linux-toradex.git/drivers/gpio/Kconfig, branch master

Merge tag 'hwmon-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2026-06-16T02:40:21+00:00

Pull hwmon updates from Guenter Roeck:
 "New drivers for the following chips:
   - Analog Devices LTC4283 Swap Controller
   - Analog Devices MAX20830
   - Analog Devices MAX20860A
   - ARCTIC Fan Controller
   - Delta E50SN12051
   - Luxshare LX1308
   - Microchip EMC1812/13/14/15/33
   - Monolithic MP2985
   - Murata D1U74T PSU

  New chip support added to existing drivers:
   - asus-ec-sensors: Support for ROG MAXIMUS Z790 EXTREME, ROG STRIX
     B850-E GAMING WIFI, and ROG STRIX B650E-E GAMING WIFI
   - dell-smm: Add Dell Latitude 7530 to fan control whitelist
   - nct6683: Support for ASRock Z890 Pro-A
   - pmbus: Support for Flex BMR316, BMR321, BMR350 and BMR351
   - pmbus/max34440: Support for ADPM12250
   - pmbus/xdp720: Support for Infineon xdp730, and fix driver issues
     reported by Sashiko

  New functionality:
   - Add support for update_interval_us chip attribute, and support it
     in ina238 driver
   - Add support for guard() and scoped_guard() for subsystem locks, and
     use it in adt7411, ina2xx, and lm90 drivers
   - emc2305: Support configurable fan PWM at shutdown
   - lm63: Expose PWM frequency and LUT hysteresis as writable
   - lm75: Support active-high alert polarity
   - nct7802: Add time step attributes for tweaking responsiveness
   - pmbus/adm1266: Add rtc debugfs entries for rtc, powerup_counter,
     clear_blackbox, and firmware_revision
   - raspberrypi: Fix delayed-work teardown race, add voltage input
     support as well as voltage domain IDs
   - mcp9982: Add support for reporting external diode faults

  Miscellaneous bug fixes, changes and improvements:
   - Use named initializers for platform_device_id arrays and
     i2c_device_data, and remove unused driver data
   - Various drivers: Move MODULE_DEVICE_TABLE next to the table itself
   - ads7871: Convert to hwmon_device_register_with_info(), and use
     DMA-safe buffer for SPI writes
   - adt7411: document supported sysfs attributes
   - adt7462: Add of_match_table to support devicetree
   - adt7475: Add explicit header include
   - coretemp; Fix outdated documentation, coding style issues, and
     replace hardcoded core count with dynamic value
   - cros_ec: Drop unused assignment of platform_device_id driver data
   - emc2305: Fix fan channel index handling
   - gpd-fan: Reject EC PWM value 0 as invalid, fix race condition
     between device removal and sysfs access, upgrade log level from
     warn to err for platform device creation failure, initialize EC
     before registering hwmon device, drop global driver data and use
     per-device allocation
   - htu31: document debugfs serial_number
   - ina238: Add support for samples and update_interval
   - it87: Clamp negative values to zero in set_fan()
   - lm75: Add explicit header include, Add explicit default cases in
     lm75_is_visible(), and add section for sysfs interface to
     documentation
   - pmbus/lm25066: Fix PMBus coefficients for LM5064/5066/5066i
   - tmp102: Use device_property_read_string API
   - tmp401: Read "ti,n-factor" as signed
   - Convert zyxel,nsa320-mcu to DT schema"

* tag 'hwmon-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (81 commits)
  hwmon: tmp401: Read "ti,n-factor" as signed
  hwmon: (pmbus/lm25066) Fix PMBus coefficients for LM5064/5066/5066i
  hwmon: (gpd-fan) Reject EC PWM value 0 as invalid
  hwmon: (dell-smm) Add Dell Latitude 7530 to fan control whitelist
  hwmon: temperature: add support for EMC1812
  dt-bindings: hwmon: temperature: add support for EMC1812
  hwmon: (gpd-fan): fix race condition between device removal and sysfs access
  hwmon: (gpd-fan): upgrade log level from warn to err for platform device creation failure
  hwmon: (gpd-fan): Initialize EC before registering hwmon device
  hwmon: (gpd-fan): drop global driver data and use per-device allocation
  hwmon: (pmbus/max34440): add support adpm12250
  hwmon: (ina238) Add update_interval_us attribute
  hwmon: Add update_interval_us chip attribute
  hwmon: (ina238) Add support for samples and update_interval
  gpio: gpio-ltc4283: Add support for the LTC4283 Swap Controller
  hwmon: ltc4283: Add support for the LTC4283 Swap Controller
  dt-bindings: hwmon: Document the LTC4283 Swap Controller
  hwmon: (pmbus/xdp720) Fix driver issues xdp720/730
  hwmon: (pmbus/xdp720) Add support for efuse xdp730
  dt-bindings: hwmon/pmbus: Add Infineon xdp730
  ...

gpio: gpio-ltc4283: Add support for the LTC4283 Swap Controller

2026-06-09T15:30:29+00:00

The LTC4283 device has up to 8 pins that can be configured as GPIOs.

Note that PGIO pins are not set as GPIOs by default so if they are
configured to be used as GPIOs we need to make sure to initialize them
to a sane default. They are set as inputs by default.

Acked-by: Bartosz Golaszewski 
Reviewed-by: Linus Walleij 
Signed-off-by: Nuno Sá 
Link: https://lore.kernel.org/r/20260502-ltc4283-support-v13-3-1c206542e652@analog.com
Signed-off-by: Guenter Roeck

gpio: ts5500: remove obsolete driver

2026-05-27T07:58:21+00:00

The ts5500 platform is no longer functional because it is
based on the removed AMD Élan i486 SoC. Remove the now
obsolete driver.

Signed-off-by: Arnd Bergmann 
Reviewed-by: Linus Walleij 
Link: https://patch.msgid.link/20260526103424.3246915-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski

gpio: add kunit test cases for the GPIO subsystem

2026-05-26T09:19:54+00:00

Add a module containing kunit test cases for GPIO core. The idea is to
use it to test functionalities that can't easily be tested from
user-space with kernel selftests or GPIO character device test suites
provided by the libgpiod package.

For now add test cases that verify software node based lookup and ensure
that a GPIO provider unbinding with active consumers does not cause a
crash.

Reviewed-by: David Gow 
Reviewed-by: Linus Walleij 
Link: https://patch.msgid.link/20260522-gpiolib-kunit-v3-3-b15fe6987430@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski

gpio: en7523: allow COMPILE_TEST builds

2026-05-20T13:24:34+00:00

The Airoha EN7523 GPIO driver uses generic platform, MMIO, and gpiolib
interfaces.  Allow it to build with COMPILE_TEST so it gets coverage on
non-Airoha platforms.

Tested with:
make LLVM=1 ARCH=loongarch drivers/gpio/gpio-en7523.o

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev 
Link: https://patch.msgid.link/20260519005912.628667-1-rosenp@gmail.com
Signed-off-by: Bartosz Golaszewski

gpio: xgene: allow COMPILE_TEST builds

2026-05-20T13:23:46+00:00

The APM X-Gene GPIO driver uses generic platform, ACPI, MMIO, and gpiolib
interfaces.  Allow it to build with COMPILE_TEST, matching the existing
coverage for the X-Gene standby GPIO driver.

Tested with:
make LLVM=1 ARCH=loongarch drivers/gpio/gpio-xgene.o

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev 
Link: https://patch.msgid.link/20260519005958.628783-1-rosenp@gmail.com
Signed-off-by: Bartosz Golaszewski

gpio: spear-spics: Add COMPILE_TEST support

2026-05-11T13:23:59+00:00

The SPEAr SPI chip-select GPIO driver only depends on generic platform,
OF, and MMIO interfaces, so it can be built outside SPEAr platform
configurations.

Enable compile-test coverage to catch build regressions on other
architectures.

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev 
Link: https://patch.msgid.link/20260510195531.10561-1-rosenp@gmail.com
Signed-off-by: Bartosz Golaszewski

gpio: zevio: allow COMPILE_TEST builds

2026-05-11T10:14:37+00:00

The ZEVIO GPIO driver uses generic platform, MMIO, and gpiolib interfaces.
Allow it to build with COMPILE_TEST so it gets coverage on non-ARM
platforms.

Drop the ARM-specific IOMEM() casts around the register pointer.  The
pointer is already __iomem, so readl() and writel() can use it directly.

Tested with:
make LLVM=1 ARCH=loongarch drivers/gpio/gpio-zevio.o

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev 
Link: https://patch.msgid.link/20260509003438.956051-1-rosenp@gmail.com
Signed-off-by: Bartosz Golaszewski

gpio: add GPIO controller found on Waveshare DSI TOUCH panels

2026-05-11T07:56:28+00:00

The Waveshare DSI TOUCH family of panels has separate on-board GPIO
controller, which controls power supplies to the panel and the touch
screen and provides reset pins for both the panel and the touchscreen.
Also it provides a simple PWM controller for panel backlight. Add
support for this GPIO controller.

Tested-by: Riccardo Mereu 
Reviewed-by: Linus Walleij 
Signed-off-by: Dmitry Baryshkov 
Link: https://patch.msgid.link/20260507-waveshare-dsi-touch-v5-2-d2ac7ccc22d4@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski

gpio: sim: add a Kconfig dependency on SYSFS

2026-05-05T10:50:42+00:00

gpio-sim is unusable without sysfs. Add a Kconfig dependency to its
entry.

Closes: https://sashiko.dev/#/patchset/20260428113439.9783-1-m32285159%40gmail.com
Reviewed-by: Linus Walleij 
Link: https://patch.msgid.link/20260429080312.15561-1-bartosz.golaszewski@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski