The asic3 mfd driver currently implements an irq_chip for handling
interrupts; due to how irq_chip handling is done, it's necessary for the
irq_chip methods to be invoked from hardirq context, even on a a
real-time kernel.  Because the spinlock_t type becomes a "sleeping"
spinlock w/ RT kernels, it is not suitable to be used with irq_chips.

A quick audit of the operations under the lock reveal that they do only
minimal, bounded work, and are therefore safe to do under a raw spinlock.
Signed-off-by: Julia Cartwright <julia@ni.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

For better understanding of relationship between headers and modules
rename:
	intel_bxtwc.h -> intel_soc_pmic_bxtwc.h

While here, remove file name from the file itself.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

There is no need to include intel_soc_pmic.h into header which doesn't
require it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Currently, we specify the timeout in terms of the number of polls but it
is more clear from a user of the functions perspective to specify the
timeout directly in milliseconds, as such update the function to these new
semantics.

Additionally, arizona_poll_reg essentially hard-codes
regmap_read_poll_timeout, update the implementation to use
regmap_read_poll_timeout. We still keep arizona_poll_reg around as
regmap_read_poll_timeout is a macro so rather than expand this for each
caller keep it wrapped in arizona_poll_reg.

Whilst we are doing this make the timeouts a little more generous as
the previous system had a bit more slack as it was done as a delay per
iteration of the loop whereas regmap_read_poll_timeout compares ktime's.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Register addresses are normally displayed in hex throughout the Arizona
driver. Update the arizona_poll_reg function to follow this convention.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

arizona_poll_reg already returns ETIMEDOUT if we don't see the expected
register changes before the time out, so remove pointless local setting of
ETIMEDOUT.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

To enable eventual removal of pr_warning

This makes pr_warn use consistent for drivers/mfd

Prior to this patch, there were 4 uses of pr_warning and
9 uses of pr_warn in drivers/mfd
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Align the placement as which the mfd_cell of LED is defined as the other
members done on the structure.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch adds description for LED as the sub-module on MT6397/MT6323
multifunction device.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The CHRG_CTRL1 and CHRG_CTRL2 registers are made for controlling
different battery charging settings such as the constant current charge
value.

The AXP22X also have a third register CHRG_CTRL3 which has settings for
battery charging too.

This adds the CHRG_CTRL1, CHRG_CTRL2 and CHRG_CTRL3 registers to the
list of writeable registers for AXP20X and AXP22X PMICs.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The X-Powers AXP20X and AXP22X PMICs expose the status of AC power
supply.

This adds the AC power supply driver to the MFD cells of the AXP22X
PMICs.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-By: Sebastian Reichel <sre@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This adds the AXP20X/AXP22x ADCs driver to the mfd cells of the AXP209,
AXP221 and AXP223 MFD.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The registers 0x56 and 0x57 of AXP22X PMIC store the value of the
internal temperature of the PMIC.

This patch modifies the name of these registers from AXP22X_PMIC_ADC_H/L
to AXP22X_PMIC_TEMP_H/L so their purpose is clearer.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The SPI interface is mostly a copy/paste from the I2C interface with some
minor renaming for consistency. "Client" is an I2C specific term that
was left in the SPI remove path, rename this here.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch adds documentation for the Altera A10-SR Reset
Controller DT bindings.
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add Peripheral PHY Reset Controller to the Arria10
Development Kit System Resource Chip's MFD.
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

After commit 028af594 ("mfd: intel-lpss: Pass SDA hold time to
I2C host controller driver") the driver still has a non-used variable.

Remove it here.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This is a sucky change to bump up the time we'll wait for the EC.  Why
is it sucky?  If 200ms for a transfer is a common thing it will have a
massively bad impact on keyboard responsiveness.

It still seems like a good idea to do this, though, because we have a
gas gauge that claims that in an extreme case it could stretch the i2c
clock for 144ms.  It's not a common case so it shouldn't affect
responsiveness, but it can happen.  It's much better to have a single
slow keyboard response than to start returning errors when we don't
have to.

In newer EC designs we should probably implement a virtual battery to
respond to the kernel to insulate the kernel from these types of
issues.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

TI LMU (Lighting Management Unit) driver supports lighting devices below.

  LM3532, LM3631, LM3632, LM3633, LM3695 and LM3697.

LMU devices have common features.
  - I2C interface for accessing device registers
  - Hardware enable pin control
  - Backlight brightness control
  - Notifier for hardware fault monitoring
  - Regulators for LCD display bias

It contains fault monitor, backlight, LED and regulator driver.

LMU fault monitor
-----------------
  LM3633 and LM3697 provide hardware monitoring feature.
  It enables open or short circuit detection.
  After monitoring is done, each device should be re-initialized.
  Notifier is used for this case.
  Separate patch for 'ti-lmu-fault-monitor' will be sent later.

Backlight
---------
  It's handled by TI LMU backlight consolidated driver and
  chip dependent data. Separate patchset will be sent later.

LED indicator
-------------
  LM3633 has 6 indicator LEDs. Programmable dimming pattern is also
  supported. Separate patch for 'leds-lm3633' will be sent later.

Regulator
---------
  LM3631 has 5 regulators for the display bias.
  LM3632 supports 3 regulators. One consolidated driver enables it.
  The lm363x regulator driver is already upstreamed.
Signed-off-by: Milo Kim <milo.kim@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch describes overall binding for TI LMU MFD devices.
Signed-off-by: Milo Kim <milo.kim@ti.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

commit b101829a029a ("mfd: axp20x: Fix AXP806 access errors on cold boot")
was intended to fix the case where a board uses an AXP806 in slave mode,
but the boot loader leaves it in master mode for lack of AXP806 support.
But now the driver breaks on boards where the PMIC is operating in master
mode. This patch lets the driver use the new device tree property
"xpowers,master-mode" to set the correct operating mode for the board.

Fixes: 8824ee85 ("mfd: axp20x: Add support for AXP806 PMIC")
Signed-off-by: Rask Ingemann Lambertsen <rask@formelder.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

commit b101829a029a ("mfd: axp20x: Fix AXP806 access errors on cold boot")
was intended to fix the case where a board uses an AXP806 in slave mode,
but the boot loader leaves it in master mode for lack of AXP806 support.
But now the driver breaks on boards where the PMIC is operating in master
mode. To let the device tree describe which mode of operation is needed,
this patch introduces a new property "xpowers,master-mode".

Fixes: 204ae296 ("mfd: axp20x: Add bindings for AXP806 PMIC")
Signed-off-by: Rask Ingemann Lambertsen <rask@formelder.dk>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Since commit 845c8770 ("i2c / ACPI: Assign IRQ for devices that have
GpioInt automatically") I2C core assigns interrupt line to I2C slave
devices with regarding to GpioInt() resources.

There is no need to repeat this in the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

STM32 timers register bank size is 0x400. Fix regmap max_register.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

It is a debugging statement so make it be issued only then.

No functionality change.
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

At least two different omap3630/3730 boards booting from MMC1
fail to reboot if the "ti,twl4030-power-idle-osc-off" or
"ti,twl4030-power-idle" compatible flags are set.  This patch will
keep the vmmc1 powered up during reboot allowing the bootloader
to load.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add missing of_platform_depopulate() upon driver removal.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patches adds the first minimal support to the upstream Linux tree.
Signed-off-by: Priyalee Kushwaha <priyalee.kushwaha@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch installs an ACPI GPE handler for LID0 ACPI device to indicate
ACPI core that this GPE should stay enabled for lid to work in suspend
to idle path.
Signed-off-by: Archana Patni <archana.patni@intel.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Merge branches 'ib-mfd-gpio-4.12', 'ib-mfd-iio-input-4.12', 'ib-mfd-input-4.12', 'ib-mfd-leds-4.12', 'ib-mfd-phy-4.12' and 'ib-mfd-pinctrl-samsung-4.12' into ibs-for-mfd-merged

Motorola CPCAP is a PMIC found in multiple smartphones.
This driver adds support for the power/on button and has
been tested in Droid 4.
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

CPCAP can sense if IRQ is currently set or not. This
functionality is required for a few subdevices, such
as the power button and usb phy modules.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This fixes compilation for files, that try to include the
cpcap header in alphabetically sorted #include lists.
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch adds support for retention control for Exynos5433 SoCs. Three
groups of pins has been defined for retention control: common shared group
for ALIVE, CPIF, eSE, FINGER, IMEM, NFC, PERIC, TOUCH pin banks and
separate control for FSYS and AUD pin banks, for which PMU retention
registers match whole banks.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

When pin controller device is a part of power domain, there is no guarantee
that the power domain was not turned off and then on during boot process
before probing of the pin control driver. If it happened, then pin control
driver should ensure that pad retention is turned off during its probe call.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

The bindings, which are now used in MFD, need also to be
documented in the MFD binding document.
Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Since the driver has been split into MFD there is no reason for it to
stay, so remove it.
Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add 4-wire/5-wire touchscreen controller.
Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add support for sixteen-channel 12-bit resolution ADC and its functions,
which include general-purpose ADC readings, battery voltage measurement,
and die temperature measurement.
Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add core files for low resolution analog-to-digital converter (mxs-lradc)
MFD driver.
Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>