The WM8994 has an interrupt controller which supports interrupts for
both CODEC and GPIO portions of the chip. Support this using genirq,
while allowing for systems that do not have an interrupt hooked up.

Wrapper functions are provided for the IRQ request and free to simplify
the code in consumer drivers when handling cases where IRQs are not
set up.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

This is the MFD driver for the DaVinci Voice codec, it has two clients:

* Voice codec interface
* Voice codec CQ93VC
Signed-off-by: NMiguel Aguilar <miguel.aguilar@ridgerun.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>
Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

commit 5fb4d38b ("mfd: Move WM831x to
generic IRQ") didn't take into account that genirq support depends on
GENERIC_HARDIRQS.

Additionally, 2.6.34-rc1 added:
  - commit 2afa62ea ("mfd: Use genirq in
    88pm860x").
  - commit 760e4518 ("mfd: Convert WM8350 to
    genirq").
  - commit 1f1cf8f9 ("mfd: Update irq handler
    in max8925")

Make all of them depend on GENERIC_HARDIRQS to avoid compile errors on
architectures that don't support genirq yet.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Enable the sh_mobile_sdhi mfd driver on SH-Mobile ARM
processors. While at it, make CONFIG_TMIO_MMC depend on
CONFIG_MFD_SH_MOBILE_SDHI.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Intel Poulsbo (SCH) chipset LPC bridge controller contains several
functions. Creating and MFD driver for the LPC bridge controller allows
simultaneous use of SMBus and GPIO interfaces on the SCH.
Signed-off-by: NDenis Turischev <denis@compulab.co.il>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Update thread irq handler. Simply the interface of using thread irq.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The WM8994 is a highly integrated ultra low power audio hub CODEC.
Since it includes on-board regulators and GPIOs it is represented
as a multi-function device, though the overwhelming majority of
the functionality is provided by the ASoC CODEC driver.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

htc-i2cpld should depend on GPIOLIB, otherwise there are many
build errors:

drivers/mfd/htc-i2cpld.c:50: error: field 'chip_out' has incomplete type
drivers/mfd/htc-i2cpld.c:54: error: field 'chip_in' has incomplete type
drivers/mfd/htc-i2cpld.c:243: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:243: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:278: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:278: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:282: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:282: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:315: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:322: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:322: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:467+: error: dereferencing pointer to incomplete type [19X]
drivers/mfd/htc-i2cpld.c:490: error: implicit declaration of function 'gpiochip_add'
drivers/mfd/htc-i2cpld.c:504: error: implicit declaration of function 'gpiochip_remove'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This reintroduces the entropy sampling of the AB3100 IRQ as the
IRQF_SAMPLE_RANDOM is going out according to the feature removal
schedule. I'm trying to do this the right way then, so CC:ing some
random people for a quick review. We add entropy for interrupt
events in the AB3100 which are truly random in nature, like
external cables being connected, voltages on batteries dropping
below certain ranges, ADC triggers or overheating.
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Cc: Robin Getz <rgetz@blackfin.uclinux.org>
Acked-by: NMatt Mackall <mpm@selenic.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This change introduces a driver for the HTC PLD chip found
on some smartphones, such as the HTC Wizard and HTC Herald.
It works through the I2C bus and acts as a GPIO extender.
Specifically:

 * it can have several sub-devices, each with its own I2C
   address
 * Each sub-device provides 8 output and 8 input pins
 * The chip attaches to one GPIO to signal when any of the
   input GPIOs change -- at which point all chips must be
   scanned for changes

This driver implements the GPIOs throught the kernel's
GPIO and IRQ framework.  This allows any GPIO-servicing
drivers to operate on htcpld pins, such as the gpio-keys
and gpio-leds drivers.
Signed-off-by: NCory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add subdevs in MAX8925. MAX8925 includes regulator, backlight and touch
components.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Basic Max8925 support, which is a power management IC from Maxim
Semiconductor.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Rename 88PM8607 to 88PM860X in both Makefile and Kconfig under mfd directory.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The genirq implementation does not allow modules to implement irq_chips
so the conversion of WM8350 to genirq means we can no longer allow the
driver to be built as a module.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Fix mfd/timberdale build error -- add depends GPIOLIB.

include/linux/spi/max7301.h:14: error: field 'chip' has incomplete type
build-r7353.out:make[3]: *** [drivers/mfd/timberdale.o] Error 1

Repairs

commit ff7a26e08a16bb31158d830dbf60db2ff47019ab
Author:     Richard R<C3><B6>jfors <richard.rojfors@pelagicore.com>
AuthorDate: Thu Feb 4 08:18:52 2010 -0300
Commit:     Mauro Carvalho Chehab <mchehab@redhat.com>
CommitDate: Fri Feb 5 12:25:37 2010 -0200

    V4L/DVB: mfd: Add support for the timberdale FPGA
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Richard Rojfors <richard.rojfors@pelagicore.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The timberdale FPGA is found on the Intel in-Vehicle Infotainment reference board
russelville.

The driver is a PCI driver which chunks up the I/O memory and distributes interrupts
to a number of platform devices for each IP inside the FPGA.
Signed-off-by: NRichard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Convert ARCH_OMAP24XX to ARCH_OMAP2
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch adds support for phoenix interrupt framework. New iInterrupt
status register A, B, C are introduced in Phoenix and are cleared on write.
Due to the differences in interrupt handling with respect to TWL4030,
twl6030-irq.c is created for TWL6030 PMIC
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NBalaji T K <balajitk@ti.com>
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This works around issues with allmodconfig where it won't propagate the
dependency from the WM831x core back to the I2C and MFD cores.  When
doing allmodconfig this causes WM831x to be omitted and ensures that in
normal builds the dependencies get shaken out.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The genirq infrastructure functions aren't currently exported,
preventing modular builds.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This remove the default 'y' selection of AB4500, currently everyone
enabling the SPI subsystem will get a copy of this driver.
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Base driver for Analog Devices ADP5520/ADP5501 MFD PMICs

Subdevs:
LCD Backlight   : drivers/video/backlight/adp5520_bl.c
LEDs            : drivers/led/leds-adp5520.c
GPIO            : drivers/gpio/adp5520-gpio.c (ADP5520 only)
Keys            : drivers/input/keyboard/adp5520-keys.c (ADP5520 only)
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

88PM8607 depends on I2C and MFD_CORE. Since 88PM8607 is built-in
kernel, it also requires that I2C and MFD_CORE are built-in
kernel also.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The WM8320 is an integrated power management subsystem providing
voltage regulators, RTC, watchdog and other functionality. The
WM8320 is derived from the WM831x and therefore shares most of
the driver code with the WM831x.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This adds core driver support for AB4500 mixed signal
multimedia & power management chip. This connects to U8500
on the SSP (pl022) and exports read/write functions for
the device to get access to this chip. This also registers
the client devices and sets the parent.
Signed-off-by: Nsrinidhi kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: NAndrea Gallo <andrea.gallo@stericsson.com>
Reviewed-by: NMark Brown <broonie@sirena.org.uk>
Reviewed-by: NJean-Christophe <plagnioj@jcrosoft.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This adds a core driver for 88PM8607 found in Marvell DKB development
platform. This driver is a proxy for all accesses to 88PM8607
sub-drivers which will be merged on top of this one, RTC, regulators,
battery and so on.

This chip is manufactured by Marvell.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

New MFD child to twl4030 MFD device.

Reason for the twl4030_codec MFD: the vibra control is actually in the codec
part of the twl4030. If both the vibra and the audio functionality is needed
from the twl4030 at the same time, than they need to control the codec power
and APLL at the same time without breaking the other driver.
Also these two has to be able to work without the need for the other driver.

This MFD device will be used by the drivers, which needs resources
from the twl4030 codec like audio and vibra.

The platform specific configuration data is passed along to the
child drivers (audio, vibra).
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This patch adds an MFD driver for the SuperH Mobile SDHI
hardware block. At this point the driver simply wraps the
tmio-mmc driver with some clock code. In the future this
driver is the place to put SDHI specific hotplug code.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

New MFD child to twl4030 MFD device.

Reason for the twl4030_codec MFD: the vibra control is actually in the codec
part of the twl4030. If both the vibra and the audio functionality is needed
from the twl4030 at the same time, than they need to control the codec power
and APLL at the same time without breaking the other driver.
Also these two has to be able to work without the need for the other driver.

This MFD device will be used by the drivers, which needs resources
from the twl4030 codec like audio and vibra.

The platform specific configuration data is passed along to the
child drivers (audio, vibra).
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The TWL4030/5030 family of multifunction devices allows board-specific
control of the the various regulators, clock and reset lines through
'scripts' that are loaded into its memory. This allows for Dynamic Power
Switching (DPS).

Implement board-independent core support for DPS that is then used by
board-specific code to load custom DPS scripts.
Signed-off-by: NAmit Kucheria <amit.kucheria@verdurent.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This adds the ability to read out OTP (One-Time Programmable)
registers in the AB3100 MFD ASIC. It's a simple sysfs file you
can cat to prompt. The OTP registers of the AB3100 are used to
store various device-unique information such as customer ID,
product flags and the 3GPP standard IMEI (International Mobile
Equipment Indentity) number.
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This driver provides the core Freescale MC13783 support. It
registers the client platform_devices and provides access
to the A/D converter.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This enables the ASIC3's DS1WM MFD cell, supported by the ds1wm driver.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

More with the grammar.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

The PCAP Asic as present on EZX phones is a multi function device with
voltage regulators, ADC, touch screen controller, RTC, USB transceiver,
leds controller, and audio codec.

It has two SPI ports, typically one is connected to the application
processor and another to the baseband, this driver provides read/write
functions to its registers, irq demultiplexer and ADC
queueing/abstraction.

This chip is used on a lot of Motorola phones, it was manufactured by TI
as a custom product with the name PTWL93017, later this design evolved
into the ATLAS PMIC from Freescale (MC13783).
Signed-off-by: NDaniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This adds a core driver for the AB3100 mixed-signal circuit
found in the ST-Ericsson U300 series platforms. This driver
is a singleton proxy for all accesses to the AB3100
sub-drivers which will be merged on top of this one, RTC,
regulators, battery and system power control, vibrator,
LEDs, and an ALSA codec.
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Reviewed-by: NMike Rapoport <mike@compulab.co.il>
Reviewed-by: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This patch makes htc-pasic3 register the DS1WM and LED cell drivers
through the MFD core infrastructure instead of allocating the platform
devices manually. It also calculates the bus_shift parameter from the
memory resource size.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@openedhand.com>

Signed-off-by: NMatt LaPlante <kernel1@cyberdogtech.com>
Acked-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

What the PCF05633 calls as a 'GPIO' is much more than the GPIO in the linux
sense and there are only 4 of them - which means, the gpiolib is not used
here.
Signed-off-by: NBalaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Signed-off-by: NSamuel Ortiz <sameo@openedhand.com>