3f0292ae8b
This patch adds support for regulators that can be controlled via gpios.
Examples for such regulators are the TI-tps65024x voltage regulators
with 4 fixed and 1 runtime-switchable voltage regulators
or the TI-bq240XX charger regulators.
The number of controlling gpios is not limited, the mapping between
voltage/current and target gpio state is done via the states map
and the driver can be used for either voltage or current regulators.
A mapping for a regulator with two GPIOs could look like:
gpios = {
{ .gpio = GPIO1, .flags = GPIOF_OUT_INIT_HIGH, .label = "gpio name 1" },
{ .gpio = GPIO2, .flags = GPIOF_OUT_INIT_LOW, .label = "gpio name 2" },
}
The flags element of the gpios array determines the initial state of
the gpio, set during probe. The initial state of the regulator is also
calculated from these values
states = {
{ .value = volt_or_cur1, .gpios = (0 << 1) | (0 << 0) },
{ .value = volt_or_cur2, .gpios = (0 << 1) | (1 << 0) },
{ .value = volt_or_cur3, .gpios = (1 << 1) | (0 << 0) },
{ .value = volt_or_cur4, .gpios = (1 << 1) | (1 << 0) },
}
The target-state for the n-th gpio is determined by the n-th bit
in the bitfield of the target-value.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
331 lines
10 KiB
Plaintext
331 lines
10 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_GPIO
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tristate "GPIO regulator support"
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help
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This driver provides support for regulators that can be
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controlled via gpios.
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It is capable of supporting current and voltage regulators
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and the platform has to provide a mapping of GPIO-states
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to target volts/amps.
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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_MAX8925
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tristate "Maxim MAX8925 Power Management IC"
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depends on MFD_MAX8925
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help
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Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC.
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config REGULATOR_MAX8952
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tristate "Maxim MAX8952 Power Management IC"
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depends on I2C
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help
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This driver controls a Maxim 8952 voltage output regulator
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via I2C bus. Maxim 8952 has one voltage output and supports 4 DVS
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modes ranging from 0.77V to 1.40V by 0.01V steps.
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config REGULATOR_MAX8997
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tristate "Maxim 8997/8966 regulator"
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depends on MFD_MAX8997
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help
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This driver controls a Maxim 8997/8966 regulator
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via I2C bus. The provided regulator is suitable for S5PC110,
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S5PV210, and Exynos-4 chips to control VCC_CORE and
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VCC_USIM voltages.
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config REGULATOR_MAX8998
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tristate "Maxim 8998 voltage regulator"
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depends on MFD_MAX8998
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help
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This driver controls a Maxim 8998 voltage output regulator
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via I2C bus. The provided regulator is suitable for S3C6410
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and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
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config REGULATOR_TWL4030
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bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 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_LP3972
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tristate "National Semiconductors LP3972 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 LP3972 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_MC13XXX_CORE
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tristate
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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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select REGULATOR_MC13XXX_CORE
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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_MC13892
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tristate "Support regulators on Freescale MC13892 PMIC"
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depends on MFD_MC13XXX
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select REGULATOR_MC13XXX_CORE
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help
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Say y here to support the regulators found on the Freescale MC13892
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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_TPS6105X
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tristate "TI TPS6105X Power regulators"
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depends on TPS6105X
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default y if TPS6105X
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help
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This driver supports TPS61050/TPS61052 voltage regulator chips.
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It is a single boost converter primarily for white LEDs and
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audio amplifiers.
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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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select REGMAP_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_TPS65912
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tristate "TI TPS65912 Power regulator"
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depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
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help
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This driver supports TPS65912 voltage regulator chip.
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config REGULATOR_88PM8607
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bool "Marvell 88PM8607 Power regulators"
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depends on MFD_88PM860X=y
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help
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This driver supports 88PM8607 voltage regulator chips.
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config REGULATOR_ISL6271A
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tristate "Intersil ISL6271A Power regulator"
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depends on I2C
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help
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This driver supports ISL6271A voltage regulator chip.
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config REGULATOR_AD5398
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tristate "Analog Devices AD5398/AD5821 regulators"
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depends on I2C
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help
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This driver supports AD5398 and AD5821 current regulator chips.
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If building into module, its name is ad5398.ko.
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config REGULATOR_AB8500
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bool "ST-Ericsson AB8500 Power Regulators"
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depends on AB8500_CORE
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help
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This driver supports the regulators found on the ST-Ericsson mixed
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signal AB8500 PMIC
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config REGULATOR_DB8500_PRCMU
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bool "ST-Ericsson DB8500 Voltage Domain Regulators"
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depends on MFD_DB8500_PRCMU
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help
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This driver supports the voltage domain regulators controlled by the
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DB8500 PRCMU
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config REGULATOR_TPS6586X
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tristate "TI TPS6586X Power regulators"
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depends on MFD_TPS6586X
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help
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This driver supports TPS6586X voltage regulator chips.
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config REGULATOR_TPS6524X
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tristate "TI TPS6524X Power regulators"
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depends on SPI
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help
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This driver supports TPS6524X voltage regulator chips. TPS6524X
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provides three step-down converters and two general-purpose LDO
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voltage regulators. This device is interfaced using a customized
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serial interface currently supported on the sequencer serial
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port controller.
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config REGULATOR_TPS65910
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tristate "TI TPS65910 Power Regulator"
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depends on MFD_TPS65910
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help
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This driver supports TPS65910 voltage regulator chips.
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config REGULATOR_AAT2870
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tristate "AnalogicTech AAT2870 Regulators"
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depends on MFD_AAT2870_CORE
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help
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If you have a AnalogicTech AAT2870 say Y to enable the
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regulator driver.
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endif
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