platform/x86: int3472: For mt9m114 sensors map powerdown to powerenable

mt9m114 atomisp designs declare both reset and powerdown pins in their
GPIO type DSM, but the mt9m114 only has a reset pin. The powerdown pin
seems to control the regulators suppyling power to the sensor and
the privacy LED.

Add a mapping of powerdown to powerenable for the mt9m114 for this.

While at is also add a comment to document the ov7251 mapping.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250507184737.154747-6-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Remove unused sensor_config struct member

sensor_config is not used anywhere and its struct int3472_sensor_config
type also is not declared anywhere, drop it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250507184737.154747-5-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Export int3472_discrete_parse_crs()

At the moment the atomisp has duplicate code for parsing Intel camera
sensor GPIOS and calling the special 79234640-9e10-4fea-a5c1-b5aa8b19756f
_DSM to get the GPIO type and map it to the sensor.

Export int3472_discrete_parse_crs() so that the atomisp driver can reuse
the INT3472 code for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250507184737.154747-4-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Stop using devm_gpiod_get()

The intent is to re-use the INT3472 code for parsing Intel camera sensor
GPIOs and mapping them to the sensor for the atomisp driver, which
currently has duplicate code.

On atomisp devices there is no special INT3472 ACPI device, instead
the Intel _DSM to get the GPIO type is part of the ACPI device for
the sensor itself.

To deal with this the mapping is done from ipu_bridge_init() instead of
from a platform-device probe() function, there is no device to tie
the lifetime of the gpiod_get() calls done by the INT3472 code to.

Switch from devm_gpiod_get() to plain gpiod_get() + explicit gpiod_put()
calls, to prepare for the code being re-used in the atomisp driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250507184737.154747-3-hdegoede@redhat.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Move common.h to public includes, symbols to INTEL_INT3472

Move the common.h header file to include/linux/platform_data/x86/int3472.h
and add a "INTEL_INT3472" kernel-symbol-namespace to the exported symbols.

This is a preparation patch for exporting some more symbols for re-use in
the atomisp driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250507184737.154747-2-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: thinkpad-acpi: Add support for new hotkey for camera shutter switch

New Lenovo Thinkpad models, e.g. the 'X9-14 Gen 1' and 'X9-15 Gen 1'
has new shortcut on F9 key i.e to switch camera shutter and it
send a new 0x131b hkey event when F9 key is pressed.

This commit adds support for new hkey 0x131b.

Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Nitin Joshi <nitjoshi@gmail.com>
Link: https://lore.kernel.org/r/20250505150152.27968-1-nitjoshi@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86/sony-laptop: Remove unused sony laptop camera code

commit ba47652ba655 ("media: meye: remove this deprecated driver")
removed the meye driver but left behind the code in sony-laptop.c
which that driver used to call.

Remove the sony_pic_camera_command() function, and the set of
defines (SONY_PIC_COMMAND_*) in a header used for the interface
and the static helpers it called.

Cleanup remaining #defines.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20250505152558.40526-1-linux@treblig.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: ISST: Do Not Restore SST MSRs on CPU Online Operation

During CPU offline/online operations, the hardware retains MSR settings.
Even if all CPUs are offlined, the package does not lose its MSR
settings.

Therefore, it is unnecessary to restore MSRs which are modified during
the online operation, and this extra step can be removed.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250505202722.1048675-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: ISST: Update minor version

Update SST minor version after supporting SST-PP and SST-TF version 2.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250506163531.1061185-4-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: ISST: Support SST-PP revision 2

SST PP revision 2 added fabric 1 P0, P1 and Pm frequencies. Export them
by using a new IOCTL ISST_IF_GET_PERF_LEVEL_FABRIC_INFO. This IOCTL
requires platforms with SST PP revision 2 or higher.

To accommodate potential future increases in fabric count and avoid ABI
changes, support is extended for up to 8 fabrics.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250506163531.1061185-3-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: ISST: Support SST-TF revision 2

SST-TF revision 2 supports a higher number of cores per bucket, as the
current limit of 256 cores may be insufficient. To accommodate this, a
new offset, "SST_TF_INFO-8," is introduced, allowing for a higher core
count. Utilize this offset instead of the current "SST_TF_INFO-1" offset,
based on SST-TF revision 2 or higher, and if there is a non-zero core
count in any bucket.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250506163531.1061185-2-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Documentation: wmi: alienware-wmi: Add GPIO control documentation

Add documentation for the GPIO control methods.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250505-awcc-gpio-v4-2-edda44c3a0dc@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Expose GPIO debug methods

Expose GPIO control methods present on the AWCC interface through
DebugFS.

These models come with an RGB lighting STM32 MCU, which usually has two
GPIO pins with debug capabilities:

 - Pin 0: Device Firmware Update mode (DFU)
 - Pin 1: Negative Reset (NRST)

Suggested-by: Gabriel Marcano <gabemarcano@yahoo.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250505-awcc-gpio-v4-1-edda44c3a0dc@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86/tuxedo: Add virtual LampArray for TUXEDO NB04 devices

The TUXEDO Sirius 16 Gen1 and TUXEDO Sirius 16 Gen2 devices have a per-key
controllable RGB keyboard backlight. The firmware API for it is implemented
via WMI.

To make the backlight userspace configurable this driver emulates a
LampArray HID device and translates the input from hidraw to the
corresponding WMI calls. This is a new approach as the leds subsystem lacks
a suitable UAPI for per-key keyboard backlights, and like this no new UAPI
needs to be established.

The handle_* functions an corresponding structs are named based on the HID
spec: HID Usage Tables 1.6 -> 26 Lighting And Illumination Page (0x59)

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Link: https://lore.kernel.org/r/20250425210043.342288-2-wse@tuxedocomputers.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: asus-wmi: Refactor Ally suspend/resume

Adjust how the CSEE direct call hack is used.

The results of months of testing combined with help from ASUS to
determine the actual cause of suspend issues has resulted in this
refactoring which immensely improves the reliability for devices which
do not have the following minimum MCU FW version:
- ROG Ally X: 313
- ROG Ally 1: 319

For MCU FW versions that match the minimum or above the CSEE hack is
disabled and mcu_powersave set to on by default as there are no
negatives beyond a slightly slower device reinitialization due to the
MCU being powered off.

As this is set only at module load time, it is still possible for
mcu_powersave sysfs attributes to change it at runtime if so desired.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20250323023421.78012-3-luke@ljones.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

hid-asus: check ROG Ally MCU version and warn

ASUS have fixed suspend issues arising from a flag not being cleared in
the MCU FW in both the ROG Ally 1 and the ROG Ally X.

Implement a check and a warning to encourage users to update the FW to
a minimum supported version.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20250323023421.78012-2-luke@ljones.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Add support for the OneXPlayer G1

The OneXPlayer G1 is a new clamshell formfactor by OneXPlayer.
It has the same registers as an OneXPlayer X1, with the only
difference being the lack of a turbo led.

Tested-by: Joshua Tam <csinaction@pm.me>
Suggested-by: Joshua Tam <csinaction@pm.me>
Signed-off-by: Joshua Tam <csinaction@pm.me>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250426172955.13957-3-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Make turbo val apply a bitmask

On the OneXPlayer G1, the turbo register is multiplexed and contains an
extra bit (0x02) which is set on boot. Therefore, we should only change
the 0x40 bit to not affect other behavior. Collapse the disable and
enable functions, and apply a mask for the turbo bit instead.

Tested-by: Joshua Tam <csinaction@pm.me>
Suggested-by: Joshua Tam <csinaction@pm.me>
Signed-off-by: Joshua Tam <csinaction@pm.me>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250426172955.13957-2-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces

Add documentation for the new attributes:
- Request and response for access to protetced flashes:
  "global_wp_request", "global_wp_response".
  Only for systems equipped with BMC - grant can be provided only by
  BMC in case its security policy allows to grant access.
- Request to unlock ASICs, which has been shutdown due-to ASIC thermal
  event: "shutdown_unlock".
- Data processor Units (DPU) boot progress: "boot_progress".
- DPU reset causes: "reset_aux_pwr_or_reload", "reset_dpu_thermal",
  "reset_from_main_board".
- Reset control for DPU components: "perst_rst", "phy_rst", "tpm_rst",
  "usbphy_rst".
- DPU Unified Fabric Manager upgrade - "ufm_upgrade".
- Hardware Id of Data Process Unit board - "dpu_id".

Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20250504165507.9003-3-vadimp@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform: mellanox: nvsw-sn2200: Add support for new system flavour

Add support for SN2201 system flavour, which is fitting OCP rack
form-factor and feeded from external power source through the rack
standard busbar interface.

Validate system type through DMI decode.
For new system flavour:
- Skip internal power supply configuration.
- Attach power hotswap device.

Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20250504165507.9003-2-vadimp@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Add a lower bounds check in oxp_psy_ext_set_prop()

The "val->intval" variable is an integer which comes from the user.  This
code has an upper bounds check but the lower bounds check was
accidentally omitted.  The write_to_ec() take a u8 value as a parameter
so negative values would be truncated to positive values in the 0-255
range.

Return -EINVAL if the user passes a negative value.

Fixes: 202593d1e86b ("platform/x86: oxpec: Add charge threshold and behaviour to OneXPlayer")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/aBSE71VKfBlQg_fZ@stanley.mountain
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Improve pmc_core_get_lpm_req()

Minor improvements on pmc_core_get_lpm_req().
1. Move the long comment to be above the function
2. Use %pe to print error pointer
3. Remove unneeded devm_kfree call

These changes improves the code maintainability.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250425195237.493129-6-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Move error handling to init function

Move error handling code to generic_core_init() function. The previous
implementation is that init function called for "full cleanup" function
when error occurs which is error prone. The init function should handle
the error path itself to improve code maintainability.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250425195237.493129-5-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Use devm for mutex_init

Use devm_mutex_init() to avoid accidental resource leak in the
future.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250425195237.493129-4-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Create Intel PMC SSRAM Telemetry driver

Convert ssram device related functionalities to a new driver named Intel
PMC SSRAM Telemetry driver. Modify PMC Core driver to use API exported by
the driver to discover and achieve devid and PWRMBASE address information
for each available PMC. PMC Core driver needs to get PCI device when
reading from telemetry regions.

The new SSRAM driver binds to the SSRAM device and provides the following
functionalities:
1. Look for and register telemetry regions available in SSRAM device.
2. Provide devid and PWRMBASE address information for the corresponding
   PMCs.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250425195237.493129-3-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/vsec: Change return type of intel_vsec_register

Change return type of intel_vsec_register() to int. The current
implementation does not indicate if the register fail or not.
Change to return error code if it fails or if INTEL_VSEC config
is not set. This is a preparation step to introduce a new SSRAM
Telemetry driver that will be using this API.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250425195237.493129-2-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: Introduce dasharo-acpi platform driver

Introduce a driver for devices running Dasharo firmware. The driver
supports thermal monitoring using a new ACPI interface in Dasharo. The
initial version supports monitoring fan speeds, fan PWM duty cycles and
system temperatures as well as determining which specific interfaces are
implemented by firmware.

It has been tested on a NovaCustom laptop running pre-release Dasharo
firmware, which implements fan and thermal monitoring for the CPU and
the discrete GPU, if present.

Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Michał Kopeć <michal.kopec@3mdeb.com>
Link: https://lore.kernel.org/all/20250507075214.36729-1-lukas.bulwahn@redhat.com
Link: https://lore.kernel.org/r/20250425112147.69308-2-michal.kopec@3mdeb.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/mellanox: mlxbf-pmc: Support additional PMC blocks

Add list of events and counters from the following blocks: APT (ARM Processor
Tile), GGA (Global Generic Accelerator), MSN (Memory Stasher and Navigator),
EMI (External Memory Interface) and PRNF (PCIe Request Node).
If any of the fields populated from the ACPI table (like apt_num) cannot be
read, assign the corresponding block count to be 0 instead of failing probe
to maintain compatibility with older firmware.

Signed-off-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20250423083103.5240-1-shravankr@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Fix awcc_hwmon_fans_init() label logic

To avoid passing an uninitialized `temp_id` to awcc_get_fan_label(),
pass the `fan_temps` bitmap instead, to work only on set bits.

Additionally, awcc_get_fan_label() leaves `dev` unused, so remove it
from it's signature and it does not fail, so remove error handling.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202504250521.HEkFK1Jy-lkp@intel.com/
Fixes: d69990783495 ("platform/x86: alienware-wmi-wmax: Add HWMON support")
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250425-temp-id-fix-v1-2-372d71f732bf@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Fix uninitialized bitmap in awcc_hwmon_fans_init()

Initialize fan_temps bitmap to zero before using it for the first time
in each iteration.

Fixes: d69990783495 ("platform/x86: alienware-wmi-wmax: Add HWMON support")
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250425-temp-id-fix-v1-1-372d71f732bf@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform: mellanox: mlx-platform: Add support for new Nvidia system

Add support for SN5640 and SN5610 Nvidia switches:
- SN5610 is a 51.2Tbps switch based on Nvidia SPC-4 ASIC equipped with 64
  OSFP ports supporting 2.5Gbps - 400Gbps speeds.
- SN5640 is a 51.2Tbps switch based on Nvidia SPC-5 ASIC equipped with 64
  OSFP ports supporting 10Gbps - 800Gbps speeds.

Both equipped with:
- Air-cooled with 4 + 1 redundant fan units.
- 2 + 2 redundant 2000W PSUs.
- System management board based on AMD CPU with secure-boot support.

Reviewed-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20250421092051.7687-5-vadimp@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform: mellanox: Cosmetic changes to improve code style

Replace in 'for' loop - /i >= 0 ; i--/i >= 0 ;i--/.
Replace in 'while' loop - /(--i >= 0)/(--i)/.

Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250421092051.7687-4-vadimp@nvidia.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform: mellanox: Introduce support of Nvidia smart switch

Provide platform support for Nvidia Smart Switch SN4280.

The Smart Switch equipped with:
- Nvidia COME module based on AMD EPYC™ Embedded 3451 CPU.
- Nvidia Spectrum-3 ASIC.
- Four DPUs, each equipped with Nvidia BF3 ARM based processor and
  with Lattice LFD2NX-40 FPGA device.
- 28xQSFP-DD external ports.
- Two power supplies.
- Four cooling drawers.

Reviewed-by: Ciju Rajan K <crajank@nvidia.com>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250421092051.7687-3-vadimp@nvidia.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/mellanox: mlxreg-dpu: Add initial support for Nvidia DPU

Provide platform support for Nvidia (DPU) Data Processor Unit for the
Smart Switch SN4280.

The Smart Switch equipped with:
- Nvidia COME module based on AMD EPYC™ Embedded 3451 CPU.
- Nvidia Spectrum-3 ASIC.
- Four DPUs, each equipped with Nvidia BF3 ARM based processor and
  with Lattice LFD2NX-40 FPGA device.
- 28xQSFP-DD external ports.
- Two power supplies.
- Four cooling drawers.

Driver provides support for the platform management and monitoring
of DPU components. It includes support for: health events, resets and
boot progress indications logic, implemented by FPGA device.

Reviewed-by: Ciju Rajan K <crajank@nvidia.com>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
[ij: added depends on I2C]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250421092051.7687-2-vadimp@nvidia.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Convert defines to using tabs

The defines used spaces previously. Convert all of them to use tabs.

Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-17-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Rename rval to ret in tt_toggle

Rename the variable `rval` to `ret` in the function for consistency.

Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-16-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Add charge threshold and behaviour to OneXPlayer

With the X1 (AMD), OneXPlayer added a charge limit and charge inhibit
feature to their devices. Charge limit allows for choosing an arbitrary
battery charge setpoint in percentages. Charge ihibit allows to instruct
the device to stop charging either when it is awake or always.

This feature was then extended for the F1Pro as well. OneXPlayer also
released BIOS updates for the X1 Mini, X1 (Intel), and F1 devices that
add support for this feature. Therefore, enable it for all F1 and
X1 devices.

Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-15-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

power: supply: add inhibit-charge-awake to charge_behaviour

OneXPlayer devices have a charge inhibit feature that allows the user
to select between it being active always or only when the device is on.

Therefore, add attribute inhibit-charge-awake to charge_behaviour to
allow the user to select that charge should be paused only when the
device is awake.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-14-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Follow reverse xmas convention for tt_toggle

Since the rest of the driver follows this convention, apply it to the
tt_toggle attribute as well.

Suggested-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-13-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Adhere to sysfs-class-hwmon and enable pwm on 2

Currently, the driver does not adhere to the sysfs-class-hwmon
specification: 0 is used for auto fan control and 1 is used for manual
control. However, it is expected that 0 sets the fan to full speed,
1 sets the fan to manual, and then 2 is used for automatic control.

Therefore, change the sysfs API to reflect this and enable pwm on 2.

As we are breaking the ABI for this driver, rename oxpec to oxp_ec,
reflecting the naming convention used by other drivers, to allow for
a smooth migration in current userspace programs.

Closes: https://lore.kernel.org/linux-hwmon/20241027174836.8588-1-derekjohn.clark@gmail.com/
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-12-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Move fan speed read to separate function

While not necessary for fixing the ABI hwmon issue, fan speed will be
the only remaining value without a function. Therefore, finish the
refactor by moving it to a separate function.

Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-11-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Move pwm value read/write to separate functions

Currently, this driver breaks hwmon ABI by using auto as 0 and manual
as 1. However, for pwm_enable, 0 is full speed, 1 is manual, and 2 is
auto. For the correction to be possible, this means that the pwm_enable
endpoint will need access to both pwm enable and value (as for the 0th
value, the fan needs to be set to full power).

Therefore, move the pwm value read/write to separate functions.

Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-10-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Move pwm_enable read to its own function

Currently, this driver breaks ABI by using auto as 0 and manual as 1.
However, for pwm_enable, 0 is full speed, 1 is manual, and 2 is auto.
For the correction to be possible, this means that the pwm_enable
endpoint will need access to both pwm enable and value (as for the 0th
value, the fan needs to be set to full power).

Therefore, begin by moving the current pwm_enable read to its own
function, oxp_pwm_enable.

Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-9-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Add turbo led support to X1 devices

The X1 and X1 mini lineups feature an LED nested within their turbo
button. When turbo takeover is not enabled, the turbo button allows
the device to switch from 18W to 25W TDP. When the device is in the
25W TDP mode, the LED is turned on.

However, when we engage turbo takeover, the turbo led remains on its
last state, which might be illuminated and cannot be currently
controlled. Therefore, add the register that controls it under sysfs,
to allow userspace to turn it off once engaging turbo takeover and then
control it as they wish.

2024 OneXPlayer devices, other than the X1s, do not have a turbo LED.
However, earlier models do, so this can be extended to them as well
when the register for it is found.

Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-8-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Rename ec group to tt_toggle

Currently, the EC group is used for the turbo button. However, the next
patch in the series adds support for the LED button in X1 devices, which
is only applicable for X1 devices. Therefore, rename it to prepare for
adding the second group. And make it const while at it.

Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-7-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

ABI: testing: sysfs-class-oxp: add tt_led attribute documentation

Adds documentation about the tt_led attribute of OneXPlayer devices to
the sysfs-class-oxp ABI documentation.

Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-6-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

ABI: testing: sysfs-class-oxp: add missing documentation

Add missing documentation about the tt_toggle attribute that was added
in kernel 6.5.

Fixes: be144ee491272 ("hwmon: (oxp-sensors) Add tt_toggle attribute on supported boards")
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-5-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: oxpec: Move hwmon/oxp-sensors to platform/x86

The EC of OneXPlayer devices used to only control the fan. This is no
longer the case, with the EC of OneXPlayer gaining additional
functionality (turbo button, turbo led, battery controls).

As it will be beneficial from a complexity perspective to retain this
driver as a single unit, move it out of hwmon, and into platform/x86.
Also, remove the hwmon documentation to prepare moving it to
Documentation/ABI/.

While at it, add myself to the maintainer's file.

Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-4-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

hwmon: (oxp-sensors) Add all OneXFly variants

Currently, the driver only has the F1 OneXFly variant, which was based
on the 7000 AMD platform. Add its special editions: F1 EVA-01, F1 OLED.
F1 OLED might have been a dev unit, but it is supported by OneXConsole
with the same features so add it. Then add the F1L variant which is
based on the 8000 AMD platform and the F1Pro and its special edition
EVA-02.

One might ask why not just fuzzy match. Well, EVA-02 is a variant of
F1Pro which is a Strix Point handheld, but does not have F1Pro in its
name. This makes it risky to fuzzy match, as special variants in the
future from different platforms might not have the same feature set
or registers.

By happenstance, all current devices use the same registers. For the
charge limitting feature on this series, only F1Pro/X1 (AMD) were
released with it, but OneXPlayer is providing bios updates for F1, F1L,
X1 Mini units that use the same register, so treat all of them the same.

Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-3-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

hwmon: (oxp-sensors) Distinguish the X1 variants

Currently, the oxp-sensors driver fuzzy matches the X1 variants. Luckily,
X1 and X1 mini share most hardware features so this works. However, they
are completely different product lines, and there is an expectation that
OneXPlayer will release more devices in the X1 line that may have
differences.

Therefore, distinguish the 3 devices that currently exist in the market.
These are the OneXPlayer X1 AMD and Intel variants, and the X1 mini which
only has an AMD variant. As far as registers go, all three support the
current driver functionality.

Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250425111821.88746-2-lkml@antheas.dev
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Debug log when remapping pins

Debug log when remapping a pin/function because of a int3472_gpio_map[]
match.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-10-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Add handshake pin support

New Intel Meteor Lake based laptops with IPU6 cameras have a new type 0x12
pin defined in the INT3472 sensor companion device which describes
the sensor's GPIOs.

This pin is primarily used on designs with a Lattice FPGA chip which is
capable of running the sensor independently of the main CPU for features
like presence detection. This pin needs to be driven high to make the FPGA
run the power-on sequence of the sensor. After driving the pin high,
the FPGA "firmware" needs 25ms to complete the power-on sequence.

Add support for this modelling the handshake pin as a GPIO driven "dvdd"
regulator with a 25 ms enable time. This model was chosen because:

1. Sensor chips don't have a handshake pin, so we need to abstract this
   in some way which does not require modification to the sensor drivers,
   sensor drivers using the bulk-regulator API to get avdd + vddio + dvdd
   is normal. So this will work to get the right value set to the handshake
   pin without requiring sensor driver modifications.

2. Sensors typically wait only a small time for the sensor to power-on
   after de-asserting reset. Not the 25ms the Lattice chip requires.
   Using the regulator framework's enable_time allows hiding the need for
   this delay from the sensor drivers.

Link: https://lore.kernel.org/platform-driver-x86/59f672c3-6d87-4ec7-9b7f-f44fe2cce934@redhat.com/
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2341731
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-9-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Prepare for registering more than 1 GPIO regulator

Prepare the discrete code for registering more than 1 GPIO regulator.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-8-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Avoid GPIO regulator spikes

Avoid the GPIO controlling the avdd regulator being driven low or high
for a very short time leading to spikes by adding an enable delay of 2 ms
and a minimum off to on delay of also 2 ms.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-7-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Make regulator supply name configurable

This is a preparation patch for registering multiple regulators, which
requires a different supply-name for each regulator. Make supply-name
a parameter to skl_int3472_register_regulator() and use con-id to set it
so that the existing int3472_gpio_map remapping can be used with it.

Since supply-name is a parameter now, drop the fixed
skl_int3472_regulator_map_supplies[] array and instead add lower- and
upper-case mappings of the passed-in supply-name to the regulator.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-6-hdegoede@redhat.com
[ij: GPIO_SUPPPLY_NAME_LENGTH -> GPIO_SUPPLY_NAME_LENGTH]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Rework AVDD second sensor quirk handling

Rework the discrete quirk handling to use a quirks struct which is
pointed to by a dmi_system_id table, rather then having a dmi_system_id
table per type of quirk.

This is a preparation patch for adding support for multiple regulators,
where not all regulators might be shared between sensors.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-5-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Drop unused gpio field from struct int3472_gpio_regulator

The gpio field in struct int3472_gpio_regulator is only briefly used to
store the GPIO in skl_int3472_register_regulator(). Instead just store
the GPIO directly into cfg.ena_gpiod an drop the gpio field.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-4-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Stop setting a supply-name for GPIO regulators

The supply_name field is not mandatory and is supposed to be set to
the name of another regulator when it is known that the regulator being
registered is supplied by that other regulator.

Having a regulator supplying the regulator which is being registered does
not apply to the INT3472 GPIO regulator, stop setting a supply_name.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-3-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int3472: Add skl_int3472_register_clock() helper

skl_int3472_register_dsm_clock() and skl_int3472_register_gpio_clock() are
80% the same code. Factor out the common code into a new
skl_int3472_register_clock() helper.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: David Heidelberg <david@ixit.cz> # Dell Latitude 9440
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250417111337.38142-2-hdegoede@redhat.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform: Do not enable by default during compile testing

Enabling the compile test should not cause automatic enabling of all
drivers, but only allow to choose to compile them.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250417074648.81528-1-krzysztof.kozlowski@linaro.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: dell-pc: Transition to faux device

Use a faux device parent for registering the platform_profile instead of
a "fake" platform device.

The faux bus is a minimalistic, single driver bus designed for this
purpose.

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250411-dell-faux-v1-3-ea1f1c929b7e@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: dell-pc: Use non-atomic bitmap operations

The choices bitmap belongs only to this thread, therefore we can use the
non-atomic version of set_bit().

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250411-dell-faux-v1-2-ea1f1c929b7e@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: dell-pc: Propagate errors when detecting feature support

The dell-pc module only supports the thermal management Dell SMBIOS
feature, therefore it is pointless to have it loaded if this is not
available.

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250411-dell-faux-v1-1-ea1f1c929b7e@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/mellanox: Rename field to improve code readability

Rename field 'counter' in 'mlxreg_core_hotplug_platform_data' to count.

Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20250412091843.33943-2-vadimp@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Remove unneeded io operations

Remove ioremap and iounmap operations that are not needed. ioremap
and iounmap operations are handled by the caller of the pmc_add_pmt
function.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://lore.kernel.org/r/20250409191056.15434-7-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Remove unneeded header file inclusion

telemetry.h header file from PMT is not needed in arl.c or mtl.c.
Remove the cross-driver include to avoid confusion.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250409191056.15434-6-xi.pardee@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Convert index variables to be unsigned

Convert the index variables type to be unsigned to avoid confusion
and error.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250409191056.15434-5-xi.pardee@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Move PMC devid to core.h

Move PMC devid definition for each PMC of Arrow Lake and Meteor
Lake platforms to core.h. This patch is a preparation step to
introduce a new SSRAM Telemetry driver which will be using the
PMC devid.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250409191056.15434-4-xi.pardee@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Rename core_ssram to ssram_telemetry

Rename core_ssram.c to ssram_telemetry.c. This patch is a
preparation step to introduce a new SSRAM Telemetry driver
for the SSRAM device.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250409191056.15434-3-xi.pardee@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86:intel/pmc: Move PMC Core related functions

Move functions that implements PMC Core feature from core_ssram.c
to core.c. This patch is a preparation step to introduce a new
SSRAM Telemetry driver for the SSRAM device.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250409191056.15434-2-xi.pardee@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: silicom: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20250408-gpiochip-set-rv-platform-x86-v1-3-6f67e76a722c@linaro.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: int0002: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20250408-gpiochip-set-rv-platform-x86-v1-2-6f67e76a722c@linaro.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: barco-p50: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20250408-gpiochip-set-rv-platform-x86-v1-1-6f67e76a722c@linaro.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: Use strscpy()/scnprintf() with acpi_device_name/class()

Replace strcpy() and sprintf() for acpi_device_name/class() targets
with safer variant. In one case, scnprintf() is necessary but the
rest can use strscpy().

Link: https://lore.kernel.org/r/20250407170839.2153-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Documentation: ABI: Add sysfs platform and debugfs ABI documentation for alienware-wmi

Add ABI description for the alienware-wmi driver.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-12-a14ea39d8a94@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Documentation: admin-guide: laptops: Add documentation for alienware-wmi

Add driver admin-guide documentation for the alienware-wmi driver.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-11-a14ea39d8a94@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Documentation: wmi: Improve and update alienware-wmi documentation

Use tables to describe method operations instead of using pseudo-code.
Drop unknown method descriptions to avoid redundancy. Drop GPIO section
as it is currently irrelevant to this driver. Update Thermal_Information
method documentation. Add one more helpful developer to the kudos section.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-10-a14ea39d8a94@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Add a DebugFS interface

Add a debugfs interface which exposes thermal private data.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-9-a14ea39d8a94@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Add support for manual fan control

All models with the "AWCC" WMAX device support a way of manually
controlling fans.

The PWM duty cycle of a fan can't be controlled directly. Instead the
AWCC interface let's us tune a fan `boost` value, which has the
following empirically discovered, approximate behavior over the PWM
value:

pwm = pwm_base + (fan_boost / 255) * (pwm_max - pwm_base)

Where the pwm_base is the locked PWM value controlled by the FW and
fan_boost is a value between 0 and 255.

Expose this fan_boost knob as a custom HWMON attribute.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: linux-hwmon@vger.kernel.org
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-8-a14ea39d8a94@gmail.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Add HWMON support

All models with the "AWCC" WMAX device support monitoring fan speed and
temperature sensors. Expose this feature through the HWMON interface.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: linux-hwmon@vger.kernel.org
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-7-a14ea39d8a94@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Add support for the "custom" thermal profile

All models with the "AWCC" WMAX device support a "custom" thermal
profile. In some models this profile signals user-space that the user
wants to manually control the fans, which are always unlocked. In other
models it actually unlocks manual fan control.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-6-a14ea39d8a94@gmail.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Improve platform profile probe

Get and store the AWCC system description in alienware_awcc_setup()
instead of awcc_platform_profile_probe() and get the correct offset by
iterating through each member of the system_description.

Then add a debug message for unmatched profiles and replace set_bit()
with it's non-atomic version __set_bit() because the choices bitmap only
belongs to this thread.

In the process also check for a malformed system description by defining
an arbitrary limit of resource count.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-5-a14ea39d8a94@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Modify supported_thermal_profiles[]

Rename supported_thermal_profiles[] -> supported_profiles[] and change
it's type to u8 because it stores AWCC thermal IDs.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-4-a14ea39d8a94@gmail.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Improve internal AWCC API

Inline all AWCC WMI helper methods and directly return the newly
introduced awcc_wmi_command() helper to simplify implementation.

Drop awcc_thermal_control() in favor of awcc_op_activate_profile().

Add awcc_op_get_resource_id(), awcc_op_get_current_profile() and a new
failure code.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-3-a14ea39d8a94@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Improve ID processing

Rename AWCC_SENSOR_ID_MASK to AWCC_SENSOR_ID_FLAG and reorder the ID
processing defines in a more logical manner. Then replace their use in
bitwise operations with FIELD_GET().

The latter also involves dropping the AWCC_SENSOR_ID_FLAG check inside
is_awcc_thermal_mode() in favor of extracting the first byte out of IDs
obtained with AWCC_OP_GET_RESOURCE_ID. This is also a requirement to add
support for Alienware Aurora desktops.

While at it, also rename is_awcc_thermal_mode() to
is_awcc_thermal_profile_id().

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-2-a14ea39d8a94@gmail.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: alienware-wmi-wmax: Rename thermal related symbols

The "thermal" features of the WMAX WMI device are only present on the
host device if the ACPI _UID is "AWCC". Replace WMAX prefixes with
"AWCC" to reflect this relationship.

Thermal profiles with WMAX_PROFILE_BASIC prefix are also renamed to
WMAX_PROFILE_LEGACY because they are only supported in older versions
of this WMI device.

Finally, shorten enum defines for AWCC operations from WMAX_OPERATION_*
to AWCC_OP_*.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250329-hwm-v7-1-a14ea39d8a94@gmail.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform: arm64: huawei-gaokun-ec: Remove unneeded semicolon

Remove unnecessary semicolons reported by Coccinelle/coccicheck and the
semantic patch at scripts/coccinelle/misc/semicolon.cocci.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250327025244.1790897-1-nichen@iscas.ac.cn
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

platform/x86: Avoid -Wflex-array-member-not-at-end warning

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Move the conflicting declaration to the end of the structure. Notice
that `struct acpi_resource_irq` is a flexible structure --a structure
that contains a flexible-array member.

Fix the following warning:

drivers/platform/x86/sony-laptop.c:3330:41: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/Z-WlhL_tAP11M02G@kspp
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Linux 6.15-rc1

tools/include: make uapi/linux/types.h usable from assembly

The "real" linux/types.h UAPI header gracefully degrades to a NOOP when
included from assembly code.

Mirror this behaviour in the tools/ variant.

Test for __ASSEMBLER__ over __ASSEMBLY__ as the former is provided by the
toolchain automatically.

Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/lkml/af553c62-ca2f-4956-932c-dd6e3a126f58@sirena.org.uk/
Fixes: c9fbaa879508 ("selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20250321-uapi-consistency-v1-1-439070118dc0@linutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'turbostat-2025.05.06' of git://git./linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - support up to 8192 processors

 - add cpuidle governor debug telemetry, disabled by default

 - update default output to exclude cpuidle invocation counts

 - bug fixes

* tag 'turbostat-2025.05.06' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: v2025.05.06
  tools/power turbostat: disable "cpuidle" invocation counters, by default
  tools/power turbostat: re-factor sysfs code
  tools/power turbostat: Restore GFX sysfs fflush() call
  tools/power turbostat: Document GNR UncMHz domain convention
  tools/power turbostat: report CoreThr per measurement interval
  tools/power turbostat: Increase CPU_SUBSET_MAXCPUS to 8192
  tools/power turbostat: Add idle governor statistics reporting
  tools/power turbostat: Fix names matching
  tools/power turbostat: Allow Zero return value for some RAPL registers
  tools/power turbostat: Clustered Uncore MHz counters should honor show/hide options

Merge tag 'soundwire-6.15-rc1-fixes' of git://git./linux/kernel/git/vkoul/soundwire

Pull soundwire fix from Vinod Koul:

 - add missing config symbol CONFIG_SND_HDA_EXT_CORE required for asoc
   driver CONFIG_SND_SOF_SOF_HDA_SDW_BPT

* tag 'soundwire-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  ASoC: SOF: Intel: Let SND_SOF_SOF_HDA_SDW_BPT select SND_HDA_EXT_CORE

tools/power turbostat: v2025.05.06

Support up to 8192 processors
Add cpuidle governor debug telemetry, disabled by default
Update default output to exclude cpuidle invocation counts
Bug fixes

Signed-off-by: Len Brown <len.brown@intel.com>

tools/power turbostat: disable "cpuidle" invocation counters, by default

Create "pct_idle" counter group, the sofware notion of residency
so it can now be singled out, independent of other counter groups.

Create "cpuidle" group, the cpuidle invocation counts.
Disable "cpuidle", by default.

Create "swidle" = "cpuidle" + "pct_idle".
Undocument "sysfs", the old name for "swidle", but keep it working
for backwards compatibilty.

Create "hwidle", all the HW idle counters

Modify "idle", enabled by default
"idle" = "hwidle" + "pct_idle" (and now excludes "cpuidle")

Signed-off-by: Len Brown <len.brown@intel.com>

Merge tag 'perf-urgent-2025-04-06' of git://git./linux/kernel/git/tip/tip

Pull perf event fix from Ingo Molnar:
 "Fix a perf events time accounting bug"

* tag 'perf-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix child_total_time_enabled accounting bug at task exit

Merge tag 'sched-urgent-2025-04-06' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:

 - Fix a nonsensical Kconfig combination

 - Remove an unnecessary rseq-notification

* tag 'sched-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rseq: Eliminate useless task_work on execve
  sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP

Disable SLUB_TINY for build testing

... and don't error out so hard on missing module descriptions.

Before commit 6c6c1fc09de3 ("modpost: require a MODULE_DESCRIPTION()")
we used to warn about missing module descriptions, but only when
building with extra warnigns (ie 'W=1').

After that commit the warning became an unconditional hard error.

And it turns out not all modules have been converted despite the claims
to the contrary.  As reported by Damian Tometzki, the slub KUnit test
didn't have a module description, and apparently nobody ever really
noticed.

The reason nobody noticed seems to be that the slub KUnit tests get
disabled by SLUB_TINY, which also ends up disabling a lot of other code,
both in tests and in slub itself.  And so anybody doing full build tests
didn't actually see this failre.

So let's disable SLUB_TINY for build-only tests, since it clearly ends
up limiting build coverage.  Also turn the missing module descriptions
error back into a warning, but let's keep it around for non-'W=1'
builds.

Reported-by: Damian Tometzki <damian@riscv-rocks.de>
Link: https://lore.kernel.org/all/01070196099fd059-e8463438-7b1b-4ec8-816d-173874be9966-000000@eu-central-1.amazonses.com/
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Fixes: 6c6c1fc09de3 ("modpost: require a MODULE_DESCRIPTION()")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

tools/power turbostat: re-factor sysfs code

Probe cpuidle "sysfs" residency and counts separately,
since soon we will make one disabled on, and the
other disabled off.

Clarify that some BIC (build-in-counters) are actually "groups".
since we're about to re-name some of those groups.

no functional change.

Signed-off-by: Len Brown <len.brown@intel.com>

tools/power turbostat: Restore GFX sysfs fflush() call

Do fflush() to discard the buffered data, before each read of the
graphics sysfs knobs.

Fixes: ba99a4fc8c24 ("tools/power turbostat: Remove unnecessary fflush() call")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

tools/power turbostat: Document GNR UncMHz domain convention

Document that on Intel Granite Rapids Systems,
Uncore domains 0-2 are CPU domains, and
uncore domains 3-4 are IO domains.

Signed-off-by: Len Brown <len.brown@intel.com>