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2025-10-01Merge tag 'soc-drivers-6.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC driver updates from Arnd Bergmann: "Lots of platform specific updates for Qualcomm SoCs, including a new TEE subsystem driver for the Qualcomm QTEE firmware interface. Added support for the Apple A11 SoC in drivers that are shared with the M1/M2 series, among more updates for those. Smaller platform specific driver updates for Renesas, ASpeed, Broadcom, Nvidia, Mediatek, Amlogic, TI, Allwinner, and Freescale SoCs. Driver updates in the cache controller, memory controller and reset controller subsystems. SCMI firmware updates to add more features and improve robustness. This includes support for having multiple SCMI providers in a single system. TEE subsystem support for protected DMA-bufs, allowing hardware to access memory areas that managed by the kernel but remain inaccessible from the CPU in EL1/EL0" * tag 'soc-drivers-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (139 commits) soc/fsl/qbman: Use for_each_online_cpu() instead of for_each_cpu() soc: fsl: qe: Drop legacy-of-mm-gpiochip.h header from GPIO driver soc: fsl: qe: Change GPIO driver to a proper platform driver tee: fix register_shm_helper() pmdomain: apple: Add "apple,t8103-pmgr-pwrstate" dt-bindings: spmi: Add Apple A11 and T2 compatible serial: qcom-geni: Load UART qup Firmware from linux side spi: geni-qcom: Load spi qup Firmware from linux side i2c: qcom-geni: Load i2c qup Firmware from linux side soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem soc: qcom: geni-se: Cleanup register defines and update copyright dt-bindings: qcom: se-common: Add QUP Peripheral-specific properties for I2C, SPI, and SERIAL bus Documentation: tee: Add Qualcomm TEE driver tee: qcom: enable TEE_IOC_SHM_ALLOC ioctl tee: qcom: add primordial object tee: add Qualcomm TEE driver tee: increase TEE_MAX_ARG_SIZE to 4096 tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF tee: add close_context to TEE driver operation ...
2025-10-01Merge tag 'for-v6.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: "Power-supply core: - introduce adc-battery-helper for capacity estimation based on simple ADC readings of battery voltage and current - add new properties for battery internal resistance and state of health Power-supply drivers: - ug3105_battery: convert to adc-battery-helper - intel_dc_ti_battery: New driver for Intel Dollar Cove TI batteries - rt9467-charger: add voltage and current ADC support - sbs-charger: support multiple instances - qcom_battmgr: - add charge control support - add support for state of health and internal resistance - max77705_charger: - big driver cleanup - add support for setting charge current - misc minor fixes and cleanups" * tag 'for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (38 commits) power: supply: qcom_battmgr: handle charging state change notifications power: supply: max77705_charger: use REGMAP_IRQ_REG_LINE macro power: supply: max77705_charger: rework interrupts power: supply: max77705_charger: add writable properties power: supply: max77705_charger: return error when config fails power: supply: max77705_charger: use regfields for config registers power: supply: max77705_charger: refactoring: rename charger to chg mfd: max77705: max77705_charger: move active discharge setting to mfd parent power: supply: max77976_charger: fix constant current reporting power: supply: qcom_battmgr: Add charge control support dt-bindings: soc: qcom,pmic-glink: Add charge limit nvmem properties power: supply: qcom_battmgr: update compats for SM8550 and X1E80100 power: supply: qcom_battmgr: Add state_of_health property power: supply: qcom_battmgr: Add resistance power supply property power: supply: core: Add state_of_health power supply property power: supply: core: Add resistance power supply property power: supply: rx51: remove redundant condition checks dt-bindings: power: supply: bq24190: document charge enable pin dt-bindings: power: supply: bq27xxx: document optional interrupt power: supply: intel_dc_ti_battery: Drop no longer relevant comment ...
2025-10-01Merge tag 'mfd-next-6.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "This round of updates contains a fair amount of new device support, a couple of fixes and some refactoring. The most notable additions include new drivers for Loongson's Security Engine, RNG and TPM, new drivers for TI's TPS6594 Power Button and BQ257xx Charger ICs. The rest of the set provides a return value check fix and a refactoring to use a more modern GPIO API for the VEXPRESS sysreg driver, the removal of a deprecated IRQ ACK function from the MC13xxx RTC driver and a new DT binding for the aforementioned TI BQ257xx charger. New Support & Features: - Add a suite of drivers for the Loongson Security Engine, including the core controller, a Random Number Generator (RNG) and Trusted Platform Module (TPM) support. - Introduce support for the TI TPS6594 PMIC's power button, including the input driver, MFD cell registration, and a system power-off handler. - Add comprehensive support for the TI BQ257xx series of charger ICs, including the core MFD driver and a power supply driver for the charger functionality. Improvements & Fixes: - Check the return value of devm_gpiochip_add_data() in the VEXPRESS sysreg driver to prevent potential silent failures. Cleanups & Refactoring: - Add a MAINTAINERS entry for the new Loongson Security Engine drivers. - Convert the VEXPRESS sysreg driver to use the modern generic GPIO chip API. Removals: - Remove the deprecated and unused mc13xxx_irq_ack() function from the MC13xxx RTC, input and touchscreen drivers. Device Tree Bindings Updates: - Add device tree bindings for the TI BQ25703A charger" * tag 'mfd-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (69 commits) mfd: simple-mfd-i2c: Add compatible string for LX2160ARDB mfd: simple-mfd-i2c: Keep compatible strings in alphabetical order dt-bindings: mfd: twl: Add missing sub-nodes for TWL4030 & TWL603x dt-bindings: watchdog: Add SMARC-sAM67 support dt-bindings: mfd: tps6594: Allow gpio-line-names mfd: intel-lpss: Add Intel Wildcat Lake LPSS PCI IDs mfd: 88pm886: Add GPADC cell mfd: vexpress-sysreg: Use more common syntax for compound literals mfd: rz-mtu3: Fix MTU5 NFCR register offset mfd: max77705: Setup the core driver as an interrupt controller mfd: cs42l43: Remove IRQ masking in suspend mfd: cs42l43: Move IRQ enable/disable to encompass force suspend mfd: ls2kbmc: Add Loongson-2K BMC reset function support mfd: ls2kbmc: Introduce Loongson-2K BMC core driver mfd: bd71828, bd71815: Prepare for power-supply support dt-bindings: mfd: aspeed: Add AST2700 SCU compatibles dt-bindings: mfd: Convert aspeed,ast2400-p2a-ctrl to DT schema dt-bindings: mfd: fsl,mc13xxx: Add buttons node dt-bindings: mfd: fsl,mc13xxx: Convert txt to DT schema mfd: macsmc: Add "apple,t8103-smc" compatible ...
2025-10-01Merge tag 'gpio-updates-for-v6.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "There are two new drivers and support for more models in existing ones. The generic GPIO API has been reworked and all users converted which allowed us to move the fields specific to the generic GPIO implementation out of the high-level struct gpio_chip into its own structure that wraps the gpio_chip. Other than that, there's nothing too exciting. Mostly minor tweaks and fixes all over the place, some refactoring and some small new features in helper modules. GPIO core: - add support for sparse pin ranges to the glue between GPIO and pinctrl - use a common prefix across all GPIO descriptor flags for improved namespacing New drivers: - add new GPIO driver for the Nuvoton NCT6694 - add new GPIO driver for MAX7360 Driver improvements: - add support for Tegra 256 to the gpio-tegra186 driver - add support for Loongson-2K0300 to the gpio-loongson-64bit driver - refactor the gpio-aggregator module to expose its GPIO forwarder API to other in-kernel users (to enable merging of a new pinctrl driver that uses it) - convert all remaining drivers to using the modernized generic GPIO chip API and remove the old interface - stop displaying global GPIO numbers in debugfs output of controller drivers - extend the gpio-regmap helper with a new config option and improve its support for GPIO interrupts - remove redundant fast_io parameter from regmap configs in GPIO drivers that already use MMIO regmaps which imply it - add support for a new model in gpio-mmio: ixp4xx expansion bus - order includes alphabetically in a few drivers for better readability - use generic device properties where applicable - use devm_mutex_init() where applicable - extend build coverage of drivers by enabling more to be compiled with COMPILE_TEST enabled - allow building gpio-stmpe as a module - use dev_err_probe() where it makes sense in drivers Late driver fixes: - fix setting GPIO direction to output in gpio-mpfs Documentation: - document the usage of software nodes with GPIO chips Device-tree bindings: - Add DT bindings documents for new hardware: Tegra256, MAX7360 - Document a new model in Loongson bindings: LS2K0300 - Document a new model using the generic GPIO binding: IXP4xx - Convert the DT binding for fsl,mxs-pinctrl to YAML - fix the schema ID in the "trivial" GPIO schema - describe GPIO hogs in the generic GPIO binding" * tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (122 commits) gpio: mpfs: fix setting gpio direction to output gpio: generic: move GPIO_GENERIC_ flags to the correct header gpio: generic: rename BGPIOF_ flags to GPIO_GENERIC_ gpio: nomadik: fix the debugfs helper stub MAINTAINERS: Add entry on MAX7360 driver input: misc: Add support for MAX7360 rotary input: keyboard: Add support for MAX7360 keypad gpio: max7360: Add MAX7360 gpio support gpio: regmap: Allow to provide init_valid_mask callback gpio: regmap: Allow to allocate regmap-irq device pwm: max7360: Add MAX7360 PWM support pinctrl: Add MAX7360 pinctrl driver mfd: Add max7360 support dt-bindings: mfd: gpio: Add MAX7360 rtc: Add Nuvoton NCT6694 RTC support hwmon: Add Nuvoton NCT6694 HWMON support watchdog: Add Nuvoton NCT6694 WDT support can: Add Nuvoton NCT6694 CANFD support i2c: Add Nuvoton NCT6694 I2C support gpio: Add Nuvoton NCT6694 GPIO support ...
2025-10-01mfd: simple-mfd-i2c: Add compatible string for LX2160ARDBIoana Ciornei
Extend the list of supported devices with the QIXIS FPGA found on the LX2160ARDB board. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: simple-mfd-i2c: Keep compatible strings in alphabetical orderIoana Ciornei
Reorder the of_device_id structures so that they are in alphabetical order. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: intel-lpss: Add Intel Wildcat Lake LPSS PCI IDsIlpo Järvinen
Add Intel Wildcat Lake PCI IDs. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250915112936.10696-1-ilpo.jarvinen@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: 88pm886: Add GPADC cellDuje Mihanović
Add a cell for the PMIC's onboard General Purpose ADC. Acked-by: Karel Balej <balejk@matfyz.cz> # for the PMIC Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz> Link: https://lore.kernel.org/r/20250911-88pm886-gpadc-v4-3-60452710d3a0@dujemihanovic.xyz Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: vexpress-sysreg: Use more common syntax for compound literalsBartosz Golaszewski
The (typeof(foo)) construct is unusual in the kernel, use a more typical syntax by explicitly spelling out the type. Link: https://lore.kernel.org/all/20250909-gpio-mmio-gpio-conv-part4-v1-13-9f723dc3524a@linaro.org/ Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20250910-make-compound-literals-normal-again-v1-1-076ee7738a0b@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: rz-mtu3: Fix MTU5 NFCR register offsetCosmin Tanislav
The NFCR register for MTU5 is at 0x1a95 offset according to Datasheet Page 725, Table 16.4. The address of all registers is offset by 0x1200, making the proper address of MTU5 NFCR register be 0x895. Cc: stable@vger.kernel.org Fixes: 654c293e1687 ("mfd: Add Renesas RZ/G2L MTU3a core driver") Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20250910175914.12956-1-cosmin-gabriel.tanislav.xa@renesas.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: max77705: Setup the core driver as an interrupt controllerDzmitry Sankouski
Current implementation describes only MFD's own topsys interrupts. However, max77705 has a register which indicates interrupt source, i.e. it acts as an interrupt controller. There's 4 interrupt sources in max77705: topsys, charger, fuelgauge, usb type-c manager. Setup max77705 MFD parent as an interrupt controller. Delete topsys interrupts because currently unused. Remove shared interrupt flag, because we're are an interrupt controller now, and subdevices should request interrupts from us. Fixes: c8d50f029748 ("mfd: Add new driver for MAX77705 PMIC") Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com> Link: https://lore.kernel.org/r/20250909-max77705-fix_interrupt_handling-v3-1-233c5a1a20b5@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: cs42l43: Remove IRQ masking in suspendCharles Keepax
Now the individual child drivers mask their own IRQs there is no need for the MFD code to do so anymore. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20250903094549.271068-7-ckeepax@opensource.cirrus.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: cs42l43: Move IRQ enable/disable to encompass force suspendCharles Keepax
As pm_runtime_force_suspend() will force the device state to suspend, the driver needs to ensure no IRQ handlers are currently running. If not those handlers may find they are now running on suspended hardware despite holding a PM runtime reference. disable_irq() will sync any currently running handlers, so move the IRQ disabling to cover the whole of the forced suspend state to avoid such race conditions. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20250903094549.271068-6-ckeepax@opensource.cirrus.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: ls2kbmc: Add Loongson-2K BMC reset function supportBinbin Zhou
Since the display is a sub-function of the Loongson-2K BMC, when the BMC reset, the entire BMC PCIe is disconnected, including the display which is interrupted. Quick overview of the entire LS2K BMC reset process: There are two types of reset methods: soft reset (BMC-initiated reboot of IPMI reset command) and BMC watchdog reset (watchdog timeout). First, regardless of the method, an interrupt is generated (PCIe interrupt for soft reset/GPIO interrupt for watchdog reset); Second, during the interrupt process, the system enters bmc_reset_work, clears the bus/IO/mem resources of the LS7A PCI-E bridge, waits for the BMC reset to begin, then restores the parent device's PCI configuration space, waits for the BMC reset to complete, and finally restores the BMC PCI configuration space. Display restoration occurs last. Co-developed-by: Chong Qiao <qiaochong@loongson.cn> Signed-off-by: Chong Qiao <qiaochong@loongson.cn> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Acked-by: Corey Minyard <corey@minyard.net> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Link: https://lore.kernel.org/r/de4e04b42ff9ee282f86f9bb9efbf959a9848205.1756987761.git.zhoubinbin@loongson.cn Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: ls2kbmc: Introduce Loongson-2K BMC core driverBinbin Zhou
The Loongson-2K Board Management Controller provides an PCIe interface to the host to access the feature implemented in the BMC. The BMC is assembled on a server similar to the server machine with Loongson-3 CPU. It supports multiple sub-devices like DRM and IPMI. Co-developed-by: Chong Qiao <qiaochong@loongson.cn> Signed-off-by: Chong Qiao <qiaochong@loongson.cn> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Acked-by: Corey Minyard <corey@minyard.net> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Link: https://lore.kernel.org/r/0dc1fd53020ce2562453961ffed2cd9eb8f359e1.1756987761.git.zhoubinbin@loongson.cn Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: bd71828, bd71815: Prepare for power-supply supportMatti Vaittinen
Add core support for ROHM BD718(15/28/78) PMIC's charger blocks. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Link: https://lore.kernel.org/r/20250821-bd71828-charger-v3-1-cc74ac4e0fb9@kemnade.info Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: macsmc: Add "apple,t8103-smc" compatibleJanne Grunau
After discussion with the devicetree maintainers we agreed to not extend lists with the generic compatible "apple,smc" anymore [1]. Use "apple,t8103-smc" as base compatible as it is the SoC the driver and bindings were written for. [1]: https://lore.kernel.org/asahi/12ab93b7-1fc2-4ce0-926e-c8141cfe81bf@kernel.org/ Signed-off-by: Janne Grunau <j@jannau.net> Link: https://lore.kernel.org/r/20250828-dt-apple-t6020-v1-18-507ba4c4b98e@jannau.net Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: core: Increment of_node's refcount before linking it to the platform deviceBastien Curutchet
When an MFD device is added, a platform_device is allocated. If this device is linked to a DT description, the corresponding OF node is linked to the new platform device but the OF node's refcount isn't incremented. As of_node_put() is called during the platform device release, it leads to a refcount underflow. Call of_node_get() to increment the OF node's refcount when the node is linked to the newly created platform device. Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com> Link: https://lore.kernel.org/r/20250820-mfd-refcount-v1-1-6dcb5eb41756@bootlin.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: simple-mfd-i2c: Add SpacemiT P1 supportAlex Elder
Enable support for the RTC and regulators found in the SpacemiT P1 PMIC. Support is implemented by the simple I2C MFD driver. The P1 PMIC is normally implemented with the SpacemiT K1 SoC. This PMIC provides 6 buck converters and 12 LDO regulators. It also implements a switch, watchdog timer, real-time clock, and more. Initially its RTC and regulators are supported. Signed-off-by: Alex Elder <elder@riscstar.com> Link: https://lore.kernel.org/r/20250825172057.163883-3-elder@riscstar.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: aat2870: Add GPIOLIB_LEGACY dependencyArnd Bergmann
This driver uses the legacy gpiolib interfaces to get gpio numbers from platform data. There are no in-tree users of this driver, so nothing defines the platform data. Add a dependency on GPIOLIB_LEGACY for the moment to avoid the build failure, and make sure the sound driver does not get built without the mfd portion either pass that dependency along. Alternatively, we could remove the mfd driver along with the backlight and regulator portions. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20250808151822.536879-15-arnd@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: si476x: Add GPIOLIB_LEGACY dependencyArnd Bergmann
This driver uses the legacy gpiolib interfaces to get gpio numbers from platform data: drivers/mfd/si476x-i2c.c: In function 'si476x_core_start': drivers/mfd/si476x-i2c.c:133:21: error: implicit declaration of function 'gpio_is_valid'; did you mean 'uuid_is_valid'? [-Werror=implicit-function-declaration] 133 | if (gpio_is_valid(core->gpio_reset)) There are no in-tree users of this driver, so nothing defines the platform data. Add a dependency on GPIOLIB_LEGACY for the moment to avoid the build failure, and make sure the sound driver does not get built without the mfd portion either pass that dependency along. Alternatively, we could remove the mfd driver along with the radio and sound portions. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202507231653.UFlH2dMO-lkp@intel.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20250808151822.536879-14-arnd@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: Remove unneeded 'fast_io' parameter in regmap_configWolfram Sang
When using MMIO with regmap, fast_io is implied. No need to set it again. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20250813161517.4746-10-wsa+renesas@sang-engineering.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: arizona: Make legacy gpiolib interface optionalArnd Bergmann
The only machine that still uses the old gpio number based interface is the wlf_cragg_6410 board file. In order to remove the dependency on the interfaces, add #ifdef blocks here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20250808151822.536879-13-arnd@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: max899x: Use dedicated interrupt wake settersXichao Zhao
Use enable_irq_wake() and disable_irq_wake() instead of calling low-level irq_set_irq_wake() with a parameter. No functional changes. Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com> Link: https://lore.kernel.org/r/20250815100601.622923-1-zhao.xichao@vivo.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: kempld: Use PTR_ERR_OR_ZERO() to simplify codeXichao Zhao
Use the standard error pointer macro to shorten the code and simplify. Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com> Link: https://lore.kernel.org/r/20250812093104.103193-1-zhao.xichao@vivo.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: madera: Work around false-positive -Wininitialized warningArnd Bergmann
clang-21 warns about one uninitialized variable getting dereferenced in madera_dev_init: drivers/mfd/madera-core.c:739:10: error: variable 'mfd_devs' is uninitialized when used here [-Werror,-Wuninitialized] 739 | mfd_devs, n_devs, | ^~~~~~~~ drivers/mfd/madera-core.c:459:33: note: initialize the variable 'mfd_devs' to silence this warning 459 | const struct mfd_cell *mfd_devs; | ^ | = NULL The code is actually correct here because n_devs is only nonzero when mfd_devs is a valid pointer, but this is impossible for the compiler to see reliably. Change the logic to check for the pointer as well, to make this easier for the compiler to follow. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20250807071932.4085458-1-arnd@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: macsmc: Remove error prints for devm_add_action_or_reset()Waqar Hameed
When `devm_add_action_or_reset()` fails, it is due to a failed memory allocation and will thus return `-ENOMEM`. `dev_err_probe()` doesn't do anything when error is `-ENOMEM`. Therefore, remove the useless call to `dev_err_probe()` when `devm_add_action_or_reset()` fails, and just return the value instead. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Reviewed-by: Sven Peter <sven@kernel.org> Link: https://lore.kernel.org/r/pnd8qjym7td.a.out@axis.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: da9063: Split chip variant reading in two bus transactionsJens Kehne
We observed the initial probe of the da9063 failing in da9063_get_device_type in about 30% of boots on a Xilinx ZynqMP based board. The problem originates in da9063_i2c_blockreg_read, which uses a single bus transaction to turn the register page and then read a register. On the bus, this should translate to a write to register 0, followed by a read to the target register, separated by a repeated start. However, we found that after the write to register 0, the controller sometimes continues directly with the register address of the read request, without sending the chip address or a repeated start in between, which makes the read request invalid. To fix this, separate turning the page and reading the register into two separate transactions. This brings the initialization code in line with the rest of the driver, which uses register maps (which to my knowledge do not use repeated starts after turning the page). This has been included in our kernel for several months and was recently included in a shipped product. For us, it reliably fixes the issue, and we have not observed any new issues. While the underlying problem is probably with the i2c controller or its driver, I still propose a change here in the interest of robustness: First, I'm not sure this issue can be fixed on the controller side, since there are other issues related to repeated start which can't (AR# 60695, AR# 61664). Second, similar problems might exist with other controllers. Signed-off-by: Jens Kehne <jens.kehne@agilent.com> Link: https://lore.kernel.org/r/20250804133754.3496718-1-jens.kehne@agilent.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flagHans de Goede
Testing has shown that reading multiple registers at once (for 10-bit ADC values) does not work. Set the use_single_read regmap_config flag to make regmap split these for us. This should fix temperature opregion accesses done by drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for the upcoming drivers for the ADC and battery MFD cells. Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC") Cc: stable@vger.kernel.org Reviewed-by: Andy Shevchenko <andy@kernel.org> Signed-off-by: Hans de Goede <hansg@kernel.org> Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: qnap-mcu: Improve structure in qnap_mcu_execHeiko Stuebner
Now with guard(mutex) in place, we can make the function's structure a bit easier to read, by removing the nested if-else-clauses. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250804130726.3180806-5-heiko@sntech.de Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: qnap-mcu: Convert to guard(mutex) in qnap_mcu_execHeiko Stuebner
guard() makes sure that the mutex gets unlocked when the function returns and thus removes the need for unlock gotos or similar mechanisms and therefore allows for a simpler function structure. So convert the qnap_mcu_exec function to use it. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250804130726.3180806-4-heiko@sntech.de Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: qnap-mcu: Handle errors returned from qnap_mcu_writeHeiko Stuebner
qnap_mcu_write can return errors and those were not checked before. So do that now. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250804130726.3180806-3-heiko@sntech.de Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: kempld: Switch back to earlier ->init() behaviorHeijligen, Thomas
Commit 9e36775c22c7 ("mfd: kempld: Remove custom DMI matching code") removes the ability to load the driver if no matching system DMI data is found. Before this commit the driver could be loaded using alternative methods such as ACPI or `force_device_id` in the absence of a matching system DMI entry. Restore this ability while keeping the refactored `platform_device_info` table. Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/7d2c7e92253d851194a781720051536cca2722b8.camel@secunet.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: qnap-mcu: Add driver data for TS233 variantHeiko Stuebner
Add the TS233 compatible and affiliated driver data to qnap-mcu. The TS233 is mostly similar to the TS433, except not having any of the PCIe components, so there are only 2 drives. The fan pwm-limits from the vendor-configuration also are the same as for the ts433 variant. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250730173423.1878599-3-heiko@sntech.de Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: stmpe-i2c: Add missing MODULE_LICENSEAlexander Stein
This driver is licensed GPL-2.0-only, so add the corresponding module flag. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20250725071153.338912-3-alexander.stein@ew.tq-group.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: stmpe-spi: Add missing MODULE_LICENSEAlexander Stein
This driver is licensed GPL-2.0-only, so add the corresponding module flag. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20250725071153.338912-2-alexander.stein@ew.tq-group.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: stmpe-i2c: Use module_i2c_driver to remove boilerplateAlexander Stein
Driver implements feature of module_i2c_driver() manually. Replace it by that macro instead. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20250725070752.338376-3-alexander.stein@ew.tq-group.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: stmpe-spi: Use module_spi_driver to remove boilerplateAlexander Stein
Driver implements feature of module_spi_driver() manually. Replace it by that macro instead. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20250725070752.338376-2-alexander.stein@ew.tq-group.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: stmpe: Remove IRQ domain upon removalAlexander Stein
The IRQ domain is (optionally) added during stmpe_probe, but never removed. Add the call to stmpe_remove. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20250725070752.338376-1-alexander.stein@ew.tq-group.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: Kconfig: Fix spelling mistake "infontainment" -> "infotainment"Colin Ian King
There is a spelling mistake in the MFD_TIMBERDALE description. Fix it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20250724111459.141633-1-colin.i.king@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: adp5585: Drop useless return statementNuno Sá
In adp5585_reset_ev_parse(), when parsing the adi,reset-pulse-width-us property, we were returning in case it was found and valid. No point in doing that as we'll be returning anyways after the exiting the property scope. And it could actually lead to bugs if new properties happen to added after this one. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/linux-gpio/c85604d9e077511b8aa6ee0786579594cc0103d4.camel@gmail.com/T/#ma25557bd06ccd2531dc9c85ba6be74af781b81aa Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20250717-adp5585-drop-ret-v1-1-2ae65bd780aa@analog.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01mfd: simple-mfd-i2c: Add compatible strings for Layerscape QIXIS FPGAIoana Ciornei
The QIXIS FPGA found on Layerscape boards such as LX2160AQDS, LS1028AQDS etc deals with power-on-reset timing, muxing etc. Use the simple-mfd-i2c as its core driver by adding its compatible string (already found in some dt files). By using the simple-mfd-i2c driver, any child device will have access to the i2c regmap created by it. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Link: https://lore.kernel.org/r/20250707153120.1371719-1-ioana.ciornei@nxp.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-10-01Merge branches 'ib-mfd-char-crypto-6.18', 'ib-mfd-gpio-6.18', ↵Lee Jones
'ib-mfd-gpio-hwmon-i2c-can-rtc-watchdog-6.18', 'ib-mfd-gpio-input-pinctrl-pwm-6.18', 'ib-mfd-input-6.18', 'ib-mfd-input-rtc-6.18' and 'ib-mfd-power-regulator-6.18' into ibs-for-mfd-merged
2025-09-18mfd: max77705: max77705_charger: move active discharge setting to mfd parentDzmitry Sankouski
Active discharge setting is a part of MFD top level i2c device, hence cannot be controlled by charger. Writing to MAX77705_PMIC_REG_MAINCTRL1 register from charger driver is a mistake. Move active discharge setting to MFD parent driver. Fixes: a6a494c8e3ce ("power: supply: max77705: Add charger driver for Maxim 77705") Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com> Acked-by: Lee Jones <lee@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2025-09-18Merge tag 'ib-mfd-gpio-input-pinctrl-pwm-v6.18' of ↵Bartosz Golaszewski
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next Pull changes from the immutable branch between MFD, GPIO, Input, Pinctrl and PWM trees containing the GPIO driver for max7360.
2025-09-18Merge tag 'ib-mfd-gpio-hwmon-i2c-can-rtc-watchdog-v6.18' of ↵Bartosz Golaszewski
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next Pull changes from the immutable branch between MFD, GPIO, HWMON, I2C, CAN, RTC and Watchdog trees containing GPIO support for Nuvoton NCT6694.
2025-09-16mfd: Add max7360 supportKamel Bouhara
Add core driver to support MAX7360 i2c chip, multi function device with keypad, GPIO, PWM, GPO and rotary encoder submodules. Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com> Co-developed-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-2-435cfda2b1ea@bootlin.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16mfd: Add core driver for Nuvoton NCT6694Ming Yu
The Nuvoton NCT6694 provides an USB interface to the host to access its features. Sub-devices can use the USB functions nct6694_read_msg() and nct6694_write_msg() to issue a command. They can also request interrupt that will be called when the USB device receives its interrupt pipe. Signed-off-by: Ming Yu <a0282524688@gmail.com> Link: https://lore.kernel.org/r/20250912091952.1169369-2-a0282524688@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-11mfd: tps6594: Explicitly include bitfield.hNathan Chancellor
After a recent change that started using FIELD_GET() in tps6594-core.c, there is an error when bitfield.h is not implicitly included, such as when building allmodconfig for ARCH=hexagon: drivers/mfd/tps6594-core.c:767:7: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 767 | if (FIELD_GET(TPS65224_MASK_EN_PB_VSENSE_CONFIG, pwr_on) == TPS65224_EN_SEL_PB || | ^ Explicitly include bitfield.h to resolve the errors. Reported-by: kernel test robot <lkp@intel.com> Fixes: d766ca01c208 ("mfd: tps6594: Add power button functionality") Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Michael Walle <mwalle@kernel.org> Closes: https://lore.kernel.org/oe-kbuild-all/202509032356.LGa5hygM-lkp@intel.com/ Link: https://lore.kernel.org/r/20250904-mfd-tps6594-core-fix-bitfield-h-v1-1-5d0f00cfe58f@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-11mfd: bq257xx: Add support for BQ25703A core driverChris Morgan
The Texas Instruments BQ25703A is an integrated charger manager and boost converter. The MFD driver initializes the device for the regulator driver and power supply driver. Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Link: https://lore.kernel.org/r/20250904160530.66178-3-macroalpha82@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
generated by cgit (git 2.34.1) at 2025-10-18 15:21:51 +0000