forked from Minki/linux
34abbd68ef
In order to ease transitions with drivers are boards start using regulators provide an option to cause all regulator_get() calls to succeed, with a dummy always on regulator being supplied where one has not been configured. A warning is printed whenever the dummy regulator is used to aid system development. This regulator does not implement any regulator operations but will allow simple consumers which only do enable() and disable() calls to run. It is kept separate from the fixed voltage regulator to avoid Kconfig confusion on the part of users when it is extended to allow boards to explicitly use the dummy regulator to simplify cases where the majority of supplies are from fixed regulators without software control. This option is currently only effective for systems which do not specify full constriants. If required an override could also be provided to allow these systems to use the dummy regulator, though it is likely that unconfigured supplies on such systems will lead to error due to regulators being powered down more aggressively when not in use. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
200 lines
6.2 KiB
Plaintext
200 lines
6.2 KiB
Plaintext
menuconfig REGULATOR
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bool "Voltage and Current Regulator Support"
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help
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Generic Voltage and Current Regulator support.
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This framework is designed to provide a generic interface to voltage
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and current regulators within the Linux kernel. It's intended to
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provide voltage and current control to client or consumer drivers and
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also provide status information to user space applications through a
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sysfs interface.
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The intention is to allow systems to dynamically control regulator
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output in order to save power and prolong battery life. This applies
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to both voltage regulators (where voltage output is controllable) and
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current sinks (where current output is controllable).
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This framework safely compiles out if not selected so that client
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drivers can still be used in systems with no software controllable
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regulators.
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If unsure, say no.
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if REGULATOR
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config REGULATOR_DEBUG
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bool "Regulator debug support"
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help
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Say yes here to enable debugging support.
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config REGULATOR_DUMMY
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bool "Provide a dummy regulator if regulator lookups fail"
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help
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If this option is enabled then when a regulator lookup fails
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and the board has not specified that it has provided full
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constraints then the regulator core will provide an always
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enabled dummy regulator will be provided, allowing consumer
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drivers to continue.
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A warning will be generated when this substitution is done.
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config REGULATOR_FIXED_VOLTAGE
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tristate "Fixed voltage regulator support"
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help
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This driver provides support for fixed voltage regulators,
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useful for systems which use a combination of software
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managed regulators and simple non-configurable regulators.
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config REGULATOR_VIRTUAL_CONSUMER
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tristate "Virtual regulator consumer support"
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help
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This driver provides a virtual consumer for the voltage and
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current regulator API which provides sysfs controls for
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configuring the supplies requested. This is mainly useful
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for test purposes.
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If unsure, say no.
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config REGULATOR_USERSPACE_CONSUMER
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tristate "Userspace regulator consumer support"
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help
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There are some classes of devices that are controlled entirely
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from user space. Userspace consumer driver provides ability to
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control power supplies for such devices.
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If unsure, say no.
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config REGULATOR_BQ24022
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tristate "TI bq24022 Dual Input 1-Cell Li-Ion Charger IC"
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help
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This driver controls a TI bq24022 Charger attached via
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GPIOs. The provided current regulator can enable/disable
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charging select between 100 mA and 500 mA charging current
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limit.
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config REGULATOR_MAX1586
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tristate "Maxim 1586/1587 voltage regulator"
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depends on I2C
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help
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This driver controls a Maxim 1586 or 1587 voltage output
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regulator via I2C bus. The provided regulator is suitable
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for PXA27x chips to control VCC_CORE and VCC_USIM voltages.
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config REGULATOR_MAX8649
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tristate "Maxim 8649 voltage regulator"
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depends on I2C
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help
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This driver controls a Maxim 8649 voltage output regulator via
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I2C bus.
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config REGULATOR_MAX8660
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tristate "Maxim 8660/8661 voltage regulator"
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depends on I2C
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help
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This driver controls a Maxim 8660/8661 voltage output
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regulator via I2C bus.
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config REGULATOR_TWL4030
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bool "TI TWL4030/TWL5030/TWL6030/TPS695x0 PMIC"
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depends on TWL4030_CORE
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help
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This driver supports the voltage regulators provided by
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this family of companion chips.
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config REGULATOR_WM831X
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tristate "Wolfson Microelcronics WM831x PMIC regulators"
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depends on MFD_WM831X
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help
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Support the voltage and current regulators of the WM831x series
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of PMIC devices.
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config REGULATOR_WM8350
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tristate "Wolfson Microelectronics WM8350 AudioPlus PMIC"
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depends on MFD_WM8350
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help
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This driver provides support for the voltage and current regulators
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of the WM8350 AudioPlus PMIC.
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config REGULATOR_WM8400
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tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC"
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depends on MFD_WM8400
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help
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This driver provides support for the voltage regulators of the
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WM8400 AudioPlus PMIC.
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config REGULATOR_WM8994
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tristate "Wolfson Microelectronics WM8994 CODEC"
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depends on MFD_WM8994
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help
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This driver provides support for the voltage regulators on the
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WM8994 CODEC.
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config REGULATOR_DA903X
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tristate "Support regulators on Dialog Semiconductor DA9030/DA9034 PMIC"
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depends on PMIC_DA903X
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help
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Say y here to support the BUCKs and LDOs regulators found on
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Dialog Semiconductor DA9030/DA9034 PMIC.
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config REGULATOR_PCF50633
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tristate "PCF50633 regulator driver"
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depends on MFD_PCF50633
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help
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Say Y here to support the voltage regulators and convertors
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on PCF50633
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config REGULATOR_LP3971
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tristate "National Semiconductors LP3971 PMIC regulator driver"
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depends on I2C
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help
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Say Y here to support the voltage regulators and convertors
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on National Semiconductors LP3971 PMIC
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config REGULATOR_PCAP
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tristate "PCAP2 regulator driver"
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depends on EZX_PCAP
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help
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This driver provides support for the voltage regulators of the
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PCAP2 PMIC.
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config REGULATOR_MC13783
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tristate "Support regulators on Freescale MC13783 PMIC"
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depends on MFD_MC13783
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help
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Say y here to support the regulators found on the Freescale MC13783
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PMIC.
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config REGULATOR_AB3100
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tristate "ST-Ericsson AB3100 Regulator functions"
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depends on AB3100_CORE
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default y if AB3100_CORE
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help
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These regulators correspond to functionality in the
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AB3100 analog baseband dealing with power regulators
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for the system.
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config REGULATOR_TPS65023
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tristate "TI TPS65023 Power regulators"
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depends on I2C
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help
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This driver supports TPS65023 voltage regulator chips. TPS65023 provides
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three step-down converters and two general-purpose LDO voltage regulators.
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It supports TI's software based Class-2 SmartReflex implementation.
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config REGULATOR_TPS6507X
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tristate "TI TPS6507X Power regulators"
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depends on I2C
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help
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This driver supports TPS6507X voltage regulator chips. TPS6507X provides
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three step-down converters and two general-purpose LDO voltage regulators.
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It supports TI's software based Class-2 SmartReflex implementation.
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config REGULATOR_88PM8607
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bool "Marvell 88PM8607 Power regulators"
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depends on MFD_88PM8607=y
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help
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This driver supports 88PM8607 voltage regulator chips.
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endif
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