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{ "id": 2235077, "url": "http://patchwork.ozlabs.org/api/1.2/covers/2235077/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/cover/20260508143910.14673-1-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": "<20260508143910.14673-1-hurryman2212@gmail.com>", "list_archive_url": null, "date": "2026-05-08T14:39:08", "name": "[v4,0/2] AMD Promontory 21 xHCI temperature sensor 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/20260508143910.14673-1-hurryman2212@gmail.com/mbox/", "series": [ { "id": 503404, "url": "http://patchwork.ozlabs.org/api/1.2/series/503404/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=503404", "date": "2026-05-08T14:39:08", "name": "AMD Promontory 21 xHCI temperature sensor support", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/503404/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2235077/comments/", "headers": { "Return-Path": "\n <linux-pci+bounces-54257-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=ISGHnfyp;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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USB host\noperation is delegated to common xhci-pci code; the PROM21 glue only owns\nthe PCI binding and publishes an auxiliary \"hwmon\" child device for\noptional sensor support. The glue is built-in only when enabled, matching\nbuilt-in xhci-pci, so PROM21 controllers are not left unbound during early\nboot if an optional module is absent.\n\nPatch 2 adds the auxiliary hwmon driver. It exposes temp1_input as\nprom21_xhci, does not wake the parent PCI device for sensor reads, and\ndocuments the register access and empirical observation method used to\nidentify the register pair and conversion formula.\n\nChanges in v4:\n- Move PROM21 PCI handling into a PROM21-specific xHCI PCI glue driver.\n- Make USB_XHCI_PCI_PROM21 built-in only when enabled.\n- Rename the hwmon driver/config/name to prom21-xhci,\n SENSORS_PROM21_XHCI, and prom21_xhci.\n- Return -ENODATA for suspended parent devices and invalid raw values.\n- Remove temp1_label and the runtime PM module parameter.\n- Simplify hwmon remove/read lifetime handling.\n- Expand hwmon documentation with register access, runtime PM behavior,\n sysfs lookup, and observation details.\n\nJihong Min (2):\n usb: xhci-pci: add AMD Promontory 21 PCI glue\n hwmon: add AMD Promontory 21 xHCI temperature sensor support\n\n Documentation/hwmon/index.rst | 1 +\n Documentation/hwmon/prom21-xhci.rst | 99 +++++++++++\n drivers/hwmon/Kconfig | 10 ++\n drivers/hwmon/Makefile | 1 +\n drivers/hwmon/prom21-xhci.c | 250 ++++++++++++++++++++++++++++\n drivers/usb/host/Kconfig | 18 ++\n drivers/usb/host/Makefile | 1 +\n drivers/usb/host/xhci-pci-prom21.c | 111 ++++++++++++\n drivers/usb/host/xhci-pci.c | 11 ++\n 9 files changed, 502 insertions(+)\n create mode 100644 Documentation/hwmon/prom21-xhci.rst\n create mode 100644 drivers/hwmon/prom21-xhci.c\n create mode 100644 drivers/usb/host/xhci-pci-prom21.c" }