26 Nov, 2014
2 commits
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Fix rts5227&5249 failed send buffer cmd after suspend,
PM_CTRL3 should reset before send any buffer cmd after suspend.
Otherwise, buffer cmd will failed, this will lead resume fail.Signed-off-by: Micky Ching
Signed-off-by: Lee Jones -
The HLCDC IP available on some Atmel SoCs (i.e. at91sam9n12, at91sam9x5
family or sama5d3 family) exposes 2 subdevices:
- a display controller (controlled by a DRM driver)
- a PWM chipThe MFD device provides a regmap and several clocks (those connected
to this hardware block) to its subdevices.This way concurrent accesses to the iomem range are handled by the regmap
framework, and each subdevice can safely access HLCDC registers.Signed-off-by: Boris Brezillon
Tested-by: Anthony Harivel
Tested-by: Ludovic Desroches
Signed-off-by: Lee Jones
11 Nov, 2014
1 commit
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This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO
Master Adapter DLN-2. Details about the device can be found here:https://www.diolan.com/i2c/i2c_interface.html.
Information about the USB protocol can be found in the Programmer's
Reference Manual [1], see section 1.7.Because the hardware has a single transmit endpoint and a single
receive endpoint the communication between the various DLN2 drivers
and the hardware will be muxed/demuxed by this driver.Each DLN2 module will be identified by the handle field within the DLN2
message header. If a DLN2 module issues multiple commands in parallel
they will be identified by the echo counter field in the message header.The DLN2 modules can use the dln2_transfer() function to issue a
command and wait for its response. They can also register a callback
that is going to be called when a specific event id is generated by
the device (e.g. GPIO interrupts). The device uses handle 0 for
sending events.[1] https://www.diolan.com/downloads/dln-api-manual.pdf
Signed-off-by: Octavian Purdila
Reviewed-by: Johan Hovold
Signed-off-by: Lee Jones
26 Sep, 2014
4 commits
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The Qualcomm SPMI PMIC chips are components used with the
Snapdragon 800 series SoC family. This driver exists
largely as a glue mfd component, it exists to be an owner
of an SPMI regmap for children devices described in
device tree.Signed-off-by: Josh Cartwright
Signed-off-by: Stanimir Varbanov
Signed-off-by: Lee Jones -
This adds driver to support HiSilicon Hi6421 PMIC. Hi6421 includes multi-
functions, such as regulators, codec, ADCs, Coulomb counter, etc.
This driver includes core APIs _only_.Drivers for individul components, like voltage regulators, are
implemented in corresponding driver directories and files.Registers in Hi6421 are memory mapped, so using regmap-mmio API.
Signed-off-by: Guodong Xu
Signed-off-by: Lee Jones -
The RK808 chip is a power management IC for multimedia and handheld
devices. It contains the following components:- Regulators
- RTC
- ClkoutThe RK808 core driver is registered as a platform driver and provides
communication through I2C with the host device for the different
components.Signed-off-by: Chris Zhong
Signed-off-by: Zhang Qing
Tested-by: Heiko
Signed-off-by: Lee Jones -
Ricoh RN5T618 is a power management IC which integrates 3 step-down
DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
fuel gauge, ADC, GPIOs and a watchdog timer.This commit adds a MFD core driver to support the I2C communication
with the device.Signed-off-by: Beniamino Galvani
Signed-off-by: Lee Jones
24 Sep, 2014
1 commit
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The MEN 14F021P00 Board Management Controller provides an
I2C interface to the host to access the feature implemented in the BMC.
The BMC is a PIC Microntroller assembled on CPCI Card from MEN Mikroelektronik
and on a few Box/Display Computer.Added MFD Core driver, supporting the I2C communication to the device.
The MFD driver currently supports the following features:
- Watchdog
- LEDs
- Hwmon (voltage monitoring)Signed-off-by: Andreas Werner
Signed-off-by: Lee Jones
21 Jul, 2014
1 commit
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By using the generic IRQ support in the Register map API, it
is possible to get rid max77686-irq.c and simplify the code.Suggested-by: Krzysztof Kozlowski
Signed-off-by: Javier Martinez Canillas
Reviewed-by: Doug Anderson
Tested-by: Doug Anderson
Signed-off-by: Lee Jones
09 Jul, 2014
1 commit
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…c-3.17' into ibs-for-mfd-merged
17 Jun, 2014
2 commits
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This patch provides chip-specific support for Crystal Cove. Crystal
Cove is the PMIC in Baytrail-T platform.Also adds Intel SoC PMIC support to the build files.
Signed-off-by: Yang, Bin
Signed-off-by: Zhu, Lejun
Signed-off-by: Lee Jones -
This patch modifies mfd driver to use regmap for handling interrupts.
It allows to simplify irq handling process. This modifications needed
to make small changes in function drivers, which use interrupts.Signed-off-by: Robert Baldyga
Reviewed-by: Krzysztof Kozlowski
Acked-by: Chanwoo Choi
Signed-off-by: Lee Jones
07 Jun, 2014
1 commit
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Pull MFD updates from Lee Jones:
"Changes to existing drivers:
- increase DT coverage: arizona, mc13xxx, stmpe-i2c, syscon,
sun6i-prcm
- regmap use of and/or clean-up: tps65090, twl6040
- basic renaming: max14577
- use new cpufreq helpers: db8500-prcmu
- increase regulator support: stmpe, arizona, wm5102
- reduce legacy GPIO overhead: stmpe
- provide necessary remove path: bcm590xx
- expand sysfs presence: kempld
- move driver specific code out to drivers: rtc-s5m, arizona
- clk handling: twl6040
- use managed (devm_*) resources: ipaq-micro
- clean-up/remove unused/duplicated code: tps65218, sec, pm8921,
abx500-core, db8500-prcmu, menelaus
- build/boot/sematic bug fixes: rtsx_usb, stmpe, bcm590xx, abx500,
mc13xxx, rdc321x-southbridge, mfd-core, sec, max14577, syscon,
cros_ec_spi
- constify stuff: sm501, tps65910, tps6507x, tps6586x, max77686,
max8997, kempld, max77693, max8907, rtsx_usb, db8500-prcmu,
max8998, wm8400, sec, lp3943, max14577, as3711, omap-usb-host,
ipaq-microSupport for new devices:
- add support for max77836 into max14577
- add support for tps658640 into tps6586x
- add support for cros-ec-i2c-tunnel into cros_ec
- add new driver for rtsx_usb_sdmmc and rtsx_usb_ms
- add new driver for axp20x
- add new driver for sun6i-prcm
- add new driver for ipaq-micro"* tag 'mfd-for-linus-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (77 commits)
mfd: wm5102: Correct default for LDO Control 2 register
mfd: menelaus: Use module_i2c_driver
mfd: tps65218: Terminate of match table
mfd: db8500-prcmu: Remove check for CONFIG_DBX500_PRCMU_DEBUG
mfd: ti-keystone-devctrl: Add bindings for device state control
mfd: palmas: Format the header file
mfd: abx500-core: Remove unused function abx500_dump_all_banks()
mfd: arizona: Correct addresses of always-on trigger registers
mfd: max14577: Cast to architecture agnostic data type
i2c: ChromeOS EC tunnel driver
mfd: cros_ec: Sync to the latest cros_ec_commands.h from EC sources
mfd: cros_ec: spi: Increase cros_ec_spi deadline from 5ms to 100ms
mfd: cros_ec: spi: Make the cros_ec_spi timeout more reliable
mfd: cros_ec: spi: Add mutex to cros_ec_spi
mfd: cros_ec: spi: Calculate delay between transfers correctly
mfd: arizona: Correct error message for addition of main IRQ chip
mfd: wm8997: Add registers for high power mode
mfd: arizona: Add MICVDD to mapped regulators
mfd: ipaq-micro: Make mfd_cell array const
mfd: ipaq-micro: Use devm_ioremap_resource()
...
03 Jun, 2014
3 commits
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This adds a driver for the Atmel Microcontroller found on the
iPAQ h3xxx series. This device handles some keys, the
touchscreen, and the battery monitoring.This is a port of a driver from handhelds.org 2.6.21 kernel,
written by Alessandro Gardich based on Andrew Christians
original HAL-driver. It has been heavily cleaned and
converted to mfd-core by Dmitry Artamonow and rewritten
again for the v3.x series kernels by Linus Walleij,
bringing back some of the functionality lost from Andrew's
original driver.Acked-by: Greg Kroah-Hartman
Signed-off-by: Alessandro Gardich
Signed-off-by: Dmitry Artamonow
Signed-off-by: Linus Walleij
Signed-off-by: Lee Jones -
The PRCM (Power/Reset/Clock Management) block exposes several subdevices
in different subsystems (clk, reset ...)Add basic support for the PRCM unit with clk (AR100, AHB0, and APB0 clks)
and reset controller subdevices.Other subdevices might be added later (if needed).
Signed-off-by: Boris BREZILLON
Acked-by: Maxime Ripard
Signed-off-by: Lee Jones -
This patch introduces the preliminary support for PMICs X-Powers AXP202
and AXP209. The AXP209 and AXP202 are the PMUs (Power Management Unit)
used by A10, A13 and A20 SoCs and developed by X-Powers, a sister company
of Allwinner.The core enables support for two subsystems:
- PEK (Power Enable Key)
- RegulatorsSigned-off-by: Carlo Caione
Signed-off-by: Lee Jones
16 May, 2014
2 commits
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This patch - finally, after over 6 months! :-( - addresses
Samuel's request to split the vexpress-sysreg driver into
smaller portions and define the device in a form of MFD
cells:* LEDs code has been completely removed and replaced with
"gpio-leds" nodes in the tree (referencing dedicated
GPIO subnodes in sysreg - bindings documentation updated);
this also better fits the reality as some variants of the
motherboard don't have all the LEDs populated* syscfg bridge code has been extracted into a separate
driver (placed in drivers/misc for no better place)* all the ID & MISC registers are defined as sysconf
making them available for other drivers should they need
to use them (and also to the user via /sys/kernel/debug/regmap
which can be helpful in platform debugging)Signed-off-by: Pawel Moll
Acked-by: Lee Jones -
Components of the Versatile Express platform (configuration
microcontrollers on motherboard and daughterboards in particular)
talk to each other over a custom configuration bus. They
provide miscellaneous functions (from clock generator control
to energy sensors) which are represented as platform devices
(and Device Tree nodes). The transactions on the bus can
be generated by different "bridges" in the system, some
of which are universal for the whole platform (for the price
of high transfer latencies), others restricted to a subsystem
(but much faster).Until now drivers for such functions were using custom "func"
API, which is being replaced in this patch by regmap calls.
This required:* a rework (and move to drivers/bus directory, as suggested
by Samuel and Arnd) of the config bus core, which is much
simpler now and uses device model infrastructure (class)
to keep track of the bridges; non-DT case (soon to be
retired anyway) is simply covered by a special device
registration function* the new config-bus driver also takes over device population,
so there is no need for special matching table for
of_platform_populate nor "simple-bus" hack in the arm64
model dtsi file (relevant bindings documentation has
been updated); this allows all the vexpress devices
fit into normal device model, making it possible
to remove plenty of early inits and other hacks in
the near future* adaptation of the syscfg bridge implementation in the
sysreg driver, again making it much simpler; there is
a special case of the "energy" function spanning two
registers, where they should be both defined in the tree
now, but backward compatibility is maintained in the code* modification of the relevant drivers:
* hwmon - just a straight-forward API change
* power/reset driver - API change
* regulator - API change plus error handling
simplification
* osc clock driver - this one required larger rework
in order to turn in into a standard platform driverSigned-off-by: Pawel Moll
Acked-by: Mark Brown
Acked-by: Lee Jones
Acked-by: Guenter Roeck
Acked-by: Mike Turquette
19 Mar, 2014
5 commits
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The tnetv107x platform is getting removed, so this driver
is not needed any more.Signed-off-by: Arnd Bergmann
Acked-by: Sekhar Nori
Acked-by: Kevin Hilman
Signed-off-by: Lee Jones -
Add a driver for the BCM590xx PMU multi-function devices. The driver
initially supports regmap initialization and instantiation of the
voltage regulator device function of the PMU.Signed-off-by: Matt Porter
Reviewed-by: Tim Kryger
Reviewed-by: Markus Mayer
Signed-off-by: Lee Jones -
The pm8xxx-irq.c code is practically mandatory given that the
pm8921-core driver will WARN about it missing and the Kconfig
marks it as default y when a PM8xxx chips is enabled. The only
reason the file was split out was because we planned to support
other pm8xxx chips with different pm8xxx-core.c files. Now that
we have DT on ARM this isn't necessary because we should be able
to support all the ssbi based PM8xxx chips in one driver and one
file with no data bloat. Let's move this code into the only
driver that uses it right now (pm8921) so that it's always compiled when
needed. In the future we can rename pm8921-core.c to something
more generic.Signed-off-by: Stephen Boyd
Signed-off-by: Lee Jones -
Realtek USB card reader provides a channel to transfer command or data to flash
memory cards. This driver exports host instances for mmc and memstick subsystems
and handles basic works.Acked-by: Greg Kroah-Hartman
Signed-off-by: Roger Tseng
Signed-off-by: Lee Jones -
The TPS65218 chip is a power management IC for Portable Navigation Systems
and Tablet Computing devices. It contains the following components:- Regulators.
- Over Temperature warning and Shut down.This patch adds support for tps65218 mfd device. At this time only
the regulator functionality is made available.Signed-off-by: Keerthy
Signed-off-by: Lee Jones
18 Mar, 2014
1 commit
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This is a driver for an A/D converter, which belongs into
drivers/iio/adc.Signed-off-by: Sebastian Reichel
Acked-by: Jonathan Cameron
Signed-off-by: Lee Jones
21 Jan, 2014
2 commits
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LP3943 has 16 output pins which can be used as GPIO expander and PWM generator.
* Regmap I2C interface for R/W LP3943 registers
* Atomic operations for output pin assignment
The driver should check whether requested pin is available or not.
If the pin is already used, pin request returns as a failure.
A driver data, 'pin_used' is checked when gpio_request() and
pwm_request() are called. If the pin is available, then pin_used is set.
And it is cleared when gpio_free() and pwm_free().* Device tree support
Compatible strings for GPIO and PWM driver.
LP3943 platform data is PWM related, so parsing the device tree is
implemented in the PWM driver.Signed-off-by: Milo Kim
Signed-off-by: Lee Jones -
This patch adds max14577 core/irq driver to support MUIC(Micro USB IC)
device and charger device and support irq domain method to control
internal interrupt of max14577 device. Also, this patch supports DT
binding with max14577_i2c_parse_dt().The MAXIM 14577 chip contains Micro-USB Interface Circuit and Li+ Battery
Charger. It contains accessory and USB charger detection logic. It supports
USB 2.0 Hi-Speed, UART and stereo audio signals over Micro-USB connector.The battery charger is compliant with the USB Battery Charging Specification
Revision 1.1. It has also SFOUT LDO output for powering USB devices.Reviewed-by: Mark Brown
Signed-off-by: Chanwoo Choi
Signed-off-by: Krzysztof Kozlowski
Signed-off-by: Kyungmin Park
Signed-off-by: Lee Jones
23 Oct, 2013
2 commits
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The ams AS3722 is a compact system PMU suitable for mobile phones,
tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down
controller, 11 LDOs, RTC, automatic battery, temperature and
over-current monitoring, 8 GPIOs, ADC and a watchdog.Add MFD core driver for the AS3722 to support core functionality.
Acked-by: Stephen Warren
Signed-off-by: Laxman Dewangan
Signed-off-by: Florian Lobmaier
Signed-off-by: Lee Jones -
This adds a driver for the STw481x PMICs found in the Nomadik
family of platforms. This one uses pure device tree probing.
Print some of the OTP registers on boot and register a regulator
MFD child.Signed-off-by: Linus Walleij
Signed-off-by: Lee Jones
20 Aug, 2013
2 commits
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This patch adds a regmap irqchip for DA9063 IRQs. It depends on
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git tags/regmap-irq-ack-mask
Signed-off-by: Krystian Garbaciak
Signed-off-by: Philipp Zabel
Reviewed-by: Mark Brown
Signed-off-by: Samuel Ortiz -
This is MFD module providing access to registers and interrupts of DA906x
series PMIC. It is used by other functional modules, registered as MFD cells.
Driver uses regmap with paging to access extended register list. Register map
is divided into two pages, where the second page is used during initialisation.This module provides support to following functional cells:
- Regulators
- RTC
- HWMON
- OnKey (power key misc input device)
- Vibration (force-feedback input device)
- Watchdog
- LEDsSigned-off-by: Krystian Garbaciak
Signed-off-by: Philipp Zabel
Reviewed-by: Mark Brown
Signed-off-by: Samuel Ortiz
24 Jun, 2013
1 commit
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Add core MFD driver for the on-board PLD found on some Kontron embedded
modules. The PLD device may provide functions like watchdog, GPIO, UART
and I2C bus.The following modules are supported:
* COMe-bIP#
* COMe-bPC2 (ETXexpress-PC)
* COMe-bSC# (ETXexpress-SC T#)
* COMe-cCT6
* COMe-cDC2 (microETXexpress-DC)
* COMe-cPC2 (microETXexpress-PC)
* COMe-mCT10
* ETX-OHOriginally-From: Michael Brunner
Signed-off-by: Kevin Strasser
Acked-by: Guenter Roeck
Acked-by: Darren Hart
Acked-by: Thomas Gleixner
Signed-off-by: Samuel Ortiz
18 Jun, 2013
1 commit
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The wm8997 is a compact, high-performance audio hub CODEC with SLIMbus
interfacing, for smartphones, tablets and other portable audio devices
based on the Arizona platform.This patch integrates the wm8997 into the Arizona mfd.
Signed-off-by: Charles Keepax
Signed-off-by: Samuel Ortiz
12 Jun, 2013
1 commit
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There is no reason for ssbi to have its own top-level driver directory
when the only users of this interface are all MFD drivers. The only
mainline driver using it at the moment (PM8921) is marked broken and in
fact does not compile. I have verified that fixing the trivial build
breakage in pm8921 links in the new ssbi code just fine, but that
can be a separate patch.Signed-off-by: Arnd Bergmann
Acked-by: Greg Kroah-Hartman
Acked-by: Nicolas Pitre
Acked-by: David Brown
Signed-off-by: Samuel Ortiz
20 Apr, 2013
2 commits
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This patch adds all necessary header files and Kbuild plumbing for the
core driver for Silicon Laboratories Si476x series of AM/FM tuner
chips.The driver as a whole is implemented as an MFD device and this patch
adds a core portion of it that provides all the necessary
functionality to the two other drivers that represent radio and audio
codec subsystems of the chip.Acked-by: Hans Verkuil
Acked-by: Sam Ravnborg
Signed-off-by: Andrey Smirnov
Signed-off-by: Samuel Ortiz -
RTS5249 supports SD UHS-II interface.
In order to support SD UHS-II，the definitions of some internal
registers of RTS5249 have to be modified and are different from its
predecessors. So we need this patch to ensure RTS5249 can work, even
SD/MMC stack doesn't support UHS-II interface.Signed-off-by: Wei WANG
Signed-off-by: Samuel Ortiz
05 Apr, 2013
3 commits
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This uses a SPI bus to talk to the ChromeOS EC. The protocol
is defined by the EC and is fairly simple, with a length byte,
checksum, command byte and version byte (to permit easy creation
of new commands).Signed-off-by: Simon Glass
Signed-off-by: Samuel Ortiz -
This uses an I2C bus to talk to the ChromeOS EC. The protocol
is defined by the EC and is fairly simple, with a length byte,
checksum, command byte and version byte (to permit easy creation
of new commands).Signed-off-by: Simon Glass
Signed-off-by: Che-Liang Chiou
Signed-off-by: Samuel Ortiz -
This is the base EC implementation, which provides a high level
interface to the EC for use by the rest of the kernel. The actual
communcations is dealt with by a separate protocol driver which
registers itself with this interface.Interrupts are passed on through a notifier.
A simple message structure is used to pass messages to the
protocol driver.
Signed-off-by: Simon Glass
Signed-off-by: Che-Liang Chiou
Signed-off-by: Jonathan Kliegman
Signed-off-by: Luigi Semenzato
Signed-off-by: Olof Johansson
Signed-off-by: Vincent Palatin
Signed-off-by: Samuel Ortiz
14 Feb, 2013
1 commit
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Support new model RTS5227.
Signed-off-by: Roger Tseng
Reviewed-by: Wei WANG
Signed-off-by: Samuel Ortiz
17 Dec, 2012
1 commit
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Pull MFS update from Samuel Ortiz:
"This is the MFD patch set for the 3.8 merge window.We have several new drivers, most of the time coming with their sub
devices drivers:- Austria Microsystem's AS3711
- Nano River's viperboard
- TI's TPS80031, AM335x TS/ADC,
- Realtek's MMC/memstick card reader
- Nokia's retuWe also got some notable cleanups and improvements:
- tps6586x got converted to IRQ domains.
- tps65910 and tps65090 moved to the regmap IRQ API.
- STMPE is now Device Tree aware.
- A general twl6040 and twl-core cleanup, with moves to the regmap
I/O and IRQ APIs and a conversion to the recently added PWM
framework.
- sta2x11 gained regmap support.Then the rest is mostly tiny cleanups and fixes, among which we have
Mark's wm5xxx and wm8xxx patchset."Far amount of annoying but largely trivial conflicts. Many due to
__devinit/exit removal, others due to one or two of the new drivers also
having come in through another tree.* tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits)
mfd: tps6507x: Convert to devm_kzalloc
mfd: stmpe: Update DT support for stmpe driver
mfd: wm5102: Add readback of DSP status 3 register
mfd: arizona: Log if we fail to create the primary IRQ domain
mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ
mfd: tps80031: Add terminating entry for tps80031_id_table
mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask()
mfd: wm5102: Add tuning for revision B
mfd: arizona: Defer patch initialistation until after first device boot
mfd: tps65910: Fix wrong ack_base register
mfd: tps65910: Remove unused data
mfd: stmpe: Get rid of irq_invert_polarity
mfd: ab8500-core: Fix invalid free of devm_ allocated data
mfd: wm5102: Mark DSP memory regions as volatile
mfd: wm5102: Correct default for LDO1_CONTROL_2
mfd: arizona: Register haptics devices
mfd: wm8994: Make current device behaviour the default
mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ
mfd: Fix stmpe.c build when OF is not enabled
mfd: jz4740-adc: Use devm_kzalloc
...