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Add the mfd core driver which supports touchscreen
and ADC.
With this patch we are only adding infrastructure to
support the MFD clients.
Signed-off-by: Patil, Rachna <rachna@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The initilization of GPADC is moved from core driver to touch driver
with DT support.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Use irqdomain and allocating interrupts. It's necessary for supporting
DT mode.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

smsc ece1099 is a keyboard scan or gpio expansion device.
The patch create keypad and gpio expander child for this
multi function smsc driver.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

This is the DA9055 MFD core driver that instantiate all the dependent
component drivers and provides them the device access via I2C.

This patch is functionally tested on Samsung SMDK6410.
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Add RTC alarm interrupt details to TPS65910 MFD device list, to support
RTC alarm events.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

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

It can misreport.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

mfd: Add backlight as subdevice to the tps65217
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

The PRCMU has its own USB, Thermal, GPIO, Modem, HSI and RTC drivers,
amongst other things. This patch allows those subordinate devices to
use it as an interrupt controller as and when they are DT enabled.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

This fixes:

drivers/mfd/max8907.c:179:16: sparse: symbol 'max8907_pm_off' was not declared. Should it be static?
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

TI LP8788 PMU provides regulators, battery charger, ADC,
RTC, backlight driver and current sinks.

This MFD patch supports the I2C communication using the regmap,
the interrupt handling using the linear IRQ domain and
configurable platform data structures for each driver module.

 (Driver Architecture)

                                         < mfd devices >
  LP8788 HW  ..........  mfd  .......... regulator drivers
                I2C                      power supply driver
                IRQs                     iio adc driver
                                         rtc driver
                                         backlight driver
                                         current sink drivers

  o regulators    : LDOs and BUCKs
  o power supply  : Battery charger
  o iio adc       : Battery voltage/temperature
  o rtc           : RTC and alarm
  o backlight
  o current sink  : LED and vibrator

All MFD device modules are registered by LP8788 MFD core driver.
For sharing information such like the virtual IRQ number,
MFD core driver uses the resource structure.
Then each module can retrieve the specific IRQ number and detect it
in the IRQ thread.

Configurable platform data is handled in each driver module.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

The local timer clock is based on ARM subsystem clock. This patch
obtains a more exact value of that clock by reading PRCMU registers.
Using this increases the accuracy of the local timer events.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com>
Signed-off-by: Michel Jaouen <michel.jaouen@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Two variables named master_int and sleepseq_val, were just
declared without initialization. Pointers to these variables
were passed to mfd read function. After that these variables
were used for some of the logical operations.

Though logically there is nothing wrong, compiler is complaining
that the variables may be used uninitialized.

Hence fixing these warning messages by initializing them.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Add device tree handling to the palmas MFD. This takes the values
that can be set from platform data from the device tree nodes instead.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Add the platform data and data structures for children that shall be
added by a future set of commits.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Support for loading the twl4030 audio module via devicetree.
Sub devices for codec and vibra will be created as mfd devices once the
core MFD driver is loaded when the kernel is booted with a DT blob.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

twl-core has API to get the boot time configured HFCLK rate which has the
same rate as the audio MCLK.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

CFG_BOOT register's HFCLK_FREQ field hold information about the used HFCLK
frequency.
Add possibility for users to get the configured rate based on this
register.
This register was configured during boot, without it the chip would not
operate correctly, so we can trust on this information.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

To facilitate the device tree support the probe function need to be rearanged.
Small cleanup in the APLL frequency selection part as well.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

To clean up the module probe and remove functions.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Place the MODULE_* lines in the same block and add MODULE_DESCRIPTION.
Rearange the platform_driver structure at the same time.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Swith the palmas to linear domain in all cases so in future DT and non
DT cases will work the same.

With this patch children no longer need IRQ resources as it's easier
for them to use regmap_get_virq. So we can remove the resources
definitions.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Improve the error exit path so that we correctly de-allocate resources
that have been allocated upto the point where error occurs.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Provide a compatible string for the AB8500 CODEC to aid in
configuration property look-up from its associated Device Tree
node.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

commit e7c706b1

 migrated the allocation
of struct mc13xxx to devm_* functions, but left a kfree(mc13xxx) in the
mc13xxx_common_init error path. Remove it to prevent memory corruption.
Signed-off-by: Andreas Pretzsch <apr@cn-eng.de>
Reviewed-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Convert the struct i2c_msg initialization to C99 format. This makes
maintaining and editing the code simpler. Also helps once other fields
like transferred are added in future.

Thanks to Julia Lawall <julia.lawall@lip6.fr>  for automating the conversion
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

The TLL specific code such as channels clocks enable/disable,
initialization functions are removed from the USBHS core
driver. The hwmod of the usb tll is retrieved and omap device
build is performed to created the platform device for the
usb tll component.
Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

The usbhs driver invokes the enable/disable APIs of the
usb tll driver in the runtime resume/suspend callbacks
of the runtime get sync and put sync of the usbhs driver.
Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

The platform driver for the TLL component of the OMAP USB host controller
is implemented. Depending on the TLL hardware revision , the TLL channels
are configured. The USB HS core driver uses this driver through exported
APIs from the TLL platform driver.
usb_tll_enable and usb_tll_disble are the exported APIs of the USB TLL
platform driver.
Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Sparse complains:

  CHECK   drivers/power/88pm860x_battery.c
drivers/power/88pm860x_battery.c:128:5: warning: symbol 'array_soc' was not declared. Should it be static?
  CHECK   drivers/power/88pm860x_charger.c
drivers/power/88pm860x_charger.c:640:3: warning: symbol 'pm860x_irq_descs' was not declared. Should it be static?
  CHECK   drivers/mfd/88pm860x-core.c
drivers/mfd/88pm860x-core.c:803:53: warning: incorrect type in assignment (different base types)
drivers/mfd/88pm860x-core.c:803:53:    expected struct charger_regulator *charger_regulators
drivers/mfd/88pm860x-core.c:803:53:    got struct regulator_bulk_data static [toplevel] *

The issues are minor, except for the last one. We seemed to use
'regulator_bulk_data' struct (just as charger manager documentation
wrongly tells us), but in real it should have been
'struct charger_regulator'. The only reason that it worked is
because both 'supply' and 'regulator_name' struct members are the
first in these structs. :-)
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>

There are charger and battery measurement feature for 88pm860x PMIC.

For charger, it can support pre-charge with small current when battery is
nearly exausted and then changed into fast-charge with CC&CV mode.

For battery monitor, it can support battery measurement such as
vbat,vsys,vchg and ibat etc,it can aslo accumulating the Coulomb value
charged or discharged from battery based on Conlomb Counter, we use it
to estimate battery capacity.
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>

Remove redundant check in is_volatile_reg().
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Move probe() and other functions from 88pm860x-i2c.c to 88pm860x-core.c.
Since it could benefit to handle DT information.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Since PREG regulator is the only one regulator in 88PM8606, and other
regulators are in 88PM8607. Checking resource as identifying regulator
is not a good way. We can use NULL resource to indentify PREG regulator.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Remove array in parent's platform data. Use struct regulator_init_data
as regulator device's platform data directly. So a lot of pdata are
added into parent's platform data. And voltage out register offset
is used as IORESOURCE_REG to distinguish different regualtor devices.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Remove the register offset definition. All these register offset
are transfered as IORESOURCE_REG resources.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Add needed platform data structure and code to be able to load
the GPO child of twl6040.
Update the devicetree binding documentation at the same time.
Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>