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regulator: Support ROHM BD71815 regulators

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Support voltage control for regulators on ROHM BD71815 PMIC.

ROHM BD71815 contains 5 bucks, 7 LDOs and a boost (intended for LED).
Bucks 1 and 2 support HW state based voltage level and enable states. Other
regulators support HW state based enable states. All bucks and LDOs 1-5
allow voltage changes for RUN state and LDO4 can be enabled/disabled via
GPIO.

LDO3 does support changing between two predetermined voltages by using
a GPIO but this functionality is not included in this commit.

This work is derived from driver originally written by Tony Luo
<luofc@embedinfo.com> - although not much of original work is left.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Matti Vaittinen
2021-04-05 14:44:16 +03:00
committed by Lee Jones
parent 18f3c62586
commit 1aad39001e
3 changed files with 664 additions and 0 deletions
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11
drivers/regulator/Kconfig
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@@ -204,6 +204,17 @@ config REGULATOR_BD70528
This driver can also be built as a module. If so, the module
will be called bd70528-regulator.
config REGULATOR_BD71815
tristate "ROHM BD71815 Power Regulator"
depends on MFD_ROHM_BD71828
help
This driver supports voltage regulators on ROHM BD71815 PMIC.
This will enable support for the software controllable buck
and LDO regulators and a current regulator for LEDs.
This driver can also be built as a module. If so, the module
will be called bd71815-regulator.
config REGULATOR_BD71828
tristate "ROHM BD71828 Power Regulator"
depends on MFD_ROHM_BD71828

1
drivers/regulator/Makefile
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@@ -30,6 +30,7 @@ obj-$(CONFIG_REGULATOR_ATC260X) += atc260x-regulator.o
obj-$(CONFIG_REGULATOR_AXP20X) += axp20x-regulator.o
obj-$(CONFIG_REGULATOR_BCM590XX) += bcm590xx-regulator.o
obj-$(CONFIG_REGULATOR_BD70528) += bd70528-regulator.o
obj-$(CONFIG_REGULATOR_BD71815) += bd71815-regulator.o
obj-$(CONFIG_REGULATOR_BD71828) += bd71828-regulator.o
obj-$(CONFIG_REGULATOR_BD718XX) += bd718x7-regulator.o
obj-$(CONFIG_REGULATOR_BD9571MWV) += bd9571mwv-regulator.o

652
drivers/regulator/bd71815-regulator.c Normal file
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