kernel/drivers/iio/magnetometer/Kconfig, branch linux-rolling-lts

iio: magnetometer: add support for Infineon TLV493D 3D Magentic sensor

2025-09-10T18:47:05Z

The Infineon TLV493D is a Low-Power 3D Magnetic Sensor. The Sensor applications includes joysticks, control elements (white goods, multifunction knops), or electric meters (anti tampering) and any other application that requires accurate angular measurements at low power consumptions. The Sensor is configured over I2C, and as part of Sensor measurement data it provides 3-Axis magnetic fields and temperature core measurement. The driver supports raw value read and buffered input via external trigger to allow streaming values with the same sensing timestamp. While the sensor has an interrupt pin multiplexed with an I2C SCL pin. But for bus configurations interrupt(INT) is not recommended, unless timing constraints between I2C data transfers and interrupt pulses are monitored and aligned. The Sensor's I2C register map and mode information is described in product User Manual [1]. Datasheet: https://www.infineon.com/assets/row/public/documents/24/49/infineon-tlv493d-a1b6-datasheet-en.pdf Link: https://www.mouser.com/pdfDocs/Infineon-TLV493D-A1B6_3DMagnetic-UserManual-v01_03-EN.pdf [1] Signed-off-by: Dixit Parmar Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250906-tlv493d-sensor-v6_16-rc5-v6-2-b1a62d968353@gmail.com Signed-off-by: Jonathan Cameron

iio: magnetometer: Fix spelling mistake "Magenetometer" -> "Magnetometer"

2025-08-16T10:57:05Z

There is a spelling mistake in the HID_SENSOR_MAGNETOMETER_3D Kconfig, fix it. Signed-off-by: Colin Ian King Link: https://patch.msgid.link/20250724104743.139892-1-colin.i.king@gmail.com Signed-off-by: Jonathan Cameron

iio: magnetometer: si7210: add driver for Si7210

2025-02-08T15:16:28Z

Silicon Labs Si7210 is an I2C Hall effect magnetic position and temperature sensor. The driver supports the following functionalities: * reading the temperature measurements * reading the magnetic field measurements in a single-shot mode * choosing the magnetic field measurement scale (20 or 200 mT) Reviewed-by: Andy Shevchenko Signed-off-by: Antoni Pokusinski Link: https://patch.msgid.link/20250120215620.39766-3-apokusinski01@gmail.com Signed-off-by: Jonathan Cameron

iio: magnetometer: add Allegro MicroSystems ALS31300 3-D Linear Hall Effect driver

2024-11-03T20:33:44Z

The Allegro MicroSystems ALS31300 is a 3-D Linear Hall Effect Sensor mainly used for 3D head-on motion sensing applications. The device is configured over I2C, and as part of the Sensor data the temperature core is also provided. While the device provides an IRQ gpio, it depends on a configuration programmed into the internal EEPROM, thus only the default mode is supported and buffered input via trigger is also supported to allow streaming values with the same sensing timestamp. The device can be configured with different sensitivities in factory, but the sensitivity value used to calculate value into the Gauss unit is not available from registers, thus the sensitivity is provided by the compatible/device-id string which is based on the part number as described in the datasheet page 2. Reviewed-by: Andy Shevchenko Signed-off-by: Neil Armstrong Link: https://patch.msgid.link/20241030-topic-input-upstream-als31300-v4-3-494297c9e50a@linaro.org Signed-off-by: Jonathan Cameron

iio: magnetometer: af8133j: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

2024-10-06T15:29:46Z

This driver makes use of triggered buffers, but does not select the required modules. Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'. Fixes: 1d8f4b04621f ("iio: magnetometer: add a driver for Voltafield AF8133J magnetometer") Signed-off-by: Javier Carrasco Reviewed-by: Andrey Skvortsov Link: https://patch.msgid.link/20241003-iio-select-v1-11-67c0385197cd@gmail.com Cc: Signed-off-by: Jonathan Cameron

iio: magnetometer: ak8975: Add AK09118 support

2024-09-03T17:49:43Z

Add additional AK09118 to the magnetometer driver which has the same register mapping and scaling as the AK09112 device. Signed-off-by: Danila Tikhonov Acked-by: Krzysztof Kozlowski Signed-off-by: Barnabás Czémán Link: https://patch.msgid.link/20240819-ak09918-v4-4-f0734d14cfb9@mainlining.org Signed-off-by: Jonathan Cameron

iio: magnetometer: add a driver for Voltafield AF8133J magnetometer

2024-02-28T19:26:37Z

AF8133J is a simple I2C-connected magnetometer, without interrupts. Add a simple IIO driver for it. Signed-off-by: Icenowy Zheng Signed-off-by: Dalton Durst Signed-off-by: Shoji Keita Co-developed-by: Ondrej Jirman Signed-off-by: Ondrej Jirman Reviewed-by: Andrey Skvortsov Tested-by: Andrey Skvortsov Link: https://lore.kernel.org/r/20240222011341.3232645-4-megi@xff.cz Signed-off-by: Jonathan Cameron

iio: magnetometer: st_magn: Add LSM303C

2023-01-08T13:01:02Z

The magnetometer part of ST LSM303C is similar (perhaps even identical) to the already supported standalone LIS3MDL magnetometer, so just add the new st,lsm303c-magn compatible for the existing definitions. Signed-off-by: Stephan Gerhold Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20230106102239.9647-4-stephan@gerhold.net Signed-off-by: Jonathan Cameron

iio: magnetometer: add ti tmag5273 driver

2022-12-28T17:19:44Z

Add support for TI TMAG5273 Low-Power Linear 3D Hall-Effect Sensor. Additionally to temperature and magnetic X, Y and Z-axes the angle and magnitude are reported. The sensor is operating in continuous measurement mode and changes to sleep mode if not used for 5 seconds. Datasheet: https://www.ti.com/lit/gpn/tmag5273 Signed-off-by: Gerald Loacker Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20221201072220.402585-4-gerald.loacker@wolfvision.net Signed-off-by: Jonathan Cameron

iio: magnetometer: yas530: Add YAS537 variant

2022-08-15T21:30:04Z

Add support for the magnetometer Yamaha YAS537. The additions are based on comparison of Yamaha Android kernel drivers for YAS532 [1] and YAS537 [2]. In the Yamaha YAS537 Android driver, there is an overflow/underflow control implemented. For regular usage, this seems not necessary. A similar overflow/ underflow control of Yamaha YAS530/532 Android driver isn't integrated in the mainline driver. It is therefore skipped for YAS537 in the mainline too. Also in the Yamaha YAS537 Android driver, at the end of the reset_yas537() function, a measurement is saved in "last_after_rcoil". Later on, this is compared to current measurements. If the difference gets too big, a new reset is initialized. The difference in measurements needs to be quite big, it's hard to say if this is necessary for regular operation. Therefore this isn't integrated in the mainline driver either. [1] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/GT-I9195I/drivers/iio/magnetometer/yas_mag_drv-yas532.c [2] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/GT-I9195I/drivers/iio/magnetometer/yas_mag_drv-yas537.c Signed-off-by: Jakob Hauser Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/264c6488733a5c32089c9ab406a5bcb808c48fef.1660337264.git.jahau@rocketmail.com Signed-off-by: Jonathan Cameron