linux-toradex.git/drivers/hwmon/Kconfig, branch master

Merge tag 'char-misc-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-08-25T16:38:50+00:00

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
  ...

Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

2026-08-23T20:28:57+00:00

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
  ...

hwmon: (asus_rog_ryujin) Add ROG Ryujin III support

2026-08-14T18:20:54+00:00

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 
Reviewed-by: Aleksa Savic 
Link: https://lore.kernel.org/r/20260812103532.395049-3-renari@arimil.com
Signed-off-by: Guenter Roeck

hwmon: (corsair-psu) Update documentation

2026-08-10T15:59:43+00:00

Add information about the HX1500i 2025 series and fix the missing
HX1500i in Kbuild.

Signed-off-by: Wilken Gottwalt 
Link: https://lore.kernel.org/r/anVuBd8Bb7T66OUO@monster.localdomain
Signed-off-by: Guenter Roeck

hwmon: (adt7470) Expose fan control via PWM framework

2026-08-10T15:59:43+00:00

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 
Link: https://lore.kernel.org/r/20260805-adt7470_thermalzone-v6-3-5605a5f95467@gmail.com
Signed-off-by: Guenter Roeck

hwmon: remove tautological dependency expressions from Kconfig

2026-08-10T15:59:42+00:00

Commit 554b3529fe01 ("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 f37353320ee9 ("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 4f8d374b770a
("hwmon: (max6650) add thermal cooling device capability"), which was
independent of the above-noted series, and another by commit 9855caf5d4eb
("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 
Cc: Cristian Marussi 
Cc: Guenter Roeck 
Cc: Heiko Stuebner 
Cc: Joel Stanley 
Cc: Sudeep Holla 
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 
Link: https://lore.kernel.org/r/20260729215436.2103380-1-laszlo.ersek@arm.com
Signed-off-by: Guenter Roeck

hwmon: (kb9002) Add driver for Kandou KB9002 retimer

2026-08-10T15:59:42+00:00

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 
Link: https://lore.kernel.org/r/20260724-kb9002-upstream-v5-3-9523c3ffe83a@amd.com
Signed-off-by: Guenter Roeck

hwmon: (gxp_fan_ctrl) Provide fan info via gpio

2026-08-10T15:59:42+00:00

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 
Reviewed-by: Guenter Roeck 
Link: https://lore.kernel.org/r/20230705194544.100370-5-nick.hawkins@hpe.com
Signed-off-by: Guenter Roeck

hwmon: (sht3x) Document support for GXCAS GXHT30

2026-08-10T15:59:41+00:00

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 
Link: https://lore.kernel.org/r/20260713074559.12196-5-zaixiang.xu.dev@gmail.com
Signed-off-by: Guenter Roeck

hwmon: Add Eswin EIC7700 PVT sensor driver

2026-08-10T15:59:40+00:00

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 
Signed-off-by: Huan He 
Signed-off-by: Xuyang Dong 
Link: https://lore.kernel.org/r/20260630091220.1608-1-dongxuyang@eswincomputing.com
Signed-off-by: Guenter Roeck