linux-toradex.git/drivers/char, branch master

Merge tag 'platform-drivers-x86-v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2026-06-23T15:31:33+00:00

Pull x86 platform driver updates from Ilpo Järvinen:

 - amd/hfi: Add support for dynamic ranking tables (version 3)

 - amd/pmc:
     - Add PMC driver support for AMD 1Ah M80H SoC
     - Delay suspend for some Lenovo Laptops to avoid keyboard and lid
       switch problems after s2idle

 - arm64: qcom-hamoa-ec: Add Hamoa/Purwa/Glymur EC driver

 - asus-armoury: add support for G614PR, GA402NJ, GA403UM, and FX608JPR

 - asus-wmi: add keystone dongle support

 - dell-dw5826e: Add reset driver for DW5826e

 - dell-laptop: Fix rollback path

 - hp-wmi:
     - Add support for Omen 16-ap0xxx (board ID 8D26) and board ID 8B2F

 - intel-hid:
     - Add HP ProBook x360 440 G1 5 button array support
     - Prevent racing ACPI notify handlers

 - intel/pmc:
     - Add Nova Lake support
     - Rate-limit LTR scale-factor warning

 - intel-uncore-freq:
     - Expose instance ID in the sysfs
     - Fix current_freq_khz after CPU hotplug

 - intel/vsec: Restore BAR fallback for header walk

 - ISST: Restore SST-PP control to all domains

 - lenovo-wmi-*:
     - Add more CPU tunable attributes
     - Add GPU tunable attributes
     - Add WMI battery charge limiting

 - oxpec: add support for OneXPlayer Super X

 - sel3350-platform: Retain LED state on load and unload

 - surface: SAM: Add support for Surface Pro 12in

 - uniwill-laptop: Add support for battery charge modes

 - tools/power/x86/intel-speed-select: Harden daemon pidfile open

 - Major refactoring efforts:
     - ACPI driver to platform driver conversion
     - Converting drivers to use the improved WMI API

 - Miscellaneous cleanups / refactoring / improvements

* tag 'platform-drivers-x86-v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (115 commits)
  platform/x86/intel/pmc: Add NVL PCI IDs for SSRAM telemetry discovery
  platform/x86/intel/pmc/ssram: Make PMT registration optional
  platform/x86/intel/pmc/ssram: Add ACPI discovery scaffolding
  platform/x86/intel/pmc/ssram: Switch to static array with per-index probe state
  platform/x86/intel/pmc/ssram: Refactor DEVID/PWRMBASE extraction into helper
  platform/x86/intel/pmc/ssram: Add PCI platform data
  platform/x86/intel/pmc/ssram: Rename probe and PCI ID table for consistency
  platform/x86/intel/pmc: Add ACPI PWRM telemetry driver for Nova Lake S
  platform/x86/intel/pmc: Add PMC SSRAM Kconfig description
  platform/x86/intel/pmt: Unify header fetch and add ACPI source
  platform/x86/intel/pmt: Cache the telemetry discovery header
  platform/x86/intel/pmt: Pass discovery index instead of resource
  platform/x86/intel/pmt/telemetry: Move overlap check to post-decode hook
  platform/x86/intel/pmt/crashlog: Split init into pre-decode
  platform/x86/intel/pmt: Add pre/post decode hooks around header parsing
  modpost: Handle malformed WMI GUID strings
  platform/wmi: Make sysfs attributes const
  platform/wmi: Make wmi_bus_class const
  hwmon: (dell-smm) Use new buffer-based WMI API
  platform/x86: dell-ddv: Use new buffer-based WMI API
  ...

Merge tag 'for-next-tpm-7.2-rc1-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

2026-06-23T14:39:49+00:00

Pull tpm updates from Jarkko Sakkinen:
 "Only bug fixes"

* tag 'for-next-tpm-7.2-rc1-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: fix event_size output in tpm1_binary_bios_measurements_show
  tpm: tpm_crb_ffa: revert defered_probed when tpm_crb_ffa is built-in
  tpm: tpm2-sessions: wait for async KPP completion in tpm_buf_append_salt
  tpm: tpm_tis: Add settle time for some TPMs
  tpm: tpm_tis: store entire did_vid
  tpm_crb: Check ACPI_COMPANION() against NULL during probe
  tpm: tpm_tis_spi: Use wait_woken() in wait_for_tmp_stat()
  tpm: Initialize name_size_alg for non-NULL name in tpm_buf_append_name()
  tpm: restore timeout for key creation commands
  tpm: svsm: constify tpm_chip_ops

Merge tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-06-22T19:20:21+00:00

Pull misc driver updates from Greg KH:
 "Here is the big set of char, misc, iio, fpga, and other small driver
  subsystems changes for 7.2-rc1.

  Lots of little stuff in here, the majority being of course the IIO
  driver updates, as a list they are:

   - IIO driver updates and additions

   - GPIB driver bugfixes and cleanups

   - Android binder driver updates (rust and C version)

   - counter driver updates

   - MHI driver updates

   - mei driver updates

   - w1 driver updates

   - interconnect driver updates

   - Comedi driver fixes and updates

   - some obsolete char drivers removed (applicom and dtlk)

   - hwtracing driver updates

   - other tiny driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (406 commits)
  w1: ds2482: Use named initializers for arrays of i2c_device_data
  firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version
  firmware: stratix10-rsu: avoid blocking reboot_image sysfs when busy
  coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer()
  iio: adc: nxp-sar-adc: harden buffer ISR against per-channel read failure
  iio: chemical: scd30: Replace manual locking with RAII locking
  iio: light: tsl2591: remove unneeded tsl2591_compatible_als_persist_cycle()
  iio: dac: ad5686: create bus ops struct
  iio: dac: ad5686: cleanup doc header of local structs
  iio: dac: ad5686: add control_sync() for single-channel devices
  iio: dac: ad5686: add helpers to handle powerdown masks
  iio: dac: ad5686: add of_match table to the spi driver
  iio: dac: ad5686: drop enum id
  iio: dac: ad5686: remove redundant register definition
  iio: dac: ad5686: refactor include headers
  iio: adc: ad4080: fix AD4880 chip ID
  iio: light: veml3328: add support for new device
  dt-bindings: iio: light: veml6030: add veml3328
  fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
  fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region()
  ...

tpm: fix event_size output in tpm1_binary_bios_measurements_show

2026-06-21T01:25:28+00:00

Commit 186d124f07da ("tpm_eventlog.c: fix binary_bios_measurements")
split the output to write the endian-converted event header first and
then the variable-length event data.

However, the split was at sizeof(struct tcpa_event) - 1, even though
event_data was a zero-length array, and later a flexible array member,
both of which already excluded the event data.

Therefore, the current code writes the first three bytes of event_size
from the endian-converted header and then the last byte from the raw
header, which can emit a corrupted event_size on PPC64, where
do_endian_conversion() maps to be32_to_cpu().

Split one byte later to write the full endian-converted header first,
followed by the variable-length event->event_data.

Fixes: 186d124f07da ("tpm_eventlog.c: fix binary_bios_measurements")
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Thorsten Blum 
Signed-off-by: Jarkko Sakkinen

tpm: tpm_crb_ffa: revert defered_probed when tpm_crb_ffa is built-in

2026-06-21T01:25:28+00:00

commit 746d9e9f62a6 ("tpm: tpm_crb_ffa: try to probe tpm_crb_ffa when it's built-in")
probe tpm_crb_ffa forcefully when it's built-in to integrate with IMA.

However, IMA now provides the IMA_INIT_LATE_SYNC build option, which
initialises IMA at the late_initcall_sync level, so this change is no
longer required.

Signed-off-by: Yeoreum Yun 
Link: https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git/commit/?h=for-next/ffa/updates&id=cc7e8f21b9f0c229d68cf19a837cba82b5ac2d87 [0]
Link: https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git/commit/?h=for-next/ffa/updates&id=e659fc8e537c7a21d5d693d6f30d8852f2fa8d91 [1]
Link: https://lore.kernel.org/r/20260605144325.434436-5-yeoreum.yun@arm.com
Signed-off-by: Jarkko Sakkinen

tpm: tpm2-sessions: wait for async KPP completion in tpm_buf_append_salt

2026-06-21T01:25:28+00:00

tpm_buf_append_salt() in drivers/char/tpm/tpm2-sessions.c calls
crypto_kpp_generate_public_key() and crypto_kpp_compute_shared_secret()
without installing a completion callback, discards both return values,
and immediately frees the kpp_request via kpp_request_free(). When the
resolved ecdh-nist-p256 KPP backend is asynchronous (atmel-ecc, HPRE,
keembay-ocs), either operation returns -EINPROGRESS and the deferred
completion worker dereferences the freed request.

The path fires automatically from the hwrng_fillfn kernel thread via
tpm_get_random -> tpm2_get_random -> tpm2_start_auth_session ->
tpm_buf_append_salt on every entropy poll, without any userland action.

Install crypto_req_done as the completion callback, wrap both KPP
operations in crypto_wait_req(), and propagate errors to the caller.
The wait is a no-op for synchronous backends.

Fixes: 1085b8276bb4 ("tpm: Add the rest of the session HMAC API")
Cc: stable@vger.kernel.org # v6.10+
Signed-off-by: Michael Bommarito 
Assisted-by: Claude:claude-opus-4-7
Reviewed-by: Jarkko Sakkinen 
Signed-off-by: Jarkko Sakkinen

tpm: tpm_tis: Add settle time for some TPMs

2026-06-21T01:25:28+00:00

Some TPMs fail to grant locality when requested immediately after being
relinquished. In this case, the TPM_ACCESS_REQUEST_USE bit of the
TPM_ACCESS register is cleared immediately without setting
TPM_ACCESS_ACTIVE_LOCALITY.

This issue can be seen at boot since tpm_chip_start, called right
after locality is relinquished, will fail. This causes the probe to
fail:

tpm_tis MSFT0101:00: probe with driver tpm_tis failed with error -1

This occurs on some older Dell Latitudes. For the Nuvoton TPM used in
these machines, add a delay after locality is relinquished.

Signed-off-by: Jim Broadus 
Link: https://lore.kernel.org/r/20260526232245.5409-3-jbroadus@gmail.com
Signed-off-by: Jarkko Sakkinen

tpm: tpm_tis: store entire did_vid

2026-06-21T01:25:28+00:00

The entire 32 bit did_vid is read from the device, but only the 16 bit
vendor id portion was stored in the tpm_tis_data structure. Storing the
entire value allows the device id to be used to handle quirks. Printing
the vid and did in the error case also helps identify problem devices.

Signed-off-by: Jim Broadus 
Link: https://lore.kernel.org/r/20260526232245.5409-2-jbroadus@gmail.com
Signed-off-by: Jarkko Sakkinen

tpm_crb: Check ACPI_COMPANION() against NULL during probe

2026-06-21T01:25:28+00:00

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_COMPANION() check against NULL to the
tpm_crb driver.

Fixes: 48fe2cddc85c ("tpm_crb: Convert ACPI driver to a platform one")
Signed-off-by: Rafael J. Wysocki 
Link: https://lore.kernel.org/r/2848144.mvXUDI8C0e@rafael.j.wysocki
Reviewed-by: Jarkko Sakkinen 
Signed-off-by: Jarkko Sakkinen

tpm: tpm_tis_spi: Use wait_woken() in wait_for_tmp_stat()

2026-06-21T01:25:28+00:00

wait_event_interruptible_timeout() evaluates its condition after setting
the current task state to TASK_INTERRUPTIBLE.

With CONFIG_DEBUG_ATOMIC_SLEEP this triggers a warning when the IRQ wait
path is used:

    tpm_tis_status()
      tpm_tis_spi_read_bytes()
        tpm_tis_spi_transfer_full()
          spi_bus_lock()
            mutex_lock()

Address this with the following measures:

1. Call wait_tpm_stat_cond() only while tasking is running.
2. Use wait_woken() to wait for changes.

Cc: stable@vger.kernel.org # v4.19+
Cc: Linus Walleij 
Reported-by: Stefan Wahren 
Closes: https://lore.kernel.org/linux-integrity/6964bec7-3dbb-453b-89ef-9b990217a8b9@gmx.net/
Fixes: 1a339b658d9d ("tpm_tis_spi: Pass the SPI IRQ down to the driver")
Reviewed-by: Linus Walleij 
Tested-by: Stefan Wahren 
Signed-off-by: Jarkko Sakkinen