kernel/git/next/linux-next.git/drivers/regulator/Makefile, branch master

regulator: Add MPS MPQ4210 buck-boost regulator driver

2026-09-10T15:53:11+00:00

The MPQ4210 is a 40V synchronous four-switch buck-boost controller with an I2C interface. Add a driver exposing voltage control and enable control through the regulator interface. The output voltage is programmed by an 11-bit feedback reference DAC with a 1mV step, split across REF_LSB[2:0] and REF_MSB[7:0], and is then scaled by the external feedback divider described in the device tree. Only 0.3V to 2.047V of that range is specified, so linear_min_sel holds the driver to it and the lower selectors are not offered. Scaled by the divider, that floor is not zero: 4.2V on a board with a gain of 14, and the core narrows regulator-min-microvolt to it. The same divider ratio applies to the slew rate, so the four reference slew rates that the Control 1 SR field selects are scaled into a per-device ramp_delay_table and the field is exposed through regulator_set_ramp_delay_regmap(). ramp_delay is initialised from the rate SR is currently programmed for, so the core waits in proportion to the size of each change; a board that sets regulator-ramp-delay reprograms SR and the core uses that value instead. Enabling follows the start-up sequence in the datasheet: commit the reference with the GO bit, wait 200ms, then set ENPWR. Control 1 bit 2 is documented as reserved but has to be set before the controller starts up, so probe sets it. The controller does not respond on the bus while EN is deasserted, so the enable GPIO is claimed before the first register access. Link: https://www.monolithicpower.com/en/mpq4210.html Signed-off-by: Tapio Reijonen Link: https://patch.msgid.link/20260910-mpq4210-regulator-v1-2-d37e208dfc8d@vaisala.com Signed-off-by: Mark Brown

regulator: Add regulator driver for Unisoc SC2730 PMIC

2026-07-03T12:27:19+00:00

Add a regulator driver for the Spreadtrum/Unisoc SC2730 PMIC, used e.g. with the UMS512 and UMS9230 SoCs. This version of the driver is based on a downstream driver provided by Unisoc [1][2] and the existing SC2731 driver. [1]: https://github.com/MotorolaMobilityLLC/kernel-sprd/commit/30be0ddfe6b9a877fc9c328fbd2bae84e645eb31 [2]: https://github.com/MotorolaMobilityLLC/kernel-sprd/blob/android-13-release-tla33/drivers/regulator/sc2730-regulator.c Signed-off-by: Zhongfa Wang [cleanup, adapt to new device tree requirements] Signed-off-by: Otto Pflüger Link: https://patch.msgid.link/20260701-sc2730-regulators-v7-2-6e145ce83657@abscue.de Signed-off-by: Mark Brown

regulator: remove used pcap regulator driver

2026-05-28T14:52:44+00:00

The platform was removed a few years ago, and the mfd driver is also gone now, so it is impossible to build or use it. Signed-off-by: Arnd Bergmann Link: https://patch.msgid.link/20260527193837.3436148-1-arnd@kernel.org Signed-off-by: Mark Brown

regulator: add SGM3804 Dual Output driver

2026-05-24T22:35:38+00:00

Add support for the SG Micro SGM3804 Single Inductor Dual Output Buck/Boost Converter used to power LCD panels a provide positive and negative power rails with configurable voltage and active discharge function for each output. The SGM3804 is powered by the enable GPIO pins inputs and only supports I2C write messages. In order to add flexibility and simplify the driver, the regmap cache is enabled and populated with default values since we can't write registers when the 2 GPIOs are down. Signed-off-by: KancyJoe Signed-off-by: Neil Armstrong Link: https://patch.msgid.link/20260522-topic-sm8650-ayaneo-pocket-s2-sgm3804-v5-2-bd6b1c300ecc@linaro.org Signed-off-by: Mark Brown

regulator: Add TPS65185

2026-01-13T12:07:09+00:00

Merge series from Andreas Kemnade : Add a driver for the TPS65185 regulator which provides the comparatively high voltages needed for electronic paper displays. Datasheet for the TPS65185 is at https://www.ti.com/lit/gpn/tps65185 To simplify things, include the hwmon part directly which is only one temperature sensor and there are no other functions besides regulators in this chip.

regulator: Add TPS65185 driver

2026-01-12T12:28:20+00:00

Add a driver for the TPS65185 regulator. Implement handling of the various gpio pins. Because the PWRUP (=enable) pin functionality can be achieved by just using two bits instead, just ensure that it is set to a stable value. Implement the pair of symmetric LDOs as a single regulator because they share a single voltage set register. As the VCOM regulator sits behind that machinery, just define that one as a supply. For simplicity, just add the temperature sensor (depending on external NTC) directly. There is a mechanism to measure some kick-back voltage during a defined EPD operation, to calibrate the VCOM voltage setting and store that non-volatile in the chip to be the power up default setup. That is not implemented yet in the driver, but that also means that there is a non-factory default value in these registers after power-up. Tested-by: Josua Mayer Signed-off-by: Andreas Kemnade Link: https://patch.msgid.link/20260102-tps65185-submit-v3-2-23bda35772f2@kemnade.info Signed-off-by: Mark Brown

Add Richtek RT8092 support

2025-12-22T09:12:28+00:00

Merge series from cy_huang@richtek.com: This patch series add rt8092 regulator support.

regulator: Add rt8092 support

2025-12-19T08:32:06+00:00

RT8092 is a 3MHz 4A efficiency step-down converter with I2C control interface. It can support wide output range from 0.7 to 5.5V, based on the voltage bank selection. Signed-off-by: ChiYuan Huang Link: https://patch.msgid.link/d2293c513f396f86e54f9b806fd0195b57db7aae.1766125676.git.cy_huang@richtek.com Signed-off-by: Mark Brown

regulator: max77675: Add MAX77675 regulator driver

2025-12-14T10:37:48+00:00

Add support for the Maxim Integrated MAX77675 PMIC regulator. The MAX77675 is a compact, highly efficient SIMO (Single Inductor Multiple Output) power management IC that provides four programmable buck-boost switching regulators with only one inductor. It supports up to 700mA total output current and operates from a single-cell Li-ion battery. An integrated power-up sequencer and I2C interface allow flexible startup configuration and runtime control. Signed-off-by: Joan Na Link: https://patch.msgid.link/20251207032907.4850-3-joan.na@analog.com Signed-off-by: Mark Brown

regulator: Use container_of_const() when all types are

2025-11-26T21:21:57+00:00

Merge series from Krzysztof Kozlowski : Use container_of_const(), which is preferred over container_of(), when the argument 'ptr' and returned pointer are already const, for better code safety and readability. Some drivers already have const everywhere, so container_of_const can be directly used. In few other drivers, the final pointer can be constified that way.