kernel/linux.git/drivers/hwmon/coretemp.c, branch v7.2-rc2

Merge tag 'hwmon-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2026-06-16T02:40:21+00:00

Pull hwmon updates from Guenter Roeck: "New drivers for the following chips: - Analog Devices LTC4283 Swap Controller - Analog Devices MAX20830 - Analog Devices MAX20860A - ARCTIC Fan Controller - Delta E50SN12051 - Luxshare LX1308 - Microchip EMC1812/13/14/15/33 - Monolithic MP2985 - Murata D1U74T PSU New chip support added to existing drivers: - asus-ec-sensors: Support for ROG MAXIMUS Z790 EXTREME, ROG STRIX B850-E GAMING WIFI, and ROG STRIX B650E-E GAMING WIFI - dell-smm: Add Dell Latitude 7530 to fan control whitelist - nct6683: Support for ASRock Z890 Pro-A - pmbus: Support for Flex BMR316, BMR321, BMR350 and BMR351 - pmbus/max34440: Support for ADPM12250 - pmbus/xdp720: Support for Infineon xdp730, and fix driver issues reported by Sashiko New functionality: - Add support for update_interval_us chip attribute, and support it in ina238 driver - Add support for guard() and scoped_guard() for subsystem locks, and use it in adt7411, ina2xx, and lm90 drivers - emc2305: Support configurable fan PWM at shutdown - lm63: Expose PWM frequency and LUT hysteresis as writable - lm75: Support active-high alert polarity - nct7802: Add time step attributes for tweaking responsiveness - pmbus/adm1266: Add rtc debugfs entries for rtc, powerup_counter, clear_blackbox, and firmware_revision - raspberrypi: Fix delayed-work teardown race, add voltage input support as well as voltage domain IDs - mcp9982: Add support for reporting external diode faults Miscellaneous bug fixes, changes and improvements: - Use named initializers for platform_device_id arrays and i2c_device_data, and remove unused driver data - Various drivers: Move MODULE_DEVICE_TABLE next to the table itself - ads7871: Convert to hwmon_device_register_with_info(), and use DMA-safe buffer for SPI writes - adt7411: document supported sysfs attributes - adt7462: Add of_match_table to support devicetree - adt7475: Add explicit header include - coretemp; Fix outdated documentation, coding style issues, and replace hardcoded core count with dynamic value - cros_ec: Drop unused assignment of platform_device_id driver data - emc2305: Fix fan channel index handling - gpd-fan: Reject EC PWM value 0 as invalid, fix race condition between device removal and sysfs access, upgrade log level from warn to err for platform device creation failure, initialize EC before registering hwmon device, drop global driver data and use per-device allocation - htu31: document debugfs serial_number - ina238: Add support for samples and update_interval - it87: Clamp negative values to zero in set_fan() - lm75: Add explicit header include, Add explicit default cases in lm75_is_visible(), and add section for sysfs interface to documentation - pmbus/lm25066: Fix PMBus coefficients for LM5064/5066/5066i - tmp102: Use device_property_read_string API - tmp401: Read "ti,n-factor" as signed - Convert zyxel,nsa320-mcu to DT schema" * tag 'hwmon-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (81 commits) hwmon: tmp401: Read "ti,n-factor" as signed hwmon: (pmbus/lm25066) Fix PMBus coefficients for LM5064/5066/5066i hwmon: (gpd-fan) Reject EC PWM value 0 as invalid hwmon: (dell-smm) Add Dell Latitude 7530 to fan control whitelist hwmon: temperature: add support for EMC1812 dt-bindings: hwmon: temperature: add support for EMC1812 hwmon: (gpd-fan): fix race condition between device removal and sysfs access hwmon: (gpd-fan): upgrade log level from warn to err for platform device creation failure hwmon: (gpd-fan): Initialize EC before registering hwmon device hwmon: (gpd-fan): drop global driver data and use per-device allocation hwmon: (pmbus/max34440): add support adpm12250 hwmon: (ina238) Add update_interval_us attribute hwmon: Add update_interval_us chip attribute hwmon: (ina238) Add support for samples and update_interval gpio: gpio-ltc4283: Add support for the LTC4283 Swap Controller hwmon: ltc4283: Add support for the LTC4283 Swap Controller dt-bindings: hwmon: Document the LTC4283 Swap Controller hwmon: (pmbus/xdp720) Fix driver issues xdp720/730 hwmon: (pmbus/xdp720) Add support for efuse xdp730 dt-bindings: hwmon/pmbus: Add Infineon xdp730 ...

hwmon: (coretemp) fix coding style issues

2026-06-09T15:23:00+00:00

Address several coding style warnings reported by checkpatch.pl: - Replace with - Add missing blank lines after declarations - Combine split quoted strings - Reorder __initconst placement No functional change. Signed-off-by: Roman Bakshansky Link: https://lore.kernel.org/r/20260516114253.5466-3-bakshansky.lists@gmail.com [groeck: Dropped false positive change. Fixed various CHECK reports.] Signed-off-by: Guenter Roeck

hwmon: (coretemp) replace hardcoded core count with dynamic value

2026-06-09T15:23:00+00:00

The hardcoded maximum of 512 cores per package was first defined by commit 34cf8c657cf0 ("hwmon: (coretemp) Enlarge per package core count limit") and later kept as a fallback with a TODO in commit 1a793caf6f69 ("hwmon: (coretemp) Use dynamic allocated memory for core temp_data") because the actual per-package core count was not reliably available at the time. Now that topology_num_cores_per_package() is stable and suitable for use, it's time to complete the TODO and allocate only the needed amount of memory for core_data. Signed-off-by: Roman Bakshansky Link: https://lore.kernel.org/r/20260516114253.5466-2-bakshansky.lists@gmail.com Signed-off-by: Guenter Roeck

x86/msr: Switch rdmsr_safe_on_cpu() users to rdmsrq_safe_on_cpu()

2026-06-08T08:01:49+00:00

In order to prepare retiring rdmsr_safe_on_cpu() switch rdmsr_safe_on_cpu() users to rdmsrq_safe_on_cpu(). Tested-by: K Prateek Nayak Signed-off-by: Juergen Gross Signed-off-by: Ingo Molnar Reviewed-by: Dave Hansen Cc: Guenter Roeck Cc: Rafael J. Wysocki Cc: Daniel Lezcano Link: https://patch.msgid.link/20260608051741.3207435-9-jgross@suse.com

x86/msr: Switch rdmsr_on_cpu() users to rdmsrq_on_cpu()

2026-06-08T08:01:49+00:00

In order to prepare retiring rdmsr_on_cpu() switch rdmsr_on_cpu() users to rdmsrq_on_cpu(). Tested-by: K Prateek Nayak Signed-off-by: Juergen Gross Signed-off-by: Ingo Molnar Reviewed-by: Dave Hansen Cc: Rafael J. Wysocki Cc: Viresh Kumar Cc: Guenter Roeck Cc: Daniel Lezcano Link: https://patch.msgid.link/20260608051741.3207435-4-jgross@suse.com

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22T16:26:33+00:00

Conversion performed via this Coccinelle script: // SPDX-License-Identifier: GPL-2.0-only // Options: --include-headers-for-types --all-includes --include-headers --keep-comments virtual patch @gfp depends on patch && !(file in "tools") && !(file in "samples")@ identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex, kzalloc_obj,kzalloc_objs,kzalloc_flex, kvmalloc_obj,kvmalloc_objs,kvmalloc_flex, kvzalloc_obj,kvzalloc_objs,kvzalloc_flex}; @@ ALLOC(... - , GFP_KERNEL ) $ make coccicheck MODE=patch COCCI=gfp.cocci Build and boot tested x86_64 with Fedora 42's GCC and Clang: Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Signed-off-by: Kees Cook Signed-off-by: Linus Torvalds

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00+00:00

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

hwmon: (coretemp) Add TjMax for Silvermont through Tremont Atoms

2026-01-31T15:38:32+00:00

Add fallback TjMax values for Intel Atom processors based on Silvermont, Airmont, Goldmont, and Tremont microarchitectures. These processors support MSR_IA32_TEMPERATURE_TARGET for reading TjMax directly, so these table entries serve as fallback values only when the MSR read fails (e.g., in some virtualization scenarios). Added processors and TjMax values: - INTEL_ATOM_SILVERMONT (0x37, Bay Trail): - Stepping 9 (E38xx embedded): 110C - Other steppings (Z37xx tablet): 90C Stepping identified from Intel E3800 Specification Update. - INTEL_ATOM_SILVERMONT_MID (0x4a, Merrifield): 90C - INTEL_ATOM_SILVERMONT_MID2 (0x5a, Moorefield): 90C - INTEL_ATOM_AIRMONT (0x4c, Cherry Trail): 90C - INTEL_ATOM_GOLDMONT (0x5c, Apollo Lake): 105C - INTEL_ATOM_GOLDMONT_PLUS (0x7a, Gemini Lake): 105C - INTEL_ATOM_TREMONT (0x96, Elkhart Lake): 105C - INTEL_ATOM_TREMONT_L (0x9c, Jasper Lake): 105C Not included (MSR reads work reliably, server/specialized chips): - INTEL_ATOM_SILVERMONT_D (Avoton): Server, Tcase 97C - INTEL_ATOM_GOLDMONT_D (Denverton): Server, Tcase 82C - INTEL_ATOM_AIRMONT_NP (Lightning Mountain): Network processor - INTEL_ATOM_TREMONT_D (Jacobsville): Server - INTEL_ATOM_GRACEMONT (Alder Lake-N): Very new, MSR works Reference: Intel datasheets and ARK processor specifications - Z3600/Z3700 datasheet: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/atom-z36xxx-z37xxx-datasheet-vol-1.pdf - E3845 ARK: https://www.intel.com/content/www/us/en/products/sku/78475/intel-atom-processor-e3845-2m-cache-1-91-ghz/specifications.html - E3800 Spec Update: https://community.intel.com/cipcp26785/attachments/cipcp26785/embedded-atom-processors/4708/1/600834-329901-intel-atom-processor-e3800-product-family-su-rev015.pdf Signed-off-by: Laveesh Bansal Link: https://lore.kernel.org/r/20260106155426.547872-3-laveeshb@laveeshbansal.com Signed-off-by: Guenter Roeck