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u-boot/drivers/power/pmic/Kconfig
Stephan Gerhold 3f6e4ec7c3 power: pmic: Add driver for ST-Ericsson AB8500 via PRCMU 
All devices based on ST-Ericsson Ux500 use a PMIC similar to AB8500
(Analog Baseband). There is AB8500, AB8505, AB9540 and AB8540
although in practice only AB8500 and AB8505 are relevant since the
platforms with AB9540 and AB8540 were cancelled and never used in
production.

In general, the AB8500 PMIC uses I2C as control interface, where the
different register banks are represented as separate I2C devices.
However, in practice AB8500 is always connected to a special I2C bus
on the DB8500 SoC that is controlled by the power/reset/clock
management unit (PRCMU) firmware.

Add a simple driver that allows reading/writing registers of the
AB8500 PMIC. The driver directly accesses registers from the PRCMU
parent device (represented by syscon in U-Boot). Abstracting it
further (e.g. with the i2c uclass) would not provide any advantage
because the PRCMU I2C bus is always just connected to AB8500 and
vice-versa.

The ab8500.h header is mostly taken as-is from Linux (with some
minor adjustments) to allow using similar code in both Linux and
U-Boot.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-14 16:48:14 -04:00

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config DM_PMIC
bool "Enable Driver Model for PMIC drivers (UCLASS_PMIC)"
depends on DM
---help---
This config enables the driver-model PMIC support.
UCLASS_PMIC - designed to provide an I/O interface for PMIC devices.
For the multi-function PMIC devices, this can be used as parent I/O
device for each IC's interface. Then, each children uses its parent
for read/write. For detailed description, please refer to the files:
- 'drivers/power/pmic/pmic-uclass.c'
- 'include/power/pmic.h'
config PMIC_CHILDREN
bool "Allow child devices for PMICs"
depends on DM_PMIC
default y
---help---
This allows PMICs to support child devices (such as regulators) in
SPL. This adds quite a bit of code so if you are not using this
feature you can turn it off. Most likely you should turn it on for
U-Boot proper.
config SPL_PMIC_CHILDREN
bool "Allow child devices for PMICs in SPL"
depends on DM_PMIC
default y
---help---
This allows PMICs to support child devices (such as regulators) in
SPL. This adds quite a bit of code so if you are not using this
feature you can turn it off. In this case you may need a 'back door'
to call your regulator code (e.g. see rk8xx.c for direct functions
for use in SPL).
config PMIC_AB8500
bool "Enable driver for ST-Ericsson AB8500 PMIC via PRCMU"
depends on DM_PMIC
select REGMAP
select SYSCON
help
Enable support for the ST-Ericsson AB8500 (Analog Baseband) PMIC.
It connects with the ST-Ericsson DB8500 SoC via an I2C bus managed by
the power/reset/clock management unit (PRCMU) firmware.
config PMIC_ACT8846
bool "Enable support for the active-semi 8846 PMIC"
depends on DM_PMIC && DM_I2C
---help---
This PMIC includes 4 DC/DC step-down buck regulators and 8 low-dropout
regulators (LDOs). It also provides some GPIO, reset and battery
functions. It uses an I2C interface and is designed for use with
tablets and smartphones.
config DM_PMIC_DA9063
bool "Enable Driver Model for the Dialog DA9063 PMIC"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass features
for PMIC DA9063. The driver implements read/write operations.
config SPL_DM_PMIC_DA9063
bool "Enable Driver Model for the Dialog DA9063 PMIC in SPL"
depends on DM_PMIC && SPL
help
This config enables implementation of driver-model pmic uclass features
for PMIC DA9063. The driver implements read/write operations.
config PMIC_AS3722
bool "Enable support for the Austria Micro Systems (AMS) AS7322 PMIC"
help
The AS3722 includes 7 DC/DC buck convertors, 11 low-noise LDOs, a
real-time clock, GPIOs, ADC and a few other features. It uses an I2C
interface and is designs to cover most of the power managementment
required for a tablets or laptop.
config DM_PMIC_BD71837
bool "Enable Driver Model for PMIC BD71837"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass features
for PMIC BD71837. The driver implements read/write operations.
config SPL_DM_PMIC_BD71837
bool "Enable Driver Model for PMIC BD71837 in SPL stage"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass
features for PMIC BD71837. The driver implements read/write
operations.
config DM_PMIC_FAN53555
bool "Enable support for OnSemi FAN53555"
depends on DM_PMIC && DM_REGULATOR && DM_I2C
select DM_REGULATOR_FAN53555
help
This config enables implementation of driver-model PMIC
uclass features for the FAN53555 regulator. The FAN53555 is
a (family of) single-output regulators that supports
transitioning between two different output voltages based on
an voltage selection pin.
The driver implements read/write operations for use with the FAN53555
regulator driver and binds the regulator driver to its node.
config DM_PMIC_MP5416
bool "Enable Driver Model for PMIC MP5416"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass features
for PMIC MP5416. The driver implements read/write operations.
config SPL_DM_PMIC_MP5416
bool "Enable Driver Model for PMIC MP5416 in SPL stage"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass
features for PMIC MP5416. The driver implements read/write
operations.
config DM_PMIC_PCA9450
bool "Enable Driver Model for PMIC PCA9450"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass features
for PMIC PCA9450. The driver implements read/write operations.
config SPL_DM_PMIC_PCA9450
bool "Enable Driver Model for PMIC PCA9450"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass features
for PMIC PCA9450 in SPL. The driver implements read/write operations.
config DM_PMIC_PFUZE100
bool "Enable Driver Model for PMIC PFUZE100"
depends on DM_PMIC
---help---
This config enables implementation of driver-model pmic uclass features
for PMIC PFUZE100. The driver implements read/write operations.
config SPL_DM_PMIC_PFUZE100
bool "Enable Driver Model for PMIC PFUZE100 in SPL"
depends on DM_PMIC
---help---
This config enables implementation of driver-model pmic uclass features
for PMIC PFUZE100 in SPL. The driver implements read/write operations.
config DM_PMIC_MAX77686
bool "Enable Driver Model for PMIC MAX77686"
depends on DM_PMIC
---help---
This config enables implementation of driver-model pmic uclass features
for PMIC MAX77686. The driver implements read/write operations.
config DM_PMIC_MAX8998
bool "Enable Driver Model for PMIC MAX8998"
depends on DM_PMIC
---help---
This config enables implementation of driver-model pmic uclass features
for PMIC MAX8998. The driver implements read/write operations.
config DM_PMIC_MC34708
bool "Enable Driver Model for PMIC MC34708"
depends on DM_PMIC
help
This config enables implementation of driver-model pmic uclass features
for PMIC MC34708. The driver implements read/write operations.
config PMIC_MAX8997
bool "Enable Driver Model for PMIC MAX8997"
depends on DM_PMIC
---help---
This config enables implementation of driver-model pmic uclass features
for PMIC MAX8997. The driver implements read/write operations.
This is a Power Management IC with RTC, Fuel Gauge, MUIC control on Chip.
- 21x LDOs
- 12x GPIOs
- Haptic Motor driver
- RTC with two alarms
- Fueal Gauge and One backup battery charger
- MUIC
- Others
config PMIC_PM8916
bool "Enable Driver Model for Qualcomm PM8916 PMIC"
depends on DM_PMIC
---help---
The PM8916 is a PMIC connected to one (or several) processors
with SPMI bus. It has 2 slaves with several peripherals:
- 18x LDO
- 4x GPIO
- Power and Reset buttons
- Watchdog
- RTC
- Vibrator drivers
- Others
Driver binding info: doc/device-tree-bindings/pmic/pm8916.txt
config PMIC_RK8XX
bool "Enable support for Rockchip PMIC RK8XX"
depends on DM_PMIC
---help---
The Rockchip RK808 PMIC provides four buck DC-DC convertors, 8 LDOs,
an RTC and two low Rds (resistance (drain to source)) switches. It is
accessed via an I2C interface. The device is used with Rockchip SoCs.
This driver implements register read/write operations.
config PMIC_S2MPS11
bool "Enable Driver Model for PMIC Samsung S2MPS11"
depends on DM_PMIC
---help---
The Samsung S2MPS11 PMIC provides:
- 38 adjustable LDO regulators
- 9 High-Efficiency Buck Converters
- 1 BuckBoost Converter
- RTC with two alarms
- Backup battery charger
- I2C Configuration Interface
This driver provides access to I/O interface only.
Binding info: doc/device-tree-bindings/pmic/s2mps11.txt
config DM_PMIC_SANDBOX
bool "Enable Driver Model for emulated Sandbox PMIC"
depends on DM_PMIC
---help---
Enable the driver for Sandbox PMIC emulation. The emulated PMIC device
depends on two drivers:
- sandbox PMIC I/O driver - implements dm pmic operations
- sandbox PMIC i2c emul driver - emulates the PMIC's I2C transmission
A detailed information can be found in header: '<power/sandbox_pmic.h>'
The Sandbox PMIC info:
* I/O interface:
- I2C chip address: 0x40
- first register address: 0x0
- register count: 0x10
* Adjustable outputs:
- 2x LDO
- 2x BUCK
- Each, with a different operating conditions (header).
* Reset values:
- set by i2c emul driver's probe() (defaults in header)
Driver binding info: doc/device-tree-bindings/pmic/sandbox.txt
config PMIC_S5M8767
bool "Enable Driver Model for the Samsung S5M8767 PMIC"
depends on DM_PMIC
---help---
The S5M8767 PMIC provides a large array of LDOs and BUCKs for use
as a SoC power controller. It also provides 32KHz clock outputs. This
driver provides basic register access and sets up the attached
regulators if regulator support is enabled.
config PMIC_RN5T567
bool "Enable driver for Ricoh RN5T567 PMIC"
depends on DM_PMIC
---help---
The RN5T567 is a PMIC with 4 step-down DC/DC converters, 5 LDO
regulators Real-Time Clock and 4 GPIOs. This driver provides
register access only.
config PMIC_TPS65090
bool "Enable driver for Texas Instruments TPS65090 PMIC"
depends on DM_PMIC
---help---
The TPS65090 is a PMIC containing several LDOs, DC to DC convertors,
FETs and a battery charger. This driver provides register access
only, and you can enable the regulator/charger drivers separately if
required.
config PMIC_PALMAS
bool "Enable driver for Texas Instruments PALMAS PMIC"
depends on DM_PMIC
---help---
The PALMAS is a PMIC containing several LDOs, SMPS.
This driver binds the pmic children.
config PMIC_LP873X
bool "Enable driver for Texas Instruments LP873X PMIC"
depends on DM_PMIC
---help---
The LP873X is a PMIC containing couple of LDOs and couple of SMPS.
This driver binds the pmic children.
config PMIC_LP87565
bool "Enable driver for Texas Instruments LP87565 PMIC"
depends on DM_PMIC
---help---
The LP87565 is a PMIC containing a bunch of SMPS.
This driver binds the pmic children.
config POWER_MC34VR500
bool "Enable driver for Freescale MC34VR500 PMIC"
---help---
The MC34VR500 is used in conjunction with the FSL T1 and LS1 series
SoC. It provides 4 buck DC-DC convertors and 5 LDOs, and it is accessed
via an I2C interface.
config DM_PMIC_TPS65910
bool "Enable driver for Texas Instruments TPS65910 PMIC"
depends on DM_PMIC
---help---
The TPS65910 is a PMIC containing 3 buck DC-DC converters, one boost
DC-DC converter, 8 LDOs and a RTC. This driver binds the SMPS and LDO
pmic children.
config PMIC_STPMIC1
bool "Enable support for STMicroelectronics STPMIC1 PMIC"
depends on DM_PMIC && DM_I2C
select SYSRESET_CMD_POWEROFF if CMD_POWEROFF && !ARM_PSCI_FW
---help---
The STPMIC1 PMIC provides 4 BUCKs, 6 LDOs, 1 VREF and 2 power switches.
It is accessed via an I2C interface. The device is used with STM32MP1
SoCs. This driver implements register read/write operations.
config SPL_PMIC_PALMAS
bool "Enable driver for Texas Instruments PALMAS PMIC"
depends on DM_PMIC
help
The PALMAS is a PMIC containing several LDOs, SMPS.
This driver binds the pmic children in SPL.
config SPL_PMIC_LP873X
bool "Enable driver for Texas Instruments LP873X PMIC"
depends on DM_PMIC
help
The LP873X is a PMIC containing couple of LDOs and couple of SMPS.
This driver binds the pmic children in SPL.
config SPL_PMIC_LP87565
bool "Enable driver for Texas Instruments LP87565 PMIC"
depends on DM_PMIC
help
The LP87565 is a PMIC containing a bunch of SMPS.
This driver binds the pmic children in SPL.
config PMIC_TPS65941
bool "Enable driver for Texas Instruments TPS65941 PMIC"
depends on DM_PMIC
help
The TPS65941 is a PMIC containing a bunch of SMPS & LDOs.
This driver binds the pmic children.
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