linux-toradex.git/Documentation/hwmon, branch master Linux kernel for Apalis and Colibri modules Merge tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2026-06-22T19:09:47+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-06-22T19:09:47+00:00 364f4a55c661641c02c86a849f0608d8fc3c0006 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 ... 
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
  ...
hwmon: temperature: add support for EMC1812 2026-06-10T19:49:57+00:00 Marius Cristea marius.cristea@microchip.com 2026-06-10T15:19:47+00:00 54b15c59a46f67c11dadd53ecb9a4d69ce6efe44 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> 
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>
hwmon: (pmbus/max34440): add support adpm12250 2026-06-10T13:12:18+00:00 Alexis Czezar Torreno alexisczezar.torreno@analog.com 2026-06-10T01:12:10+00:00 479bfeba2eb62666cd4b981c8e721c61dcf36e7d ADPM12250 is a quarter brick DC/DC Power Module. It is a high power non-isolated converter capable of delivering regulated 12V with continuous power level of 2500W. Uses PMBus. Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20260610-dev-adpm12250-v1-1-422760bb80da@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
ADPM12250 is a quarter brick DC/DC Power Module. It is a high power
non-isolated converter capable of delivering regulated 12V with
continuous power level of 2500W. Uses PMBus.

Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20260610-dev-adpm12250-v1-1-422760bb80da@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
hwmon: (ina238) Add update_interval_us attribute 2026-06-09T20:48:19+00:00 Ferdinand Schwenk ferdinand.schwenk@advastore.com 2026-06-09T19:43:12+00:00 b47f4a72c62f2db5995ee4c7adfcd876faadf328 The INA238 family supports eight conversion time steps from 50 us to 4120 us (SQ52206: 66 us to 8230 us). At the millisecond granularity of update_interval, the four shortest steps (50, 84, 150, 280 us) all round to the same value and cannot be individually selected. Add support for the generic update_interval_us attribute, which reports and programs the same ADC cycle time as update_interval but in microseconds, giving userspace full access to all conversion time steps. Both attributes reflect the total cycle time including the active averaging count: the reported value is the raw conversion time multiplied by the number of averaged samples, and writes apply the inverse mapping. Signed-off-by: Ferdinand Schwenk <ferdinand.schwenk@advastore.com> Link: https://lore.kernel.org/r/20260609-hwmon-ina238-update-interval-us-v2-v3-3-016b55567950@advastore.com [groeck: Fixed some multi-line alignment issues] Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
The INA238 family supports eight conversion time steps from 50 us to
4120 us (SQ52206: 66 us to 8230 us). At the millisecond granularity of
update_interval, the four shortest steps (50, 84, 150, 280 us) all
round to the same value and cannot be individually selected.

Add support for the generic update_interval_us attribute, which reports
and programs the same ADC cycle time as update_interval but in
microseconds, giving userspace full access to all conversion time steps.

Both attributes reflect the total cycle time including the active
averaging count: the reported value is the raw conversion time
multiplied by the number of averaged samples, and writes apply the
inverse mapping.

Signed-off-by: Ferdinand Schwenk <ferdinand.schwenk@advastore.com>
Link: https://lore.kernel.org/r/20260609-hwmon-ina238-update-interval-us-v2-v3-3-016b55567950@advastore.com
[groeck: Fixed some multi-line alignment issues]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
hwmon: Add update_interval_us chip attribute 2026-06-09T20:48:19+00:00 Ferdinand Schwenk ferdinand.schwenk@advastore.com 2026-06-09T19:43:11+00:00 82508141450d90a6d92a14e93e5a00ffb193f5e0 Some hardware monitoring chips support update intervals below one millisecond. The existing update_interval attribute uses millisecond granularity, which causes sub-millisecond steps to round to the same value and become inaccessible from userspace. Introduce update_interval_us, a companion chip-level attribute that expresses the same update interval in microseconds. Drivers implementing this attribute should also implement update_interval for compatibility with millisecond-based userspace interfaces. Signed-off-by: Ferdinand Schwenk <ferdinand.schwenk@advastore.com> Link: https://lore.kernel.org/r/20260609-hwmon-ina238-update-interval-us-v2-v3-2-016b55567950@advastore.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
Some hardware monitoring chips support update intervals below one
millisecond. The existing update_interval attribute uses millisecond
granularity, which causes sub-millisecond steps to round to the same
value and become inaccessible from userspace.

Introduce update_interval_us, a companion chip-level attribute that
expresses the same update interval in microseconds. Drivers
implementing this attribute should also implement update_interval for
compatibility with millisecond-based userspace interfaces.

Signed-off-by: Ferdinand Schwenk <ferdinand.schwenk@advastore.com>
Link: https://lore.kernel.org/r/20260609-hwmon-ina238-update-interval-us-v2-v3-2-016b55567950@advastore.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
hwmon: ltc4283: Add support for the LTC4283 Swap Controller 2026-06-09T15:28:55+00:00 Nuno Sá nuno.sa@analog.com 2026-05-02T09:56:53+00:00 dd63353a0b5ef05a248df4c6db566b93bff0d843 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> 
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>
hwmon: (asus-ec-sensors) add ROG MAXIMUS Z790 EXTREME 2026-06-09T15:23:18+00:00 Brian Downey bdowne01@gmail.com 2026-06-08T06:08:41+00:00 5f6617089dc06f9941e8ca57ba64345c9f1ed9ed Add support for ROG MAXIMUS Z790 EXTREME Signed-off-by: Brian Downey <bdowne01@gmail.com> Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Link: https://lore.kernel.org/r/20260608060855.40469-1-eugene.shalygin@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
Add support for ROG MAXIMUS Z790 EXTREME

Signed-off-by: Brian Downey <bdowne01@gmail.com>
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20260608060855.40469-1-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
hwmon: (pmbus/max20860a) Add driver for Analog Devices MAX20860A 2026-06-09T15:23:18+00:00 Syed Arif arif.syed@hpe.com 2026-06-01T18:45:36+00:00 9e8475a02b4ac18d0d46318522d4f6980da8f72a Add a PMBus driver for the Analog Devices MAX20860A step-down DC-DC switching regulator. The MAX20860A provides monitoring of input/output voltage, output current, and temperature via the PMBus interface using linear data format. Optional regulator support is available via CONFIG_SENSORS_MAX20860A_REGULATOR. Signed-off-by: Syed Arif <arif.syed@hpe.com> Signed-off-by: Sanman Pradhan <psanman@juniper.net> Link: https://lore.kernel.org/r/20260601184516.919488-3-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
Add a PMBus driver for the Analog Devices MAX20860A step-down DC-DC
switching regulator. The MAX20860A provides monitoring of input/output
voltage, output current, and temperature via the PMBus interface using
linear data format. Optional regulator support is available via
CONFIG_SENSORS_MAX20860A_REGULATOR.

Signed-off-by: Syed Arif <arif.syed@hpe.com>
Signed-off-by: Sanman Pradhan <psanman@juniper.net>
Link: https://lore.kernel.org/r/20260601184516.919488-3-sanman.pradhan@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
hwmon: (pmbus) Add support for Flex BMR316, BMR321, BMR350 and BMR351 2026-06-09T15:23:17+00:00 Daniel Nilsson linux@erq.se 2026-06-03T08:57:12+00:00 cd447db64f703d12647fc3a809aa3b47505533c8 Add support for BMR316, BMR321, BMR350 and BMR351 DC/DC converter modules from Flex to the pmbus driver. Signed-off-by: Daniel Nilsson <linux@erq.se> Link: https://lore.kernel.org/r/20260603085712.659432-2-linux@erq.se [groeck: Resolved conflicts (explicit struct members in pmbus_id)] Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
Add support for BMR316, BMR321, BMR350 and BMR351 DC/DC converter
modules from Flex to the pmbus driver.

Signed-off-by: Daniel Nilsson <linux@erq.se>
Link: https://lore.kernel.org/r/20260603085712.659432-2-linux@erq.se
[groeck: Resolved conflicts (explicit struct members in pmbus_id)]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
hwmon: (asus-ec-sensors) add ROG STRIX B850-E GAMING WIFI 2026-06-09T15:23:09+00:00 Eugene Shalygin eugene.shalygin@gmail.com 2026-06-07T12:36:16+00:00 5e9f31543515d685cafed33274433b6360c0e1e4 The board has a similar sensor configuration to the ROG STRIX B850-I GAMING WIFI, but includes an additional T-Sensor header. The patch was provided via GitHub [1]. [1] https://github.com/zeule/asus-ec-sensors/pull/105 Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Link: https://lore.kernel.org/r/20260607123626.100630-1-eugene.shalygin@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
The board has a similar sensor configuration to the
ROG STRIX B850-I GAMING WIFI, but includes an additional
T-Sensor header. The patch was provided via GitHub [1].

[1] https://github.com/zeule/asus-ec-sensors/pull/105

Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20260607123626.100630-1-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>