From: Jihong Min <hurryman2212@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mathias Nyman <mathias.nyman@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>,
Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>,
Mario Limonciello <mario.limonciello@amd.com>,
Basavaraj Natikar <Basavaraj.Natikar@amd.com>,
Michal Pecio <michal.pecio@gmail.com>,
Mario Limonciello <superm1@kernel.org>,
Yaroslav Isakov <yaroslav.isakov@gmail.com>,
linux-usb@vger.kernel.org, linux-hwmon@vger.kernel.org,
linux-doc@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, Jihong Min <hurryman2212@gmail.com>
Subject: [PATCH v7 0/2] AMD Promontory 21 xHCI temperature sensor support
Date: Tue, 19 May 2026 09:07:30 +0900 [thread overview]
Message-ID: <20260519000732.2334711-1-hurryman2212@gmail.com> (raw)
Hi,
This series adds temperature monitoring for AMD Promontory 21 (PROM21)
xHCI PCI functions.
Patch 1 adds a small PROM21-specific xHCI PCI glue driver. USB host
operation is delegated to the common xhci-pci code, while the PROM21 glue
publishes an auxiliary device for optional sensor support.
Patch 2 adds an auxiliary-bus hwmon driver that binds to that auxiliary
device and exposes the PROM21 xHCI temperature value as temp1_input.
The hwmon driver reads the sensor through a vendor index/data register pair
in the xHCI PCI MMIO BAR. It does not wake the parent PCI device for hwmon
reads; if the parent is suspended, the read returns -ENODATA.
Changes in v7:
- Tie the hidden PROM21 PCI glue option to the user-visible
SENSORS_PROM21_XHCI option instead of enabling it for all x86 builds.
- Drop an unnecessary NULL check after successful xhci_pci_common_probe().
- Use a goto-based cleanup path in prom21_xhci_create_auxdev().
Jihong Min (2):
usb: xhci-pci: add AMD Promontory 21 PCI glue
hwmon: add AMD Promontory 21 xHCI temperature sensor support
Documentation/hwmon/index.rst | 1 +
Documentation/hwmon/prom21-xhci.rst | 101 ++++++++
drivers/hwmon/Kconfig | 10 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/prom21-xhci.c | 239 ++++++++++++++++++
drivers/usb/host/Kconfig | 6 +
drivers/usb/host/Makefile | 1 +
drivers/usb/host/xhci-pci-prom21.c | 137 ++++++++++
drivers/usb/host/xhci-pci.c | 11 +
drivers/usb/host/xhci-pci.h | 3 +
include/linux/platform_data/usb-xhci-prom21.h | 22 ++
11 files changed, 532 insertions(+)
create mode 100644 Documentation/hwmon/prom21-xhci.rst
create mode 100644 drivers/hwmon/prom21-xhci.c
create mode 100644 drivers/usb/host/xhci-pci-prom21.c
create mode 100644 include/linux/platform_data/usb-xhci-prom21.h
base-commit: 4d3a2a466b8d68d852a1f3bbf11204b718428dc4
--
2.53.0
next reply other threads:[~2026-05-19 0:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-19 0:07 Jihong Min [this message]
2026-05-19 0:07 ` [PATCH v7 1/2] usb: xhci-pci: add AMD Promontory 21 PCI glue Jihong Min
2026-05-20 14:18 ` Guenter Roeck
2026-05-21 14:47 ` Greg Kroah-Hartman
2026-05-19 0:07 ` [PATCH v7 2/2] hwmon: add AMD Promontory 21 xHCI temperature sensor support Jihong Min
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260519000732.2334711-1-hurryman2212@gmail.com \
--to=hurryman2212@gmail.com \
--cc=Basavaraj.Natikar@amd.com \
--cc=corbet@lwn.net \
--cc=gregkh@linuxfoundation.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-hwmon@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=linux@roeck-us.net \
--cc=mario.limonciello@amd.com \
--cc=mathias.nyman@intel.com \
--cc=michal.pecio@gmail.com \
--cc=skhan@linuxfoundation.org \
--cc=superm1@kernel.org \
--cc=yaroslav.isakov@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).