Commit Graph

5535 Commits

Author SHA1 Message Date
Linus Torvalds
84bbfe6b64 platform-drivers-x86 for v6.12-1
Highlights:
  -  asus-wmi: Add support for vivobook fan profiles
  -  dell-laptop: Add knobs to change battery charge settings
  -  lg-laptop: Add operation region support
  -  intel-uncore-freq: Add support for efficiency latency control
  -  intel/ifs: Add SBAF test support
  -  intel/pmc: Ignore all LTRs during suspend
  -  platform/surface: Support for arm64 based Surface devices
  -  wmi: Pass event data directly to legacy notify handlers
  -  x86/platform/geode: switch GPIO buttons and LEDs to software properties
  -  bunch of small cleanups, fixes, hw-id additions, etc.
 
 The following is an automated git shortlog grouped by driver:
 
 Documentation:
  -  admin-guide: pm: Add efficiency vs. latency tradeoff to uncore documentation
 
 ISST:
  -  Simplify isst_misc_reg() and isst_misc_unreg()
 
 MAINTAINERS:
  -  adjust file entry in INTEL MID PLATFORM
  -  Add Intel MID section
 
 Merge tag 'hwmon-for-v6.11-rc7' into review-hans:
  - Merge tag 'hwmon-for-v6.11-rc7' into review-hans
 
 Merge tag 'platform-drivers-x86-v6.11-3' into review-hans:
  - Merge tag 'platform-drivers-x86-v6.11-3' into review-hans
 
 acer-wmi:
  -  Use backlight power constants
 
 asus-laptop:
  -  Use backlight power constants
 
 asus-nb-wmi:
  -  Use backlight power constants
 
 asus-wmi:
  -  don't fail if platform_profile already registered
  -  add debug print in more key places
  -  Use backlight power constants
  -  add support for vivobook fan profiles
 
 dell-laptop:
  -  remove duplicate code w/ battery function
  -  Add knobs to change battery charge settings
 
 dt-bindings:
  -  platform: Add Surface System Aggregator Module
  -  serial: Allow embedded-controller as child node
 
 eeepc-laptop:
  -  Use backlight power constants
 
 eeepc-wmi:
  -  Use backlight power constants
 
 fujitsu-laptop:
  -  Use backlight power constants
 
 hid-asus:
  -  use hid for brightness control on keyboard
 
 ideapad-laptop:
  -  Make the scope_guard() clear of its scope
  -  move ACPI helpers from header to source file
  -  Use backlight power constants
 
 int3472:
  -  Use str_high_low()
  -  Use GPIO_LOOKUP() macro
  -  make common part a separate module
 
 intel-hid:
  -  Use string_choices API instead of ternary operator
 
 intel/pmc:
  -  Ignore all LTRs during suspend
  -  Remove unused param idx from pmc_for_each_mode()
 
 intel_scu_ipc:
  -  Move intel_scu_ipc.h out of arch/x86/include/asm
 
 intel_scu_wdt:
  -  Move intel_scu_wdt.h to x86 subfolder
 
 lenovo-ymc:
  -  Ignore the 0x0 state
 
 lg-laptop:
  -  Add operation region support
 
 oaktrail:
  -  Use backlight power constants
 
 panasonic-laptop:
  -  Add support for programmable buttons
 
 platform/mellanox:
  -  mlxbf-pmc: fix lockdep warning
 
 platform/olpc:
  -  Remove redundant null pointer checks in olpc_ec_setup_debugfs()
 
 platform/surface:
  -  Add OF support
 
 platform/x86/amd:
  -  pmf: Add quirk for TUF Gaming A14
 
 platform/x86/amd/pmf:
  -  Update SMU metrics table for 1AH family series
  -  Relocate CPU ID macros to the PMF header
  -  Add support for notifying Smart PC Solution updates
 
 platform/x86/intel-uncore-freq:
  -  Add efficiency latency control to sysfs interface
  -  Add support for efficiency latency control
  -  Do not present separate package-die domain
 
 platform/x86/intel/ifs:
  -  Fix SBAF title underline length
  -  Add SBAF test support
  -  Add SBAF test image loading support
  -  Refactor MSR usage in IFS test code
 
 platform/x86/intel/pmc:
  -  Show live substate requirements
 
 platform/x86/intel/pmt:
  -  Use PMT callbacks
 
 platform/x86/intel/vsec:
  -  Add PMT read callbacks
 
 platform/x86/intel/vsec.h:
  -  Move to include/linux
 
 samsung-laptop:
  -  Use backlight power constants
 
 serial-multi-instantiate:
  -  Don't require both I2C and SPI
 
 thinkpad_acpi:
  -  Fix uninitialized symbol 's' warning
  -  Add Thinkpad Edge E531 fan support
 
 touchscreen_dmi:
  -  add nanote-next quirk
 
 trace:
  -  platform/x86/intel/ifs: Add SBAF trace support
 
 wmi:
  -  Call both legacy and WMI driver notify handlers
  -  Merge get_event_data() with wmi_get_notify_data()
  -  Remove wmi_get_event_data()
  -  Pass event data directly to legacy notify handlers
 
 x86-android-tablets:
  -  Adjust Xiaomi Pad 2 bottom bezel touch buttons LED
  -  Fix spelling in the comments
 
 x86/platform/geode:
  -  switch GPIO buttons and LEDs to software properties
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Merge tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform drivers updates from Hans de Goede:

 - asus-wmi: Add support for vivobook fan profiles

 - dell-laptop: Add knobs to change battery charge settings

 - lg-laptop: Add operation region support

 - intel-uncore-freq: Add support for efficiency latency control

 - intel/ifs: Add SBAF test support

 - intel/pmc: Ignore all LTRs during suspend

 - platform/surface: Support for arm64 based Surface devices

 - wmi: Pass event data directly to legacy notify handlers

 - x86/platform/geode: switch GPIO buttons and LEDs to software
   properties

 - bunch of small cleanups, fixes, hw-id additions, etc.

* tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits)
  MAINTAINERS: adjust file entry in INTEL MID PLATFORM
  platform/x86: x86-android-tablets: Adjust Xiaomi Pad 2 bottom bezel touch buttons LED
  platform/mellanox: mlxbf-pmc: fix lockdep warning
  platform/x86/amd: pmf: Add quirk for TUF Gaming A14
  platform/x86: touchscreen_dmi: add nanote-next quirk
  platform/x86: asus-wmi: don't fail if platform_profile already registered
  platform/x86: asus-wmi: add debug print in more key places
  platform/x86: intel_scu_wdt: Move intel_scu_wdt.h to x86 subfolder
  platform/x86: intel_scu_ipc: Move intel_scu_ipc.h out of arch/x86/include/asm
  MAINTAINERS: Add Intel MID section
  platform/x86: panasonic-laptop: Add support for programmable buttons
  platform/olpc: Remove redundant null pointer checks in olpc_ec_setup_debugfs()
  platform/x86: intel/pmc: Ignore all LTRs during suspend
  platform/x86: wmi: Call both legacy and WMI driver notify handlers
  platform/x86: wmi: Merge get_event_data() with wmi_get_notify_data()
  platform/x86: wmi: Remove wmi_get_event_data()
  platform/x86: wmi: Pass event data directly to legacy notify handlers
  platform/x86: thinkpad_acpi: Fix uninitialized symbol 's' warning
  platform/x86: x86-android-tablets: Fix spelling in the comments
  platform/x86: ideapad-laptop: Make the scope_guard() clear of its scope
  ...
2024-09-19 09:16:04 +02:00
Linus Torvalds
c27ea952c6 hwmon updates for v6.12
* New drivers
 
   - Driver for Sophgo SG2042 external hardware monitor
 
   - Thermal sensor driver for Surface Aggregator Module
 
 * Added support to existing drivers
 
   - oxp-sensors: Support for multiple new devices.
 
   - nct6775: Added G15CF to ASUS WMI monitoring list
 
 * Modernizations
 
   - ina2xx: Driver cleanup and update to use with_info API
 
   - lm92: Driver cleanup and update to use regmap and with_info API
 
   - lm95234: Driver cleanup and update to use regmap and with_info API
 
   - max1619: Driver cleanup and update to use regmap and with_info API
 
   - max1668: Driver cleanup and update to use regmap and with_info API
 
   - max6697: Driver cleanup and update to use regmap and with_info API
 
 * API updates
 
   - Removed unused devm_hwmon_device_unregister() API function
 
 * Other notable changes
 
   - Implement and use generic bus access delay for pmbus drivers
 
   - Use with scoped for each OF child loop in several drivers
 
   - Module unloading fixes for gsc-hwmon and ntc_thermistor drivers
 
   - Converted various drivers to use multi-byte regmap operations
 
   - adt7475: Improved devicetree based configuration
 
   - ltc2947: Move to firmware agnostic API
 
   - ltc2978: Converted devicetree description to yaml
 
   - max16065: Addressed overflows when writing limit attributes
 
 * Various other minor cleanups, fixes and improvements
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Merge tag 'hwmon-for-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New drivers:
   - driver for Sophgo SG2042 external hardware monitor
   - thermal sensor driver for Surface Aggregator Module

  Added support to existing drivers:
   - oxp-sensors: Support for multiple new devices.
   - nct6775: Added G15CF to ASUS WMI monitoring list

  Modernizations:
   - driver cleanup and update to use with_info API: ina2xx, lm92,
     lm95234, max1619, max1668, and max6697.

  API updates:
   - removed unused devm_hwmon_device_unregister() API function

  Other notable changes
   - implement and use generic bus access delay for pmbus drivers
   - use with scoped for each OF child loop in several drivers
   - module unloading fixes for gsc-hwmon and ntc_thermistor drivers
   - converted various drivers to use multi-byte regmap operations
   - adt7475: Improved devicetree based configuration
   - ltc2947: Move to firmware agnostic API
   - ltc2978: Converted devicetree description to yaml
   - max16065: Addressed overflows when writing limit attributes

  Various other minor cleanups, fixes and improvements"

* tag 'hwmon-for-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (96 commits)
  hwmon: Remove devm_hwmon_device_unregister() API function
  hwmon: (sch5636) Print unknown ID in error string via %*pE
  hwmon: (sht21) Use %*ph to print small buffer
  hwmon: (pmbus/mpq7932) Constify struct regulator_desc
  hwmon: pmbus: pli12096bc: Add write delay
  hwmon: pmbus: zl6100: Use generic code
  hwmon: pmbus: ucd9000: Use generic code
  hwmon: pmbus: max15301: Use generic code
  hwmon: pmbus: Implement generic bus access delay
  hwmon: (ina2xx) Use shunt voltage to calculate current
  hwmon: (ina2xx) Add support for current limits
  hwmon: (ina2xx) Pass register to alert limit write functions
  hwmon: (ina2xx) Convert to use with_info hwmon API
  hwmon: (ina2xx) Move ina2xx_get_value()
  hwmon: (ina2xx) Set alert latch
  hwmon: (ina2xx) Consolidate chip initialization code
  hwmon: (ina2xx) Fix various overflow issues
  hwmon: (ina2xx) Re-initialize chip using regmap functions
  hwmon: (ina2xx) Use local regmap pointer if used more than once
  hwmon: (ina2xx) Mark regmap_config as const
  ...
2024-09-18 12:40:48 +02:00
Linus Torvalds
b507535474 Miscellaneous updates for x86:
- Rework kcpuid to handle the the autogenerated CSV file correctly and
     update the CSV file to cover the whole zoo of CPUID.
 
   - Avoid memcpy() for ia32 syscall_get_arguments() and use direct
     assignments as fortified memcpy() is unhappy about writing/reading
     beyond the end of the addresses destination/source struct member
 
   - A few new PCI IDs for AMD
 
   - Update MAINTAINERS to cover x86 specific selftests
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Merge tag 'x86-misc-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 updates from Thomas Gleixner:

 - Rework kcpuid to handle the the autogenerated CSV file correctly and
   update the CSV file to cover the whole zoo of CPUID.

 - Avoid memcpy() for ia32 syscall_get_arguments() and use direct
   assignments as fortified memcpy() is unhappy about writing/reading
   beyond the end of the addresses destination/source struct member

 - A few new PCI IDs for AMD

 - Update MAINTAINERS to cover x86 specific selftests

* tag 'x86-misc-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS: Add selftests/x86 entry
  x86/amd_nb: Add new PCI IDs for AMD family 1Ah model 60h-70h
  x86/syscall: Avoid memcpy() for ia32 syscall_get_arguments()
  MAINTAINERS: Add x86 cpuid database entry
  tools/x86/kcpuid: Introduce a complete cpuid bitfields CSV file
  tools/x86/kcpuid: Parse subleaf ranges if provided
  tools/x86/kcpuid: Recognize all leaves with subleaves
  tools/x86/kcpuid: Strip bitfield names leading/trailing whitespace
  tools/x86/kcpuid: Protect against faulty "max subleaf" values
  tools/x86/kcpuid: Set max possible subleaves count to 64
  tools/x86/kcpuid: Properly align long-description columns
  tools/x86/kcpuid: Remove unused variable
  x86/amd_nb: Add new PCI IDs for AMD family 1Ah model 60h
2024-09-17 15:18:45 +02:00
Guenter Roeck
2cb4acf214 hwmon: Remove devm_hwmon_device_unregister() API function
devm_hwmon_device_unregister() has no in-tree user, and its implementation
is wrong since it does not pass the to-be-removed hardware monitoring
device as parameter. I do not envision a valid use for it; drivers needing
it should not have called devm_hwmon_device_register_with_info() in the
first place. Remove it.

Reported-by: Matthew Sanders <m@ttsande.rs>
Closes: https://lore.kernel.org/linux-hwmon/488b3bdf870ea76c4b943dbe5fd15ac8113019dc.camel@kernel.org/
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-13 07:27:36 -07:00
Andy Shevchenko
3017d28d6c hwmon: (sch5636) Print unknown ID in error string via %*pE
Instead of custom approach this allows to print escaped strings
via %*pE extension. With this the unknown ID will be printed
as a string. Nonetheless, leave hex values to be printed as well.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Message-ID: <20240911201903.2886874-1-andriy.shevchenko@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-12 14:27:37 -07:00
Andy Shevchenko
38f9fa39af hwmon: (sht21) Use %*ph to print small buffer
Use %*ph format to print small buffer as hex string.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Message-ID: <20240911194627.2885506-1-andriy.shevchenko@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-12 14:17:29 -07:00
Patryk Biel
20471071f1 hwmon: (pmbus) Conditionally clear individual status bits for pmbus rev >= 1.2
The current implementation of pmbus_show_boolean assumes that all devices
support write-back operation of status register to clear pending warnings
or faults. Since clearing individual bits in the status registers was only
introduced in PMBus specification 1.2, this operation may not be supported
by some older devices. This can result in an error while reading boolean
attributes such as temp1_max_alarm.

Fetch PMBus revision supported by the device and modify pmbus_show_boolean
so that it only tries to clear individual status bits if the device is
compliant with PMBus specs >= 1.2. Otherwise clear all fault indicators
on the current page after a fault status was reported.

Fixes: 35f165f089 ("hwmon: (pmbus) Clear pmbus fault/warning bits after read")
Signed-off-by: Patryk Biel <pbiel7@gmail.com>
Message-ID: <20240909-pmbus-status-reg-clearing-v1-1-f1c0d68c6408@gmail.com>
[groeck:
 Rewrote description
 Moved revision detection code ahead of clear faults command
 Assigned revision if return value from PMBUS_REVISION command is 0
 Improved return value check from calling _pmbus_write_byte_data()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-09 10:58:09 -07:00
Christophe JAILLET
d22bd451d5 hwmon: (pmbus/mpq7932) Constify struct regulator_desc
'struct regulator_desc' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increase overall security, especially when the structure holds some
function pointers.

This also makes mpq7932_regulators_desc consistent with
mpq7932_regulators_desc_one which is already a "static const struct
regulator_desc".

On a x86_64, with allmodconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
   3516	   2264	      0	   5780	   1694	drivers/hwmon/pmbus/mpq7932.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
   5396	    384	      0	   5780	   1694	drivers/hwmon/pmbus/mpq7932.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Message-ID: <c0585a07547ec58d99a5bff5e02b398114bbe312.1725784343.git.christophe.jaillet@wanadoo.fr>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-08 16:37:51 -07:00
Armin Wolf
e04e2b760d platform/x86: wmi: Pass event data directly to legacy notify handlers
The current legacy WMI handlers are susceptible to picking up wrong
WMI event data on systems where different WMI devices share some
notification IDs.

Prevent this by letting the WMI driver core taking care of retrieving
the event data. This also simplifies the legacy WMI handlers and their
implementation inside the WMI driver core.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20240901031055.3030-3-W_Armin@gmx.de
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-09-05 17:21:59 +02:00
Patrick Rudolph
3cd1ef26b0 hwmon: pmbus: pli12096bc: Add write delay
Tests on PLI12096bc showed that sometimes a small delay is necessary
after a write operation before a new operation can be processed.
If not respected the device will probably NACK the data phase of
the SMBus transaction. Tests showed that the probability to observe
transaction errors can be raised by either reading sensor data or
toggling the regulator enable.

Further tests showed that 250 microseconds, as used previously for
the CLEAR_FAULTS workaround, is sufficient.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Message-ID: <20240902075319.585656-5-patrick.rudolph@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-02 07:34:03 -07:00
Patrick Rudolph
9c4e67320f hwmon: pmbus: zl6100: Use generic code
Use generic pmbus bus access delay.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Message-ID: <20240902075319.585656-4-patrick.rudolph@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-02 07:34:03 -07:00
Patrick Rudolph
106cfea5fa hwmon: pmbus: ucd9000: Use generic code
Use generic pmbus bus write access delay.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Message-ID: <20240902075319.585656-3-patrick.rudolph@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-02 07:34:02 -07:00
Patrick Rudolph
d83219e9fc hwmon: pmbus: max15301: Use generic code
Use the generic pmbus bus access delay.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Message-ID: <20240902075319.585656-2-patrick.rudolph@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-02 07:34:02 -07:00
Patrick Rudolph
21d9e60131 hwmon: pmbus: Implement generic bus access delay
Some drivers, like the max15301 or zl6100, are intentionally delaying
SMBus communications, to prevent transmission errors. As this is necessary
on additional PMBus compatible devices, implement a generic delay mechanism
in the pmbus core.

Introduces two delay settings in the pmbus_driver_info struct, one applies
to every SMBus transaction and the other is for write transaction only.
Once set by the driver the SMBus traffic, using the generic pmbus access
helpers, is automatically delayed when necessary.

The two settings are:
access_delay:
  - Unit in microseconds
  - Stores the accessed timestamp after every SMBus access
  - Delays when necessary before the next SMBus access

write_delay:
  - Unit in microseconds
  - Stores the written timestamp after a write SMBus access
  - Delays when necessary before the next SMBus access

This allows to drop the custom delay code from the drivers and easily
introduce this feature in additional pmbus drivers.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Message-ID: <20240902075319.585656-1-patrick.rudolph@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-02 07:34:02 -07:00
Armin Wolf
a54da9df75 hwmon: (hp-wmi-sensors) Check if WMI event data exists
The BIOS can choose to return no event data in response to a
WMI event, so the ACPI object passed to the WMI notify handler
can be NULL.

Check for such a situation and ignore the event in such a case.

Fixes: 23902f98f8 ("hwmon: add HP WMI Sensors driver")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Message-ID: <20240901031055.3030-2-W_Armin@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-02 07:23:35 -07:00
Pawel Dembicki
6a422a96bc hwmon: ltc2991: fix register bits defines
In the LTC2991, V5 and V6 channels use the low nibble of the
"V5, V6, V7, and V8 Control Register" for configuration, but currently,
the high nibble is defined.

This patch changes the defines to use the low nibble.

Fixes: 2b9ea4262a ("hwmon: Add driver for ltc2991")
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Message-ID: <20240830111349.30531-1-paweldembicki@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-09-01 06:39:57 -07:00
Guenter Roeck
63fb21afc1 hwmon: (ina2xx) Use shunt voltage to calculate current
Since the shunt voltage and the current register report the same values
when the chip is calibrated, we can calculate the current directly
from the shunt voltage without relying on chip calibration.

With this change, the current register is no longer accessed. Its
register address is only used to indicate if reading or writing
current or shunt voltage is desired when accessing registers.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
4d5c2d9867 hwmon: (ina2xx) Add support for current limits
While the chips supported by this driver do not directly support current
limits, they do support setting shunt voltage limits. The shunt voltage
divided by the shunt resistor value is the current. On top of that,
calibration values are set such that in the shunt voltage register and
the current register report the same values. That means we can report and
configure current limits based on shunt voltage limits, and we can do so
with much better accuracy than by setting shunt voltage limits.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
9965ebd183 hwmon: (ina2xx) Pass register to alert limit write functions
Pass the to-be-limited register to alert functions and use it to determine
conversion from limit to register value.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
814db9f1b8 hwmon: (ina2xx) Convert to use with_info hwmon API
Convert driver to use the with_info hardware monitoring API
to reduce its dependency on sysfs attribute functions.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
c263d91667 hwmon: (ina2xx) Move ina2xx_get_value()
ina2xx_get_value() will be needed earlier in the next patch, so move it.
No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
aa7d176366 hwmon: (ina2xx) Set alert latch
Alerts should only be cleared after reported, not immediately after the
alert condition has been cleared. Set the latch enable bit to keep alerts
latched until the alert register has been read from the chip.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
51c6fa3246 hwmon: (ina2xx) Consolidate chip initialization code
Move all chip initialization code into a single function.

No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
ab7fbee452 hwmon: (ina2xx) Fix various overflow issues
Module tests show various overflow problems when writing limits
and other attributes.

in0_crit: Suspected overflow: [max=82, read 0, written 2147483648]
in0_lcrit: Suspected overflow: [max=82, read 0, written 2147483648]
in1_crit: Suspected overflow: [max=40959, read 0, written 2147483647]
in1_lcrit: Suspected overflow: [max=40959, read 0, written 2147483647]
power1_crit: Suspected overflow: [max=134218750, read 0, written 2147483648]
update_interval: Suspected overflow: [max=2253, read 2, written 2147483647]

Implement missing clamping on attribute write operations to avoid those
problems.

While at it, check in the probe function if the shunt resistor value
passed from devicetree is valid, and bail out if it isn't. Also limit
mutex use to the code calling ina2xx_set_shunt() since it isn't needed
when called from the probe function.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
bb25cdc2bf hwmon: (ina2xx) Re-initialize chip using regmap functions
If it is necessary to re-initialize the chip, for example because
it has been power cycled, use regmap functions to update register
contents. This ensures that all registers, including the configuration
register and alert registers, are updated to previously configured
values without having to locally cache everything.

For this to work, volatile registers have to be marked as volatile.
Also, the cache needs to be bypassed when reading the calibration
and mask_enable registers. While the calibration register is not
volatile, it will be reset to 0 if the chip has been power cycled.
Most of the bits in the mask_enable register are configuration bits,
except for bit 4 which reports if an alert has been observed.
Both registers need to be marked as non-volatile to be updated
after a power cycle, but it is necessary to bypass the cache when
reading them to detect if the chip has been power cycled and to
read the alert status.

The chip does not support register auto-increments. It is therefore
necessary to configure regmap to use single register read/write
operations. Otherwise regmap tries to write all registers in a single
operation when synchronizing register contents with the hardware,
and the synchronization fails.

Another necessary change is to declare ina226_alert_to_reg() as u16.
So far it returned an s16 which is sign extended to a large negative
value which is then sent to regmap as unsigned int, causing an -EINVAL
error return.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
d491e781b0 hwmon: (ina2xx) Use local regmap pointer if used more than once
If regmap is accessed more than once in a function, declare and used
local regmap variable.

While at it, drop low value debug messages.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
2bb476524c hwmon: (ina2xx) Mark regmap_config as const
Recent versions of checkpatch complain that struct regmap_config
should be declared as const.

WARNING: struct regmap_config should normally be const

Doing so reveals a potential problem in the driver: If both supported
chips are present in a single system, the maximum number of registers
may race when devices are instantiated since max_registers is updated
in the probe function. Solve the problem by setting .max_registers to the
maximum register address of all supported chips. This does not make a
practical difference while fixing the potential race condition and reducing
code complexity.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
232177a37b hwmon: (ina2xx) Use bit operations
Use bit operations where possible to make the code more generic and to
align it with other drivers. Also use compile time conversion from bit
to mask to reduce runtime overhead.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
61a4a8414e hwmon: (ina2xx) Replace platform data with device properties
There are no in-tree users of ina2xx platform data. Drop it and support
device properties instead as alternative if it should ever be needed.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Guenter Roeck
9e60bb811f hwmon: (ina2xx) Reorder include files to alphabetic order
Simplify driver maintenance by reordering include files to alphabetic
order.

Whule at it, drop unnecessary / unused jiffies.h.

No functional change.

Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-30 08:34:23 -07:00
Nathan Chancellor
98845e7753 hwmon: (oxp-sensors) Add missing breaks to fix -Wimplicit-fallthrough with clang
clang warns (or errors due to CONFIG_WERROR):

  drivers/hwmon/oxp-sensors.c:481:3: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
  drivers/hwmon/oxp-sensors.c:553:3: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
  drivers/hwmon/oxp-sensors.c:556:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
  drivers/hwmon/oxp-sensors.c:607:3: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]

Clang is a little more pedantic than GCC, which does not warn when
falling through to a case that is just break or return. Clang's version
is more in line with the kernel's own stance in deprecated.rst, which
states that all switch/case blocks must end in either break,
fallthrough, continue, goto, or return. Add the missing breaks to
silence the warnings.

Fixes: b82b38a499 ("hwmon: (oxp-sensors) Add support for multiple new devices.")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Message-ID: <20240828-hwmon-oxp-sensors-fix-clang-implicit-fallthrough-v1-1-dc48496ac67a@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-28 13:33:53 -07:00
Johannes Kirchmair
ebb75a3c52 hwmon: (pwmfan) Do not force disable pwm controller
The pwm1_enable attribute of the pwmfan driver influences the mode of
operation, especially in case of a requested pwm1 duty cycle of zero.
Especially setting pwm1_enable to two, should keep the pwm controller
enabled even if the duty cycle is set to zero [1].

This is not the case at the moment, as the pwm controller is disabled
always if pwm1 is set to zero.

This commit tries to fix this behavior.

[1] https://docs.kernel.org/hwmon/pwm-fan.html

Signed-off-by: Johannes Kirchmair <johannes.kirchmair@skidata.com>
Message-ID: <20240827054454.521494-1-mailinglist1@johanneskirchmair.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:12:23 -07:00
Shen Lichuan
ac9cca7a6a hwmon: (pc87360) Use min() macro
Use the min() macro to simplify the pc87360_init_device() function
and improve its readability.

Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Message-ID: <20240827070442.40667-1-shenlichuan@vivo.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:12:23 -07:00
Inochi Amaoto
758b62e562 hwmon: Add sophgo SG2042 external hardware monitor support
SG2042 use an external MCU to provide basic hardware information
and thermal sensors.

Add driver support for the onboard MCU of SG2042.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Message-ID: <IA1PR20MB49536C786048D1E676BB9C20BB822@IA1PR20MB4953.namprd20.prod.outlook.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
d5b0723286 hwmon: (tmp464): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Message-ID: <20240822062956.3490387-9-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
a6e0a54aa7 hwmon: (tmp421): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Message-ID: <20240822062956.3490387-8-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
1b79bcace4 hwmon: (npcm750-pwm-fan): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Message-ID: <20240822062956.3490387-7-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
1d20db6b54 hwmon: (nct7802): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Message-ID: <20240822062956.3490387-6-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
bf0b61f0aa hwmon: (lm90): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Message-ID: <20240822062956.3490387-5-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
3fd38c6434 hwmon: (ina3221): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Message-ID: <20240822062956.3490387-4-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
d5733a9387 hwmon: (aspeed-pwm-tacho): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Message-ID: <20240822062956.3490387-3-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Jinjie Ruan
24b070d7d8 hwmon: (aspeed-g6-pwm-tacho): Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Message-ID: <20240822062956.3490387-2-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Mario Limonciello
4599510091 hwmon: (k10temp): Use cpu_feature_enabled() for detecting zen
This removes some boilerplate from the code and will allow adding
future CPUs by just device IDs.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Message-ID: <20240820053558.1052853-1-superm1@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:11:15 -07:00
Derek J. Clark
b82b38a499 hwmon: (oxp-sensors) Add support for multiple new devices.
Add support for the OrangePi NEO-01. It uses different registers for PWM
manual mode, set PWM, and read fan speed than previous devices. Valid PWM
input and duty cycle is 1-244, we scale this from 1-255 to maintain
compatibility with the existing interface.

Add OneXPlayer 2 series, OneXFly, and X1 series models. The 2/X1 series use
new registers for turbo button takeover and read fan speed. X1 has an Intel
variant so change the CPU detection at init to only check for the affected
devices. While at it, adjust formatting of some constants and reorder all
cases alphabetically for consistency. Rename OXP_OLD constants to OXP_MINI
for disambiguation. Update code comments for clarity.

Add support for AYANEO models 2S, AIR 1S, Flip series, GEEK 1S, and KUN.

Signed-off-by: Derek J. Clark <derekjohn.clark@gmail.com>
Tested-by: Kevin Greenberg <kdgreenberg234@protonmail.com>
Tested-by: Joshua Tam <csinaction@pm.me>
Tested-by: Parth Menon <parthasarathymenon@gmail.com>
Tested-by: Philip Müller <philm@manjaro.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202408160329.TLNbIwRC-lkp@intel.com/
Message-ID: <20240822183525.27289-2-derekjohn.clark@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:10:33 -07:00
Rob Herring (Arm)
0830d3bbda hwmon: (stts751) Add "st" vendor prefix to "stts751" compatible string
The documented compatible string is "st,stts751", not "stts751". Even if
"stts751" was in use, there's no need to list "stts751" in the DT match
table. The I2C core will strip any vendor prefix and match against the
i2c_device_id table which has an "stts751" entry.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Message-ID: <20240826191811.1416011-1-robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:10:23 -07:00
Yuntao Liu
b6964d66a0 hwmon: (ntc_thermistor) fix module autoloading
Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.

Fixes: 9e8269de10 ("hwmon: (ntc_thermistor) Add DT with IIO support to NTC thermistor driver")
Signed-off-by: Yuntao Liu <liuyuntao12@huawei.com>
Message-ID: <20240815083021.756134-1-liuyuntao12@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:10:23 -07:00
Yue Haibing
720c741c22 hwmon: (sch5627) Remove unused declaration sch56xx_watchdog_unregister()
Commit 2be5f0d753 ("hwmon: (sch56xx) Use devres functions for watchdog")
removed the implementation but leave declaration.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Message-ID: <20240816095740.877729-1-yuehaibing@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:10:23 -07:00
Liao Chen
fa8df3cbd3 hwmon: (gsc-hwmon) fix module autoloading
Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.

Signed-off-by: Liao Chen <liaochen4@huawei.com>
Message-ID: <20240814024555.3875387-1-liaochen4@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:10:23 -07:00
Maximilian Luz
63be321e5a hwmon: Add thermal sensor driver for Surface Aggregator Module
Some of the newer Microsoft Surface devices (such as the Surface Book
3 and Pro 9) have thermal sensors connected via the Surface Aggregator
Module (the embedded controller on those devices). Add a basic driver
to read out the temperature values of those sensors.

The EC can have up to 16 thermal sensors connected via a single
sub-device, each providing temperature readings and a label string.

Link: https://github.com/linux-surface/surface-aggregator-module/issues/59
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Co-developed-by: Ivor Wanders <ivor@iwanders.net>
Signed-off-by: Ivor Wanders <ivor@iwanders.net>
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Message-ID: <20240811001503.753728-1-luzmaximilian@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:10:23 -07:00
Denis Pauk
1f432e4cf1 hwmon: (nct6775) add G15CF to ASUS WMI monitoring list
Boards G15CF has got a nct6775 chip, but by default there's no use of it
because of resource conflict with WMI method.

Add the board to the WMI monitoring list.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=204807
Signed-off-by: Denis Pauk <pauk.denis@gmail.com>
Tested-by: Attila <attila@fulop.one>
Message-ID: <20240812152652.1303-1-pauk.denis@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27 08:10:23 -07:00