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Author SHA1 Message Date
Waqar Hameed
99767a0c8b mfd: macsmc: Remove error prints for devm_add_action_or_reset() 
When `devm_add_action_or_reset()` fails, it is due to a failed memory
allocation and will thus return `-ENOMEM`. `dev_err_probe()` doesn't do
anything when error is `-ENOMEM`. Therefore, remove the useless call to
`dev_err_probe()` when `devm_add_action_or_reset()` fails, and just
return the value instead.

Signed-off-by: Waqar Hameed <waqar.hameed@axis.com>
Reviewed-by: Sven Peter <sven@kernel.org>
Link: https://lore.kernel.org/r/pnd8qjym7td.a.out@axis.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:19 +01:00
Jens Kehne
9ac4890ac3 mfd: da9063: Split chip variant reading in two bus transactions 
We observed the initial probe of the da9063 failing in
da9063_get_device_type in about 30% of boots on a Xilinx ZynqMP based
board. The problem originates in da9063_i2c_blockreg_read, which uses
a single bus transaction to turn the register page and then read a
register. On the bus, this should translate to a write to register 0,
followed by a read to the target register, separated by a repeated
start. However, we found that after the write to register 0, the
controller sometimes continues directly with the register address of
the read request, without sending the chip address or a repeated start
in between, which makes the read request invalid.

To fix this, separate turning the page and reading the register into
two separate transactions. This brings the initialization code in line
with the rest of the driver, which uses register maps (which to my
knowledge do not use repeated starts after turning the page). This has
been included in our kernel for several months and was recently
included in a shipped product. For us, it reliably fixes the issue,
and we have not observed any new issues.

While the underlying problem is probably with the i2c controller or
its driver, I still propose a change here in the interest of
robustness: First, I'm not sure this issue can be fixed on the
controller side, since there are other issues related to repeated
start which can't (AR# 60695, AR# 61664). Second, similar problems
might exist with other controllers.

Signed-off-by: Jens Kehne <jens.kehne@agilent.com>
Link: https://lore.kernel.org/r/20250804133754.3496718-1-jens.kehne@agilent.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:18 +01:00
Hans de Goede
64e0d839c5 mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag 
Testing has shown that reading multiple registers at once (for 10-bit
ADC values) does not work. Set the use_single_read regmap_config flag
to make regmap split these for us.

This should fix temperature opregion accesses done by
drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for
the upcoming drivers for the ADC and battery MFD cells.

Fixes: 6bac0606fd ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC")
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:17 +01:00
Heiko Stuebner
71f529e9fe mfd: qnap-mcu: Improve structure in qnap_mcu_exec 
Now with guard(mutex) in place, we can make the function's structure
a bit easier to read, by removing the nested if-else-clauses.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250804130726.3180806-5-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:16 +01:00
Heiko Stuebner
21c5ffb421 mfd: qnap-mcu: Convert to guard(mutex) in qnap_mcu_exec 
guard() makes sure that the mutex gets unlocked when the function returns
and thus removes the need for unlock gotos or similar mechanisms and
therefore allows for a simpler function structure.

So convert the qnap_mcu_exec function to use it.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250804130726.3180806-4-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:15 +01:00
Heiko Stuebner
bf2de43060 mfd: qnap-mcu: Handle errors returned from qnap_mcu_write 
qnap_mcu_write can return errors and those were not checked before.
So do that now.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250804130726.3180806-3-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:14 +01:00
Heiko Stuebner
5e1c886791 mfd: qnap-mcu: Include linux/types.h in qnap-mcu.h shared header 
Relying on other components to include those basic types is unreliable
and may cause compile errors like:

../include/linux/mfd/qnap-mcu.h:13:9: error: unknown type name ‘u32’
   13 |         u32 baud_rate;
      |         ^~~
../include/linux/mfd/qnap-mcu.h:17:9: error: unknown type name ‘bool’
   17 |         bool usb_led;
      |         ^~~~

So make sure, the types used in the header are available.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250804130726.3180806-2-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:13 +01:00
Heijligen, Thomas
309e65d151 mfd: kempld: Switch back to earlier ->init() behavior 
Commit 9e36775c22 ("mfd: kempld: Remove custom DMI matching code")
removes the ability to load the driver if no matching system DMI data
is found. Before this commit the driver could be loaded using
alternative methods such as ACPI or `force_device_id` in the absence
of a matching system DMI entry.

Restore this ability while keeping the refactored
`platform_device_info` table.

Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/7d2c7e92253d851194a781720051536cca2722b8.camel@secunet.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:12 +01:00
Heiko Stuebner
597b398bc2 dt-bindings: mfd: qnap,ts433-mcu: Allow nvmem-layout child node 
The MCU has an eeprom memory connected internally, that for example
contains some mac-addresses for the soc gmac controllers.

Therefore allow defining the nvmem-layout for the eeprom.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250730172248.1875122-2-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:11 +01:00
Heiko Stuebner
865417d565 mfd: qnap-mcu: Add driver data for TS233 variant 
Add the TS233 compatible and affiliated driver data to qnap-mcu.
The TS233 is mostly similar to the TS433, except not having any of the
PCIe components, so there are only 2 drives.

The fan pwm-limits from the vendor-configuration also are the same
as for the ts433 variant.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250730173423.1878599-3-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:10 +01:00
Heiko Stuebner
9d602da0c9 dt-bindings: mfd: qnap,ts433-mcu: Add qnap,ts233-mcu compatible 
The same MCU is used on other devices of the series with a slightly
different set of features, like the number of LEDs.

Add a compatible for the MCU used in the TS233 variant.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250730173423.1878599-2-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:09 +01:00
Alexander Stein
00ea54f058 mfd: stmpe-i2c: Add missing MODULE_LICENSE 
This driver is licensed GPL-2.0-only, so add the corresponding module flag.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250725071153.338912-3-alexander.stein@ew.tq-group.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:08 +01:00
Alexander Stein
d00c912041 mfd: stmpe-spi: Add missing MODULE_LICENSE 
This driver is licensed GPL-2.0-only, so add the corresponding module flag.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250725071153.338912-2-alexander.stein@ew.tq-group.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:07 +01:00
Alexander Stein
557b09699b mfd: stmpe-i2c: Use module_i2c_driver to remove boilerplate 
Driver implements feature of module_i2c_driver() manually. Replace it by
that macro instead.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250725070752.338376-3-alexander.stein@ew.tq-group.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:06 +01:00
Alexander Stein
57b1fec0be mfd: stmpe-spi: Use module_spi_driver to remove boilerplate 
Driver implements feature of module_spi_driver() manually. Replace it by
that macro instead.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250725070752.338376-2-alexander.stein@ew.tq-group.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:06 +01:00
Alexander Stein
57bf2a312a mfd: stmpe: Remove IRQ domain upon removal 
The IRQ domain is (optionally) added during stmpe_probe, but never removed.
Add the call to stmpe_remove.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250725070752.338376-1-alexander.stein@ew.tq-group.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:05 +01:00
Colin Ian King
ba2b3de78f mfd: Kconfig: Fix spelling mistake "infontainment" -> "infotainment" 
There is a spelling mistake in the MFD_TIMBERDALE description. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20250724111459.141633-1-colin.i.king@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:04 +01:00
Nuno Sá
0b9483bf7f mfd: adp5585: Drop useless return statement 
In adp5585_reset_ev_parse(), when parsing the
adi,reset-pulse-width-us property, we were returning in case it was
found and valid. No point in doing that as we'll be returning anyways
after the exiting the property scope. And it could actually lead to bugs
if new properties happen to added after this one.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/linux-gpio/c85604d9e077511b8aa6ee0786579594cc0103d4.camel@gmail.com/T/#ma25557bd06ccd2531dc9c85ba6be74af781b81aa
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250717-adp5585-drop-ret-v1-1-2ae65bd780aa@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:03 +01:00
Ioana Ciornei
81a2c31257 mfd: simple-mfd-i2c: Add compatible strings for Layerscape QIXIS FPGA 
The QIXIS FPGA found on Layerscape boards such as LX2160AQDS, LS1028AQDS
etc deals with power-on-reset timing, muxing etc. Use the simple-mfd-i2c
as its core driver by adding its compatible string (already found in
some dt files). By using the simple-mfd-i2c driver, any child device
will have access to the i2c regmap created by it.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20250707153120.1371719-1-ioana.ciornei@nxp.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-10-01 10:28:01 +01:00
Lee Jones
e8c8128403 Merge branches 'ib-mfd-char-crypto-6.18', 'ib-mfd-gpio-6.18', 'ib-mfd-gpio-hwmon-i2c-can-rtc-watchdog-6.18', 'ib-mfd-gpio-input-pinctrl-pwm-6.18', 'ib-mfd-input-6.18', 'ib-mfd-input-rtc-6.18' and 'ib-mfd-power-regulator-6.18' into ibs-for-mfd-merged 2025-10-01 10:27:35 +01:00
Lukas Bulwahn
017bdcdb3a MAINTAINERS: Adjust file entry in LOONGSON SECURITY ENGINE DRIVERS 
Commit 5c83b07df9 ("tpm: Add a driver for Loongson TPM device") adds a
driver at drivers/char/tpm/tpm_loongson.c, and commit 74fddd5fba
("MAINTAINERS: Add entry for Loongson Security Engine drivers") adds a new
section LOONGSON SECURITY ENGINE DRIVERS intending to refer to that driver.
It however adds the entry drivers/char/tpm_loongson.c; note that it misses
the tpm subdirectory.

Adjust the entry to refer to the intended file.

Fixes: 74fddd5fba ("MAINTAINERS: Add entry for Loongson Security Engine drivers")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-25 12:59:30 +01:00
Nathan Chancellor
a727bc0588 tpm: loongson: Add bufsiz parameter to tpm_loongson_send() 
Commit 5c83b07df9 ("tpm: Add a driver for Loongson TPM device") has a
semantic conflict with commit 07d8004d6f ("tpm: add bufsiz parameter
in the .send callback"), as the former change was developed against a
tree without the latter change. This results in a build error:

  drivers/char/tpm/tpm_loongson.c:48:17: error: initialization of 'int (*)(struct tpm_chip *, u8 *, size_t,  size_t)' {aka 'int (*)(struct tpm_chip *, unsigned char *, long unsigned int,  long unsigned int)'} from incompatible pointer type 'int (*)(struct tpm_chip *, u8 *, size_t)' {aka 'int (*)(struct tpm_chip *, unsigned char *, long unsigned int)'} [-Wincompatible-pointer-types]
     48 |         .send = tpm_loongson_send,
        |                 ^~~~~~~~~~~~~~~~~
  drivers/char/tpm/tpm_loongson.c:48:17: note: (near initialization for 'tpm_loongson_ops.send')
  drivers/char/tpm/tpm_loongson.c:31:12: note: 'tpm_loongson_send' declared here
     31 | static int tpm_loongson_send(struct tpm_chip *chip, u8 *buf, size_t count)
        |            ^~~~~~~~~~~~~~~~~

Add the expected bufsiz parameter to tpm_loongson_send() to resolve the
error.

Fixes: 5c83b07df9 ("tpm: Add a driver for Loongson TPM device")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-25 12:45:03 +01:00
Mathieu Dubois-Briand
32d4cedd24 MAINTAINERS: Add entry on MAX7360 driver 
Add myself as maintainer of Maxim MAX7360 driver and device-tree bindings.

Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-10-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
229c15e9a6 input: misc: Add support for MAX7360 rotary 
Add driver for Maxim Integrated MAX7360 rotary encoder controller,
supporting a single rotary switch.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-9-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
fa6a23f1c5 input: keyboard: Add support for MAX7360 keypad 
Add driver for Maxim Integrated MAX7360 keypad controller, providing
support for up to 64 keys, with a matrix of 8 columns and 8 rows.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-8-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
b1a7433d85 gpio: max7360: Add MAX7360 gpio support 
Add driver for Maxim Integrated MAX7360 GPIO/GPO controller.

Two sets of GPIOs are provided by the device:
- Up to 8 GPIOs, shared with the PWM and rotary encoder functionalities.
  These GPIOs also provide interrupts on input changes.
- Up to 6 GPOs, on unused keypad columns pins.

Co-developed-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-7-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
0627b71fa5 gpio: regmap: Allow to provide init_valid_mask callback 
Allows to populate the gpio_regmap_config structure with
init_valid_mask() callback to set on the final gpio_chip structure.

Reviewed-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-6-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
553b75d4bf gpio: regmap: Allow to allocate regmap-irq device 
GPIO controller often have support for IRQ: allow to easily allocate
both gpio-regmap and regmap-irq in one operation.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-5-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Kamel Bouhara
d93a75d94b pwm: max7360: Add MAX7360 PWM support 
Add driver for Maxim Integrated MAX7360 PWM controller, supporting up to
8 independent PWM outputs.

Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Co-developed-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-4-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
b4b993c0e3 pinctrl: Add MAX7360 pinctrl driver 
Add driver for Maxim Integrated MAX7360 pinctrl on the PORT pins. Pins
can be used either for GPIO, PWM or rotary encoder functionalities.

Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-3-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Kamel Bouhara
a22ddeef55 mfd: Add max7360 support 
Add core driver to support MAX7360 i2c chip, multi function device
with keypad, GPIO, PWM, GPO and rotary encoder submodules.

Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Co-developed-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-2-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
aee814458f dt-bindings: mfd: gpio: Add MAX7360 
Add device tree bindings for Maxim Integrated MAX7360 device with
support for keypad, rotary, gpios and pwm functionalities.

Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-1-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 15:24:48 +01:00
Ming Yu
d463bb1405 rtc: Add Nuvoton NCT6694 RTC support 
This driver supports RTC functionality for NCT6694 MFD device
based on USB interface.

Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-8-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 14:41:58 +01:00
Ming Yu
197e779d29 hwmon: Add Nuvoton NCT6694 HWMON support 
This driver supports Hardware monitor functionality for NCT6694 MFD
device based on USB interface.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-7-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 14:41:57 +01:00
Ming Yu
f9d737a7d8 watchdog: Add Nuvoton NCT6694 WDT support 
This driver supports Watchdog timer functionality for NCT6694 MFD
device based on USB interface.

Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-6-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 14:41:57 +01:00
Ming Yu
8a204684d0 can: Add Nuvoton NCT6694 CANFD support 
This driver supports Socket CANFD functionality for NCT6694 MFD
device based on USB interface.

Reviewed-by: Marc Kleine-Budde <mkl@pengutronix.de>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-5-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 14:41:57 +01:00
Ming Yu
c5cf27dbae i2c: Add Nuvoton NCT6694 I2C support 
This driver supports I2C adapter functionality for NCT6694 MFD
device based on USB interface.

Each I2C controller uses the default baudrate of 100kHz, which
can be overridden via module parameters.

Acked-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-4-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 14:41:57 +01:00
Ming Yu
611a995e8a gpio: Add Nuvoton NCT6694 GPIO support 
This driver supports GPIO and IRQ functionality for NCT6694 MFD
device based on USB interface.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-3-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 14:41:57 +01:00
Ming Yu
51dad33ede mfd: Add core driver for Nuvoton NCT6694 
The Nuvoton NCT6694 provides an USB interface to the host to
access its features.

Sub-devices can use the USB functions nct6694_read_msg() and
nct6694_write_msg() to issue a command. They can also request
interrupt that will be called when the USB device receives its
interrupt pipe.

Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-2-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-16 14:41:57 +01:00
Nathan Chancellor
a377b1be3a mfd: tps6594: Explicitly include bitfield.h 
After a recent change that started using FIELD_GET() in tps6594-core.c,
there is an error when bitfield.h is not implicitly included, such as
when building allmodconfig for ARCH=hexagon:

  drivers/mfd/tps6594-core.c:767:7: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    767 |                 if (FIELD_GET(TPS65224_MASK_EN_PB_VSENSE_CONFIG, pwr_on) == TPS65224_EN_SEL_PB ||
        |                     ^

Explicitly include bitfield.h to resolve the errors.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: d766ca01c2 ("mfd: tps6594: Add power button functionality")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Closes: https://lore.kernel.org/oe-kbuild-all/202509032356.LGa5hygM-lkp@intel.com/
Link: https://lore.kernel.org/r/20250904-mfd-tps6594-core-fix-bitfield-h-v1-1-5d0f00cfe58f@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-11 16:06:02 +01:00
Chris Morgan
981dd162b6 regulator: bq257xx: Add bq257xx boost regulator driver 
Add support for the boost regulator found in the Texas Instruments
BQ25703. The boost regulator is capable of outputting between 4.48
and 20.8 volts and between 0 and 6.35 amps.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250904160530.66178-5-macroalpha82@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-11 15:55:41 +01:00
Chris Morgan
1cc017b7f9 power: supply: bq257xx: Add support for BQ257XX charger 
Add support for the charger function of the BQ257XX. The device is
capable of charging batteries with a layout of 1 to 4 cells in
series.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20250904160530.66178-4-macroalpha82@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-11 15:55:17 +01:00
Chris Morgan
3b1bbfb5fc mfd: bq257xx: Add support for BQ25703A core driver 
The Texas Instruments BQ25703A is an integrated charger manager and
boost converter.

The MFD driver initializes the device for the regulator driver
and power supply driver.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20250904160530.66178-3-macroalpha82@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-11 15:54:43 +01:00
Chris Morgan
76bc2203a4 dt-bindings: mfd: ti,bq25703a: Add TI BQ25703A Charger 
Document the Texas instruments BQ25703A series of charger managers/
buck/boost regulators.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250904160530.66178-2-macroalpha82@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-11 15:54:23 +01:00
Alexander Kurz
f0addd325e mfd: input: rtc: mc13783: Remove deprecated mc13xxx_irq_ack() 
mc13xxx_irq_ack() got deprecated and became dead code with commit
10f9edaeaa ("mfd: mc13xxx: Use regmap irq framework for interrupts").
It should be safe to remove it now.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # for input
Link: https://lore.kernel.org/r/20250811064358.1659-1-akurz@blala.de
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-11 11:39:31 +01:00
Bartosz Golaszewski
9b33bbc084 mfd: vexpress-sysreg: Use new generic GPIO chip API 
Convert the driver to using the new generic GPIO chip interfaces from
linux/gpio/generic.h.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250811-gpio-mmio-mfd-conv-v1-2-68c5c958cf80@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-03 12:45:33 +01:00
Bartosz Golaszewski
1efbee6852 mfd: vexpress-sysreg: Check the return value of devm_gpiochip_add_data() 
Commit 974cc7b934 ("mfd: vexpress: Define the device as MFD cells")
removed the return value check from the call to gpiochip_add_data() (or
rather gpiochip_add() back then and later converted to devres) with no
explanation. This function however can still fail, so check the return
value and bail-out if it does.

Cc: stable@vger.kernel.org
Fixes: 974cc7b934 ("mfd: vexpress: Define the device as MFD cells")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250811-gpio-mmio-mfd-conv-v1-1-68c5c958cf80@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-03 12:45:27 +01:00
Michael Walle
2215a87b02 mfd: tps6594: Add board power-off support 
Add a system level power-off handler if the "system-power-controller"
flag is set for this device in the device tree.

A power-off request is triggered by writing the TRIGGER_I2C_0 bit (which
is actually just a convention and really depends on the freely
programmable FSM).

Co-developed-by: Job Sava <jsava@criticallink.com>
Signed-off-by: Job Sava <jsava@criticallink.com>
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20250826134631.1499936-4-mwalle@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-03 11:28:36 +01:00
Michael Walle
d766ca01c2 mfd: tps6594: Add power button functionality 
The PMIC has a multi-function pin PB/EN/VSENSE. If it is configured as
push-button (PB), add the corresponding device for it.

Co-developed-by: Job Sava <jsava@criticallink.com>
Signed-off-by: Job Sava <jsava@criticallink.com>
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20250826134631.1499936-3-mwalle@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-03 11:28:26 +01:00
Job Sava
170031ff27 input: tps6594-pwrbutton: Add power button functionality 
TPS6594 defines two interrupts for the power button one for push and
one for release.

This driver is very simple in that it maps the push interrupt to a key
input and the release interrupt to a key release.

Signed-off-by: Job Sava <jsava@criticallink.com>
Signed-off-by: Michael Walle <mwalle@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20250826134631.1499936-2-mwalle@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
 2025-09-03 11:28:07 +01:00