Add a simple regulator based on SCMI Voltage Domain Protocol.
Signed-off-by: NCristian Marussi <cristian.marussi@arm.com>
----
v6 --> v7
- add proper blank lines between semantic blocks
- fix return value on error path of scmi_reg_is_enabled()
- use generic Failure message on err path of info_get()
- fix comment containing apostrophe

v3 --> v4
- using of_match_full_name core regulator flag
- avoid coccinelle falde complaints about pointer-sized allocations

v2 --> v3
- remove multiple linear mappings support
- removed duplicated voltage name printout
- added a few comments
- simplified return path in scmi_reg_set_voltage_sel()

v1 --> v2
- removed duplicate regulator naming
- removed redundant .get/set_voltage ops: only _sel variants implemented
- removed condexpr on fail path to increase readability

v0 --> v1
- fixed init_data constraint parsing
- fixes for v5.8 (linear_range.h)
- fixed commit message content and subject line format
- factored out SCMI core specific changes to distinct patch
- reworked Kconfig and Makefile to keep proper alphabetic order
- fixed SPDX comment style
- removed unneeded inline functions
- reworked conditionals for legibility
- fixed some return paths to properly report SCMI original errors codes
- added some more descriptive error messages when fw returns invalid ranges
- removed unneeded explicit devm_regulator_unregister from .remove()
Link: https://lore.kernel.org/r/20201123202336.46701-4-cristian.marussi@arm.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add support for the Dialog Semiconductor DA9121, a single-channel
dual-phase buck converter controlled via I2C.
Signed-off-by: NVincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20201103100021.19603-3-vincent.whitchurch@axis.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add support for Richtek RTMV20 load switch regulator.
Signed-off-by: NChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1601277584-5526-1-git-send-email-u0084500@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Most of Maxim and Samsung PMIC/MUIC regulator drivers can be compile
tested to increase build coverage.  This allows to build them on
configurations without I2C (as I2C is required by dependency - parent
MFD driver).
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200920214107.6299-1-krzk@kernel.orgSigned-off-by: NMark Brown <broonie@kernel.org>

Add initial support for ROHM BD9576MUF and BD9573MUF PMICs regulators.
These PMICs are mainly used to power the R-Car series processors.

The BD9576 includes some functional-safety features which are not
present on BD9573.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/78baea1d7922506827ca717e277e4e6b391bbb78.1600329307.git.matti.vaittinen@fi.rohmeurope.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add MT6360 regulator driver that contains two BUCKs and six LDOs
Signed-off-by: NGene Chen <gene_chen@richtek.com>
Link: https://lore.kernel.org/r/1598438958-26802-2-git-send-email-gene.chen.richtek@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Fix build error when CONFIG_REGMAP_I2C is not set.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200819085959.1914471-1-axel.lin@ingics.comSigned-off-by: NMark Brown <broonie@kernel.org>

This regulator/backlight driver handles the ATTINY88 present on the
RPi 7" touchscreen panel and exposes the power/backlight interfaces.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Eric Anholt <eric@anholt.net>
Cc: Mark Brown <broonie@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
To: dri-devel@lists.freedesktop.org
Link: https://lore.kernel.org/r/20200809105938.6388-2-marex@denx.deSigned-off-by: NMark Brown <broonie@kernel.org>

Adds support for the RT4801 DSV. It has two regulators (DSVP/DSVN) with
an I2C interface. DSVP/DSVN can provide the display panel module for the
positive/negative voltage range from (+/-)4V to (+/-)6V.
Signed-off-by: NChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1597461262-25878-1-git-send-email-u0084500@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Qualcomm platforms have LAB(LCD AMOLED Boost)/IBB(Inverting Buck Boost)
regulators, labibb for short, which are used as power supply for
LCD Mode displays.

This patch adds labibb regulator driver for pmi8998 PMIC, found on
SDM845 platforms.

  [sumits: reworked the driver design as per upstream review]
Signed-off-by: NNisha Kumari <nishakumari@codeaurora.org>
Signed-off-by: NSumit Semwal <sumit.semwal@linaro.org>
Link: https://lore.kernel.org/r/20200622124110.20971-5-sumit.semwal@linaro.orgSigned-off-by: NMark Brown <broonie@kernel.org>

This patch adds support for COMPILE_TEST while fixing a warning when
no support for device tree is there.
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Link: https://lore.kernel.org/r/1c437154873ace65ff738a0ebca511308f1cecc1.camel@googlemail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add NXP pca9450 pmic driver.
Signed-off-by: NRobin Gong <yibin.gong@nxp.com>
Reviewed-by: NFrieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/r/1593793178-9737-2-git-send-email-yibin.gong@nxp.comSigned-off-by: NMark Brown <broonie@kernel.org>

This patch adds support for ON Semiconductor FAN53880 regulator.

The FAN53880 is an I2C porgrammable power management IC (PMIC)
that contains a BUCK (step-down converter), four LDOs (low dropouts)
and one BOOST (step-up converter).  It is designed for mobile power
applications.
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Link: https://lore.kernel.org/r/20200702210846.31659-2-chf.fritz@googlemail.comSigned-off-by: NMark Brown <broonie@kernel.org>

The SY8827N from Silergy Corp is a single output DC/DC converter. The
voltage can be controlled via I2C.
Signed-off-by: NJisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20200702171438.20edc523@xhacker.debianSigned-off-by: NMark Brown <broonie@kernel.org>

Some Qualcomm PMICs have the capability to source the VBUS output to
connected peripherals.  This driver will register a regulator to the
regulator list to enable or disable this source by an external driver.
Signed-off-by: NWesley Cheng <wcheng@codeaurora.org>
Link: https://lore.kernel.org/r/20200626185516.18018-5-wcheng@codeaurora.orgSigned-off-by: NMark Brown <broonie@kernel.org>

The MFD part is merged into v5.8-rc1, thus remove BROKEN dependency.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200616135030.1163660-1-axel.lin@ingics.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add driver for cros-ec-regulator, representing a voltage regulator that
is connected and controlled by ChromeOS EC, and is controlled by kernel
with EC host commands.
Signed-off-by: NPi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: NPrashant Malani <pmalani@chromium.org>
Reviewed-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20200612040526.192878-4-pihsun@chromium.orgSigned-off-by: NMark Brown <broonie@kernel.org>

Change the regulator helpers to use common linear_ranges code.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: NMark Brown <broonie@kernel.org>
Acked-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/64f01d5e381b8631a271616b7790f9d5640974fb.1588944082.git.matti.vaittinen@fi.rohmeurope.comSigned-off-by: NMark Brown <broonie@kernel.org>

Adding regulator driver for the Maxim max77826 device.
The max77826 PMIC contains a high-efficiency BUCK regulator, a BUCK
BOOST regulator and 15 LDOs. It is designed for smartphone and tablet
applications and is accessed over I2C.
Signed-off-by: NIskren Chernev <iskren.chernev@gmail.com>
Link: https://lore.kernel.org/r/20200414172250.2363235-2-iskren.chernev@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

The MP8869 from Monolithic Power Systems is a single output DC/DC
converter. The voltage can be controlled via I2C.
Signed-off-by: NJisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20200316223020.1a6d92ae@xhackerSigned-off-by: NMark Brown <broonie@kernel.org>

ANATOP regulator should depend on ARCH_MXC or COMPILE_TEST.
Signed-off-by: NAnson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1583150118-8014-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: NMark Brown <broonie@kernel.org>

Adding regulator driver for the device mp5416.
The MP5416 PMIC device contains four DC-DC buck converters and
five regulators, accessed over I2C.
Signed-off-by: NSaravanan Sekar <sravanhome@gmail.com>
Link: https://lore.kernel.org/r/20200204110419.25933-3-sravanhome@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Few ROHM PMICs allow setting the voltage states for different system states
like RUN, IDLE, SUSPEND and LPSR. States are then changed via SoC specific
mechanisms. bd718x7 driver implemented device-tree parsing functions for
these state specific voltages. The parsing functions can be re-used by
other ROHM chip drivers like bd71828. Split the generic functions from
bd718x7-regulator.c to rohm-regulator.c and export them for other modules
to use.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This introduces the IPQ4019 VQMMC LDO driver needed for
the SD/EMMC driver I/O level operation.
This will enable introducing SD/EMMC support for the built-in controller.
Signed-off-by: NMantas Pucka <mantas@8devices.com>
Signed-off-by: NRobert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20200112113003.11110-1-robert.marko@sartura.hrSigned-off-by: NMark Brown <broonie@kernel.org>

Adding regulator driver for the device mpq7920.
The MPQ7920 PMIC device contains four DC-DC buck converters and
five regulators, is designed for automotive and accessed over I2C.

Fixed sparse warning reported on this patch
Reported-by: Nkbuild test robot <lkp@intel.com>
Signed-off-by: NSaravanan Sekar <sravanhome@gmail.com>
Link: https://lore.kernel.org/r/20200109195346.30270-1-sravanhome@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add entries for the mp8859 regulator driver
to the build system.
Signed-off-by: NMarkus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/20200106211633.2882-3-m.reichl@fivetechno.deSigned-off-by: NMark Brown <broonie@kernel.org>

ROHM BD71828 is a power management IC containing 7 bucks and 7 LDOs. Bucks
1,2,6 and 7 can be assigned to a regulator group controlled by run-levels.
Eg. Voltages and enable/disable statuses for specific run-levels (run0 to
run3) can be set via register interface and run level changes can then be
done either via I2C or GPIO.

This initial commit does not support assigning bucks to be controlled via
run-levels but only allows them to be individually controlled.

LDO5 voltage can also be controlled by GPIO2 pin and register interfaces
but this driver only supports the control via register.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/5b1c4a22c7945e97ff2a7924abfeb3239043f8eb.1576054779.git.matti.vaittinen@fi.rohmeurope.comSigned-off-by: NMark Brown <broonie@kernel.org>

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20191120133949.13996-1-krzk@kernel.orgSigned-off-by: NMark Brown <broonie@kernel.org>

The mt6358 driver was merged in error, it depends on an existing MFD
rather than a newly added one and needs updates to that driver.  Disable
the build until those are merged.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NMark Brown <broonie@kernel.org>

The MT6358 is a regulator found on boards based on MediaTek MT8183 and
probably other SoCs. It is a so called pmic and connects as a slave to
SoC using SPI, wrapped inside the pmic-wrapper.
Signed-off-by: NHsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Link: https://lore.kernel.org/r/1566531931-9772-8-git-send-email-hsin-hsiung.wang@mediatek.comSigned-off-by: NMark Brown <broonie@kernel.org>

The only difference between SY8824E and SY8824C/D is the vsel_min.
Signed-off-by: NJisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163537.52023c4e@xhacker.debianSigned-off-by: NMark Brown <broonie@kernel.org>

SY8824C is an I2C attached single output regulator made by Silergy Corp,
which is used on several Synaptics berlin platforms to control the
power supply of the ARM cores.

Add a driver for it.
Signed-off-by: NJisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163418.1a32fc48@xhacker.debianSigned-off-by: NMark Brown <broonie@kernel.org>

Building without CONFIG_POWER_SUPPLY will fail:

drivers/regulator/act8865-regulator.o: In function `act8865_pmic_probe':
act8865-regulator.c:(.text+0x357): undefined reference to `devm_power_supply_register'
drivers/regulator/act8865-regulator.o: In function `act8600_charger_get_property':
act8865-regulator.c:(.text+0x3f1): undefined reference to `power_supply_get_drvdata'

Add POWER_SUPPLY dependency to Kconfig.
Reported-by: NHulk Robot <hulkci@huawei.com>
Fixes: 2d09a79b ("regulator: act8865: Add support for act8600 charger")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190807133822.67124-1-yuehaibing@huawei.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add support for the 3.3V booster regulator embedded in stm32h7 and stm32mp1
devices, that can be used to supply ADC analog input switches.

This regulator is supplied by vdda. It's controlled by using SYSCFG:
- STM32H7 has a unique register to set/clear the booster enable bit
- STM32MP1 has separate set and clear registers to configure it.
Signed-off-by: NFabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

    Add support for the rk809 and rk817 regulator driver.
    Their specifications are as follows：
    1. The RK809 and RK809 consist of 5 DCDCs, 9 LDOs
       and have the same registers for these components except dcdc5.
    2. The dcdc5 is a boost dcdc for RK817 and is a buck for RK809.
    3. The RK817 has one switch but The Rk809 has two.

    The output voltages are configurable and are meant to supply power
    to the main processor and other components.
Signed-off-by: NTony Xie <tony.xie@rock-chips.com>
Acked-by: NMark Brown <broonie@kernel.org>
[rebased on top of 5.2-rc1]
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Adding regulator support for the LM36274 backlight driver.
This device can leverage this existing code as the functionality
and registers are common enough between the LM36274 and the LM363x
series of devices.
Signed-off-by: NDan Murphy <dmurphy@ti.com>
Acked-by: NMark Brown <broonie@kernel.org>
Acked-by: NPavel Machek <pavel@ucw.cz>
Signed-off-by: NJacek Anaszewski <jacek.anaszewski@gmail.com>

This adds a new driver identity "madera-micsupp" and probe function
so that this driver can be used to control the micsupp regulator on
Cirrus Logic Madera codecs.
Signed-off-by: NRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This adds a new driver identity "madera-ldo1" and probe function
so that this driver can be used to control the LDO1 regulator on
some Cirrus Logic Madera codecs.
Signed-off-by: NRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

With OF being the only configuration possibility left, depend on it to
simplify some code.
Signed-off-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: NSimon Horman <horms+renesas@verge.net.au>
Acked-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Tested-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NMark Brown <broonie@kernel.org>