2212@gmail.com\n\nv1:\nhttps://lore.kernel.org/r/20260506032939.92351-1-hurryman2212@gmail.com\n\nJihong Min (2):\n usb: xhci-pci: add generic auxiliary device interface\n hwmon: add AMD Promontory 21 xHCI temperature sensor support\n\n Documentation/hwmon/index.rst | 1 +\n Documentation/hwmon/prom21-hwmon.rst | 86 ++++++++\n drivers/hwmon/Kconfig | 11 +\n drivers/hwmon/Makefile | 1 +\n drivers/hwmon/prom21-hwmon.c | 293 +++++++++++++++++++++++++++\n drivers/usb/host/Kconfig | 10 +\n drivers/usb/host/xhci-pci.c | 83 ++++++++\n 7 files changed, 485 insertions(+)\n create mode 100644 Documentation/hwmon/prom21-hwmon.rst\n create mode 100644 drivers/hwmon/prom21-hwmon.c" }