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Merge tag 'char-misc-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Browse Source 
Pull Char/Misc/IIO/Binder updates from Greg KH:
 "Here is the big set of char/misc/iio and other driver subsystem
  changes for 6.18-rc1.

  Loads of different stuff in here, it was a busy development cycle in
  lots of different subsystems, with over 27k new lines added to the
  tree.

  Included in here are:

   - IIO updates including new drivers, reworking of existing apis, and
     other goodness in the sensor subsystems

   - MEI driver updates and additions

   - NVMEM driver updates

   - slimbus removal for an unused driver and some other minor updates

   - coresight driver updates and additions

   - MHI driver updates

   - comedi driver updates and fixes

   - extcon driver updates

   - interconnect driver additions

   - eeprom driver updates and fixes

   - minor UIO driver updates

   - tiny W1 driver updates

  But the majority of new code is in the rust bindings and additions,
  which includes:

   - misc driver rust binding updates for read/write support, we can now
     write "normal" misc drivers in rust fully, and the sample driver
     shows how this can be done.

   - Initial framework for USB driver rust bindings, which are disabled
     for now in the build, due to limited support, but coming in through
     this tree due to dependencies on other rust binding changes that
     were in here. I'll be enabling these back on in the build in the
     usb.git tree after -rc1 is out so that developers can continue to
     work on these in linux-next over the next development cycle.

   - Android Binder driver implemented in Rust.

     This is the big one, and was driving a huge majority of the rust
     binding work over the past years. Right now there are two binder
     drivers in the kernel, selected only at build time as to which one
     to use as binder wants to be included in the system at boot time.

     The binder C maintainers all agreed on this, as eventually, they
     want the C code to be removed from the tree, but it will take a few
     releases to get there while both are maintained to ensure that the
     rust implementation is fully stable and compliant with the existing
     userspace apis.

  All of these have been in linux-next for a while"

* tag 'char-misc-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (320 commits)
  rust: usb: keep usb::Device private for now
  rust: usb: don't retain device context for the interface parent
  USB: disable rust bindings from the build for now
  samples: rust: add a USB driver sample
  rust: usb: add basic USB abstractions
  coresight: Add label sysfs node support
  dt-bindings: arm: Add label in the coresight components
  coresight: tnoc: add new AMBA ID to support Trace Noc V2
  coresight: Fix incorrect handling for return value of devm_kzalloc
  coresight: tpda: fix the logic to setup the element size
  coresight: trbe: Return NULL pointer for allocation failures
  coresight: Refactor runtime PM
  coresight: Make clock sequence consistent
  coresight: Refactor driver data allocation
  coresight: Consolidate clock enabling
  coresight: Avoid enable programming clock duplicately
  coresight: Appropriately disable trace bus clocks
  coresight: Appropriately disable programming clocks
  coresight: etm4x: Support atclk
  coresight: catu: Support atclk
  ...
This commit is contained in:
Linus Torvalds
2025-10-04 16:26:32 -07:00
parent 59697e061f 22d693e45d
commit 6093a688a0
467 changed files with 27363 additions and 3825 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-cti
View File

@@ -239,3 +239,9 @@ Date: March 2020
KernelVersion: 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Clear all channel / trigger programming.
What: /sys/bus/coresight/devices/<cti-name>/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-dummy-source
View File

@@ -13,3 +13,9 @@ KernelVersion: 6.14
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (R) Show the trace ID that will appear in the trace stream
coming from this trace entity.
What: /sys/bus/coresight/devices/dummy_source<N>/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-etb10
View File

@@ -19,6 +19,12 @@ Description: (RW) Disables write access to the Trace RAM by stopping the
into the Trace RAM following the trigger event is equal to the
value stored in this register+1 (from ARM ETB-TRM).
What: /sys/bus/coresight/devices/<memory_map>.etb/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rdp
Date: March 2016
KernelVersion: 4.7

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
View File

@@ -251,6 +251,12 @@ KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RO) Holds the cpu number this tracer is affined to.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmccr
Date: September 2015
KernelVersion: 4.4

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
View File

@@ -329,6 +329,12 @@ Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Access the selected single show PE comparator control
register.
What: /sys/bus/coresight/devices/etm<N>/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcoslsr
Date: April 2015
KernelVersion: 4.01

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-funnel
View File

@@ -10,3 +10,9 @@ Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Defines input port priority order.
What: /sys/bus/coresight/devices/<memory_map>.funnel/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
View File

@@ -51,3 +51,9 @@ KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Holds the trace ID that will appear in the trace stream
coming from this trace entity.
What: /sys/bus/coresight/devices/<memory_map>.stm/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc
View File

@@ -107,3 +107,9 @@ Contact: Anshuman Khandual <anshuman.khandual@arm.com>
Description: (RW) Current Coresight TMC-ETR buffer mode selected. But user could
only provide a mode which is supported for a given ETR device. This
file is available only for TMC ETR devices.
What: /sys/bus/coresight/devices/<memory_map>.tmc/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
View File

@@ -272,3 +272,9 @@ KernelVersion 6.15
Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
Description:
(RW) Set/Get the enablement of the individual lane.
What: /sys/bus/coresight/devices/<tpdm-name>/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.

6
Documentation/ABI/testing/sysfs-bus-coresight-devices-trbe
View File

@@ -12,3 +12,9 @@ Contact: Anshuman Khandual <anshuman.khandual@arm.com>
Description: (Read) Shows if TRBE updates in the memory are with access
and dirty flag updates as well. This value is fetched from
the TRBIDR register.
What: /sys/bus/coresight/devices/trbe<cpu>/label
Date: Aug 2025
KernelVersion 6.18
Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
Description: (Read) Show hardware context information of device.

8
Documentation/ABI/testing/sysfs-bus-counter
View File

@@ -309,26 +309,26 @@ Description:
What: /sys/bus/counter/devices/counterX/cascade_counts_enable_component_id
What: /sys/bus/counter/devices/counterX/external_input_phase_clock_select_component_id
What: /sys/bus/counter/devices/counterX/countY/compare_component_id
What: /sys/bus/counter/devices/counterX/countY/capture_component_id
What: /sys/bus/counter/devices/counterX/countY/ceiling_component_id
What: /sys/bus/counter/devices/counterX/countY/floor_component_id
What: /sys/bus/counter/devices/counterX/countY/compare_component_id
What: /sys/bus/counter/devices/counterX/countY/count_mode_component_id
What: /sys/bus/counter/devices/counterX/countY/direction_component_id
What: /sys/bus/counter/devices/counterX/countY/enable_component_id
What: /sys/bus/counter/devices/counterX/countY/error_noise_component_id
What: /sys/bus/counter/devices/counterX/countY/floor_component_id
What: /sys/bus/counter/devices/counterX/countY/num_overflows_component_id
What: /sys/bus/counter/devices/counterX/countY/prescaler_component_id
What: /sys/bus/counter/devices/counterX/countY/preset_component_id
What: /sys/bus/counter/devices/counterX/countY/preset_enable_component_id
What: /sys/bus/counter/devices/counterX/countY/signalZ_action_component_id
What: /sys/bus/counter/devices/counterX/countY/num_overflows_component_id
What: /sys/bus/counter/devices/counterX/signalY/cable_fault_component_id
What: /sys/bus/counter/devices/counterX/signalY/cable_fault_enable_component_id
What: /sys/bus/counter/devices/counterX/signalY/filter_clock_prescaler_component_id
What: /sys/bus/counter/devices/counterX/signalY/frequency_component_id
What: /sys/bus/counter/devices/counterX/signalY/index_polarity_component_id
What: /sys/bus/counter/devices/counterX/signalY/polarity_component_id
What: /sys/bus/counter/devices/counterX/signalY/synchronous_mode_component_id
What: /sys/bus/counter/devices/counterX/signalY/frequency_component_id
KernelVersion: 5.16
Contact: linux-iio@vger.kernel.org
Description:

100
Documentation/ABI/testing/sysfs-bus-i2c-devices-m24lr Normal file
View File

@@ -0,0 +1,100 @@
What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/unlock
Date: 2025-07-04
KernelVersion: 6.17
Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
Description:
Write-only attribute used to present a password and unlock
access to protected areas of the M24LR chip, including
configuration registers such as the Sector Security Status
(SSS) bytes. A valid password must be written to enable write
access to these regions via the I2C interface.
Format:
- Hexadecimal string representing a 32-bit (4-byte) password
- Accepts 1 to 8 hex digits (e.g., "c", "1F", "a1b2c3d4")
- No "0x" prefix, whitespace, or trailing newline
- Case-insensitive
Behavior:
- If the password matches the internal stored value,
access to protected memory/configuration is granted
- If the password does not match the internally stored value,
it will fail silently
What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/new_pass
Date: 2025-07-04
KernelVersion: 6.17
Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
Description:
Write-only attribute used to update the password required to
unlock the M24LR chip.
Format:
- Hexadecimal string representing a new 32-bit password
- Accepts 1 to 8 hex digits (e.g., "1A", "ffff", "c0ffee00")
- No "0x" prefix, whitespace, or trailing newline
- Case-insensitive
Behavior:
- Overwrites the current password stored in the I2C password
register
- Requires the device to be unlocked before changing the
password
- If the device is locked, the write silently fails
What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/uid
Date: 2025-07-04
KernelVersion: 6.17
Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
Description:
Read-only attribute that exposes the 8-byte unique identifier
programmed into the M24LR chip at the factory.
Format:
- Lowercase hexadecimal string representing a 64-bit value
- 1 to 16 hex digits (e.g., "e00204f12345678")
- No "0x" prefix
- Includes a trailing newline
What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/total_sectors
Date: 2025-07-04
KernelVersion: 6.17
Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
Description:
Read-only attribute that exposes the total number of EEPROM
sectors available in the M24LR chip.
Format:
- 1 to 2 hex digits (e.g. "F")
- No "0x" prefix
- Includes a trailing newline
Notes:
- Value is encoded by the chip and corresponds to the EEPROM
size (e.g., 3 = 4 kbit for M24LR04E-R)
What: /sys/bus/i2c/devices/<busnum>-<primary-addr>/sss
Date: 2025-07-04
KernelVersion: 6.17
Contact: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
Description:
Read/write binary attribute representing the Sector Security
Status (SSS) bytes for all EEPROM sectors in STMicroelectronics
M24LR chips.
Each EEPROM sector has one SSS byte, which controls I2C and
RF access through protection bits and optional password
authentication.
Format:
- The file contains one byte per EEPROM sector
- Byte at offset N corresponds to sector N
- Binary access only; use tools like dd, Python, or C that
support byte-level I/O and offset control.
Notes:
- The number of valid bytes in this file is equal to the
value exposed by 'total_sectors' file
- Write access requires prior password authentication in
I2C mode
- Refer to the M24LR datasheet for full SSS bit layout

56
Documentation/ABI/testing/sysfs-bus-iio
View File

@@ -167,7 +167,18 @@ Description:
is required is a consistent labeling. Units after application
of scale and offset are millivolts.
What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_rms_raw
KernelVersion: 6.18
Contact: linux-iio@vger.kernel.org
Description:
Raw (unscaled) Root Mean Square (RMS) voltage measurement from
channel Y. Units after application of scale and offset are
millivolts.
What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw
What: /sys/bus/iio/devices/iio:deviceX/in_powerY_active_raw
What: /sys/bus/iio/devices/iio:deviceX/in_powerY_reactive_raw
What: /sys/bus/iio/devices/iio:deviceX/in_powerY_apparent_raw
KernelVersion: 4.5
Contact: linux-iio@vger.kernel.org
Description:
@@ -176,6 +187,13 @@ Description:
unique to allow association with event codes. Units after
application of scale and offset are milliwatts.
What: /sys/bus/iio/devices/iio:deviceX/in_powerY_powerfactor
KernelVersion: 6.18
Contact: linux-iio@vger.kernel.org
Description:
Power factor measurement from channel Y. Power factor is the
ratio of active power to apparent power. The value is unitless.
What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
KernelVersion: 3.2
Contact: linux-iio@vger.kernel.org
@@ -1569,6 +1587,9 @@ Description:
What: /sys/.../iio:deviceX/in_energy_input
What: /sys/.../iio:deviceX/in_energy_raw
What: /sys/.../iio:deviceX/in_energyY_active_raw
What: /sys/.../iio:deviceX/in_energyY_reactive_raw
What: /sys/.../iio:deviceX/in_energyY_apparent_raw
KernelVersion: 4.0
Contact: linux-iio@vger.kernel.org
Description:
@@ -1707,6 +1728,14 @@ Description:
component of the signal while the 'q' channel contains the quadrature
component.
What: /sys/bus/iio/devices/iio:deviceX/in_altcurrentY_rms_raw
KernelVersion: 6.18
Contact: linux-iio@vger.kernel.org
Description:
Raw (unscaled no bias removal etc.) Root Mean Square (RMS) current
measurement from channel Y. Units after application of scale and
offset are milliamps.
What: /sys/.../iio:deviceX/in_energy_en
What: /sys/.../iio:deviceX/in_distance_en
What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
@@ -2281,21 +2310,28 @@ Description:
conversion time. Poor noise performance.
* "sinc3" - The digital sinc3 filter. Moderate 1st
conversion time. Good noise performance.
* "sinc4" - Sinc 4. Excellent noise performance. Long
1st conversion time.
* "sinc5" - The digital sinc5 filter. Excellent noise
performance
* "sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion
time.
* "sinc3+rej60" - Sinc3 + 60Hz rejection.
* "sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion
time.
* "sinc3+pf1" - Sinc3 + device specific Post Filter 1.
* "sinc3+pf2" - Sinc3 + device specific Post Filter 2.
* "sinc3+pf3" - Sinc3 + device specific Post Filter 3.
* "sinc3+pf4" - Sinc3 + device specific Post Filter 4.
* "sinc5+pf1" - Sinc5 + device specific Post Filter 1.
* "sinc3+rej60" - Sinc3 + 60Hz rejection.
* "sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion
time.
* "sinc4" - Sinc 4. Excellent noise performance. Long
1st conversion time.
* "sinc4+lp" - Sinc4 + Low Pass Filter.
* "sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion
time.
* "sinc4+rej60" - Sinc4 + 60Hz rejection.
* "sinc5" - The digital sinc5 filter. Excellent noise
performance
* "sinc5+avg" - Sinc5 + averaging by 4.
* "sinc5+pf1" - Sinc5 + device specific Post Filter 1.
* "sinc5+sinc1" - Sinc5 + Sinc1.
* "sinc5+sinc1+pf1" - Sinc5 + Sinc1 + device specific Post Filter 1.
* "sinc5+sinc1+pf2" - Sinc5 + Sinc1 + device specific Post Filter 2.
* "sinc5+sinc1+pf3" - Sinc5 + Sinc1 + device specific Post Filter 3.
* "sinc5+sinc1+pf4" - Sinc5 + Sinc1 + device specific Post Filter 4.
* "wideband" - filter with wideband low ripple passband
and sharp transition band.

10
Documentation/ABI/testing/sysfs-bus-iio-cros-ec
View File

@@ -7,16 +7,6 @@ Description:
corresponding calibration offsets can be read from `*_calibbias`
entries.
What: /sys/bus/iio/devices/iio:deviceX/location
Date: July 2015
KernelVersion: 4.7
Contact: linux-iio@vger.kernel.org
Description:
This attribute returns a string with the physical location where
the motion sensor is placed. For example, in a laptop a motion
sensor can be located on the base or on the lid. Current valid
values are 'base' and 'lid'.
What: /sys/bus/iio/devices/iio:deviceX/id
Date: September 2017
KernelVersion: 4.14