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: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark 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: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark 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: Mark Brown <broonie@kernel.org>
This driver supports the 3 DCDC and 7 LDO regulators available on
Ricoh RN5T618 PMIC.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Mark 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: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Mark 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: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Mark 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: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Mark 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: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark 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: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark 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: Carlo Caione <carlo@caione.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Core:
- CONFIG_MMC_UNSAFE_RESUME=y is now default behavior.
- DT bindings for SDHCI UHS, eMMC HS200, high-speed DDR, at 1.8/1.2V.
- Add GPIO descriptor based slot-gpio card detect API.
Drivers:
- dw_mmc: Refactor SOCFPGA support as a variant inside dw_mmc-pltfm.c.
- mmci: Support HW busy detection on ux500.
- omap: Support MMC_ERASE.
- omap_hsmmc: Support MMC_PM_KEEP_POWER, MMC_PM_WAKE_SDIO_IRQ, (a)cmd23.
- rtsx: Support pre-req/post-req async.
- sdhci: Add support for Realtek RTS5250 controllers.
- sdhci-acpi: Add support for 80860F16, fix 80860F14/SDIO card detect.
- sdhci-msm: Add new driver for Qualcomm SDHCI chipset support.
- sdhci-pxav3: Add support for Marvell Armada 380 and 385 SoCs.
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Merge tag 'mmc-updates-for-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
"MMC highlights for 3.15:
Core:
- CONFIG_MMC_UNSAFE_RESUME=y is now default behavior
- DT bindings for SDHCI UHS, eMMC HS200, high-speed DDR, at 1.8/1.2V
- Add GPIO descriptor based slot-gpio card detect API
Drivers:
- dw_mmc: Refactor SOCFPGA support as a variant inside dw_mmc-pltfm.c
- mmci: Support HW busy detection on ux500
- omap: Support MMC_ERASE
- omap_hsmmc: Support MMC_PM_KEEP_POWER, MMC_PM_WAKE_SDIO_IRQ, (a)cmd23
- rtsx: Support pre-req/post-req async
- sdhci: Add support for Realtek RTS5250 controllers
- sdhci-acpi: Add support for 80860F16, fix 80860F14/SDIO card detect
- sdhci-msm: Add new driver for Qualcomm SDHCI chipset support
- sdhci-pxav3: Add support for Marvell Armada 380 and 385 SoCs"
* tag 'mmc-updates-for-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (102 commits)
mmc: sdhci-acpi: Intel SDIO has broken card detect
mmc: sdhci-pxav3: add support for the Armada 38x SDHCI controller
mmc: sdhci-msm: Add platform_execute_tuning implementation
mmc: sdhci-msm: Initial support for Qualcomm chipsets
mmc: sdhci-msm: Qualcomm SDHCI binding documentation
sdhci: only reprogram retuning timer when flag is set
mmc: rename ARCH_BCM to ARCH_BCM_MOBILE
mmc: sdhci: Allow for irq being shared
mmc: sdhci-acpi: Add device id 80860F16
mmc: sdhci-acpi: Fix broken card detect for ACPI HID 80860F14
mmc: slot-gpio: Add GPIO descriptor based CD GPIO API
mmc: slot-gpio: Split out CD IRQ request into a separate function
mmc: slot-gpio: Record GPIO descriptors instead of GPIO numbers
Revert "dts: socfpga: Add support for SD/MMC on the SOCFPGA platform"
mmc: sdhci-spear: use generic card detection gpio support
mmc: sdhci-spear: remove support for power gpio
mmc: sdhci-spear: simplify resource handling
mmc: sdhci-spear: fix platform_data usage
mmc: sdhci-spear: fix error handling paths for DT
mmc: sdhci-bcm-kona: fix build errors when built-in
...
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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Add support for S2MPA01 voltage and current regulator.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee 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: Matt Porter <mporter@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Mark 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: Balaji T K <balajitk@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Mark Brown <broonie@linaro.org>
Tested-by: Florian Vaussard <florian.vaussard@epfl.ch>
Tested-by: Stefan Roese <sr@denx.de>
Signed-off-by: Chris 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: Keerthy <j-keerthy@ti.com>
Signed-off-by: Mark 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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark 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: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Florian Lobmaier <florian.lobmaier@ams.com>
Signed-off-by: Mark 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: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark 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: Mark 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: Krystian Garbaciak <krystian.garbaciak@diasemi.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
I2C driver for the Dialog DA9210 Multi-phase 12A DC-DC Buck.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: David Dajun Chen <david.chen@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Add pfuze100 regulator driver.
Signed-off-by: Robin Gong <b38343@freescale.com>
Tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Mark 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: Yi Zhang <yizhang@marvell.com>
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Mark Brown <broonie@linaro.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: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Mark 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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark 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: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrii.Tseglytskyi <andrii.tseglytskyi@ti.com>
Signed-off-by: Mark 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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark 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: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
