iio: magnetometer: si7210: add driver for Si7210

Silicon Labs Si7210 is an I2C Hall effect magnetic position and
temperature sensor. The driver supports the following functionalities:
* reading the

iio: magnetometer: si7210: add driver for Si7210

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 <[email protected]>
Signed-off-by: Antoni Pokusinski <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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

The Allegro MicroSystems ALS31300 is a 3-D Linear Hall Effect Sensor
mainly used for 3D head-on motion sensing appl

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

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 <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
Link: https://patch.msgid.link/20241030-topic-input-upstream-als31300-v4-3-494297c9e50a@linaro.org
Signed-off-by: Jonathan Cameron <[email protected]>

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

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BU

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

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 <[email protected]>
Reviewed-by: Andrey Skvortsov <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: ak8975: Add AK09118 support

Add additional AK09118 to the magnetometer driver which has the same
register mapping and scaling as the AK09112 device.

Signed-off-by: Danila Tikhono

iio: magnetometer: ak8975: Add AK09118 support

Add additional AK09118 to the magnetometer driver which has the same
register mapping and scaling as the AK09112 device.

Signed-off-by: Danila Tikhonov <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Barnabás Czémán <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: add a driver for Voltafield AF8133J magnetometer

AF8133J is a simple I2C-connected magnetometer, without interrupts.

Add a simple IIO driver for it.

Signed-off-by: Icenowy Zheng

iio: magnetometer: add a driver for Voltafield AF8133J magnetometer

AF8133J is a simple I2C-connected magnetometer, without interrupts.

Add a simple IIO driver for it.

Signed-off-by: Icenowy Zheng <[email protected]>
Signed-off-by: Dalton Durst <[email protected]>
Signed-off-by: Shoji Keita <[email protected]>
Co-developed-by: Ondrej Jirman <[email protected]>
Signed-off-by: Ondrej Jirman <[email protected]>
Reviewed-by: Andrey Skvortsov <[email protected]>
Tested-by: Andrey Skvortsov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: st_magn: Add LSM303C

The magnetometer part of ST LSM303C is similar (perhaps even identical)
to the already supported standalone LIS3MDL magnetometer, so just
add the new st,lsm30

iio: magnetometer: st_magn: Add LSM303C

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 <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: add ti tmag5273 driver

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 rep

iio: magnetometer: add ti tmag5273 driver

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 <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: yas530: Add YAS537 variant

Add support for the magnetometer Yamaha YAS537. The additions are based on
comparison of Yamaha Android kernel drivers for YAS532 [1] and YAS537 [2].

I

iio: magnetometer: yas530: Add YAS537 variant

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 <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/264c6488733a5c32089c9ab406a5bcb808c48fef.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: ak8974: Drop dependency on OF

Nothing in this driver depends on OF firmware so drop the dependency
to remove the false impression such a dependency exists.

Signed-off-by: Andy Sh

iio: magnetometer: ak8974: Drop dependency on OF

Nothing in this driver depends on OF firmware so drop the dependency
to remove the false impression such a dependency exists.

Signed-off-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: st_sensors: don't always auto-enable I2C and SPI interface drivers

This patch makes I2C and SPI interface drivers for STMicroelectronics
sensor chips individually selectable via Kconfig.

The d

iio: st_sensors: don't always auto-enable I2C and SPI interface drivers

This patch makes I2C and SPI interface drivers for STMicroelectronics
sensor chips individually selectable via Kconfig.

The default is kept unchanged - I2C and SPI interface drivers are still
selected by default if the corresponding bus support is available.

However, the patch makes it possible to explicitly disable drivers
that are not needed for a particular target.

Signed-off-by: Nikita Yushchenko <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: ak8975: add AK09116 support

Add additional AK09116 to the magnetometer driver which has the same
register mapping and scaling as the AK09112 device.

Signed-off-by: Matt Ranostay

iio: magnetometer: ak8975: add AK09116 support

Add additional AK09116 to the magnetometer driver which has the same
register mapping and scaling as the AK09112 device.

Signed-off-by: Matt Ranostay <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensors: select IIO_TRIGGERED_BUFFER under HID_SENSOR_IIO_TRIGGER

During commit 067fda1c065ff ("iio: hid-sensors: move triggered buffer
setup into hid_sensor_setup_trigger"), the
iio_trigge

iio: hid-sensors: select IIO_TRIGGERED_BUFFER under HID_SENSOR_IIO_TRIGGER

During commit 067fda1c065ff ("iio: hid-sensors: move triggered buffer
setup into hid_sensor_setup_trigger"), the
iio_triggered_buffer_{setup,cleanup}() functions got moved under the
hid-sensor-trigger module.

The above change works fine, if any of the sensors get built. However, when
only the common hid-sensor-trigger module gets built (and none of the
drivers), then the IIO_TRIGGERED_BUFFER symbol isn't selected/enforced.

Previously, each driver would enforce/select the IIO_TRIGGERED_BUFFER
symbol. With this change the HID_SENSOR_IIO_TRIGGER (for the
hid-sensor-trigger module) will enforce that IIO_TRIGGERED_BUFFER gets
selected.

All HID sensor drivers select the HID_SENSOR_IIO_TRIGGER symbol. So, this
change removes the IIO_TRIGGERED_BUFFER enforcement from each driver.

Fixes: 067fda1c065ff ("iio: hid-sensors: move triggered buffer setup into hid_sensor_setup_trigger")
Reported-by: Thomas Deutschmann <[email protected]>
Cc: Srinivas Pandruvada <[email protected]>
Signed-off-by: Alexandru Ardelean <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: Add driver for Yamaha YAS530

This adds an IIO magnetometer driver for the Yamaha
YAS530 family of magnetometer/compass chips YAS530,
YAS532 and YAS533.

A quick survey of the sour

iio: magnetometer: Add driver for Yamaha YAS530

This adds an IIO magnetometer driver for the Yamaha
YAS530 family of magnetometer/compass chips YAS530,
YAS532 and YAS533.

A quick survey of the source code released by different
vendors reveal that we have these variants in the family
with some deployments listed:

* YAS529 MS-3C (2005 Samsung Aries)
* YAS530 MS-3E (2011 Samsung Galaxy S Advance)
* YAS532 MS-3R (2011 Samsung Galaxy S4)
* YAS533 MS-3F (Vivo 1633, 1707, V3, Y21L)
* (YAS534 is a magnetic switch)
* YAS535 MS-6C
* YAS536 MS-3W
* YAS537 MS-3T (2015 Samsung Galaxy S6, Note 5)
* YAS539 MS-3S (2018 Samsung Galaxy A7 SM-A750FN)

The YAS529 is so significantly different from the
YAS53x variants that it will require its own driver.
The YAS537 and YAS539 have slightly different register
sets but have strong similarities so a common driver
patching this one will probably be reasonable.

The source code for Samsung Galaxy A7's YAS539 is not
that is significantly different from the YAS530 in the
Galaxy S Advance, so I believe we will only need this
one driver with quirks to handle all of them.

The YAS539 is actively announced on Yamaha's devices
site:
https://device.yamaha.com/en/lsi/products/e_compass/

This is a driver written from scratch using buffered
IIO and runtime PM handling regulators and reset.

Thanks to Andy Shevchenko for great help in finding all
the special kernel infrastructure functions and quirks
during review of this driver.

Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Cc: [email protected]
Cc: Jonathan Bakker <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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iio: magnetometer: Add driver support for PNI RM3100

PNI RM3100 is a high resolution, large signal immunity magnetometer,
composed of 3 single sensors and a processing chip with a MagI2C
interface.

iio: magnetometer: Add driver support for PNI RM3100

PNI RM3100 is a high resolution, large signal immunity magnetometer,
composed of 3 single sensors and a processing chip with a MagI2C
interface.

Following functions are available:
- Single-shot measurement from
/sys/bus/iio/devices/iio:deviceX/in_magn_{axis}_raw
- Triggerd buffer measurement.
- DRDY pin for data ready trigger.
- Both i2c and spi interface are supported.
- Both interrupt and polling measurement is supported, depends on if
the 'interrupts' in DT is declared.

Signed-off-by: Song Qiang <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: ak8974: support AMI306 variant

Add support for AMI306 magnetometer - very similar to AMI305.

Signed-off-by: Michał Mirosław <[email protected]>
Reviewed-by: Linus Walleij <

iio: magnetometer: ak8974: support AMI306 variant

Add support for AMI306 magnetometer - very similar to AMI305.

Signed-off-by: Michał Mirosław <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magn: add a driver for AK8974

This adds a driver for the Asahi Kasei AK8974 and its sibling
AMI305 magnetometers. It was deployed on scale in 2009 on a
multitude of devices. It is distincly dif

iio: magn: add a driver for AK8974

This adds a driver for the Asahi Kasei AK8974 and its sibling
AMI305 magnetometers. It was deployed on scale in 2009 on a
multitude of devices. It is distincly different from AK8973
and AK8975 and needs its own driver.

This patch is based on the long lost work of Samu Onkalo at Nokia,
who made a misc character device driver for the Maemo/MeeGo Nokia
devices, before the time of the IIO subsystem. It was mounted in e.g.
the Nokia N950, N8, N86, N97 etc. It is also mounted on the
ST-Ericsson HREF reference designs.

It works nicely in sysfs:

$ cat in_magn_x_raw && cat in_magn_y_raw && cat in_magn_z_raw
-55
-101
161

And with buffered reads using a simple HRTimer trigger:
$ generic_buffer -c10 -a -n ak8974 -t foo
iio device number being used is 3
iio trigger number being used is 2
No channels are enabled, enabling all channels
Enabling: in_magn_x_en
Enabling: in_magn_y_en
Enabling: in_magn_z_en
Enabling: in_timestamp_en
/sys/bus/iio/devices/iio:device3 foo
-58.000000 -102.000000 157.000000 946684970985321044
-60.000000 -98.000000 159.000000 946684971012237548
-60.000000 -106.000000 163.000000 946684971032257080
-62.000000 -94.000000 169.000000 946684971052185058
-58.000000 -98.000000 163.000000 946684971072204589
-54.000000 -100.000000 163.000000 946684971092224121
-53.000000 -103.000000 164.000000 946684971112731933
-50.000000 -102.000000 165.000000 946684971132232666
-61.000000 -101.000000 164.000000 946684971152191162
-57.000000 -99.000000 168.000000 946684971172210693
Disabling: in_magn_x_en
Disabling: in_magn_y_en
Disabling: in_magn_z_en
Disabling: in_timestamp_en

I cannot currently scale these raw values to gauss. This is
because of lack of documentation. I have sent a request for
a datasheet to Asahi Kasei.

The driver can optionally use a DRDY line IRQ to capture data,
else it will sleep and poll.

Cc: Samu Onkalo <[email protected]>
Cc: Sebastian Reichel <[email protected]>
Cc: Peter Meerwald-Stadler <[email protected]>
Tested-By: Sebastian Reichel <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: bmc150: Document Bosch supported chips

bmc150 driver supports also BMC156 and BMM150 chips.

Signed-off-by: Daniel Baluta <[email protected]>
Signed-off-by: Jonathan Cameron

iio: magnetometer: bmc150: Document Bosch supported chips

bmc150 driver supports also BMC156 and BMM150 chips.

Signed-off-by: Daniel Baluta <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magn: bmc150: Introduce SPI support

Signed-off-by: Daniel Baluta <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

iio: magn: Split bmc150 driver in common/i2c parts

This is useful for easily adding SPI support in later patches.

Now bmc150_magn exports core functions to be used by I2C/SPI drivers
instances. For

iio: magn: Split bmc150 driver in common/i2c parts

This is useful for easily adding SPI support in later patches.

Now bmc150_magn exports core functions to be used by I2C/SPI drivers
instances. For the moment only I2C driver is supported.

Signed-off-by: Daniel Baluta <[email protected]>
Acked-by: Irina Tirdea <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio:magnetometer:ak8975: triggered buffer support

This will be used together with an external trigger (e.g hrtimer based
software trigger).

Signed-off-by: Gregor Boirie <[email protected]>
S

iio:magnetometer:ak8975: triggered buffer support

This will be used together with an external trigger (e.g hrtimer based
software trigger).

Signed-off-by: Gregor Boirie <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hmc5843: Move hmc5843 out of staging

This patch moves hmc5843 driver from staging/iio/magnetometer
to iio/magnetometer, updates the corresponding Makefiles and
moves the hmc5843* entries to the

iio: hmc5843: Move hmc5843 out of staging

This patch moves hmc5843 driver from staging/iio/magnetometer
to iio/magnetometer, updates the corresponding Makefiles and
moves the hmc5843* entries to the 'Industrial I/O support ->
Magnetometer sensors' menu.

Signed-off-by: Cristina Moraru <[email protected]>
Cc: Daniel Baluta <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio:magnetometer:bmc150_magn: sort entry alphabetically

Sort the entry for bmc105_magn in Kconfig and Makefile to its correct
position. Also add the minor module information for completeness.

Fixes

iio:magnetometer:bmc150_magn: sort entry alphabetically

Sort the entry for bmc105_magn in Kconfig and Makefile to its correct
position. Also add the minor module information for completeness.

Fixes: c91746a2361d ("iio: magn: Add support for BMC150 magnetometer")

Signed-off-by: Hartmut Knaack <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio:magnetometer:bmc150_magn: add regmap dependency

bmc150_magn makes use of REGMAP_I2C, so select it to build always without
errors.

Fixes: c91746a2361d ("iio: magn: Add support for BMC150 magneto

iio:magnetometer:bmc150_magn: add regmap dependency

bmc150_magn makes use of REGMAP_I2C, so select it to build always without
errors.

Fixes: c91746a2361d ("iio: magn: Add support for BMC150 magnetometer")

Signed-off-by: Hartmut Knaack <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: magnetometer: Add support for MEMSIC MMC35240 sensor

Minimal implementation for MMC35240 3-axis magnetometer
sensor. It provides processed readings and possiblity to change
the sampling frequen

iio: magnetometer: Add support for MEMSIC MMC35240 sensor

Minimal implementation for MMC35240 3-axis magnetometer
sensor. It provides processed readings and possiblity to change
the sampling frequency.

Signed-off-by: Daniel Baluta <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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