This adds a driver for the FAN53555 family of regulators and wraps it
in a PMIC implementation.

While these devices support a 'normal' and 'suspend' mode (controlled
via an external pin) to switch between two programmable voltages, this
incarnation of the driver assumes that the device is always operating
in 'normal' mode.

Only setting/reading the programmed voltage is supported at this time
and the following device functionality remains unsupported:
  - switching the selected voltage (via a GPIO)
  - disabling the voltage output via software-control
This matches the functionality of the Linux driver.

Tested on a RK3399-Q7 (with 'option 5' devices): setting voltages from
the U-Boot shell and verifying output voltages on the board.
Signed-off-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: NKlaus Goger <klaus.goger@theobroma-systems.com>

Remove additional trailing whitespaces in prompt reported by kconfiglib:

warning: DM_PMIC_SANDBOX (defined at drivers/power/pmic/Kconfig:133) has
leading or trailing whitespace in its prompt
warning: <choice> (defined at dts/Kconfig:204) has leading or trailing
whitespace in its prompt
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NFelix Brack <fb@ltec.ch>

This patch adds support for MC34708 PMIC, to be used with driver model
(DM).
Signed-off-by: NLukasz Majewski <lukma@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

This driver implements register read/write operations for STPMU1.

The STPMU1 PMIC provides 4 BUCKs, 6 LDOs, 1 VREF
and 2 power switches. It is accessed via an I2C interface.
This device is used with STM32MP1 SoCs.
Signed-off-by: NPatrick Delaunay <patrick.delaunay@st.com>

Texas Instrument's TPS65910 PMIC contains 3 buck DC-DC converts, one
boost DC-DC converter and 8 LDOs. This patch implements driver model
support for the TPS65910 PMIC and its regulators making the get/set
API for regulator value/enable available.
This patch depends on the patch "am33xx: Add a function to query MPU
voltage in uV" to build correctly. For boards relying on the DT
include file tps65910.dtsi the v3 patch "power: extend prefix match
to regulator-name property" and an appropriate regulator naming is
also required.
Signed-off-by: NFelix Brack <fb@ltec.ch>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Add support to bind the regulators/child nodes with the pmic.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>

Since this driver can be used for rk8xx series pmic,
let's rename rk808 to rk8xx, to make it clear.

Configs parts are done by sed -i "s/RK808/RK8XX/g" `grep RK808 -lr ./`
Signed-off-by: NJacob Chen <jacob-chen@iotwrt.com>

This converts the following to Kconfig:
   CONFIG_PMIC_AS3722
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add the max8997 controller for Driver model.
Exynos4210 is using max8997 pmic controller.
(pmic_max8997.c should be deprecated.)
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

This patch adds a simple pmic driver for the mc34vr500 pmic which
is used in conjunction with the fsl T1 and LS1 series SoC.
Signed-off-by: NHou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: NJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NYork Sun <york.sun@nxp.com>

Add the max8998 controller for Driver model.
Samsung S5P series are using max8998 pmic controller.
In future, it should be supported the regulator framework.
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

Add support to bind the regulators/child nodes with the pmic.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Add support to bind the regulators/child nodes with the pmic.
Also adds the pmic i2c based read/write funtions to access pmic
registers.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NTom Rini <trini@konsulko.com>

Add device model enabled PMIC driver for Ricoh RN5T567 PMIC used
on Colibri iMX7.
Signed-off-by: NStefan Agner <stefan.agner@toradex.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

This PMIC is connected on SPMI bus so needs SPMI support enabled.
Signed-off-by: NMateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Tested-by: NSimon Glass <sjg@chromium.org>

For some boards the pmic interface is useful but the regulator interface
(which comes with it) is too large. Allow them to be separated such that
SPL can decide which it needs.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This Rockchip PMIC provides features suitable for battery-powered
applications. It is commonly used with Rockchip SoCs.

Add a driver which provides register access. The regulator driver will use
this.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This driver allows I/O operations on the Samsung S2MPS11 PMIC,
which provides lots of LDO/BUCK outputs.

To enable it, update defconfig with:
- CONFIG_PMIC_S2MPS11
and additional, if were not defined:
- CONFIG_CMD_PMIC
- CONFIG_ERRNO_STR

The binding info: doc/device-tree-bindings/pmic/s2mps11.txt
Signed-off-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Tested-by: NAnand Moon <linux.amoon@gmail.com>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

Add a driver for the ACT8846 PMIC. This supports several LDOs and BUCKs and
is connected to the I2C bus. This driver supports using a regulator driver
to access the regulators.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This part of mentioned commit, was missed by my mistake during the rebase.
Signed-off-by: NPrzemyslaw Marczak <p.marczak@samsung.com>

Original commit message:
power: pmic: pfuze100 support driver model

1. Support driver model for pfuze100.
2. Introduce a new Kconfig entry DM_PMIC_PFUZE100 for pfuze100
3. This driver intends to support PF100, PF200 and PF3000, so add
   the device id into the udevice_id array.
4. Rename PMIC_NUM_OF_REGS macro to PFUZE100_NUM_OF_REGS.

Change-Id: I4fc88414f3c0285f9648e47ec7aed60addeccc4d
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>
Cc: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: NSimon Glass <sjg@chromium.org>

This PMIC is used with SoCs which need a combination of BUCKs and LDOs. The
driver supports probing and basic register access. It supports the standard
device tree binding and supports driver model. A regulator driver can be
provided also.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>

The existing TPS65090 driver does not support driver model. Add a new one
that does. This can be used as a base for a regulator driver also. It uses
the standard device tree binding.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>

This commit adds emulation of sandbox PMIC device, which includes:
- PMIC I2C emulation driver
- PMIC I/O driver (UCLASS_PMIC)
- PMIC regulator driver (UCLASS_REGULATOR)

The sandbox PMIC has 12 significant registers and 4 as padding to 16 bytes,
which allows using 'i2c md' command with the default count (16).

The sandbox PMIC provides regulators:
- 2x BUCK
- 2x LDO

Each, with adjustable output:
- Enable state
- Voltage
- Current limit (LDO1/BUCK1 only)
- Operation mode (different for BUCK and LDO)

Each attribute has it's own register, beside the enable state, which depends
on operation mode.

The header file: sandbox_pmic.h includes PMIC's default register values,
which are set on i2c pmic emul driver's probe() method.
Signed-off-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>
Tested on sandbox:
Tested-by: NSimon Glass <sjg@chromium.org>

The cleanup includes:
- pmic.h - fix mistakes in a few comments
- pmic operations: value 'reg_count' - redefine as function call
- fix function name: pmic_bind_childs() -> pmic_bind_children()
- pmic_bind_children: change the 'while' loop with the 'for'
- add implementation of pmic_reg_count() method
- pmic_bind_children() - update function call name
- Kconfig: add new line at the end of file
- Update MAX77686 driver code
Signed-off-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>
Tested on sandbox:
Tested-by: NSimon Glass <sjg@chromium.org>

This is the implementation of driver model PMIC driver.
The max77686 PMIC driver implements read/write operations and driver
bind method - to bind its childs.

This driver will try to bind the regulator devices by using it's child
info array with regulator prefixes and driver names. This should succeed
when compatible regulator driver is compiled. If no regulator driver found,
then the pmic can still provide read/write operations, and can be used with
PMIC function calls.
Signed-off-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This commit introduces the PMIC uclass implementation.
It allows providing the basic I/O interface for PMIC devices.
For the multi-function PMIC devices, this can be used as I/O
parent device, for each IC's interface. Then, each PMIC particular
function can be provided by the child device's operations, and the
child devices will use its parent for read/write by the common API.

Core files:
- 'include/power/pmic.h'
- 'drivers/power/pmic/pmic-uclass.c'

The old pmic framework is still kept and is independent.

For more detailed informations, please look into the header file.

Changes:
- new uclass-id: UCLASS_PMIC
- new config: CONFIG_DM_PMIC
Signed-off-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>