lwn.git/drivers/iio/magnetometer/st_magn_i2c.c, branch v6.9-rc5

iio: Switch i2c drivers back to use .probe()

2023-05-21T17:54:53+00:00

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

iio: magnetometer: st_magn: Add LSM303C

2023-01-08T13:01:02+00:00

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: accel: st_magn: Convert to i2c's .probe_new()

2022-11-23T19:44:03+00:00

The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20221023132302.911644-23-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

iio:st-sensors: Move exports into IIO_ST_SENSORS namespace

2022-02-18T11:36:54+00:00

To avoid unnecessary pollution of the global symbol namespace move the driver core and type specific core exports into their a new namespace and import that where needed. For more info see https://lwn.net/Articles/760045/ Signed-off-by: Jonathan Cameron Cc: Andy Shevchenko Cc: Linus Walleij Cc: Denis Ciocca Link: https://lore.kernel.org/r/20220116180535.2367780-14-jic23@kernel.org

iio: st_sensors: remove all driver remove functions

2021-09-14T11:00:31+00:00

At this point all ST driver remove functions do iio_device_unregister(). This change removes them from them and replaces all iio_device_register() with devm_iio_device_register(). This can be done in a single change relatively easy, since all these remove functions are define in st_sensors.h. Reviewed-by: Andy Shevchenko Signed-off-by: Alexandru Ardelean Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20210823112204.243255-5-aardelean@deviqon.com Signed-off-by: Jonathan Cameron

iio: st_sensors: remove st_sensors_power_disable() function

2021-09-14T11:00:31+00:00

This change converts the st_sensors_power_enable() function to use devm_add_action_or_reset() handlers to register regulator_disable hooks for when the drivers get unloaded. The parent device of the IIO device object is used. This is based on the assumption that all other devm_ calls in the ST sensors use this reference. This makes the st_sensors_power_disable() un-needed. Removing this also changes unload order a bit, as all ST drivers would call st_sensors_power_disable() first and iio_device_unregister() after that. Reviewed-by: Andy Shevchenko Signed-off-by: Alexandru Ardelean Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20210823112204.243255-4-aardelean@deviqon.com Signed-off-by: Jonathan Cameron

iio: st_sensors: disable regulators after device unregistration

2021-09-14T11:00:31+00:00

Up until commit ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal to core") only the ST pressure driver seems to have had any regulator disable. After that commit, the regulator handling was moved into the common st_sensors logic. In all instances of this regulator handling, the regulators were disabled before unregistering the IIO device. This can cause issues where the device would be powered down and still be available to userspace, allowing it to send invalid/garbage data. This change moves the st_sensors_power_disable() after the common probe functions. These common probe functions also handle unregistering the IIO device. Fixes: 774487611c949 ("iio: pressure-core: st: Provide support for the Vdd power supply") Fixes: ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal to core") Cc: Lee Jones Cc: Denis CIOCCA Reviewed-by: Linus Walleij Reviewed-by: Andy Shevchenko Signed-off-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20210823112204.243255-2-aardelean@deviqon.com Signed-off-by: Jonathan Cameron

iio: st-sensors: Remove some unused includes and add some that should be there

2021-07-24T14:59:00+00:00

The st-sensors drivers have changed in structure over time, and includes have not always kept up with this. Let's bring them back to nearer the ideal. Identified with the include-what-you-use tool and careful checking of its suggestions. Note I haven't been particularly aggressive here, so this is just the cases where the include obviously isn't needed rather than the more subtle corners. Note I took the opportunity to add mod_devicetable.h as I generally prefer to see that when acpi or of match tables are present. Signed-off-by: Jonathan Cameron Cc: Linus Walleij Cc: Denis Ciocca Cc: Hans de Goede Acked-by: Linus Walleij Link: https://lore.kernel.org/r/20210608175149.4019289-1-jic23@kernel.org

iio: st_sensors: Call st_sensors_power_enable() from bus drivers

2021-05-17T12:54:22+00:00

In case we would initialize two IIO devices from one physical device, we shouldn't have a clash on regulators. That's why move st_sensors_power_enable() call from core to bus drivers. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210414195454.84183-4-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron

iio:magnetometer: Add Support for ST IIS2MDC

2021-03-25T19:13:52+00:00

Add support for ST magnetometer IIS2MDC, an I2C/SPI interface 3-axis magnetometer. The patch was tested on the instrument with IIS2MDC via I2C interface. Signed-off-by: LI Qingwu Link: https://lore.kernel.org/r/20210317063902.19300-3-Qing-wu.Li@leica-geosystems.com.cn Signed-off-by: Jonathan Cameron