menuconfig REGULATOR bool "Voltage and Current Regulator Support" help Generic Voltage and Current Regulator support. This framework is designed to provide a generic interface to voltage and current regulators within the Linux kernel. It's intended to provide voltage and current control to client or consumer drivers and also provide status information to user space applications through a sysfs interface. The intention is to allow systems to dynamically control regulator output in order to save power and prolong battery life. This applies to both voltage regulators (where voltage output is controllable) and current sinks (where current output is controllable). This framework safely compiles out if not selected so that client drivers can still be used in systems with no software controllable regulators. If unsure, say no. if REGULATOR config REGULATOR_DEBUG bool "Regulator debug support" help Say yes here to enable debugging support. config REGULATOR_FIXED_VOLTAGE tristate "Fixed voltage regulator support" help This driver provides support for fixed voltage regulators, useful for systems which use a combination of software managed regulators and simple non-configurable regulators. config REGULATOR_VIRTUAL_CONSUMER tristate "Virtual regulator consumer support" help This driver provides a virtual consumer for the voltage and current regulator API which provides sysfs controls for configuring the supplies requested. This is mainly useful for test purposes. If unsure, say no. config REGULATOR_USERSPACE_CONSUMER tristate "Userspace regulator consumer support" help There are some classes of devices that are controlled entirely from user space. Userspace consumer driver provides ability to control power supplies for such devices. If unsure, say no. config REGULATOR_PROXY_CONSUMER bool "Boot time regulator proxy consumer support" help This driver provides support for boot time regulator proxy requests. It can enforce a specified voltage range, set a minimum current, and/or keep a regulator enabled. It is needed in circumstances where reducing one or more of these three quantities will cause hardware to stop working if performed before the driver managing the hardware has probed. config REGULATOR_88PM800 tristate "Marvell 88PM800 Power regulators" depends on MFD_88PM800 help This driver supports Marvell 88PM800 voltage regulator chips. It delivers digitally programmable output, the voltage is programmed via I2C interface. It's suitable to support PXA988 chips to control VCC_MAIN and various voltages. config REGULATOR_88PM8607 tristate "Marvell 88PM8607 Power regulators" depends on MFD_88PM860X=y help This driver supports 88PM8607 voltage regulator chips. config REGULATOR_ACT8865 tristate "Active-semi act8865 voltage regulator" depends on I2C select REGMAP_I2C help This driver controls a active-semi act8865 voltage output regulator via I2C bus. config REGULATOR_AD5398 tristate "Analog Devices AD5398/AD5821 regulators" depends on I2C help This driver supports AD5398 and AD5821 current regulator chips. If building into module, its name is ad5398.ko. config REGULATOR_ANATOP tristate "Freescale i.MX on-chip ANATOP LDO regulators" depends on MFD_SYSCON help Say y here to support Freescale i.MX on-chip ANATOP LDOs regulators. It is recommended that this option be enabled on i.MX6 platform. config REGULATOR_AAT2870 tristate "AnalogicTech AAT2870 Regulators" depends on MFD_AAT2870_CORE help If you have a AnalogicTech AAT2870 say Y to enable the regulator driver. config REGULATOR_AB3100 tristate "ST-Ericsson AB3100 Regulator functions" depends on AB3100_CORE default y if AB3100_CORE help These regulators correspond to functionality in the AB3100 analog baseband dealing with power regulators for the system. config REGULATOR_AB8500 bool "ST-Ericsson AB8500 Power Regulators" depends on AB8500_CORE help This driver supports the regulators found on the ST-Ericsson mixed signal AB8500 PMIC config REGULATOR_ARIZONA tristate "Wolfson Arizona class devices" depends on MFD_ARIZONA depends on SND_SOC help Support for the regulators found on Wolfson Arizona class devices. config REGULATOR_AS3711 tristate "AS3711 PMIC" depends on MFD_AS3711 help This driver provides support for the voltage regulators on the AS3711 PMIC config REGULATOR_STUB tristate "Stub Regulator" help This driver adds stub regulator support. The driver is absent of any real hardware based implementation. It allows for clients to register their regulator device constraints and use all of the standard regulator interfaces. This is useful for bringing up new platforms when the real hardware based implementation may not be yet available. Clients can use the real regulator device names with proper constraint checking while the real driver is being developed. config REGULATOR_AS3722 tristate "AMS AS3722 PMIC Regulators" depends on MFD_AS3722 help This driver provides support for the voltage regulators on the AS3722 PMIC. This will enable support for all the software controllable DCDC/LDO regulators. config REGULATOR_AXP20X tristate "X-POWERS AXP20X PMIC Regulators" depends on MFD_AXP20X help This driver provides support for the voltage regulators on the AXP20X PMIC. config REGULATOR_BCM590XX tristate "Broadcom BCM590xx PMU Regulators" depends on MFD_BCM590XX help This driver provides support for the voltage regulators on the BCM590xx PMUs. This will enable support for the software controllable LDO/Switching regulators. config REGULATOR_DA903X tristate "Dialog Semiconductor DA9030/DA9034 regulators" depends on PMIC_DA903X help Say y here to support the BUCKs and LDOs regulators found on Dialog Semiconductor DA9030/DA9034 PMIC. config REGULATOR_DA9052 tristate "Dialog Semiconductor DA9052/DA9053 regulators" depends on PMIC_DA9052 help This driver supports the voltage regulators of DA9052-BC and DA9053-AA/Bx PMIC. config REGULATOR_DA9055 tristate "Dialog Semiconductor DA9055 regulators" depends on MFD_DA9055 help Say y here to support the BUCKs and LDOs regulators found on Dialog Semiconductor DA9055 PMIC. This driver can also be built as a module. If so, the module will be called da9055-regulator. config REGULATOR_DA9063 tristate "Dialog Semiconductor DA9063 regulators" depends on MFD_DA9063 help Say y here to support the BUCKs and LDOs regulators found on DA9063 PMICs. This driver can also be built as a module. If so, the module will be called da9063-regulator. config REGULATOR_DA9210 tristate "Dialog Semiconductor DA9210 regulator" depends on I2C select REGMAP_I2C help Say y here to support for the Dialog Semiconductor DA9210. The DA9210 is a multi-phase synchronous step down converter 12A DC-DC Buck controlled through an I2C interface. config REGULATOR_DA9211 tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214 regulator" depends on I2C select REGMAP_I2C help Say y here to support for the Dialog Semiconductor DA9211/DA9212 /DA9213/DA9214. The DA9211/DA9212/DA9213/DA9214 is a multi-phase synchronous step down converter 12A or 16A DC-DC Buck controlled through an I2C interface. config REGULATOR_DBX500_PRCMU bool config REGULATOR_DB8500_PRCMU bool "ST-Ericsson DB8500 Voltage Domain Regulators" depends on MFD_DB8500_PRCMU select REGULATOR_DBX500_PRCMU help This driver supports the voltage domain regulators controlled by the DB8500 PRCMU config REGULATOR_FAN53555 tristate "Fairchild FAN53555 Regulator" depends on I2C select REGMAP_I2C help This driver supports Fairchild FAN53555 Digitally Programmable TinyBuck Regulator. The FAN53555 is a step-down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of 2.5V to 5.5V. The output voltage is programmed through an I2C interface. config REGULATOR_MSM_GFX_LDO tristate "MSM GFX LDO Regulator" depends on OF help This driver supports the MSM GFX (Graphics) LDO regulator. The GFU core is either powered by an internal MSM LDO or by BHS. Typically the lower voltage corners are powered by LDO and the higher ones by BHS. This driver allows for configuration of the rail between the LDO/BHS as well as the LDO voltage. config REGULATOR_GPIO tristate "GPIO regulator support" depends on GPIOLIB help This driver provides support for regulators that can be controlled via gpios. It is capable of supporting current and voltage regulators and the platform has to provide a mapping of GPIO-states to target volts/amps. config REGULATOR_HI6421 tristate "HiSilicon Hi6421 PMIC voltage regulator support" depends on MFD_HI6421_PMIC && OF help This driver provides support for the voltage regulators on the HiSilicon Hi6421 PMU / Codec IC. Hi6421 is a multi-function device which, on regulator part, provides 21 general purpose LDOs, 3 dedicated LDOs, and 5 BUCKs. All of them come with support to either ECO (idle) or sleep mode. config REGULATOR_ISL9305 tristate "Intersil ISL9305 regulator" depends on I2C select REGMAP_I2C help This driver supports ISL9305 voltage regulator chip. config REGULATOR_MEM_ACC tristate "QTI Memory accelerator regulator driver" help Say y here to enable the memory accelerator driver for Qualcomm Technologies (QTI) chips. The accelerator controls delays applied for memory accesses. This driver configures the power-mode (corner) for the memory accelerator. config REGULATOR_ISL6271A tristate "Intersil ISL6271A Power regulator" depends on I2C help This driver supports ISL6271A voltage regulator chip. config REGULATOR_LP3971 tristate "National Semiconductors LP3971 PMIC regulator driver" depends on I2C help Say Y here to support the voltage regulators and convertors on National Semiconductors LP3971 PMIC config REGULATOR_LP3972 tristate "National Semiconductors LP3972 PMIC regulator driver" depends on I2C help Say Y here to support the voltage regulators and convertors on National Semiconductors LP3972 PMIC config REGULATOR_LP872X tristate "TI/National Semiconductor LP8720/LP8725 voltage regulators" depends on I2C select REGMAP_I2C help This driver supports LP8720/LP8725 PMIC config REGULATOR_LP8755 tristate "TI LP8755 High Performance PMU driver" depends on I2C select REGMAP_I2C help This driver supports LP8755 High Performance PMU driver. This chip contains six step-down DC/DC converters which can support 9 mode multiphase configuration. config REGULATOR_LP8788 tristate "TI LP8788 Power Regulators" depends on MFD_LP8788 help This driver supports LP8788 voltage regulator chip. config REGULATOR_LTC3589 tristate "LTC3589 8-output voltage regulator" depends on I2C select REGMAP_I2C help This enables support for the LTC3589, LTC3589-1, and LTC3589-2 8-output regulators controlled via I2C. config REGULATOR_MAX14577 tristate "Maxim 14577/77836 regulator" depends on MFD_MAX14577 help This driver controls a Maxim MAX14577/77836 regulator via I2C bus. The MAX14577 regulators include safeout LDO and charger current regulator. The MAX77836 has two additional LDOs. config REGULATOR_MAX1586 tristate "Maxim 1586/1587 voltage regulator" depends on I2C help This driver controls a Maxim 1586 or 1587 voltage output regulator via I2C bus. The provided regulator is suitable for PXA27x chips to control VCC_CORE and VCC_USIM voltages. config REGULATOR_MAX8649 tristate "Maxim 8649 voltage regulator" depends on I2C select REGMAP_I2C help This driver controls a Maxim 8649 voltage output regulator via I2C bus. config REGULATOR_MAX8660 tristate "Maxim 8660/8661 voltage regulator" depends on I2C help This driver controls a Maxim 8660/8661 voltage output regulator via I2C bus. config REGULATOR_MAX8907 tristate "Maxim 8907 voltage regulator" depends on MFD_MAX8907 help This driver controls a Maxim 8907 voltage output regulator via I2C bus. The provided regulator is suitable for Tegra chip to control Step-Down DC-DC and LDOs. config REGULATOR_MAX8925 tristate "Maxim MAX8925 Power Management IC" depends on MFD_MAX8925 help Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC. config REGULATOR_MAX8952 tristate "Maxim MAX8952 Power Management IC" depends on I2C help This driver controls a Maxim 8952 voltage output regulator via I2C bus. Maxim 8952 has one voltage output and supports 4 DVS modes ranging from 0.77V to 1.40V by 0.01V steps. config REGULATOR_MAX8973 tristate "Maxim MAX8973 voltage regulator " depends on I2C select REGMAP_I2C help The MAXIM MAX8973 high-efficiency. three phase, DC-DC step-down switching regulator delievers up to 9A of output current. Each phase operates at a 2MHz fixed frequency with a 120 deg shift from the adjacent phase, allowing the use of small magnetic component. config REGULATOR_MAX8997 tristate "Maxim 8997/8966 regulator" depends on MFD_MAX8997 help This driver controls a Maxim 8997/8966 regulator via I2C bus. The provided regulator is suitable for S5PC110, S5PV210, and Exynos-4 chips to control VCC_CORE and VCC_USIM voltages. config REGULATOR_MAX8998 tristate "Maxim 8998 voltage regulator" depends on MFD_MAX8998 help This driver controls a Maxim 8998 voltage output regulator via I2C bus. The provided regulator is suitable for S3C6410 and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages. config REGULATOR_MAX77686 tristate "Maxim 77686 regulator" depends on MFD_MAX77686 help This driver controls a Maxim 77686 regulator via I2C bus. The provided regulator is suitable for Exynos-4 chips to control VARM and VINT voltages. config REGULATOR_MAX77693 tristate "Maxim MAX77693 regulator" depends on MFD_MAX77693 help This driver controls a Maxim 77693 regulator via I2C bus. The regulators include two LDOs, 'SAFEOUT1', 'SAFEOUT2' and one current regulator 'CHARGER'. This is suitable for Exynos-4x12 chips. config REGULATOR_MAX77802 tristate "Maxim 77802 regulator" depends on MFD_MAX77686 help This driver controls a Maxim 77802 regulator via I2C bus. The provided regulator is suitable for Exynos5420/Exynos5800 SoCs to control various voltages. It includes support for control of voltage and ramp speed. config REGULATOR_MC13XXX_CORE tristate config REGULATOR_MC13783 tristate "Freescale MC13783 regulator driver" depends on MFD_MC13XXX select REGULATOR_MC13XXX_CORE help Say y here to support the regulators found on the Freescale MC13783 PMIC. config REGULATOR_MC13892 tristate "Freescale MC13892 regulator driver" depends on MFD_MC13XXX select REGULATOR_MC13XXX_CORE help Say y here to support the regulators found on the Freescale MC13892 PMIC. config REGULATOR_PALMAS tristate "TI Palmas PMIC Regulators" depends on MFD_PALMAS help If you wish to control the regulators on the Palmas series of chips say Y here. This will enable support for all the software controllable SMPS/LDO regulators. The regulators available on Palmas series chips vary depending on the muxing. This is handled automatically in the driver by reading the mux info from OTP. config REGULATOR_PBIAS tristate "PBIAS OMAP regulator driver" depends on (ARCH_OMAP || COMPILE_TEST) && MFD_SYSCON help Say y here to support pbias regulator for mmc1:SD card i/o on OMAP SoCs. This driver provides support for OMAP pbias modelled regulators. config REGULATOR_PCAP tristate "Motorola PCAP2 regulator driver" depends on EZX_PCAP help This driver provides support for the voltage regulators of the PCAP2 PMIC. config REGULATOR_PCF50633 tristate "NXP PCF50633 regulator driver" depends on MFD_PCF50633 help Say Y here to support the voltage regulators and convertors on PCF50633 config REGULATOR_PFUZE100 tristate "Freescale PFUZE100/PFUZE200 regulator driver" depends on I2C select REGMAP_I2C help Say y here to support the regulators found on the Freescale PFUZE100/PFUZE200 PMIC. config REGULATOR_PWM tristate "PWM voltage regulator" depends on PWM help This driver supports PWM controlled voltage regulators. PWM duty cycle can increase or decrease the voltage. config REGULATOR_QCOM_RPM tristate "Qualcomm RPM regulator driver" depends on MFD_QCOM_RPM help If you say yes to this option, support will be included for the regulators exposed by the Resource Power Manager found in Qualcomm 8660, 8960 and 8064 based devices. Say M here if you want to include support for the regulators on the Qualcomm RPM as a module. The module will be named "qcom_rpm-regulator". config REGULATOR_RC5T583 tristate "RICOH RC5T583 Power regulators" depends on MFD_RC5T583 help Select this option to enable the power regulator of RICOH PMIC RC5T583. This driver supports the control of different power rails of device through regulator interface. The device supports multiple DCDC/LDO outputs which can be controlled by i2c communication. config REGULATOR_RK808 tristate "Rockchip RK808 Power regulators" depends on MFD_RK808 help Select this option to enable the power regulator of ROCKCHIP PMIC RK808. This driver supports the control of different power rails of device through regulator interface. The device supports multiple DCDC/LDO outputs which can be controlled by i2c communication. config REGULATOR_RN5T618 tristate "Ricoh RN5T618 voltage regulators" depends on MFD_RN5T618 help Say y here to support the regulators found on Ricoh RN5T618 PMIC. config REGULATOR_S2MPA01 tristate "Samsung S2MPA01 voltage regulator" depends on MFD_SEC_CORE help This driver controls Samsung S2MPA01 voltage output regulator via I2C bus. S2MPA01 has 10 Bucks and 26 LDO outputs. config REGULATOR_S2MPS11 tristate "Samsung S2MPS11/S2MPS14/S2MPU02 voltage regulator" depends on MFD_SEC_CORE help This driver supports a Samsung S2MPS11/S2MPS14/S2MPU02 voltage output regulator via I2C bus. The chip is comprised of high efficient Buck converters including Dual-Phase Buck converter, Buck-Boost converter, various LDOs. config REGULATOR_S5M8767 tristate "Samsung S5M8767A voltage regulator" depends on MFD_SEC_CORE help This driver supports a Samsung S5M8767A voltage output regulator via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and supports DVS mode with 8bits of output voltage control. config REGULATOR_SKY81452 tristate "Skyworks Solutions SKY81452 voltage regulator" depends on SKY81452 help This driver supports Skyworks SKY81452 voltage output regulator via I2C bus. SKY81452 has one voltage linear regulator can be programmed from 4.5V to 20V. This driver can also be built as a module. If so, the module will be called sky81452-regulator. config REGULATOR_TI_ABB tristate "TI Adaptive Body Bias on-chip LDO" depends on ARCH_OMAP help Select this option to support Texas Instruments' on-chip Adaptive Body Bias (ABB) LDO regulators. It is recommended that this option be enabled on required TI SoC. Certain Operating Performance Points on TI SoCs may be unstable without enabling this as it provides device specific optimized bias to allow/optimize functionality. config REGULATOR_STW481X_VMMC bool "ST Microelectronics STW481X VMMC regulator" depends on MFD_STW481X default y if MFD_STW481X help This driver supports the internal VMMC regulator in the STw481x PMIC chips. config REGULATOR_TPS51632 tristate "TI TPS51632 Power Regulator" depends on I2C select REGMAP_I2C help This driver supports TPS51632 voltage regulator chip. The TPS51632 is 3-2-1 Phase D-Cap+ Step Down Driverless Controller with Serial VID control and DVFS. The voltage output can be configure through I2C interface or PWM interface. config REGULATOR_TPS6105X tristate "TI TPS6105X Power regulators" depends on TPS6105X default y if TPS6105X help This driver supports TPS61050/TPS61052 voltage regulator chips. It is a single boost converter primarily for white LEDs and audio amplifiers. config REGULATOR_TPS62360 tristate "TI TPS6236x Power Regulator" depends on I2C select REGMAP_I2C help This driver supports TPS6236x voltage regulator chip. This regulator is meant for processor core supply. This chip is high-frequency synchronous step down dc-dc converter optimized for battery-powered portable applications. config REGULATOR_TPS65023 tristate "TI TPS65023 Power regulators" depends on I2C select REGMAP_I2C help This driver supports TPS65023 voltage regulator chips. TPS65023 provides three step-down converters and two general-purpose LDO voltage regulators. It supports TI's software based Class-2 SmartReflex implementation. config REGULATOR_TPS6507X tristate "TI TPS6507X Power regulators" depends on I2C help This driver supports TPS6507X voltage regulator chips. TPS6507X provides three step-down converters and two general-purpose LDO voltage regulators. It supports TI's software based Class-2 SmartReflex implementation. config REGULATOR_TPS65090 tristate "TI TPS65090 Power regulator" depends on MFD_TPS65090 help This driver provides support for the voltage regulators on the TI TPS65090 PMIC. config REGULATOR_TPS65217 tristate "TI TPS65217 Power regulators" depends on MFD_TPS65217 help This driver supports TPS65217 voltage regulator chips. TPS65217 provides three step-down converters and four general-purpose LDO voltage regulators. It supports software based voltage control for different voltage domains config REGULATOR_TPS65218 tristate "TI TPS65218 Power regulators" depends on MFD_TPS65218 && OF help This driver supports TPS65218 voltage regulator chips. TPS65218 provides six step-down converters and one general-purpose LDO voltage regulators. It supports software based voltage control for different voltage domains config REGULATOR_TPS6524X tristate "TI TPS6524X Power regulators" depends on SPI help This driver supports TPS6524X voltage regulator chips. TPS6524X provides three step-down converters and two general-purpose LDO voltage regulators. This device is interfaced using a customized serial interface currently supported on the sequencer serial port controller. config REGULATOR_TPS6586X tristate "TI TPS6586X Power regulators" depends on MFD_TPS6586X help This driver supports TPS6586X voltage regulator chips. config REGULATOR_TPS65910 tristate "TI TPS65910/TPS65911 Power Regulators" depends on MFD_TPS65910 help This driver supports TPS65910/TPS65911 voltage regulator chips. config REGULATOR_TPS65912 tristate "TI TPS65912 Power regulator" depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) help This driver supports TPS65912 voltage regulator chip. config REGULATOR_TPS80031 tristate "TI TPS80031/TPS80032 power regualtor driver" depends on MFD_TPS80031 help TPS80031/ TPS80032 Fully Integrated Power Management with Power Path and Battery Charger. It has 5 configurable step-down converters, 11 general purpose LDOs, VBUS generator and digital output to control regulators. config REGULATOR_TWL4030 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC" depends on TWL4030_CORE help This driver supports the voltage regulators provided by this family of companion chips. config REGULATOR_VEXPRESS tristate "Versatile Express regulators" depends on VEXPRESS_CONFIG help This driver provides support for voltage regulators available on the ARM Ltd's Versatile Express platform. config REGULATOR_WM831X tristate "Wolfson Microelectronics WM831x PMIC regulators" depends on MFD_WM831X help Support the voltage and current regulators of the WM831x series of PMIC devices. config REGULATOR_WM8350 tristate "Wolfson Microelectronics WM8350 AudioPlus PMIC" depends on MFD_WM8350 help This driver provides support for the voltage and current regulators of the WM8350 AudioPlus PMIC. config REGULATOR_WM8400 tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC" depends on MFD_WM8400 help This driver provides support for the voltage regulators of the WM8400 AudioPlus PMIC. config REGULATOR_WM8994 tristate "Wolfson Microelectronics WM8994 CODEC" depends on MFD_WM8994 help This driver provides support for the voltage regulators on the WM8994 CODEC. config REGULATOR_RPM_SMD bool "RPM SMD regulator driver" depends on OF depends on MSM_RPM_SMD help Compile in support for the RPM SMD regulator driver which is used for setting voltages and other parameters of the various power rails supplied by some Qualcomm PMICs. The RPM SMD regulator driver should be used on systems which contain an RPM which communicates with the application processor over SMD. config REGULATOR_QPNP depends on SPMI || MSM_SPMI depends on OF_SPMI tristate "Qualcomm QPNP regulator support" help This driver supports voltage regulators in Qualcomm PMIC chips which comply with QPNP. QPNP is a SPMI based PMIC implementation. These chips provide several different varieties of LDO and switching regulators. They also provide voltage switches and boost regulators. config REGULATOR_QPNP_LABIBB depends on SPMI || MSM_SPMI depends on OF_SPMI tristate "Qualcomm Technologies, Inc QPNP LAB/IBB regulator support" help This driver supports voltage regulators in Qualcomm Technologies, Inc PMIC chips which comply with QPNP LAB/IBB regulators. QPNP LAB and IBB are SPMI based PMIC implementation. LAB regulator can be used as a regular positive boost regulator. IBB can be used as a regular negative boost regulator. LAB/IBB regulators can also be used together for LCD or AMOLED. config REGULATOR_SPM bool "SPM regulator driver" depends on (SPMI || MSM_SPMI) && OF_SPMI help Enable support for the SPM regulator driver which is used for setting voltages of processor supply regulators via the SPM module found inside of Qualcomm Technologies (QTI) chips. The SPM regulator driver can be used on QTI SoCs where the APSS processor cores are supplied by their own PMIC regulator. config REGULATOR_CPR bool "RBCPR regulator driver for APC" depends on OF help Compile in RBCPR (RapidBridge Core Power Reduction) driver to support corner vote for APC power rail. The driver takes PTE process voltage suggestions in efuse as initial settings. It converts corner vote to voltage value before writing to a voltage regulator API, such as that provided by spm-regulator driver. config REGULATOR_CPR2_GFX bool "RBCPR regulator driver for GFX" depends on OF help This driver supports the CPR (core power reduction) controller for the graphics (GFX) rail. The GFX CPR2 controller monitors the graphics voltage requirements. This driver reads initial voltage values out of hardware fuses and CPR target quotient values out of device tree. config REGULATOR_CPR3 bool "CPR3 regulator core support" help This driver supports Core Power Reduction (CPR) version 3 controllers which are used by some Qualcomm Technologies, Inc. (QTI) SoCs to manage important voltage regulators. CPR3 controllers are capable of monitoring several ring oscillator sensing loops simultaneously. The CPR3 controller informs software when the silicon conditions require the supply voltage to be increased or decreased. On certain supply rails, the CPR3 controller is able to propagate the voltage increase or decrease requests all the way to the PMIC without software involvement. config REGULATOR_CPR3_HMSS bool "CPR3 regulator for HMSS" depends on OF select REGULATOR_CPR3 help This driver supports Qualcomm Technologies, Inc. HMSS application processor specific features including memory array power mux (APM) switching, two CPR3 threads which monitor the two HMSS clusters that are both powered by a shared supply, and hardware closed-loop auto voltage stepping. This driver reads both initial voltage and CPR target quotient values out of hardware fuses. config REGULATOR_CPR3_MMSS bool "RBCPR3 regulator for MMSS" depends on OF select REGULATOR_CPR3 help This driver supports Qualcomm Technologies, Inc. MMSS graphics processor specific features. The MMSS CPR3 controller only uses one thread to monitor the MMSS voltage requirements. This driver reads initial voltage values out of hardware fuses and CPR target quotient values out of device tree. config REGULATOR_CPR4_APSS bool "CPR4 regulator for APSS" depends on OF select REGULATOR_CPR3 help This driver supports Qualcomm Technologies, Inc. APSS application processor specific features including memory array power mux (APM) switching, one CPR4 thread which monitor the two APSS clusters that are both powered by a shared supply, hardware closed-loop auto voltage stepping, voltage adjustments based on online core count, voltage adjustments based on temperature readings, and voltage adjustments for performance boost mode. This driver reads both initial voltage and CPR target quotient values out of hardware fuses. config REGULATOR_KRYO bool "Kryo regulator driver" depends on OF help Some MSM designs have CPUs that can be directly powered from a common voltage rail via a Block Head Switch (BHS) or an LDO whose output voltage can be configured for use when certain power constraints are met. Say yes to support management of LDO and BHS modes for the clusters in the CPU subsystem. endif