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2023-10-30scripts/kernel-doc: Fix the regex for matching -Werror flagYujie Liu
Swarup reported a "make htmldocs" warning: Variable length lookbehind is experimental in regex; marked by <-- HERE in m/(?<=^|\s)-Werror(?=$|\s) <-- HERE / at ./scripts/kernel-doc line 188. Akira managed to reproduce it by perl v5.34.0. On second thought, it is not necessary to have the complicated "lookahead and lookbehind" things, and the regex can be simplified. Generally, the kernel-doc warnings should be considered as errors only when "-Werror" flag is set in KCFLAGS, but not when "-Werror=<diagnostic-type>" is set, which means there needs to be a space or start of string before "-Werror", and a space or end of string after "-Werror". The following cases have been tested to work as expected: * kernel-doc warnings are considered as errors: $ KCFLAGS="-Werror" make W=1 $ KCFLAGS="-Wcomment -Werror" make W=1 $ KCFLAGS="-Werror -Wundef" make W=1 $ KCFLAGS="-Wcomment -Werror -Wundef" make W=1 * kernel-doc warnings remain as warnings: $ KCFLAGS="-Werror=return-type" make W=1 $ KCFLAGS="-Wcomment -Werror=return-type" make W=1 $ KCFLAGS="-Werror=return-type -Wundef" make W=1 $ KCFLAGS="-Wcomment -Werror=return-type -Wundef" make W=1 The "Variable length lookbehind is experimental in regex" warning is also resolved by this patch. Fixes: 91f950e8b9d8 ("scripts/kernel-doc: match -Werror flag strictly") Reported-by: Swarup Laxman Kotiaklapudi <swarupkotikalapudi@gmail.com> Signed-off-by: Yujie Liu <yujie.liu@intel.com> Closes: https://lore.kernel.org/r/20231028182231.123996-1-swarupkotikalapudi@gmail.com/ Reviewed-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20231030085404.3343403-1-yujie.liu@intel.com
2023-10-30iommufd/selftest: Fix page-size check in iommufd_test_dirty()Joao Martins
iommufd_test_dirty()/IOMMU_TEST_OP_DIRTY sets the dirty bits in the mock domain implementation that the userspace side validates against what it obtains via the UAPI. However in introducing iommufd_test_dirty() it forgot to validate page_size being 0 leading to two possible divide-by-zero problems: one at the beginning when calculating @max and while calculating the IOVA in the XArray PFN tracking list. While at it, validate the length to require non-zero value as well, as we can't be allocating a 0-sized bitmap. Link: https://lore.kernel.org/r/20231030113446.7056-1-joao.m.martins@oracle.com Reported-by: syzbot+25dc7383c30ecdc83c38@syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-iommu/00000000000005f6aa0608b9220f@google.com/ Fixes: a9af47e382a4 ("iommufd/selftest: Test IOMMU_HWPT_GET_DIRTY_BITMAP") Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-10-30iommufd: Add iopt_area_alloc()Jason Gunthorpe
We never initialize the two interval tree nodes, and zero fill is not the same as RB_CLEAR_NODE. This can hide issues where we missed adding the area to the trees. Factor out the allocation and clear the two nodes. Fixes: 51fe6141f0f6 ("iommufd: Data structure to provide IOVA to PFN mapping") Link: https://lore.kernel.org/r/20231030145035.GG691768@ziepe.ca Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-10-30iommufd: Fix missing update of domains_itree after splitting iopt_areaKoichiro Den
In iopt_area_split(), if the original iopt_area has filled a domain and is linked to domains_itree, pages_nodes have to be properly reinserted. Otherwise the domains_itree becomes corrupted and we will UAF. Fixes: 51fe6141f0f6 ("iommufd: Data structure to provide IOVA to PFN mapping") Link: https://lore.kernel.org/r/20231027162941.2864615-2-den@valinux.co.jp Cc: stable@vger.kernel.org Signed-off-by: Koichiro Den <den@valinux.co.jp> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-10-30fbdev: stifb: Make the STI next font pointer a 32-bit signed offsetHelge Deller
The pointer to the next STI font is actually a signed 32-bit offset. With this change the 64-bit kernel will correctly subract the (signed 32-bit) offset instead of adding a (unsigned 32-bit) offset. It has no effect on 32-bit kernels. This fixes the stifb driver with a 64-bit kernel on qemu. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org
2023-10-30parisc: Show default CPU PSW.W setting as reported by PDCHelge Deller
The last word shows the default PSW.W setting. Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc/pdc: Add width field to struct pdc_modelHelge Deller
PDC2.0 specifies the additional PSW-bit field. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org
2023-10-30parisc: Add nop instructions after TLB insertsJohn David Anglin
An excerpt from the PA8800 ERS states: * The PA8800 violates the seven instruction pipeline rule when performing TLB inserts or PxTLBE instructions with the PSW C bit on. The instruction will take effect by the 12th instruction after the insert or purge. I believe we have a problem with handling TLB misses. We don't fill the pipeline following TLB inserts. As a result, we likely fault again after returning from the interruption. The above statement indicates that we need at least seven instructions after the insert on pre PA8800 processors and we need 12 instructions on PA8800/PA8900 processors. Here we add macros and code to provide the required number instructions after a TLB insert. Signed-off-by: John David Anglin <dave.anglin@bell.net> Suggested-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc: simplify smp_prepare_boot_cpu()Russell King (Oracle)
smp_prepare_boot_cpu() reads the cpuid of the first CPU, printing a message to state which processor booted, and setting it online and present. This cpuid is retrieved from per_cpu(cpu_data, 0).cpuid, which is initialised in arch/parisc/kernel/processor.c:processor_probe() thusly: p = &per_cpu(cpu_data, cpuid); ... p->cpuid = cpuid; /* save CPU id */ Consequently, the cpuid retrieved seems to be guaranteed to also be zero, meaning that the message printed in this boils down to: pr_info("SMP: bootstrap CPU ID is 0\n"); Moreover, since kernel/cpu.c::boot_cpu_init() already sets CPU 0 to be present and online, there is no need to do this again in smp_prepare_boot_cpu(). Remove this code, and simplify the printk(). Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc/agp: Use 64-bit LE values in SBA IOMMU PDIR tableHelge Deller
The PDIR table of the System Bus Adapter (SBA) I/O MMU uses 64-bit little-endian pointers. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v6.4+
2023-10-30parisc/firmware: Use PDC constants for narrow/wide firmwareHelge Deller
PDC uses the PDC_MODEL_OS64 and PDC_MODEL_OS32 constants, so use those constants for the internal WIDE_FIRMWARE/NARROW_FIRMWARE too. Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc: Move parisc_narrow_firmware variable to header fileHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc/power: Trivial whitespace cleanups and license updateHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc/power: Add power soft-off when running on qemuHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v6.0+
2023-10-30parisc: Allow building uncompressed Linux kernelHelge Deller
Add HAVE_KERNEL_UNCOMPRESSED flag and fix build in boot directory. Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc: Add some missing PDC functions and constantsHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30parisc: sba-iommu: Fix comment when calculating IOC numberHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30spi: Merge up fixMark Brown
One small fix that didn't seem worth sending before the merge window.
2023-10-30regulator: Merge up pending fixMark Brown
One small fix didn't get sent before the merge window.
2023-10-30regmap: Merge up fix for window/paging issueMark Brown
This was too late and could potentially impact too many drivers for me to be comfortable sending it before the merge window.
2023-10-29hwmon: (aquacomputer_d5next) Check if temp sensors of legacy devices are ↵Aleksa Savic
connected Return -ENODATA if a temp sensor of a legacy device does not contain a reading. Originally-from: Leonard Anderweit <leonard.anderweit@gmail.com> Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com> Link: https://lore.kernel.org/r/20231016083559.139341-2-savicaleksa83@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-29hwmon: (aquacomputer_d5next) Add support for Aquacomputer High Flow USB and ↵Aleksa Savic
MPS Flow Extend aquacomputer_d5next driver to expose various hardware sensors of the Aquacomputer High Flow USB flow sensor, which communicates through a proprietary USB HID protocol. This commit also adds support for the sensors of the MPS Flow devices, as they have the same USB product ID and sensor layouts. Implemented by Leonard Anderweit [1]. Internal and external temp sensor readings are available, along with the flow sensor. Additionally, serial number and firmware version are exposed through debugfs. [1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/90 Originally-from: Leonard Anderweit <leonard.anderweit@gmail.com> Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com> Link: https://lore.kernel.org/r/20231016083559.139341-3-savicaleksa83@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-29dt-bindings: hwmon: npcm: Add npcm845 compatible stringTomer Maimon
Add a compatible string for Nuvoton BMC NPCM845 Pulse Width Modulation (PWM) and Fan tach controller. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20231018181925.1826042-2-tmaimon77@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-29hwmon: Add driver for ltc2991Antoniu Miclaus
Add support for LTC2991 Octal I2C Voltage, Current, and Temperature Monitor. The LTC2991 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the eight monitors can individually measure supply voltages and can be paired for differential measurements of current sense resistors or temperature sensing transistors. Additional measurements include internal temperature and internal VCC. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20231026103413.27800-2-antoniu.miclaus@analog.com [groeck: Fixed up documentation warning] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-29Linux 6.6v6.6Linus Torvalds
2023-10-28Merge tag 'x86-urgent-2023-10-28' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 fixes from Ingo Molnar: - Fix a possible CPU hotplug deadlock bug caused by the new TSC synchronization code - Fix a legacy PIC discovery bug that results in device troubles on affected systems, such as non-working keybards, etc - Add a new Intel CPU model number to <asm/intel-family.h> * tag 'x86-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tsc: Defer marking TSC unstable to a worker x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility x86/cpu: Add model number for Intel Arrow Lake mobile processor
2023-10-28Merge tag 'irq-urgent-2023-10-28' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Ingo Molnar: "Restore unintentionally lost quirk settings in the GIC irqchip driver, which broke certain devices" * tag 'irq-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3-its: Don't override quirk settings with default values
2023-10-28Merge tag 'perf-urgent-2023-10-28' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf event fix from Ingo Molnar: "Fix a potential NULL dereference bug" * tag 'perf-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix potential NULL deref
2023-10-28Merge tag 'probes-fixes-v6.6-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes fixes from Masami Hiramatsu: - tracing/kprobes: Fix kernel-doc warnings for the variable length arguments - tracing/kprobes: Fix to count the symbols in modules even if the module name is not specified so that user can probe the symbols in the modules without module name * tag 'probes-fixes-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/kprobes: Fix symbol counting logic by looking at modules as well tracing/kprobes: Fix the description of variable length arguments
2023-10-28Merge tag 'dma-mapping-6.6-2023-10-28' of ↵Linus Torvalds
git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping fix from Christoph Hellwig: - reduce the initialy dynamic swiotlb size to remove an annoying but harmless warning from the page allocator (Petr Tesarik) * tag 'dma-mapping-6.6-2023-10-28' of git://git.infradead.org/users/hch/dma-mapping: swiotlb: do not try to allocate a TLB bigger than MAX_ORDER pages
2023-10-28Merge tag 'char-misc-6.6-final' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some very small driver fixes for 6.6-final that have shown up in the past two weeks. Included in here are: - tiny fastrpc bugfixes for reported errors - nvmem register fixes - iio driver fixes for some reported problems - fpga test fix - MAINTAINERS file update for fpga All of these have been in linux-next this week with no reported problems" * tag 'char-misc-6.6-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: fpga: Fix memory leak for fpga_region_test_class_find() fpga: m10bmc-sec: Change contact for secure update driver fpga: disable KUnit test suites when module support is enabled iio: afe: rescale: Accept only offset channels nvmem: imx: correct nregs for i.MX6ULL nvmem: imx: correct nregs for i.MX6UL nvmem: imx: correct nregs for i.MX6SLL misc: fastrpc: Unmap only if buffer is unmapped from DSP misc: fastrpc: Clean buffers on remote invocation failures misc: fastrpc: Free DMA handles for RPC calls with no arguments misc: fastrpc: Reset metadata buffer to avoid incorrect free iio: exynos-adc: request second interupt only when touchscreen mode is used iio: adc: xilinx-xadc: Correct temperature offset/scale for UltraScale iio: adc: xilinx-xadc: Don't clobber preset voltage/temperature thresholds dt-bindings: iio: add missing reset-gpios constrain
2023-10-28Merge tag 'i2c-for-6.6-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Bugfixes for Axxia when it is a target and for PEC handling of stm32f7. Plus, fix an OF node leak pattern in the mux subsystem" * tag 'i2c-for-6.6-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: stm32f7: Fix PEC handling in case of SMBUS transfers i2c: muxes: i2c-mux-gpmux: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-mux-pinctrl: Use of_get_i2c_adapter_by_node() i2c: aspeed: Fix i2c bus hang in slave read
2023-10-28dt-bindings: hwmon: ltc2991: add bindingsAntoniu Miclaus
Add dt-bindings for ltc2991 octal i2c voltage, current and temperature monitor. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20231026103413.27800-1-antoniu.miclaus@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (pmbus/max31785) Add delay between bus accessesLakshmi Yadlapati
The MAX31785 has shown erratic behaviour across multiple system designs, unexpectedly clock stretching and NAKing transactions. Experimentation shows that this seems to be triggered by a register access directly back to back with a previous register write. Experimentation also shows that inserting a small delay after register writes makes the issue go away. Use a similar solution to what the max15301 driver does to solve the same problem. Create a custom set of bus read and write functions that make sure that the delay is added. Signed-off-by: Lakshmi Yadlapati <lakshmiy@us.ibm.com> Link: https://lore.kernel.org/r/20231027044346.2167548-1-lakshmiy@us.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (ina238) add ina237 supportRichard Leitner
The INA237 "85-V, 16-Bit, Precision Power Monitor With I2C Interface" is basically the same as INA328. Therefore add a corresponding compatible to the driver. According to the datasheet the main difference is the current and power monitoring accuracy: +------------------------+---------------+---------------+ | | INA238 | INA237 | +------------------------+---------------+---------------+ | Offset voltage | +/- 5µV | +/- 50µV | | Offset drift | +/- 0.02µV/°C | +/- 0.02µV/°C | | Gain error | +/- 0.1% | +/- 0.3% | | Gain error drift | +/- 25ppm/°C | +/- 50ppm/°C | | Common mode rejection | 140dB | 120dB | | Power accuracy | 0.7% | 1.6% | +------------------------+---------------+---------------+ As well as the missing DEVICE_ID register at 0x3F, which is currently not in use by the driver. Signed-off-by: Richard Leitner <richard.leitner@linux.dev> Link: https://lore.kernel.org/r/20231026-ina237-v2-1-dec44811a3c9@linux.dev Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28dt-bindings: hwmon: ti,ina2xx: add ti,ina237Richard Leitner
Add ti,ina237 binding to ti,ina2xx as they are very similar and may share the same properties. Signed-off-by: Richard Leitner <richard.leitner@linux.dev> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20231026-ina237-v2-2-dec44811a3c9@linux.dev Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (asus-ec-sensors) add ROG Crosshair X670E Gene.Ellie Hermaszewska
Only the temp sensors that I can verify are present. T_Sensor is the temperature reading of a 10kΩ β=3435K NTC thermistor optionally connected to the T_SENSOR header. The other sensors are as found on the X670E Hero. Signed-off-by: Ellie Hermaszewska <kernel@monoid.al> Link: https://lore.kernel.org/r/20231026104332.906357-1-kernel@monoid.al Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (max31827) handle vref regulatorAntoniu Miclaus
Add missing implementation for the max31827 supply regulator. This is a hardware required property that is not handled. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20230925122929.10610-1-antoniu.miclaus@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (ina3221) Add support for channel summation disableNinad Malwade
The INA3221 allows the Critical alert pin to be controlled by the summation control function. This function adds the single shunt-voltage conversions for the desired channels in order to compare the combined sum to the programmed limit. The Shunt-Voltage Sum Limit register contains the programmed value that is compared to the value in the Shunt-Voltage Sum register in order to determine if the total summed limit is exceeded. If the shunt-voltage sum limit value is exceeded, the Critical alert pin pulls low. For the summation limit to have a meaningful value, we have to use the same shunt-resistor value on all included channels. Unless equal shunt-resistor values are used for each channel, the summation control function cannot be used and it is not enabled by the driver. To address this, add support to disable the summation of specific channels via device tree property "ti,summation-disable". The channel which has this property would be excluded from the calculation of summation control function. For example, summation control function calculates Shunt-Voltage Sum as: - input_shunt_voltage_summation = input_shunt_voltage_channel1 + input_shunt_voltage_channel2 + input_shunt_voltage_channel3 If we want the summation to only use channel1 and channel3, we can add 'ti,summation-disable' property in device tree node for channel2. Then the calculation will skip channel2. - input_shunt_voltage_summation = input_shunt_voltage_channel1 + input_shunt_voltage_channel3 Note that we only want the channel to be skipped for summation control function rather than completely disabled. Therefore, even if we add the property 'ti,summation-disable', the channel is still enabled and functional. Finally, create debugfs entries that display if summation is disabled for each of the channels. Signed-off-by: Rajkumar Kasirajan <rkasirajan@nvidia.com> Signed-off-by: Ninad Malwade <nmalwade@nvidia.com> Co-developed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20230929103650.86074-4-jonathanh@nvidia.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28dt-bindings: hwmon: ina3221: Add ti,summation-disableJon Hunter
The INA3221 has a critical alert pin that can be controlled by the summation control function. This function adds the single shunt-voltage conversions for the desired channels in order to compare the combined sum to the programmed limit. The Shunt-Voltage Sum Limit register contains the programmed value that is compared to the value in the Shunt-Voltage Sum register in order to determine if the total summed limit is exceeded. If the shunt-voltage sum limit value is exceeded, the critical alert pin pulls low. For the summation limit to have a meaningful value, it is necessary to use the same shunt-resistor value on all included channels. Add a new vendor specific property, 'ti,summation-disable', to allow specific channels to be excluded from the summation control function if the shunt resistor is different to other channels or the channel should not be considered for triggering the critical alert pin. Note that the ina3221 has always supported summing the various input channels and summation is enabled by default if the shunt-resistor values are the same. This change simply provides a way to exclude inputs from the summation. If this property is not populated, then the functionality of the driver does not change. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Ninad Malwade <nmalwade@nvidia.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230929103650.86074-3-jonathanh@nvidia.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28dt-bindings: hwmon: ina3221: Convert to json-schemaNinad Malwade
Convert the TI INA3221 bindings from the free-form text format to json-schema. Note that the INA3221 input channels default to enabled in the chip. Unless channels are explicitly disabled in device-tree, input channels will be enabled. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ninad Malwade <nmalwade@nvidia.com> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230929103650.86074-2-jonathanh@nvidia.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (pmbus/mpq7932) Add a support for mpq2286 Power Management ICSaravanan Sekar
The MPQ2286 is a programmable, high frequency synchronous buck regulator designed to power a variety of Automotive system peripherals. Single buck converters with hardware monitoring capability is configurable over PMBus interface. Signed-off-by: Saravanan Sekar <saravanan@linumiz.com> Link: https://lore.kernel.org/r/20231011164754.449399-5-saravanan@linumiz.com [groeck: Updated subject (mpq2286 -> mpq7932)] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (pmbus/core) Add helper macro to define single pmbus regulatorSaravanan Sekar
The bindings for single instance regulator should be named with no instance (e.g., buck not buck0). Introduce a new helper macro to define the single pmbus regulator. Signed-off-by: Saravanan Sekar <saravanan@linumiz.com> Link: https://lore.kernel.org/r/20231011164754.449399-4-saravanan@linumiz.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28regulator: dt-bindings: Add mps,mpq2286 power-management ICSaravanan Sekar
Document mpq2286 power-management IC. Signed-off-by: Saravanan Sekar <saravanan@linumiz.com> Acked-by: Mark Brown <broonie@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20231011164754.449399-3-saravanan@linumiz.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (pmbus/mpq7932) Get page count based on chip infoSaravanan Sekar
Get page count using compatible match to support the series of chipsets which differs in number of regualator/page. Signed-off-by: Saravanan Sekar <saravanan@linumiz.com> Link: https://lore.kernel.org/r/20231011164754.449399-2-saravanan@linumiz.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28dt-bindings: hwmon: Add possible new properties to max31827 bindingsDaniel Matyas
These modify the corresponding bits in the configuration register. adi,comp-int is a hardware property, because it affects the behavior of the interrupt signal and whatever it is connected to. adi,timeout-enable is a hardware property, because it affects i2c bus operation. Signed-off-by: Daniel Matyas <daniel.matyas@analog.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230919093456.10592-3-daniel.matyas@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (max31827) Modify conversion wait timeDaniel Matyas
There is nothing in the datasheet indicating that the 1ms error is needed and I didn't encounter any error during testing with 140ms wait time. Signed-off-by: Daniel Matyas <daniel.matyas@analog.com> Link: https://lore.kernel.org/r/20230919093456.10592-2-daniel.matyas@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (max31827) Make code cleanerDaniel Matyas
Used enums and while loops to replace switch for selecting and getting update interval from conversion rate bits. Divided the write_alarm_val function into 2 functions. The new function is more generic: it can be used not only for alarm writes, but for any kind of writes which require the device to be in shutdown mode. Signed-off-by: Daniel Matyas <daniel.matyas@analog.com> Link: https://lore.kernel.org/r/20230919093456.10592-1-daniel.matyas@analog.com [groeck: Reverted error return value change (EOPNOTSUPP -> EINVAL)] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28MAINTAINERS: Add Hal as one of the maintainers of SFCTEMP HWMON DRIVERHal Feng
As he is the submitter of this driver, add his mail so he can maintain the driver and easily reply in the mailing list. Acked-by: Emil Renner Berthing <kernel@esmil.dk> Signed-off-by: Hal Feng <hal.feng@starfivetech.com> Link: https://lore.kernel.org/r/20230928075249.109459-1-hal.feng@starfivetech.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-10-28hwmon: (nct6683) Add another customer ID for ASRock X670E TaichiAlexander Koskovich
This value was found on an ASRock X670E Taichi with an NCT6686D chip. Signed-off-by: Alexander Koskovich <akoskovich@pm.me> Link: https://lore.kernel.org/r/20231023182442.21943-1-akoskovich@pm.me Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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