Here is the big set of char, misc, iio, counter, fpga, and other small
driver subsystems for 7.3-rc1.
Overall, due to some driver removals we only added a bit more code than
removed, which was a nice change. Highlights in this merge request are:
- Loads of IIO driver updates and additions
- binder driver updates (more on that below...)
- Removal of the SGI XP and GRU drivers as they are not used anymore
and turn out to be pretty insecure overall
- Removal of the obsolete ibmasm driver as it's not being used anymore
- Coresight driver updates and additions
- Mei driver udpates
- Counter driver updates
- FPGA driver updates
- ICC driver updates
- lots and lots of other tiny driver updates to resolve reported
issues
All of these have been in linux-next for a while, with the only reported
issues being some major merge conflicts. Miguel pointed out some of
these with the Rust tree merge, which is the majority of them. I'll
follow up with a diffstat of the merge resolution I made against your
most recent tree, which works for me.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc/IIO/etc driver updates from Greg KH:
"Here is the big set of char, misc, iio, counter, fpga, and other small
driver subsystems for 7.3-rc1.
Overall, due to some driver removals we only added a bit more code
than removed, which was a nice change. Highlights in this merge
request are:
- Loads of IIO driver updates and additions
- binder driver updates (more on that below...)
- Removal of the SGI XP and GRU drivers as they are not used anymore
and turn out to be pretty insecure overall
- Removal of the obsolete ibmasm driver as it's not being used
anymore
- Coresight driver updates and additions
- Mei driver udpates
- Counter driver updates
- FPGA driver updates
- ICC driver updates
- lots and lots of other tiny driver updates to resolve reported
issues
All of these have been in linux-next for a while"
* tag 'char-misc-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (513 commits)
iio: chemical: atlas-sensor: use iio_trigger_poll_nested() to fix remove UAF
iio: adc: pac1921: fix wrong channel used in trigger handler read
iio: light: gp2ap002: re-enable irq if runtime suspend fails
iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes
iio: light: apds9306: fix PM reference leak in apds9306_read_data()
iio: gyro: mpu3050: fix sign of raw angular velocity readings
iio: srf04: fix pm_runtime handling on probe error path
iio: adc: ad4080: configure backend data size
iio: adc: adi-axi-adc: add data size support for AD408X backend
iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable
iio: dac: ad5446: fix OF module device table
iio: light: opt4001: Fix reversed GENMASK() arguments in fault count mask
iio: light: opt4001: Reject integration times with a non-zero seconds part
iio: light: opt4001: Fix incompatible pointer type passed to div_u64_rem()
iio: light: opt4001: Fix power down clearing bits of the wrong register
iio: light: opt4060: Fix incorrect register name in threshold read error message
iio: light: opt4060: Fix pointer type passed to div_u64_rem()
iio: light: opt4060: Reject integration times with a non-zero seconds part
iio: light: ltrf216a: fix runtime PM reference leak in error path
iio: pressure: dps310: fix NULL pointer dereference on ACPI probe
...
New driver:
- AMD AXI I3C master controller
Subsystem:
- I3C Common Command Code (CCC) handling improvements, especially around GET
CCCs
- SETAASA device discovery support
- ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as
I2C devices on I3C bus
- IBI-based wakeup support
Drivers:
- dw: SETAASA support
- mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support,
PIO queue management support for HCI v1.2
- renesas: improve suspend to RAM support, add runtime PM support
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Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull I3C updates from Alexandre Belloni:
"A new driver this cycle, for the AMD AXI I3C controller.
There are also new features such as IBI wakeup support, SETAASA device
discovery and ACPI support for the the DAA methods, meaning we can now
communicate with the SPD devices on DDR5 modules.
New driver:
- AMD AXI I3C master controller
Subsystem:
- I3C Common Command Code (CCC) handling improvements, especially
around GET CCCs
- SETAASA device discovery support
- ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
well as I2C devices on I3C bus
- IBI-based wakeup support
Drivers:
- dw: SETAASA support
- mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
controller support, PIO queue management support for HCI v1.2
- renesas: improve suspend to RAM support, add runtime PM support"
* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
i3c: dw: reduce do_daa time if there's no client
i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
i3c: dw: rename "pclk" to "apb" to match dt-binding
i3c: dw: make struct dw_i3c_cmd smaller
i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
i3c: renesas: Don't register devices when ENTDAA times out
i3c: master: dw-i3c-master: fix OD timing for first broadcast
i3c: mipi-i3c-hci: Advertise IBI wakeup capability
i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
i3c: master: Reject IBI requests from non-IBI-capable devices
i3c: master: Add helper to query bus wakeup requirements
i3c: master: Report wakeup events for IBIs
i3c: master: Support IBI-based wakeup capability
i3c: master: Fix potential UAF in i3c_device_match()
i3c: master: Fix potential UAF in i3c_device_uevent()
i3c: Make dev->desc locking assumptions explicit
i3c: master: Fix use-after-free of master->this
...
The ROG Ryujin III uses different report offsets and a different
cooler-duty channel from the Ryujin II. It also lacks the separate
external fan controller supplied with the older model.
Add model data and USB IDs for the Extreme and EVA Edition variants.
Skip controller commands and hide the unavailable controller hwmon
channels for these devices. Update the driver documentation, Kconfig
text, and module description accordingly.
Link: https://github.com/aleksamagicka/asus_rog_ryujin-hwmon/pull/9
Assisted-by: Codex:gpt-5.6-sol sparse
Signed-off-by: Arie Miller <renari@arimil.com>
Reviewed-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20260812103532.395049-3-renari@arimil.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add information about the HX1500i 2025 series and fix the missing
HX1500i in Kbuild.
Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/anVuBd8Bb7T66OUO@monster.localdomain
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The ADT7470 features four PWM outputs designed to control fans.
Previously, these were only accessible through the legacy hwmon
sysfs interface.
Expose the ADT7470 fan control lines through the generic PWM framework.
This allows generic PWM consumers described in Device Tree, such as
"pwm-fan", to use the device through the "#pwm-cells" property. This is
particularly necessary for boards where the ADT7470 external temperature
sensors are not populated and the chip is used strictly as a fan
controller (e.g., Edgecore ECS-2100-52T switches). In such setups,
delegating control to the generic PWM subsystem allows the kernel's
thermal framework to manage the fans based on unrelated temperature
zones, such as internal SoC sensors.
When a PWM consumer applies a new PWM state, the driver automatically
switches the corresponding PWM channel to manual mode so that the
requested duty cycle takes effect. The duty cycle specified by the PWM
framework is internally converted to the 0-255 scale expected by the
hardware registers.
To prevent conflicting access, the hwmon PWM sysfs attributes are hidden
when the device is registered with PWM framework support (i.e. when
"#pwm-cells" is present in DT and CONFIG_PWM is reachable).
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Link: https://lore.kernel.org/r/20260805-adt7470_thermalzone-v6-3-5605a5f95467@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Commit 554b3529fe ("thermal/drivers/core: Remove the module Kconfig's
option") [1] obviated some of the "Optional dependencies" (as described in
"Documentation/kbuild/kconfig-language.rst") in "drivers/hwmon/Kconfig".
Namely, said commit restricted the valid/possible subset of the full
Cartesian product "CONFIG_THERMAL x CONFIG_THERMAL_OF" to
{ (n, n), (y, n), (y, y) }
through "drivers/thermal/Kconfig". Numerically (using tristate values),
this set can be expressed as:
{ (0, 0), (2, 0), (2, 2) }
Over this set, the "drivers/hwmon/Kconfig" tristate expression
THERMAL || !THERMAL_OF
or equivalently,
max(THERMAL, 2-THERMAL_OF)
invariably evaluates to "y" (2).
Similarly, with THERMAL having been restricted to
{ n, y }
or numerically,
{ 0, 2 }
the "drivers/hwmon/Kconfig" tristate expression
THERMAL || THERMAL=n
or equivalently,
max(THERMAL, THERMAL=0)
invariably evaluates to "y" (2). (Note that "THERMAL=0" returns either "y"
(2) or "n" (0).)
Commit f37353320e ("hwmon/drivers/core: Simplify complex dependency")
[2], which is the final commit of the series that [1] is the beginning of,
cleaned up the hwmon C source code in fact; however, it missed the
now-collapsed dependencies in Kconfig. At the time of [2], six of today's
such dependencies were present in Kconfig. Since then, two more have been
added (such that they persist, anyway): one by commit 4f8d374b77
("hwmon: (max6650) add thermal cooling device capability"), which was
independent of the above-noted series, and another by commit 9855caf5d4
("hwmon: add driver for the hwmon parts of qnap-mcu devices"), which was a
descendant of the series.
Remove these always-"y" dependencies.
Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
Cc: Cristian Marussi <cristian.marussi@arm.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Sudeep Holla <sudeep.holla@kernel.org>
Cc: arm-scmi@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-aspeed@lists.ozlabs.org
Cc: linux-hwmon@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laszlo Ersek <laszlo.ersek@arm.com>
Link: https://lore.kernel.org/r/20260729215436.2103380-1-laszlo.ersek@arm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The Kandou KB9002 is an 8-lane PCIe 5.0 retimer that exposes an SMBus
target with mandatory PEC. Add a hwmon driver reporting the firmware
aggregated maximum die temperature as temp1_input, with the firmware
version and boot status under debugfs.
Signed-off-by: Andy Chung <Andy.Chung@amd.com>
Link: https://lore.kernel.org/r/20260724-kb9002-upstream-v5-3-9523c3ffe83a@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The fan driver now is independent of the fan plreg GPIO information.
Therefore there will no longer be presence or fail information available
from the driver. Part of the changes includes removing a system power check
as the GPIO driver needs it to report power state to host.
Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230705194544.100370-5-nick.hawkins@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The GXCAS GXHT30 is a humidity and temperature sensor that is a
drop-in replacement for and fully software compatible with the
Sensirion SHT30.
It is handled by the "sensirion,sht30" fallback compatible without
any driver changes; manual instantiation works with the existing
sht3x device name. Document the chip as supported.
Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
Link: https://lore.kernel.org/r/20260713074559.12196-5-zaixiang.xu.dev@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for ESWIN EIC7700 Voltage and Temperature sensor. The driver
supports temperature and voltage monitoring with polynomial conversion,
and provides sysfs interface for sensor data access.
The PVT IP contains one temperature sensor and one voltage sensor.
Signed-off-by: Yulin Lu <luyulin@eswincomputing.com>
Signed-off-by: Huan He <hehuan1@eswincomputing.com>
Signed-off-by: Xuyang Dong <dongxuyang@eswincomputing.com>
Link: https://lore.kernel.org/r/20260630091220.1608-1-dongxuyang@eswincomputing.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add a driver for the temperature and voltage sensors on PolarFire SoC.
The temperature reports how hot the die is, and the voltages are the
SoC's 1.05, 1.8 and 2.5 volt rails respectively.
The hardware supports alarms in theory, but there is an erratum that
prevents clearing them once triggered, so no support is added for them.
The hardware measures voltage with 16 bits, of which 1 is a sign bit and
the remainder holds the voltage as a fixed point integer value. It's
improbable that the hardware will work if the voltages are negative, so
the driver ignores the sign bits.
There's no dt support etc here because this is the child of a simple-mfd
syscon.
Signed-off-by: Lars Randers <lranders@mail.dk>
Co-developed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260629-wriggle-headscarf-c85a4070dddb@spud
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
- Document stratix10-rsu for QSPI size and erase size
- Add method to retrieve device info table using RSU
- Add support for hardware monitoring using service driver
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Merge tag 'svc_updates_for_v7.3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into char-misc-next
SoCFPGA firmware updates for v7.3
- Document stratix10-rsu for QSPI size and erase size
- Add method to retrieve device info table using RSU
- Add support for hardware monitoring using service driver
Resolves merge conflicts in:
drivers/firmware/stratix10-svc.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'svc_updates_for_v7.3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
hwmon: add Altera SoC FPGA hardware monitoring driver
firmware: stratix10-svc: add async HWMON read commands and register socfpga-hwmon device
firmware: stratix10-rsu: Add synchronous fallback for async SVC operations
firmware: stratix10-rsu: Add flash device info retrieval via SMC
Documentation: ABI: add stratix10-rsu QSPI size and erase_size sysfs
Add a regmap config and a probe function to support I3C-based
communication with SPD5118 devices.
On an I3C bus, SPD5118 devices are enumerated via SETAASA and always
require an ACPI or device tree entry. Device matching is hence through
the OF match tables only and does not need an I3C class match table. The
device identity is verified in the type registers before proceeding to
the common probe function.
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Link: https://patch.msgid.link/20260728065955.809445-12-akhilrajeev@nvidia.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Add a hardware monitor driver for Altera SoC FPGA devices using the
Stratix 10 service layer. Sensor channels are selected based on the
service layer compatible string.
Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
Signed-off-by: Tze Yee Ng <tze.yee.ng@altera.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/all/a79aee37be7067691fd02a3a9cfd134c995e5a95.1784785709.git.tze.yee.ng@altera.com/#r
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Move SBTSI(Side-Band Temperature Sensor Interface) core functionality out
of the hwmon-only path and into drivers/misc/amd-sbi so it can be reused
by non-hwmon consumers.
I2C probe parsing is moved from drivers/hwmon/sbtsi_temp.c
into drivers/misc/amd-sbi/tsi.c under CONFIG_AMD_SBTSI. The core driver
stores struct sbtsi_data on the bus device and registers an auxiliary
device amd-sbtsi.temp-sensor.<addr> per target.
The current hwmon temp sensor will now require the CONFIG_AMD_SBTSI
configuration as a new dependency.
This split prepares the driver for additional interfaces while keeping
hwmon support in hwmon subsystem on top of common SBTSI core logic.
Add platform dependencies to clarify this driver is intended to run on
the BMC and not on the managed node.
Reviewed-by: Akshay Gupta <Akshay.Gupta@amd.com>
Signed-off-by: Prathima <Prathima.Lk@amd.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20260710111642.850022-2-Akshay.Gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Kconfig entry for the MAX6697 sensor doesn't contain a
`select REGMAP_I2C` parameter, causing build failures if regmap
isn't selected previously during the build process.
Fixes: 3a2a8cc3fe ("hwmon: (max6697) Convert to use regmap")
Cc: stable@vger.kernel.org
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Link: https://lore.kernel.org/r/20260629-add-kconfig-deps-v1-3-8104df929b1a@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The Kconfig entry for the MAX1619 sensor doesn't contain a
`select REGMAP` parameter, causing build failures if regmap
isn't selected previously during the build process.
Fixes: f8016132ce ("hwmon: (max1619) Convert to use regmap")
Cc: stable@vger.kernel.org
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Link: https://lore.kernel.org/r/20260629-add-kconfig-deps-v1-1-8104df929b1a@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Here is the big set of USB and Thunderbolt driver changes for 7.2-rc1.
Lots of little stuff in here, major highlights include:
- USB4STREAM support for Thunderbolt devices. A new way to send "raw"
data very quickly over a USB4 connection to another system directly.
- Other thunderbolt updates and changes to make the stream code work
- xhci driver updates and additions
- typec driver updates and additions
- usb gadget driver updates and fixes for reported issues
- zh_CN documentation translation of the USB documentation
- usb-serial driver updates
- dts cleanups for some USB platforms
- other minor USB driver updates and tweaks
All of these have been in linux-next for over a week with no reported
issues, most of them for many many weeks.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt driver updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver changes for 7.2-rc1.
Lots of little stuff in here, major highlights include:
- USB4STREAM support for Thunderbolt devices. A new way to send "raw"
data very quickly over a USB4 connection to another system directly
- Other thunderbolt updates and changes to make the stream code work
- xhci driver updates and additions
- typec driver updates and additions
- usb gadget driver updates and fixes for reported issues
- zh_CN documentation translation of the USB documentation
- usb-serial driver updates
- dts cleanups for some USB platforms
- other minor USB driver updates and tweaks
All of these have been in linux-next for over a week with no reported
issues, most of them for many many weeks"
* tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (131 commits)
usb: ucsi: huawei_gaokun: support mode switching
thunderbolt: debugfs: Fix sideband write size check
thunderbolt: debugfs: Fix margining error counter buffer leak
usb: host: xhci-rcar: Split R-Car Gen2 and Gen3 .plat_start() handling
usb: host: xhci-rcar: Remove SET_XHCI_PLAT_PRIV_FOR_RCAR() macro
usb: xhci: allocate internal DCBAA mirror dynamically
usb: xhci: allocate DCBAA based on host controller max slots
usb: xhci: refactor DCBAA struct
xhci: Prevent queuing new commands if xhci is inaccessible
xhci: dbc: detect and recover hung DbC during enumeraton
xhci: dbc: add timestamps to DbC state changes in a new helper.
xhci: dbc: add helper to set and clear DbC DCE enable bit
xhci: dbc: serialize enabling and disabling dbc
xhci: dbc: Fix sysfs ABI Documentation for xhci dbc states
usb: xhci: Improve Soft Retries after short transfers
usb: xhci: Remove isochronous URB_SHORT_NOT_OK handling
usb: xhci: Remove skip_isoc_td()
usb: xhci: Simplify xhci_quiesce()
usb: xhci: remove legacy 'num_trbs_free' tracking
usb: xhci: fix typo in xhci_set_port_power() comment
...
This is the hwmon driver for Microchip EMC1812/13/14/15/33
Multichannel Low-Voltage Remote Diode Sensor Family.
EMC1812 has one external remote temperature monitoring channel.
EMC1813 has two external remote temperature monitoring channels.
EMC1814 has three external remote temperature monitoring channels,
channels 2 and 3 support anti parallel diode.
EMC1815 has four external remote temperature monitoring channels and
channels 1/2 and 3/4 support anti parallel diode.
EMC1833 has two external remote temperature monitoring channels and
channels 1 and 2 support anti parallel diode.
Resistance Error Correction is supported on channels 1/2 and 3/4.
Signed-off-by: Marius Cristea <marius.cristea@microchip.com>
Link: https://lore.kernel.org/r/20260610-hw_mon-emc1812-v11-2-cef809af5c19@microchip.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Support the LTC4283 Hot Swap Controller. The device features programmable
current limit with foldback and independently adjustable inrush current to
optimize the MOSFET safe operating area (SOA). The SOA timer limits MOSFET
temperature rise for reliable protection against overstresses.
An I2C interface and onboard ADC allow monitoring of board current,
voltage, power, energy, and fault status.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20260502-ltc4283-support-v13-2-1c206542e652@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add hwmon driver for the ARCTIC Fan Controller, a USB HID device
(VID 0x3904, PID 0xF001) with 10 fan channels. Exposes fan speed in
RPM (read-only) and PWM duty cycle (0-255, read/write) via sysfs.
The device pushes IN reports at ~1 Hz containing RPM readings. PWM is
set via OUT reports; the device applies the new duty cycle and sends
back a 2-byte ACK (Report ID 0x02). The driver waits up to 1 s for
the ACK using a completion. Measured device latency: max ~563 ms over
500 iterations. PWM control is manual-only: the device never changes
duty cycle autonomously.
raw_event() may run in hardirq context, so fan_rpm[] is protected by
a spinlock with irq-save. pwm_duty[] is also protected by this spinlock
because reset_resume() clears it outside the hwmon core lock. The OUT
report buffer is built and write_pending is armed under the same lock so
that no reset_resume() can race with the pwm_duty[] snapshot. priv->buf
is exclusively accessed by write(), which the hwmon core serializes.
Signed-off-by: Aureo Serrano de Souza <aureo.serrano@arctic.de>
Link: https://lore.kernel.org/r/20260508064405.38676-1-aureo.serrano@arctic.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add an auxiliary-bus hwmon driver for the temperature sensor exposed by
AMD Promontory 21 (PROM21) xHCI PCI functions. The driver binds to the
"hwmon" auxiliary device published by the PROM21 xHCI PCI glue and
exposes the sensor as temp1_input under the prom21_xhci hwmon device.
The sensor is accessed through a PROM21 vendor index/data register pair
in the xHCI PCI MMIO BAR. The driver consumes parent-provided MMIO data
from the PROM21 PCI glue instead of inspecting the parent PCI driver's
drvdata. The read path restores the previous vendor index value after
sampling and does not runtime-resume the parent PCI device; reads from a
suspended parent return -ENODATA.
Document the supported device, register access, runtime PM behavior, and
sysfs lookup method. The documentation also records the observation
method used to identify the register pair and derive the conversion
formula.
Assisted-by: Codex:gpt-5.5
Signed-off-by: Jihong Min <hurryman2212@gmail.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Tested-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20260519000732.2334711-3-hurryman2212@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver provides fan speed monitoring for Lenovo Yoga, Legion, and
IdeaPad laptops by interfacing with the Embedded Controller (EC) via ACPI.
To address low-resolution sampling in Lenovo EC firmware, a Rate-Limited
Lag (RLLag) filter is implemented. The filter ensures a consistent physical
curve regardless of userspace polling frequency.
Hardware identification is performed via DMI-based quirk tables, which
map specific ACPI object paths and register widths (8-bit vs 16-bit)
deterministically.
Signed-off-by: Sergio Melas <sergiomelas@gmail.com>
Link: https://lore.kernel.org/r/20260327221602.18832-1-sergiomelas@gmail.com
[groeck: Dropped double empty line in Kconfig]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for the ITE IT8689E Super I/O chip. The IT8689E supports
newer autopwm, 12mV ADC, 16-bit fans, six fans, six PWM channels,
PWM frequency 2, six temperature inputs, AVCC3, temperature offset,
and fan on/off control.
Give it8689 its own GPIO configuration block in it87_find() rather
than sharing the it8620/it8628 block. The shared block reads
IT87_SIO_PINX2_REG and either marks IN3 as internal AVCC or skips
IN9. Because it8689 declares FEAT_AVCC3, IN9 is already marked as
always-internal before the GPIO block is reached; applying the PINX2
check would either create duplicate AVCC labels on IN3 and IN9 or
incorrectly skip IN9.
Also update Documentation/hwmon/it87.rst and drivers/hwmon/Kconfig to
document the newly supported chip.
Signed-off-by: Markus Hoffmann <markus@thehoffs.at>
Link: https://lore.kernel.org/r/20260322103301.18112-1-markus@thehoffs.at
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
OF_GPIO is selected automatically on all OF systems. Any symbols it
controls also provide stubs so there's really no reason to select it
explicitly.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260304-gpio-of-kconfig-v1-9-d597916e79e7@oss.qualcomm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add hardware monitoring support for the LattePanda Sigma SBC
(DFRobot, ITE IT8613E EC). The driver reads fan speed and
temperatures via direct port I/O, as the BIOS disables the
ACPI EC interface.
Signed-off-by: Mariano Abad <weimaraner@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
TMP110 and TMP113 temperature sensors are software compatible
with TMP102 sensor but have different accuracy (maximum error).
Signed-off-by: Flaviu Nistor <flaviu.nistor@gmail.com>
Link: https://lore.kernel.org/r/20260225095132.29954-1-flaviu.nistor@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
INA234 is register compatible to INA226 (excepting manufacturer and die
or device id registers) but has different scaling.
Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
Reviewed-by: Bence Csókás <bence98@sch.bme.hu> # v2
Tested-by: Jens Almer <bagawk@gmail.com>
Tested-by: Jonas Rebmann <jre@pengutronix.de>
Link: https://lore.kernel.org/r/20260220112024.97446-4-ian.ray@gehealthcare.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Subsystem:
- simplify combined i3c/i2c dependencies
Drivers:
- dw: handle 2C properly, fix possible race condition
- mipi-i3c-hci: many DMA related fixes
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Merge tag 'i3c/fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c fixes from Alexandre Belloni:
"This introduces the I3C_OR_I2C symbol which is not a fix per se but is
affecting multiple subsystems so it is included to ease
synchronization.
Apart from that, Adrian is mostly fixing the mipi-i3c-hci driver DMA
handling, and I took the opportunity to add two fixes for the dw-i3c
driver.
Subsystem:
- simplify combined i3c/i2c dependencies
Drivers:
- dw: handle 2C properly, fix possible race condition
- mipi-i3c-hci: many DMA related fixes"
* tag 'i3c/fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: dw-i3c-master: Set SIR_REJECT in DAT on device attach and reattach
i3c: master: dw-i3c: Fix missing of_node for virtual I2C adapter
i3c: mipi-i3c-hci: Fallback to software reset when bus disable fails
i3c: mipi-i3c-hci: Fix handling of shared IRQs during early initialization
i3c: mipi-i3c-hci: Fix race in DMA error handling in interrupt context
i3c: mipi-i3c-hci: Consolidate common xfer processing logic
i3c: mipi-i3c-hci: Restart DMA ring correctly after dequeue abort
i3c: mipi-i3c-hci: Add missing TID field to no-op command descriptor
i3c: mipi-i3c-hci: Correct RING_CTRL_ABORT handling in DMA dequeue
i3c: mipi-i3c-hci: Fix race between DMA ring dequeue and interrupt handler
i3c: mipi-i3c-hci: Fix race in DMA ring dequeue
i3c: mipi-i3c-hci: Fix race in DMA ring enqueue for parallel xfers
i3c: mipi-i3c-hci: Consolidate spinlocks
i3c: mipi-i3c-hci: Factor out DMA mapping from queuing path
i3c: mipi-i3c-hci: Fix Hot-Join NACK
i3c: mipi-i3c-hci: Use ETIMEDOUT instead of ETIME for timeout errors
i3c: simplify combined i3c/i2c dependencies
All combined i2c/i3c drivers appear to suffer from the same link
time problem when CONFIG_I3C is set to 'm':
arm-linux-gnueabi-ld: drivers/iio/magnetometer/mmc5633.o: in function `mmc5633_i3c_driver_init':
mmc5633.c:(.init.text+0x30): undefined reference to `i3c_driver_register_with_owner'
This was previously fixed every time by marking individual
drivers as 'depends on I2C; depends on I3C || !I3C', but this gets
tedious and is somewhat confusing.
Add a Kconfig symbol 'I3C_OR_I2C' to help replace those dependencies,
and use this in all the existing drivers that had already fixed it
as well as the new mmc5633 driver.
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Link: https://patch.msgid.link/20260204164216.544409-1-arnd@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This reverts commit 443b39c82c.
I was just informed that this product is discontinued (without being
ever released to the market). Pull the plug and let's not waste any more
maintainers time.
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20260223100459.844967-4-mwalle@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for the P3T1035 & P3T2030 temperature sensor. While mostly
compatible with the TMP108, P3T1035 uses an 8-bit configuration register
instead of the 16-bit layout used by TMP108. Updated driver to handle
this difference during configuration read/write.
Signed-off-by: Mayank Mahajan <mayankmahajan.x@nxp.com>
Link: https://lore.kernel.org/r/20260119040459.2898998-2-mayankmahajan.x@nxp.com
[groeck: Reordered include files to retain alphabetic order]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The System Management Controller on Apple Silicon devices is responsible
for integrating and exposing the data reported by the vast array of
hardware monitoring sensors present on these devices. It is also
responsible for fan control, and allows users to manually set fan
speeds if they so desire. Add a hwmon driver to expose current,
power, temperature, and voltage monitoring sensors, as well as
fan speed monitoring and control via the SMC on Apple Silicon devices.
The SMC firmware has no consistency between devices, even when they
share an SoC. The FourCC keys used to access sensors are almost
random. An M1 Mac mini will have different FourCCs for its CPU core
temperature sensors to an M1 MacBook Pro, for example. For this
reason, the valid sensors for a given device are specified in a
child of the SMC Devicetree node. The driver uses this information
to determine which sensors to make available at runtime.
Reviewed-by: Neal Gompa <neal@gompa.dev>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Co-developed-by: Janne Grunau <j@jannau.net>
Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: James Calligeros <jcalligeros99@gmail.com>
Link: https://lore.kernel.org/r/20251112-macsmc-subdevs-v5-6-728e4b91fe81@gmail.com
[groeck: Added Documentation to index]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add a driver for the ST Microelectronics TSC1641 16-bit high-precision
power monitor. The driver supports reading bus voltage, current, power,
and temperature. Sysfs attributes are exposed for shunt resistor and
update interval. The driver integrates with the hwmon subsystem and
supports optional ALERT pin polarity configuration.
Signed-off-by: Igor Reznichenko <igor@reznichenko.net>
Link: https://lore.kernel.org/r/20251105201406.1210856-3-igor@reznichenko.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for dht20 temperature and humidity sensor from Aosong.
Modify aht10 driver to handle different init command for dht20 sensor by
adding init_cmd entry in the driver data. dht20 sensor is compatible with
aht10 hwmon driver with this change.
Tested on TI am62x SK board with dht20 sensor connected at i2c-2 port.
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Link: https://lore.kernel.org/r/2025112-94320-906858@bhairav-test.ee.iitb.ac.in
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for the ADT7422 high accuracy digital temperature sensor. It's
identical to the other chips supported in the driver so we just need to
add it to the ID tables.
Co-developed-by: Cosmin Tanislav <demonsingur@gmail.com>
Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20251015-dev-add-adt7422-v1-3-7cf72d3253ad@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
GPIO core:
- add support for sparse pin ranges to the glue between GPIO and pinctrl
- use a common prefix across all GPIO descriptor flags for improved
namespacing
New drivers:
- add new GPIO driver for the Nuvoton NCT6694
- add new GPIO driver for MAX7360
Driver improvements:
- add support for Tegra 256 to the gpio-tegra186 driver
- add support for Loongson-2K0300 to the gpio-loongson-64bit driver
- refactor the gpio-aggregator module to expose its GPIO forwarder API
to other in-kernel users (to enable merging of a new pinctrl driver
that uses it)
- convert all remaining drivers to using the modernized generic GPIO chip
API and remove the old interface
- stop displaying global GPIO numbers in debugfs output of controller
drivers
- extend the gpio-regmap helper with a new config option and improve its
support for GPIO interrupts
- remove redundant fast_io parameter from regmap configs in GPIO drivers
that already use MMIO regmaps which imply it
- add support for a new model in gpio-mmio: ixp4xx expansion bus
- order includes alphabetically in a few drivers for better readability
- use generic device properties where applicable
- use devm_mutex_init() where applicable
- extend build coverage of drivers by enabling more to be compiled with
COMPILE_TEST enabled
- allow building gpio-stmpe as a module
- use dev_err_probe() where it makes sense in drivers
Late driver fixes:
- fix setting GPIO direction to output in gpio-mpfs
Documentation:
- document the usage of software nodes with GPIO chips
Device-tree bindings:
- Add DT bindings documents for new hardware: Tegra256, MAX7360
- Document a new model in Loongson bindings: LS2K0300
- Document a new model using the generic GPIO binding: IXP4xx
- Convert the DT binding for fsl,mxs-pinctrl to YAML
- fix the schema ID in the "trivial" GPIO schema
- describe GPIO hogs in the generic GPIO binding
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Merge tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"There are two new drivers and support for more models in existing
ones.
The generic GPIO API has been reworked and all users converted
which allowed us to move the fields specific to the generic GPIO
implementation out of the high-level struct gpio_chip into its own
structure that wraps the gpio_chip.
Other than that, there's nothing too exciting. Mostly minor tweaks and
fixes all over the place, some refactoring and some small new features
in helper modules.
GPIO core:
- add support for sparse pin ranges to the glue between GPIO and
pinctrl
- use a common prefix across all GPIO descriptor flags for improved
namespacing
New drivers:
- add new GPIO driver for the Nuvoton NCT6694
- add new GPIO driver for MAX7360
Driver improvements:
- add support for Tegra 256 to the gpio-tegra186 driver
- add support for Loongson-2K0300 to the gpio-loongson-64bit driver
- refactor the gpio-aggregator module to expose its GPIO forwarder
API to other in-kernel users (to enable merging of a new pinctrl
driver that uses it)
- convert all remaining drivers to using the modernized generic GPIO
chip API and remove the old interface
- stop displaying global GPIO numbers in debugfs output of controller
drivers
- extend the gpio-regmap helper with a new config option and improve
its support for GPIO interrupts
- remove redundant fast_io parameter from regmap configs in GPIO
drivers that already use MMIO regmaps which imply it
- add support for a new model in gpio-mmio: ixp4xx expansion bus
- order includes alphabetically in a few drivers for better
readability
- use generic device properties where applicable
- use devm_mutex_init() where applicable
- extend build coverage of drivers by enabling more to be compiled
with COMPILE_TEST enabled
- allow building gpio-stmpe as a module
- use dev_err_probe() where it makes sense in drivers
Late driver fixes:
- fix setting GPIO direction to output in gpio-mpfs
Documentation:
- document the usage of software nodes with GPIO chips
Device-tree bindings:
- Add DT bindings documents for new hardware: Tegra256, MAX7360
- Document a new model in Loongson bindings: LS2K0300
- Document a new model using the generic GPIO binding: IXP4xx
- Convert the DT binding for fsl,mxs-pinctrl to YAML
- fix the schema ID in the "trivial" GPIO schema
- describe GPIO hogs in the generic GPIO binding"
* tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (122 commits)
gpio: mpfs: fix setting gpio direction to output
gpio: generic: move GPIO_GENERIC_ flags to the correct header
gpio: generic: rename BGPIOF_ flags to GPIO_GENERIC_
gpio: nomadik: fix the debugfs helper stub
MAINTAINERS: Add entry on MAX7360 driver
input: misc: Add support for MAX7360 rotary
input: keyboard: Add support for MAX7360 keypad
gpio: max7360: Add MAX7360 gpio support
gpio: regmap: Allow to provide init_valid_mask callback
gpio: regmap: Allow to allocate regmap-irq device
pwm: max7360: Add MAX7360 PWM support
pinctrl: Add MAX7360 pinctrl driver
mfd: Add max7360 support
dt-bindings: mfd: gpio: Add MAX7360
rtc: Add Nuvoton NCT6694 RTC support
hwmon: Add Nuvoton NCT6694 HWMON support
watchdog: Add Nuvoton NCT6694 WDT support
can: Add Nuvoton NCT6694 CANFD support
i2c: Add Nuvoton NCT6694 I2C support
gpio: Add Nuvoton NCT6694 GPIO support
...
Add a new driver for the Kontron SMARC-sAM67 board management
controller. It has two voltage sensors and one temperature sensor.
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20250912120745.2295115-7-mwalle@kernel.org
[groeck: Added sa67 to index.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver supports Hardware monitor functionality for NCT6694 MFD
device based on USB interface.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-7-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Sensors driver for GPD Handhelds that expose fan reading and control via
hwmon sysfs.
Shenzhen GPD Technology Co., Ltd. manufactures a series of handheld
devices. This driver implements these functions through x86 port-mapped
IO.
Tested-by: Marcin Strągowski <marcin@stragowski.com>
Tested-by: someone5678 <someone5678.dev@gmail.com>
Tested-by: Justin Weiss <justin@justinweiss.com>
Tested-by: Antheas Kapenekakis <lkml@antheas.dev>
Tested-by: command_block <mtf@ik.me>
Tested-by: derjohn <himself@derjohn.de>
Tested-by: Crashdummyy <crashdummy1337@proton.me>
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://lore.kernel.org/r/20250908-gpd_fan-v9-1-7b4506c03953@uniontech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
INA700 is register compatible to INA780 but has different current, power,
and energy LSB values.
While the chip does not directly report the shunt voltage, report
it anyway by calculating its value from the current register.
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # INA780
Cc: Christian Kahr <christian.kahr@sie.at>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
INA780 is similar to the other chips in the series, but does not
support the shunt voltage register. Shunt voltage limit registers
have been renamed to current limit registers, but are otherwise
identical.
While the chip does not directly report the shunt voltage, report
it anyway by calculating its value from the current register.
Cc: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # INA780
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Update driver documentation and Kconfig entry to list all chips supported
by the driver.
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # INA780
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
