Since this driver only has a dependency on ARCH_SUNXI just because it
doesn't make any sense to run it on something else, we can definitely
enable it through COMPILE_TEST as well to get some build coverage.
Signed-off-by: NMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This API is primarily used through DT entries, but two architectures
and two drivers call it directly.  So instead of selecting the config
symbol for random architectures pull it in implicitly for the actual
users.  Also rename the Kconfig option to describe the feature better.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS
Acked-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The QMX86 is a PLD present on some TQ-Systems ComExpress modules. It
provides 1 or 2 I2C bus masters, 8 GPIOs and a watchdog timer. Add an
MFD which will instantiate the individual drivers.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Select IRQ_DOMAIN_HIERARCHY for pm8xxx in Kconfig since this driver uses
the version 2 IRQ interfaces. IRQ_DOMAIN_HIERARCHY selects IRQ_DOMAIN,
so it can be removed from here.
Signed-off-by: NBrian Masney <masneyb@onstation.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Currently the sm501 mfd driver can be compiled without any dependencies,
but through the use of dma_declare_coherent it really depends on
having DMA and iomem support.  Normally we don't explicitly require DMA
support as we have stubs for it if on UML, but in this case the driver
selects support for dma_declare_coherent and thus also requires
memmap support.  Guard this by an explicit dependency.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Acked-by: NLee Jones <lee.jones@linaro.org>

Lochnagar is an evaluation and development board for Cirrus
Logic Smart CODEC and Amp devices. It allows the connection of
most Cirrus Logic devices on mini-cards, as well as allowing
connection of various application processor systems to provide a
full evaluation platform. This driver supports the board
controller chip on the Lochnagar board. Audio system topology,
clocking and power can all be controlled through the Lochnagar
controller chip, allowing the device under test to be used in
a variety of possible use cases.

As the Lochnagar is a fairly complex device this MFD driver
allows the drivers for the various features to be bound
in. Initially clocking, regulator and pinctrl will be added as
these are necessary to configure the system. But in time at least
audio and voltage/current monitoring will also be added.
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

INTEL_SOC_PMIC, INTEL_SOC_PMIC_CHTWC and MFD_TPS68470 select the
I2C_DESIGNWARE_PLATFORM without its dependencies making it possible to see
warning and build error like below:

WARNING: unmet direct dependencies detected for I2C_DESIGNWARE_PLATFORM
  Depends on [n]: I2C [=y] && HAS_IOMEM [=y] && (ACPI [=y] && COMMON_CLK [=n] || !ACPI [=y])
  Selected by [y]:
  - MFD_TPS68470 [=y] && HAS_IOMEM [=y] && ACPI [=y] && I2C [=y]=y

/usr/bin/ld: drivers/i2c/busses/i2c-designware-platdrv.o: in function `dw_i2c_plat_resume':
i2c-designware-platdrv.c:(.text+0x62): undefined reference to `i2c_dw_prepare_clk'
/usr/bin/ld: drivers/i2c/busses/i2c-designware-platdrv.o: in function `dw_i2c_plat_suspend':
i2c-designware-platdrv.c:(.text+0x9a): undefined reference to `i2c_dw_prepare_clk'
/usr/bin/ld: drivers/i2c/busses/i2c-designware-platdrv.o: in function `dw_i2c_plat_probe':
i2c-designware-platdrv.c:(.text+0x41c): undefined reference to `i2c_dw_prepare_clk'
/usr/bin/ld: i2c-designware-platdrv.c:(.text+0x438): undefined reference to `i2c_dw_read_comp_param'
/usr/bin/ld: i2c-designware-platdrv.c:(.text+0x545): undefined reference to `i2c_dw_probe'
/usr/bin/ld: i2c-designware-platdrv.c:(.text+0x727): undefined reference to `i2c_dw_probe_slave'

Fix this by making above options to depend on I2C_DESIGNWARE_PLATFORM
being built-in. I2C_DESIGNWARE_PLATFORM is a visible symbol with
dependencies so in general the select should be avoided.

Fixes: acebcff9 ("mfd: intel_soc_pmic: Select designware i2c-bus driver")
Fixes: de85d79f ("mfd: Add Cherry Trail Whiskey Cove PMIC driver")
Fixes: 9bbf6a15 ("mfd: Add support for TPS68470 device")
Cc: Stable <stable@vger.kernel.org> # v4.14+
Reported-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NJarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The entire way how cros debugfs attibutes are created is broken.
cros_ec_sysfs should be its own driver and its attributes should be
associated with the sysfs driver not the mfd driver.

The patch also adds the sysfs documentation.
Signed-off-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: NGuenter Roeck <groeck@chromium.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

After commit 5d32a665 ("PCI/ACPI: Allow ACPI to be built without
CONFIG_PCI set") dependencies on CONFIG_PCI that previously were
satisfied implicitly through dependencies on CONFIG_ACPI have to be
specified directly.

WARNING: unmet direct dependencies detected for I2C_DESIGNWARE_PLATFORM
  Depends on [n]: I2C [=y] && HAS_IOMEM [=y] && (ACPI [=y] && COMMON_CLK [=n] || !ACPI [=y])
  Selected by [y]:
  - MFD_TPS68470 [=y] && HAS_IOMEM [=y] && ACPI [=y] && I2C [=y]=y

MFD_TPS68470 is an ACPI only device and selects I2C_DESIGNWARE_PLATFORM.

I2C_DESIGNWARE_PLATFORM does not have any configuration today for ACPI
support without CONFIG_PCI set.

For sake of a quick fix this introduces a new mandatory dependency to
the driver which may survive without it. Otherwise we need to revisit
the driver architecture to address this properly.

Fixes: 5d32a665 ("PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set")
Signed-off-by: NSinan Kaya <okaya@kernel.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

STPMIC1 is a PMIC from STMicroelectronics. The STPMIC1 integrates 10
regulators, 3 power switches, a watchdog and an input for a power on key.
Signed-off-by: NPascal Paillet <p.paillet@st.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This prepares the MFD for the STMPE ADC driver. This commit introduces
devicetree settings that are used by the ADC and adds an init function.
Common ADC settings that are shared with the touchscreen driver can now
reside in the overlying MFD.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NMax Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: NPhilippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

It doesn't make sense to present option MFD_AT91_USART by default if
not building an AT91 kernel, as the drivers which depend on it are
not available.

Fixes: 7d3aa342 ("mfd: at91-usart: Add MFD driver for USART")
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The main MFD driver for Samsung PMICs (S2MPSXX, S5M876X) used with
Exynos SoCs can be compiled and used as a module.  The dependent clock,
regulator and RTC drivers already can be built as a module.

Building entire set of drivers as modules might require using initial
ramdisk and can make booting process longer (due to probe deferrals).
However adding such option is useful for testing and for multi-platform
configurations.

This also add required module authors to sec-irq.c file based on recent
main contributors.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The indentation should be a tab followed by two spaces.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This MFD driver is just a wrapper over atmel_serial driver and
spi-at91-usart driver. Selection of one of the drivers is based on a
property from device tree. If the property is not specified, the default
driver is atmel_serial.
Signed-off-by: NRadu Pirea <radu.pirea@microchip.com>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

ROHM BD71837 PMIC MFD driver providing interrupts and support
for three subsystems:
- clk
- Regulators
- input/power-key
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

There are some cros-ec transport drivers (I2C, SPI) living in MFD, while
others (LPC) living in drivers/platform. The transport drivers are more
platform specific. So, move the I2C and SPI transport drivers to the
platform/chrome directory. The patch also removes the MFD_ prefix of
their Kconfig symbols.
Signed-off-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: NGuenter Roeck <groeck@chromium.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NBenson Leung <bleung@chromium.org>

Regmap configuration tables for Cirrus Logic CS47L90 and CS47L91 codecs.
Signed-off-by: NNikesh Oswal <nikesh@opensource.cirrus.com>
Signed-off-by: NRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Regmap configuration tables for Cirrus Logic CS47L85 codecs.
Signed-off-by: NNariman Poushin <nariman@opensource.cirrus.com>
Signed-off-by: NRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Regmap configuration tables for Cirrus Logic CS47L35 codecs.
Signed-off-by: NPiotr Stankiewicz <piotrs@opensource.cirrus.com>
Signed-off-by: NRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This adds the generic core support for Cirrus Logic "Madera" class codecs.
These are complex audio codec SoCs with a variety of digital and analogue
I/O, onboard audio processing and DSPs, and other features.

These codecs are all based off a common set of hardware IP so can be
supported by a core of common code (with a few minor device-to-device
variations).
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NNikesh Oswal <Nikesh.Oswal@cirrus.com>
Signed-off-by: NRichard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This should be enabled so that we get full compile coverage
of the PM8xxx MFD core with the different subdrivers.

Tested on the build servers.
Suggested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add a driver for RAVE Supervisory Processor, an MCU implementing
various bits of housekeeping functionality (watchdoging, backlight
control, LED control, etc) on RAVE family of products by Zodiac
Inflight Innovations.

This driver implementes core MFD/serdev device as well as
communication subroutines necessary for commanding the device.
Signed-off-by: NAndrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: NPhilippe Ombredanne <pombredanne@nexb.com>
Acked-by: NPavel Machek <pavel@ucw.cz>
Reviewed-by: NGuenter Roeck <linux@roeck-us.net>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: NChris Healy <cphealy@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The cros_ec_dev module is responsible for registering the MFD devices
attached to the ChromeOS EC. This patch moves this module to drivers/mfd
so calls to mfd_add_devices() are not done from outside the MFD subtree
anymore.
Signed-off-by: NThierry Escande <thierry.escande@collabora.com>
Reviewed-by: NGwendal Grignou <gwendal@chromium.org>
Tested-by: NGuenter Roeck <groeck@chromium.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Because Realtek card reader drivers are pcie and usb drivers,
and they bridge mmc subsystem and memstick subsystem, they are
not mfd drivers. Greg and Lee Jones had a discussion about
where to put the drivers, the result is that misc is a good
place for them, so I move all files to misc. If I don't move
them to a right place, I can't add any patch for this driver.
Signed-off-by: NRui Feng <rui_feng@realsil.com.cn>
Reviewed-by: NDaniel Bristot de Oliveira <bristot@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: NPerry Yuan <perry_yuan@dell.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch adds support for Spreadtrum SC27xx series PMIC MFD core, and It
provides communication through the SPI interfaces. The SC27xx series PMICs
contains the following 6 major components:
- DCDCs
- LDOs
- Battery management system
- Audio codec
- User interface function, such as indicator, flash LED
- IC level function, such as power on/off, type-c
Signed-off-by: NBaolin Wang <baolin.wang@spreadtrum.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Currently the driver boots only via device tree hence add a
dependency on CONFIG_OF. This leaves with a bunch of unused code
so clean that up.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

When the initial support was added for this PMIC was added
only regulator support was present. Now we have GPIO and Powerbutton
support as well. Hence correct the description of MFD_TPS65218 config
option.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch adds the MFD driver for Dollar Cove (TI version) PMIC with
ACPI INT33F5 that is found on some Intel Cherry Trail devices.
The driver is based on the original work by Intel, found at:
  https://github.com/01org/ProductionKernelQuilts

This is a minimal version for adding the basic resources.  Currently,
only ACPI PMIC opregion and the external power-button are used.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=193891Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Reviewed-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Currently the driver boots only via device tree hence add a
dependency on CONFIG_OF. This leaves with a bunch of unused code
so clean that up. This patch also makes use of probe_new function
in place of the probe function so as to avoid passing i2c_device_id.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Reviewed-by: NJavier Martinez Canillas <javierm@redhat.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The WM9705, WM9712 and WM9713 are highly integrated codecs, with an
audio codec, DAC and ADC, GPIO unit and a touchscreen interface.

Historically the support was spread across drivers/input/touchscreen and
sound/soc/codecs. The sharing was done through ac97 bus sharing. This
model will not withstand the new AC97 bus model, where codecs are
discovered on runtime.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Acked-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Both Bay and Cherry Trail devices may be used together with a Crystal Cove
PMIC. Each platform has its own variant of the PMIC, which both use the
same ACPI HID, but they are not 100% compatible.

This commits makes the intel_soc_pmic_core code check the _HRV of the
ACPI-firmware-node and selects intel_soc_pmic_config_byt_crc resp.
intel_soc_pmic_config_cht_crc based on this.

This fixes the Bay Trail specific ACPI OpRegion code causing problems
on Cherry Trail devices. Specifically this was causing the external
microsd slot on a Dell Venue 8 5855 (Cherry Trail version) to not work
and the eMMC to become unreliable and throw lots of errors.

Fixes: 51652384 ("mfd: intel_soc_pmic: Core driver")
Reported-and-tested-by: Nrussianneuromancer <russianneuromancer@ya.ru>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The PMIC provides ACPI OpRegions which must be available for other
drivers' PS0 / PS3 methods early-on as such it must be builtin as the
Kconfig help text already states.

Somehow its Kconfig option ended up being a tristate though, this fixes
this.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The TPS68470 device is an advanced power management
unit that powers a Compact Camera Module (CCM),
generates clocks for image sensors, drives a dual
LED for Flash and incorporates two LED drivers for
general purpose indicators.

This patch adds support for TPS68470 mfd device.
Signed-off-by: NRajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add the MFD part of the ROHM BD9571MWV-M PMIC driver and MAINTAINERS
entry. The MFD part only specifies the regmap bits for the PMIC and
binds the subdevs together.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

MTF_CORE should be enabled when driver is enabled.

Without this patch you can configure:

CONFIG_MFD_CORE is not set
  CONFIG_MFD_TPS65086=y

... which ends up with compilation error:
drivers/mfd/tps65086.o: In function `tps65086_probe':
drivers/mfd/tps65086.c:110: undefined reference to `mfd_add_devices'
drivers/mfd/tps65086.c:110:(.text+0x128): relocation truncated to fit: \
  R_AARCH64_CALL26 against undefined symbol `mfd_add_devices'
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

STM32 Low-Power Timer hardware block can be used for:
- PWM generation
- IIO trigger (in sync with PWM)
- IIO quadrature encoder counter
PWM and IIO timer configuration are mixed in the same registers so
we need a multi fonction driver to be able to share those registers.
Signed-off-by: NFabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The RK805 chip is a Power Management IC (PMIC) for multimedia and handheld
devices. It contains the following components:

    - Regulators
    - RTC
    - Clocking

Both RK808 and RK805 chips are using a similar register map,
so we can reuse the RTC and Clocking functionality.
Signed-off-by: NElaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: NJoseph Chen <chenjh@rock-chips.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The LP87565 chip is a power management IC for Portable Navigation Systems
and Tablet Computing devices. It contains the following components:

        - Configurable Bucks(Single and multi-phase).
        - Configurable General Purpose Output Signals (GPO).

The LP87565-Q1 variant device uses two 2-phase outputs configuration,
Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3
output.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

On x86 the AXP288 PMIC provides an ACPI OpRegion handler, which must be
available before other drivers using it are loaded, which can only be
ensured if the MFD, OpRegion and i2c-bus drivers are built-in.

Since the AXP20x MFD code is used on non x86 too we cannot simply change
this into a bool, I've tried some Kconfig magic with if x86 but I could
not get this working correctly, so this commit just documents that this
should be built-in on x86, which fixes errors like these during boot:

mmc0: SDHCI controller on ACPI [80860F14:00] using ADMA
ACPI Error: No handler for Region [REGS] (ffff93543b0cc3a8) [UserDefinedRegion]
ACPI Error: Region UserDefinedRegion (ID=143) has no handler (20170119/exfldio-2
ACPI Error: Method parse/execution failed [\_SB.PCI0.I2C7.PMI5.GET] (Node ffff93
ACPI Error: Method parse/execution failed [\_SB.PCI0.SHC1._PS0] (Node ffff93543b
acpi 80860F14:02: Failed to change power state to D0
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>
Tested-by: Nrussianneuromancer <russianneuromancer@ya.ru>
Signed-off-by: NLee Jones <lee.jones@linaro.org>