If CONFIG_MFD_SYSCON=n:

    include/linux/mfd/syscon.h:54:23: warning: ‘syscon_regmap_lookup_by_phandle_args’ defined but not used [-Wunused-function]

Fix this by adding the missing inline keyword.

Fixes: 6a24f567 ("mfd: syscon: Add arguments support for syscon reference")
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Qualcomm WCD9340/WCD9341 Codec is a standalone Hi-Fi audio codec IC.

This codec has integrated SoundWire controller, pin controller and
interrupt controller.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

There are a lot of similar global registers being used across multiple SoCs
from Unisoc. But most of these registers are assigned with different offset
for different SoCs. It is hard to handle all of them in an all-in-one
kernel image.

Add a helper function to get regmap with arguments where we could put some
extra information such as the offset value.
Signed-off-by: NOrson Zhai <orson.zhai@unisoc.com>
Tested-by: NBaolin Wang <baolin.wang@unisoc.com>
Reviewed-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

There is a bit which gets cleared after conversion.

Fixes: 9bb9e29c ("mfd: Add Ricoh RN5T618 PMIC core driver")
Signed-off-by: NAndreas Kemnade <andreas@kemnade.info>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add microchip,sam9x60-usart and add microchip,sam9x60-dbgu to DT
bindings documentation.
Signed-off-by: NClaudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Remove chip whildcard and introduce the list of compatibles instead.
Signed-off-by: NClaudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add the cros-usbpd-notify driver as a subdevice on platforms that
support the EC_FEATURE_USB_PD EC feature flag and don't have the
ACPI PD notification device defined.

This driver allows other cros-ec devices to receive PD event
notifications from the Chrome OS Embedded Controller (EC) via a
notification chain.
Signed-off-by: NPrashant Malani <pmalani@chromium.org>
Reviewed-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The watchdog driver compatible is "dlg,da9062-watchdog" and not
"dlg,da9062-wdt". Therefore the mfd-core can't populate the of_node and
fwnode. As result the watchdog driver can't parse the devicetree.

Fixes: 9b40b030 ("mfd: da9062: Supply core driver")
Signed-off-by: NMarco Felsch <m.felsch@pengutronix.de>
Acked-by: NGuenter Roeck <linux@roeck-us.net>
Reviewed-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Both manual and power on resets have a brief period where the chip will
not be accessible immediately afterwards. Extend the time allowed for
this from a minimum of 1mS to 2mS based on newer evaluation of the
hardware and ensure this reset happens in all reset conditions. Whilst
making the change also remove the redundant NULL checks in the reset
functions as the GPIO functions already check for this.
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Accessory detect mode 1 is missing a default, add one to the table.
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

It is advised to wait for the boot done bit to be set before reading
any other register, update the driver to respect this.
Signed-off-by: NCharles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Fix up inconsistent usage of upper and lowercase letters in "Samsung"
name.

"SAMSUNG" is not an abbreviation but a regular trademarked name.
Therefore it should be written with lowercase letters starting with
capital letter.

Although advertisement materials usually use uppercase "SAMSUNG", the
lowercase version is used in all legal aspects (e.g. on Wikipedia and in
privacy/legal statements on
https://www.samsung.com/semiconductor/privacy-global/).
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/mfd/tqmx86.c: In function ‘tqmx86_probe’:
drivers/mfd/tqmx86.c:161:29: warning: variable ‘i2c_ien’
set but not used I[-Wunused-but-set-variable]

It is never used, and so can be removed.
Signed-off-by: Nyu kuai <yukuai3@huawei.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The DSI PLLs are handled by the generic clock framework
since ages, this code is completely unused and misleading.
Delete it.

Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The display clocks are handled by the generic clock framework
since ages, this code is completely unused and misleading.
Delete it.

Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

MAX77650 MFD driver uses regmap_irq API but doesn't select the required
REGMAP_IRQ option in Kconfig. This can cause the following build error
if regmap irq is not enabled implicitly by someone else:

    ld: drivers/mfd/max77650.o: in function `max77650_i2c_probe':
    max77650.c:(.text+0xcb): undefined reference to `devm_regmap_add_irq_chip'
    ld: max77650.c:(.text+0xdb): undefined reference to `regmap_irq_get_domain'
    make: *** [Makefile:1079: vmlinux] Error 1

Fix it by adding the missing option.

Fixes: d0f60334 ("mfd: Add new driver for MAX77650 PMIC")
Reported-by: NPaul Gazzillo <paul@pgazz.com>
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

On AXP288 and newer PMICs, bit 7 of AXP20X_VBUS_IPSOUT_MGMT can be set
to prevent using the VBUS input. However, when the VBUS unplugged and
plugged back in, the bit automatically resets to zero.

We need to set the register as volatile to prevent regmap from caching
that bit. Otherwise, regcache will think the bit is already set and not
write the register.

Fixes: cd532166 ("mfd: axp20x: Fix axp288 volatile ranges")
Cc: stable@vger.kernel.org
Signed-off-by: NSamuel Holland <samuel@sholland.org>
Reviewed-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Commit f4d41ad8 ("mfd: ab8500: Example using new OF_MFD_CELL MACRO")
has a typo error renaming "ab8500-clk" to "abx500-clk"
with the result att ALSA SoC audio broke as the clock
driver was not probing anymore. Fixed it up.

Fixes: f4d41ad8 ("mfd: ab8500: Example using new OF_MFD_CELL MACRO")
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: NStephan Gerhold <stephan@gerhold.net>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Intel Jasper Lake has the same LPSS than Intel Ice Lake.
Add the new IDs to the list of supported devices.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

max77836 MFD has a fuel gauge that has a low SOC alert feature that is
described in:

  Documentation/devicetree/bindings/power/supply/max17040_battery.txt

Adding the reference to the documentation here.
Signed-off-by: NMatheus Castello <matheus@castello.eng.br>
Acked-by: NRob Herring <robh@kernel.org>
Reviewed-by: NKrzysztof Kozlowski <krzk@kernel.org>
[Lee: Fix relative path]
Signed-off-by: NLee Jones <lee.jones@linaro.org>

AB8505 support was never fully converted to the device tree.
Most of the MFD cells for AB8505 lack an "of_compatible",
which prevents them from being configured through the device tree.

Align the definition of the AB8505 MFD cells with the ones for AB8500,
and add device tree compatibles. Except for GPIO and regulators the
compatibles are equal to those used for AB8500 because the hardware
does not differ much.

Finally, change db8500_prcmu_register_ab8500() to check for the AB8505
device tree node additionally, and probe it if it is found.
Signed-off-by: NStephan Gerhold <stephan@gerhold.net>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

AB8505 can now be configured from the device tree.
The configuration is almost identical to AB8500, so just add a note
for the nodes/compatibles that differ between the two revisions.
Signed-off-by: NStephan Gerhold <stephan@gerhold.net>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The LogiCVC is a display engine which also exposes GPIO functionality.
For this reason, it is described as a multi-function device that is expected
to provide register access to its children nodes for gpio and display.
Signed-off-by: NPaul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add gpio device documentation to make the da9062 gpios available for
users.
Signed-off-by: NMarco Felsch <m.felsch@pengutronix.de>
Reviewed-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Currently the da9062 GPIO's aren't available. The patch adds the support
to make these available by adding a gpio device with the corresponding
irq resources. Furthermore the patch fixes a minor style issue for the
onkey device.
Signed-off-by: NMarco Felsch <m.felsch@pengutronix.de>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

It is not enough to check for the number of endpoints.
The types must also be correct.

Reported-and-tested-by: syzbot+48a2851be24583b864dc@syzkaller.appspotmail.com
Signed-off-by: NOliver Neukum <oneukum@suse.com>
Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This driver misuses release_resource + kfree to match request_mem_region,
which is incorrect.
The right way is to use release_mem_region.
Replace the mismatched calls with the right ones to fix it.
Signed-off-by: NChuhong Yuan <hslester96@gmail.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Instead of open coded variant use resource_size() and replace
weird '- 3' to more understandable '- 4'.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

ROHM BD71828 PMIC contains 4 pins which can be configured by OTP
to be used for general purposes. First 3 can be used as outputs
and 4.th pin can be used as input. Allow them to be controlled
via GPIO framework.

The driver assumes all of the pins are configured as GPIOs and
trusts that the reserved pins in other OTP configurations are
excluded from control using "gpio-reserved-ranges" device tree
property (or left untouched by GPIO users).

Typical use for 4.th pin (input) is to use it as HALL sensor
input so that this pin state is toggled when HALL sensor detects
LID position change (from close to open or open to close). PMIC
HW implements some extra logic which allows PMIC to power-up the
system when this pin is toggled. Please see the data sheet for
details of GPIO options which can be selected by OTP settings.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

ROHM BD71828 PMIC RTC block is from many parts similar to one
on BD70528. Support BD71828 RTC using BD70528 RTC driver and
avoid re-inventing the wheel.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

When RTC is used in 24H mode (and it is by this driver) the maximum
hour value is 24 in BCD. This occupies bits [5:0] - which means
correct mask for HOUR register is 0x3f not 0x1f. Fix the mask

Fixes: 32a4a4eb ("rtc: bd70528: Initial support for ROHM bd70528 RTC")
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Few ROHM PMICs allow setting the voltage states for different system states
like RUN, IDLE, SUSPEND and LPSR. States are then changed via SoC specific
mechanisms. bd718x7 driver implemented device-tree parsing functions for
these state specific voltages. The parsing functions can be re-used by
other ROHM chip drivers like bd71828. Split the generic functions from
bd718x7-regulator.c to rohm-regulator.c and export them for other modules
to use.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

BD71828GW is a single-chip power management IC for battery-powered portable
devices. Add support for controlling BD71828 clk using bd718x7 driver.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: NStephen Boyd <sboyd@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Use gpio_keys to send power input-event to user-space when power
button (short) press is detected.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

BD71828GW is a single-chip power management IC for battery-powered portable
devices. The IC integrates 7 buck converters, 7 LDOs, and a 1500 mA
single-cell linear charger. Also included is a Coulomb counter, a real-time
clock (RTC), 3 GPO/regulator control pins, HALL input and a 32.768 kHz
clock gate.

Add MFD core driver providing interrupt controller facilities and i2c
access to sub device drivers.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

ROHM BD71850 PMIC is almost identical to BD71847. Main difference is some
initial voltage values for regulators. The BD71850 can be handled by
BD71847 driver but adding own compatible makes it clearer for one who
creates the DT for board containing this PMIC and allows SW to be
differentiating PMICs if needed.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Thanks to Stephen Boyd I today learned we can use platform_device_id
to do device and module matching for MFD sub-devices!

Do device matching using the platform_device_id instead of using
explicit module_aliases to load modules and custom parent-data field
to do module loading and sub-device matching.

Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

ROHM BD71828 Power management IC integrates 7 buck converters, 7 LDOs,
a real-time clock (RTC), 3 GPO/regulator control pins, HALL input
and a 32.768 kHz clock gate.

Document the dt bindings drivers are using.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Document ROHM BD71828 PMIC LED driver device tree bindings.
Signed-off-by: NMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Acked-by: NPavel Machek <pavel@ucw.cz>
Signed-off-by: NLee Jones <lee.jones@linaro.org>