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https://github.com/AsahiLinux/u-boot
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21b02414f1
BD71837 and BD71847 is PMIC intended for powering single-core, dual-core, and quad-core SoC’s such as NXP-i.MX 8M. BD71847 is used for example on NXP imx8mm EVK. Add regulator driver for ROHM BD71837 and BD71847 PMICs. BD71837 contains 8 bucks and 7 LDOS. BD71847 is reduced version containing 6 bucks and 6 LDOs. Voltages for DVS bucks (1-4 on BD71837, 1 and 2 on BD71847) can be adjusted when regulators are enabled. For other bucks and LDOs we may have over- or undershooting if voltage is adjusted when regulator is enabled. Thus this is prevented by default. BD718x7 has a quirk which may leave power output disabled after reset if enable/disable state was controlled by SW. Thus the SW control is only allowed for BD71837 bucks 3 and 4 by default. The impact of this limitation must be evaluated board-by board and restrictions may need to be modified. (Linux driver get's these limitations from DT and we may want to implement same on u-Boot driver). Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Simon Glass <sjg@chromium.org>
315 lines
12 KiB
Text
315 lines
12 KiB
Text
config DM_REGULATOR
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bool "Enable Driver Model for REGULATOR drivers (UCLASS_REGULATOR)"
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depends on DM
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---help---
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This config enables the driver model regulator support.
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UCLASS_REGULATOR - designed to provide a common API for basic regulator's
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functions, like get/set Voltage or Current value, enable state, etc...
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Note:
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When enabling this, please read the description, found in the files:
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- 'include/power/pmic.h'
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- 'include/power/regulator.h'
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- 'drivers/power/pmic/pmic-uclass.c'
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- 'drivers/power/pmic/regulator-uclass.c'
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It's important to call the device_bind() with the proper node offset,
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when binding the regulator devices. The pmic_bind_childs() can be used
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for this purpose if PMIC I/O driver is implemented or dm_scan_fdt_dev()
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otherwise. Detailed information can be found in the header file.
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config SPL_DM_REGULATOR
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bool "Enable regulators for SPL"
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depends on DM_REGULATOR
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---help---
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Regulators are seldom needed in SPL. Even if they are accessed, some
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code space can be saved by accessing the PMIC registers directly.
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Enable this option if you need regulators in SPL and can cope with
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the extra code size.
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config REGULATOR_ACT8846
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bool "Enable driver for ACT8846 regulator"
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depends on DM_REGULATOR && PMIC_ACT8846
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---help---
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Enable support for the regulator functions of the ACT8846 PMIC. The
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driver implements get/set api for the various BUCKS and LDOS supported
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by the PMIC device. This driver is controlled by a device tree node
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which includes voltage limits.
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config REGULATOR_AS3722
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bool "Enable driver for AS7322 regulator"
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depends on DM_REGULATOR && PMIC_AS3722
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help
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Enable support for the regulator functions of the AS3722. The
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driver implements enable/disable for step-down bucks and LDOs,
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but does not yet support change voltages. Currently this must be
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done using direct register writes to the PMIC.
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config DM_REGULATOR_BD71837
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bool "Enable Driver Model for ROHM BD71837/BD71847 regulators"
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depends on DM_REGULATOR && DM_PMIC_BD71837
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help
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This config enables implementation of driver-model regulator uclass
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features for regulators on ROHM BD71837 and BD71847 PMICs.
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BD71837 contains 8 bucks and 7 LDOS. BD71847 is reduced version
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containing 6 bucks and 6 LDOs. The driver implements get/set api for
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value and enable.
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config SPL_DM_REGULATOR_BD71837
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bool "Enable Driver Model for ROHM BD71837/BD71847 regulators in SPL"
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depends on DM_REGULATOR_BD71837
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help
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This config enables implementation of driver-model regulator uclass
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features for regulators on ROHM BD71837 and BD71847 in SPL.
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config DM_REGULATOR_PFUZE100
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bool "Enable Driver Model for REGULATOR PFUZE100"
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depends on DM_REGULATOR && DM_PMIC_PFUZE100
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---help---
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This config enables implementation of driver-model regulator uclass
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features for REGULATOR PFUZE100. The driver implements get/set api for:
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value, enable and mode.
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config REGULATOR_PWM
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bool "Enable driver for PWM regulators"
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depends on DM_REGULATOR
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---help---
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Enable support for the PWM regulator functions which voltage are
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controlled by PWM duty ratio. Some of Rockchip board using this kind
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of regulator. The driver implements get/set api for the various BUCKS.
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This driver is controlled by a device tree node
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which includes voltage limits.
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config SPL_REGULATOR_PWM
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bool "Enable Driver for PWM regulators in SPL"
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depends on REGULATOR_PWM
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help
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This config enables implementation of driver-model regulator uclass
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features for PWM regulators in SPL.
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config DM_REGULATOR_MAX77686
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bool "Enable Driver Model for REGULATOR MAX77686"
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depends on DM_REGULATOR && DM_PMIC_MAX77686
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---help---
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This config enables implementation of driver-model regulator uclass
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features for REGULATOR MAX77686. The driver implements get/set api for:
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value, enable and mode.
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config DM_REGULATOR_FAN53555
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bool "Enable Driver Model for REGULATOR FAN53555"
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depends on DM_PMIC_FAN53555
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help
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This config enables implementation of driver-model regulator
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uclass features for the FAN53555 regulator. The FAN53555 is
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a (family of) single-output regulators that supports
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transitioning between two different output voltages based on
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an voltage selection pin.
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The driver implements a get/set api for the voltage of the
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'normal mode' voltage only. Switching to 'suspend mode'
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(i.e. the alternate voltage), disabling output via software,
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or switching the mode is not supported by this driver (at
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this time).
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config DM_REGULATOR_COMMON
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bool
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depends on DM_REGULATOR
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config SPL_DM_REGULATOR_COMMON
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bool
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depends on DM_REGULATOR
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config DM_REGULATOR_FIXED
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bool "Enable Driver Model for REGULATOR Fixed value"
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depends on DM_REGULATOR
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select DM_REGULATOR_COMMON
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---help---
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This config enables implementation of driver-model regulator uclass
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features for fixed value regulators. The driver implements get/set api
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for enable and get only for voltage value.
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config SPL_DM_REGULATOR_FIXED
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bool "Enable Driver Model for REGULATOR Fixed value in SPL"
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depends on DM_REGULATOR_FIXED
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select SPL_DM_REGULATOR_COMMON
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---help---
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This config enables implementation of driver-model regulator uclass
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features for fixed value regulators in SPL.
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config DM_REGULATOR_GPIO
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bool "Enable Driver Model for GPIO REGULATOR"
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depends on DM_REGULATOR && DM_GPIO
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select DM_REGULATOR_COMMON
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---help---
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This config enables implementation of driver-model regulator uclass
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features for gpio regulators. The driver implements get/set for
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voltage value.
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config SPL_DM_REGULATOR_GPIO
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bool "Enable Driver Model for GPIO REGULATOR in SPL"
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depends on DM_REGULATOR_GPIO && SPL_GPIO_SUPPORT
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select SPL_DM_REGULATOR_COMMON
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---help---
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This config enables implementation of driver-model regulator uclass
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features for gpio regulators in SPL.
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config REGULATOR_RK8XX
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bool "Enable driver for RK8XX regulators"
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depends on DM_REGULATOR && PMIC_RK8XX
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---help---
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Enable support for the regulator functions of the RK8XX PMIC. The
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driver implements get/set api for the various BUCKS and LDOs supported
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by the PMIC device. This driver is controlled by a device tree node
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which includes voltage limits.
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config DM_REGULATOR_S2MPS11
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bool "Enable driver for S2MPS11 regulator"
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depends on DM_REGULATOR && PMIC_S2MPS11
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---help---
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This enables implementation of driver-model regulator uclass
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features for REGULATOR S2MPS11.
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The driver implements get/set api for: value and enable.
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config REGULATOR_S5M8767
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bool "Enable support for S5M8767 regulator"
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depends on DM_REGULATOR && PMIC_S5M8767
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---help---
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This enables the regulator features of the S5M8767, allowing voltages
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to be set, etc. The driver is not fully complete but supports most
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common requirements, including all LDOs and BUCKs. This allows many
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supplies to be set automatically using the device tree values.
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config DM_REGULATOR_SANDBOX
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bool "Enable Driver Model for Sandbox PMIC regulator"
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depends on DM_REGULATOR && DM_PMIC_SANDBOX
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---help---
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Enable the regulator driver for emulated Sandbox PMIC.
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The emulated PMIC device depends on two drivers:
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- sandbox PMIC I/O driver - implements dm pmic operations
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- sandbox PMIC regulator driver - implements dm regulator operations
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- sandbox PMIC i2c emul driver - emulates the PMIC's I2C transmission
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The regulator driver provides uclass operations for sandbox PMIC's
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regulators. The driver implements get/set api for: voltage, current,
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operation mode and enable state.
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The driver supports LDO and BUCK regulators.
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The Sandbox PMIC info:
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* I/O interface:
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- I2C chip address: 0x40
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- first register address: 0x0
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- register count: 0x10
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* Adjustable outputs:
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- 2x LDO
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- 2x BUCK
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- Each, with a different operating conditions (header).
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* Reset values:
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- set by i2c emul driver's probe() (defaults in header)
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A detailed information can be found in header: '<power/sandbox_pmic.h>'
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Binding info: 'doc/device-tree-bindings/pmic/max77686.txt'
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config REGULATOR_TPS65090
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bool "Enable driver for TPS65090 PMIC regulators"
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depends on PMIC_TPS65090
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---help---
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The TPS65090 provides several FETs (Field-effect Transistors,
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effectively switches) which are supported by this driver as
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regulators, one for each FET. The standard regulator interface is
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supported, but it is only possible to turn the regulators on or off.
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There is no voltage/current control.
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config DM_REGULATOR_PALMAS
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bool "Enable driver for PALMAS PMIC regulators"
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depends on PMIC_PALMAS
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---help---
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This enables implementation of driver-model regulator uclass
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features for REGULATOR PALMAS and the family of PALMAS PMICs.
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The driver implements get/set api for: value and enable.
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config DM_REGULATOR_PBIAS
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bool "Enable driver for PBIAS regulator"
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depends on DM_REGULATOR
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select REGMAP
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select SYSCON
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---help---
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This enables implementation of driver-model regulator uclass
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features for pseudo-regulator PBIAS found in the OMAP SOCs.
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This pseudo-regulator is used to provide a BIAS voltage to MMC1
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signal pads and must be configured properly during a voltage switch.
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Voltage switching is required by some operating modes of SDcards and
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eMMC.
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config DM_REGULATOR_LP873X
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bool "Enable driver for LP873X PMIC regulators"
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depends on PMIC_LP873X
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---help---
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This enables implementation of driver-model regulator uclass
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features for REGULATOR LP873X and the family of LP873X PMICs.
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The driver implements get/set api for: value and enable.
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config DM_REGULATOR_LP87565
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bool "Enable driver for LP87565 PMIC regulators"
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depends on PMIC_LP87565
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---help---
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This enables implementation of driver-model regulator uclass
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features for REGULATOR LP87565 and the family of LP87565 PMICs.
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LP87565 series of PMICs have 4 single phase BUCKs that can also
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be configured in multi phase modes. The driver implements
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get/set api for value and enable.
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config DM_REGULATOR_STM32_VREFBUF
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bool "Enable driver for STMicroelectronics STM32 VREFBUF"
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depends on DM_REGULATOR && (STM32H7 || ARCH_STM32MP)
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help
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This driver supports STMicroelectronics STM32 VREFBUF (voltage
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reference buffer) which can be used as voltage reference for
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internal ADCs, DACs and also for external components through
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dedicated Vref+ pin.
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config DM_REGULATOR_TPS65910
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bool "Enable driver for TPS65910 PMIC regulators"
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depends on DM_PMIC_TPS65910
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---help---
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The TPS65910 PMIC provides 4 SMPSs and 8 LDOs. This driver supports all
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regulator types of the TPS65910 (BUCK, BOOST and LDO). It implements
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the get/set api for value and enable.
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config DM_REGULATOR_STPMIC1
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bool "Enable driver for STPMIC1 regulators"
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depends on DM_REGULATOR && PMIC_STPMIC1
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---help---
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Enable support for the regulator functions of the STPMIC1 PMIC. The
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driver implements get/set api for the various BUCKS and LDOs supported
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by the PMIC device. This driver is controlled by a device tree node
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which includes voltage limits.
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config SPL_DM_REGULATOR_STPMIC1
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bool "Enable driver for STPMIC1 regulators in SPL"
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depends on SPL_DM_REGULATOR && PMIC_STPMIC1
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help
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Enable support for the regulator functions of the STPMIC1 PMIC in SPL.
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config SPL_DM_REGULATOR_PALMAS
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bool "Enable driver for PALMAS PMIC regulators"
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depends on SPL_PMIC_PALMAS
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help
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This enables implementation of driver-model regulator uclass
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features for REGULATOR PALMAS and the family of PALMAS PMICs.
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The driver implements get/set api for: value and enable in SPL.
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config SPL_DM_REGULATOR_LP87565
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bool "Enable driver for LP87565 PMIC regulators"
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depends on SPL_PMIC_LP87565
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help
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This enables implementation of driver-model regulator uclass
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features for REGULATOR LP87565 and the family of LP87565 PMICs.
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LP87565 series of PMICs have 4 single phase BUCKs that can also
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be configured in multi phase modes. The driver implements
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get/set api for value and enable in SPL.
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config SPL_DM_REGULATOR_LP873X
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bool "Enable driver for LP873X PMIC regulators"
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depends on SPL_PMIC_LP873X
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help
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This enables implementation of driver-model regulator uclass
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features for REGULATOR LP873X and the family of LP873X PMICs.
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The driver implements get/set api for: value and enable in SPL.
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