kernel/linux.git/drivers/mfd/Makefile, branch v7.2-rc1

mfd: ezx-pcap: Remove unused driver

2026-06-17T10:32:14+00:00

Support for the Motorola EZX phones based on Intel PXA processors was removed in 2022, but this driver remained present in the tree. As far as I can tell, the support was never quite functional upstream because the board files did not actually instantiate the SPI device for the PCAP. There are still also drivers for the various mfd cells: keys, touchscreen, regulator and rtc, all of which are obviously orphaned as well but can be removed separately as the Kconfig dependency now prevents them from being enabled. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202604301209.f1YXTsIr-lkp@intel.com/ Signed-off-by: Arnd Bergmann Reviewed-by: Linus Walleij Acked-by: Harald Welte Reviewed-by: Bartosz Golaszewski Link: https://patch.msgid.link/20260430162855.2029285-1-arnd@kernel.org Signed-off-by: Lee Jones

mfd: wl1273-core: Remove unused driver

2025-11-06T14:03:37+00:00

The wl1273 FM radio is on Arnd's unused driver list: https://lore.kernel.org/lkml/a15bb180-401d-49ad-a212-0c81d613fbc8@app.fastmail.com/ Remove the core. Signed-off-by: Dr. David Alan Gilbert Acked-by: Arnd Bergmann Signed-off-by: Lee Jones

mfd: pf1550: Add core driver for the PF1550 PMIC

2025-10-21T15:43:32+00:00

There are 3 sub-devices for which the drivers will be added in subsequent patches. Signed-off-by: Samuel Kayode Reviewed-by: Frank Li Tested-by: Sean Nyekjaer Link: https://patch.msgid.link/20251001-pf1550-v12-2-a3302aa41687@savoirfairelinux.com Signed-off-by: Lee Jones

mfd: ls2kbmc: Introduce Loongson-2K BMC core driver

2025-10-01T09:28:49+00:00

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 Signed-off-by: Chong Qiao Reviewed-by: Huacai Chen Acked-by: Corey Minyard Signed-off-by: Binbin Zhou Link: https://lore.kernel.org/r/0dc1fd53020ce2562453961ffed2cd9eb8f359e1.1756987761.git.zhoubinbin@loongson.cn Signed-off-by: Lee Jones

Merge branches 'ib-mfd-char-crypto-6.18', 'ib-mfd-gpio-6.18', '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

2025-10-01T09:27:35+00:00

mfd: Add max7360 support

2025-09-16T14:24:48+00:00

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 Co-developed-by: Mathieu Dubois-Briand Signed-off-by: Mathieu Dubois-Briand Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-2-435cfda2b1ea@bootlin.com Signed-off-by: Lee Jones

mfd: Add core driver for Nuvoton NCT6694

2025-09-16T13:41:57+00:00

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 Link: https://lore.kernel.org/r/20250912091952.1169369-2-a0282524688@gmail.com Signed-off-by: Lee Jones

mfd: bq257xx: Add support for BQ25703A core driver

2025-09-11T14:54:43+00:00

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 Link: https://lore.kernel.org/r/20250904160530.66178-3-macroalpha82@gmail.com Signed-off-by: Lee Jones

mfd: Add support for Loongson Security Engine chip controller

2025-09-02T11:29:57+00:00

Loongson Security Engine chip supports RNG, SM2, SM3 and SM4 accelerator engines. This is the base driver for other specific engine drivers. Co-developed-by: Yinggang Gu Signed-off-by: Yinggang Gu Signed-off-by: Qunqin Zhao Reviewed-by: Huacai Chen Link: https://lore.kernel.org/r/20250705072045.1067-2-zhaoqunqin@loongson.cn Signed-off-by: Lee Jones

mfd: Add Apple Silicon System Management Controller

2025-07-24T08:47:33+00:00

The System Management Controller (SMC) on Apple Silicon machines is a piece of hardware that exposes various functionalities such as temperature sensors, voltage/power meters, shutdown/reboot handling, GPIOs and more. Communication happens via a shared mailbox using the RTKit protocol which is also used for other co-processors. The SMC protocol then allows reading and writing many different keys which implement the various features. The MFD core device handles this protocol and exposes it to the sub-devices. Some of the sub-devices are potentially also useful on pre-M1 Apple machines and support for SMCs on these machines can be added at a later time. Co-developed-by: Hector Martin Signed-off-by: Hector Martin Reviewed-by: Alyssa Rosenzweig Reviewed-by: Neal Gompa Signed-off-by: Sven Peter Link: https://lore.kernel.org/r/20250610-smc-6-15-v7-5-556cafd771d3@kernel.org Signed-off-by: Lee Jones