Add regulator support for mt6311.
It has 2 regulaotrs - Buck and LDO, provide the related buck/ldo voltage
data to the driver, and creates the regulator_desc table. Supported
operations for Buck are enabled/disabled and voltage change, only
enabled/disabled for LDO.
Signed-off-by: NHenry Chen <henryc.chen@mediatek.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add an SPMI regulator driver for Qualcomm's PM8841, PM8941, and
PM8916 PMICs. This driver is based largely on code from
codeaurora.org[1].

[1] https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/regulator/qpnp-regulator.c?h=msm-3.10
Cc: David Collins <collinsd@codeaurora.org>
Cc: <devicetree@vger.kernel.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add BUCK and LDO regulator driver support for DA9062
Signed-off-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This patch adds new regulator driver to support max77843
MFD(Multi Function Device) chip`s regulators.
The Max77843 has two voltage regulators for USB safeout.
Signed-off-by: NJaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: NBeomho Seo <beomho.seo@samsung.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add MT6397 regulator driver.
Signed-off-by: NFlora Fu <flora.fu@mediatek.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This patch add device driver of Richtek RT5033 PMIC.
The driver support multiple regulator like LDO and synchronous Buck.
The integrated synchronous buck converter is designed to provide 0.6 A
application with high efficiency. Two LDOs are integrated. One safe LDO is
for 60mA and the other one LDO is for 150 mA.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: NBeomho Seo <beomho.seo@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

rename st-pwm to pwm-regulator. And support getting voltage & duty table from
device tree, other platforms can also use this driver without any modify.
Signed-off-by: NChris Zhong <zyw@rock-chips.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Tested-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Driver for regulators exposed by the Resource Power Manager (RPM) found
in Qualcomm 8660, 8960 and 8064 based devices.
Signed-off-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The ISL9305 and ISL9305H are mini-PMICs offering two DCDC regulators and
two LDO regulators. While there are some register differences between them
these do not affect the current Linux driver as the relevant features are
not yet supported.
Signed-off-by: NMark Brown <broonie@kernel.org>

This driver supports the 3 DCDC and 7 LDO regulators available on
Ricoh RN5T618 PMIC.
Signed-off-by: NBeniamino Galvani <b.galvani@gmail.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The regulator module consists of 4 DCDCs, 8 LDOs and 2 switches.
The output voltages are configurable and are meant to supply power
to the main processor and other components
Signed-off-by: NChris Zhong <zyw@rock-chips.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout
(LDO) regulators. This patch adds support for all these regulators
found on the MAX77802 PMIC and is based on a driver added by Simon
Glass to the Chrome OS kernel 3.8 tree.
Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add driver support for HiSilicon Hi6421 voltage regulators.

Two rules for regulator enabling are defined in hi6421 spec:
1) Between disable and enable of each regulator (LDOs or BUCKs), there must
   be a protection gap. Use @off_on_delay of regulator core to implement this.
2) No two regulators can be enabled at the same time. Use mutex in
   hi6421_regulator_pdata to ensure this. A protection gap of 100us is added
   into each LDO/BUCK's .enable_time.
Signed-off-by: NGuodong Xu <guodong.xu@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

Signed-off-by: NGyungoh Yoo <jack.yoo@skyworksinc.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

This is the driver for the Dialog DA9211 Multi-phase 12A DC-DC Buck
Converter regulator. It communicates via an I2C bus to the device.
Signed-off-by: NJames Ban <james.ban.opensource@diasemi.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

This patch adds support for the Linear Technology LTC3589, LTC3589-1,
and LTC3589-2 8-output I2C voltage regulator ICs.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

AXP202 and AXP209 come with two synchronous step-down DC-DCs and five
LDOs. This patch introduces basic support for those regulators.
Signed-off-by: NCarlo Caione <carlo@caione.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

On some STMicroelectronics hardware reside regulators consisting
partly of a PWM input connected to the feedback loop. As the PWM
duty-cycle is varied the output voltage adapts. This driver
allows us to vary the output voltage by adapting the PWM input
duty-cycle.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add support for S2MPA01 voltage and current regulator.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add a regulator driver for the BCM590xx PMU voltage regulators.
The driver supports LDOs and DCDCs in normal mode only. There is
no support for low-power mode or power sequencing.
Signed-off-by: NMatt Porter <mporter@linaro.org>
Reviewed-by: NTim Kryger <tim.kryger@linaro.org>
Reviewed-by: NMarkus Mayer <markus.mayer@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

pbias register controls internal power supply to sd card i/o pads
in most OMAPs (OMAP2-5, DRA7).
Control bits for selecting voltage level and
enabling/disabling are in the same PBIAS register.
Signed-off-by: NBalaji T K <balajitk@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Acked-by: NMark Brown <broonie@linaro.org>
Tested-by: NFlorian Vaussard <florian.vaussard@epfl.ch>
Tested-by: NStefan Roese <sr@denx.de>
Signed-off-by: NChris Ball <chris@printf.net>

This patch adds support for TPS65218 PMIC regulators.

The regulators set consists of 6 DCDCs and 1 LDO. The output
voltages are configurable and are meant to supply power to the
main processor and other components.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Signed-off-by: NWenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

MAX14577 chip is a multi-function device which includes MUIC,
charger and voltage regulator. The driver is located in drivers/mfd.

This patch adds regulator driver for MAX14577 chip. There are two
regulators in this chip:
1. Safeout LDO with constant voltage output of 4.9V. It can be only
   enabled or disabled.
2. Current regulator for the charger. It provides current from 90mA up
   to 950mA.
Driver supports Device Tree.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

The AMS AS3722 is a compact system PMU suitable for mobile phones,
tablets etc. It has 4 DCDC step down regulators, 3 DCDC step down
controller, 11 LDOs.

Add a driver to support accessing the DCDC/LDOs found on the AMS
AS3722 PMIC using regulators.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NFlorian Lobmaier <florian.lobmaier@ams.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

The ST Microelectronics STw481x PMIC used for the Nomadik
has one single software-controlled regulator for VMMC.
This driver registers directly to the compatible string
as there is just one regulator.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

Cut down on the size of core.c a bit more and ensure that the devres
versions of things don't do too much peering inside the internals of
the APIs they wrap.
Signed-off-by: NMark Brown <broonie@linaro.org>

The driver adds support for the following DA9063 PMIC regulators:
 - 11x LDOs (named LDO1 - LDO11),
 - 6x buck converters (BCORE1, BCORE2, BPRO, BMEM, BIO, BPERI),

Regulators provide following operations:
 - REGULATOR_CHANGE_STATUS and REGULATOR_CHANGE_VOLTAGE for all regulators,
 - REGULATOR_CHANGE_MODE for LDOs and buck converters, where:
     - LDOs allow REGULATOR_MODE_NORMAL and REGULATOR_MODE_STANDBY,
     - buck converters allow REGULATOR_MODE_FAST, REGULATOR_MODE_NORMAL
       and REGULATOR_MODE_STANDBY,
 - REGULATOR_CHANGE_CURRENT for buck converters (current limits).

The driver generates REGULATOR_EVENT_OVER_CURRENT for LDO3, LDO4, LDO7, LDO8
and LDO11.

Internally, PMIC provides two voltage configurations for normal and suspend
system state for each regulator. The driver switches between those on
suspend/wake-up to provide quick and fluent output voltage change.

This driver requires MFD core driver for operation.
Signed-off-by: NKrystian Garbaciak <krystian.garbaciak@diasemi.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

Reduce the size of core.c a bit.
Signed-off-by: NMark Brown <broonie@linaro.org>

I2C driver for the Dialog DA9210 Multi-phase 12A DC-DC Buck.
Signed-off-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: NDavid Dajun Chen <david.chen@diasemi.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add pfuze100 regulator driver.
Signed-off-by: NRobin Gong <b38343@freescale.com>
Tested-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add the regulator driver for PMIC 88pm800 including device tree
support.
88pm800 is an I2C-based power-management IC containing voltage
regulators, a real-time clock, and some general purpose ADC devices,
Signed-off-by: NYi Zhang <yizhang@marvell.com>
Signed-off-by: NChao Xie <chao.xie@marvell.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Reduces merge issues if nothing else.
Signed-off-by: NMark Brown <broonie@kernel.org>

This patch adds new regulator driver to support max77693 chip's regulators.
max77693 has two linear voltage regulators and one current regulator which
can be controlled through I2C bus. This driver also supports device tree.
Signed-off-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: NMyungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

This patch changes the order in which the AB8500 regulator drivers are
registered and subsequently probed. It saves a lot of -EPROBE_DEFEER
nonsense and bootlog noise, as some AB8500 core regulators depend on
the external ones for supply voltage.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

Adaptive Body Biasing (ABB) modulates transistor bias voltages
dynamically in order to optimize switching speed versus leakage.

Texas Instruments' SmartReflex 2 technology provides support for this
power management technique with Forward Body Biasing (FBB) and Reverse
Body Biasing (RBB). These modulate the body voltage of transistor
cells or blocks dynamically to gain performance and reduce leakage.
TI's SmartReflex white paper[1] has further information for usage in
conjunction with other power management techniques.

The application of FBB/RBB technique is determined for each unique
device in some process nodes, whereas, they are mandated on other
process nodes.

In a nutshell, ABB technique is implemented on TI SoC as an on-chip
LDO which has ABB module controlling the bias voltage. However, the
voltage is unique per device. These vary per SoC family and the manner
in which these techniques are used may vary depending on the Operating
Performance Point (OPP) voltage targeted. For example:
OMAP3630/OMAP4430: certain OPPs mandate usage of FBB independent of
	devices.
OMAP4460/OMAP4470: certain OPPs mandate usage of FBB, while others may
	optionally use FBB or optimization with RBB.
OMAP5: ALL OPPs may optionally use ABB, and ABB biasing voltage is
	influenced by vset fused in s/w and requiring s/w override of
	default values.

Further, two generations of ABB module are used in various TI SoCs.
They have remained mostly register field compatible, however the
register offset had switched between versions.

We introduce ABB LDO support in the form of a regulator which is
controlled by voltages denoting the desired Operating Performance
Point which is targeted. However, since ABB transition is part of OPP
change sequence, the sequencing required to ensure sane operation
w.r.t OPP change is left to the controlling driver (example: cpufreq
SoC driver) using standard regulator operations.

The driver supports all ABB modes and ability to override ABB LDO vset
control efuse based ABB mode detection etc.

Current implementation is heavily influenced by the original patch
series [2][3] from Mike Turquette. However, the current implementation
supports only device tree based information.

[1] http://www.ti.com/pdfs/wtbu/smartreflex_whitepaper.pdf
[2] http://marc.info/?l=linux-omap&m=134931341818379&w=2
[3] http://marc.info/?l=linux-arm-kernel&m=134931402406853&w=2

[nm@ti.com: co-developer]
Signed-off-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NAndrii.Tseglytskyi <andrii.tseglytskyi@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The ABx500 is capable of controlling three external regulator supplies.
Most commonly on and off are supported, but if an external regulator
chipset or power supply supports high-power and low-power mode settings,
we can control those too.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This patch is for new lp8755 regulator dirver and
several unsed variables were deleted and then test was done.

LP8755 :
The LP8755 is a high performance power management unit.It contains
six step-down DC-DC converters which can can be filexibly bundled
together in multiphase converters as required by application.
www.ti.com
Signed-off-by: NDaniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This driver supports the 4 DCDC and 8 LDO regulators on the AS3711 PMIC.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The MAXIM MAX8973 high-efficiency, three phase, DC-DC step-down
switching regulator delievers up to 9A of output current. Each
phase operates at a 2MHz fixed frequency with a 120 deg shift
from the adjacent phase, allowing the use of small magnetic
component.

Add regulator driver for this device.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>