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path: root/drivers/iio/accel/msa311.c
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2025-06-26iio: accel: msa311: use = { } instead of memset()David Lechner
Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-2-ebb2d0a24302@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-05-21iio: accel: Use iio_push_to_buffers_with_ts() to provide length for runtime ↵Jonathan Cameron
checks. This new function allows us to perform debug checks in the helper to ensure that the overrun does not occur. Use it in all the simple cases where either a static buffer or a structure is used in the drivers. Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250413103443.2420727-11-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-03-04iio: accel: msa311: Switch to sparse friendly iio_device_claim/release_direct()Jonathan Cameron
These new functions allow sparse to find failures to release direct mode reducing chances of bugs over the claim_direct_mode() functions that are deprecated. Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250217140135.896574-8-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-03-04iio: accel: msa311: Fix failure to release runtime pm if direct mode claim ↵Jonathan Cameron
fails. Reorder the claiming of direct mode and runtime pm calls to simplify handling a little. For correct error handling, after the reorder iio_device_release_direct_mode() must be claimed in an error occurs in pm_runtime_resume_and_get() Fixes: 1ca2cfbc0c33 ("iio: add MEMSensing MSA311 3-axis accelerometer driver") Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250217140135.896574-7-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-02-16iio: accel: msa311: convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://patch.msgid.link/20250212075223.4164-2-liubo03@inspur.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-10-28iio: accel: replace s64 __aligned(8) with aligned_s64Jonathan Cameron
e4ca0e59c394 ("types: Complement the aligned types with signed 64-bit one") introduced aligned_s64. Use it for all IIO accelerometer drivers. Reviewed-by: Nuno Sa <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://patch.msgid.link/20241020180720.496327-1-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-07-29iio: accel: msa311: make use of iio_for_each_active_channel()Nuno Sa
Use iio_for_each_active_channel() to iterate over active channels accessing '.masklength' so it can be annotated as __private when there are no more direct users of it. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Reviewed-by: Alexandru Ardelean <aardelean@baylibre.com> Link: https://patch.msgid.link/20240702-dev-iio-masklength-private-v1-10-98193bf536a6@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-06-25iio: accel: msa311: make use of regmap_clear_bits()Trevor Gamblin
Instead of using regmap_update_bits() and passing val = 0, use regmap_clear_bits(). Suggested-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://patch.msgid.link/20240617-review-v3-3-88d1338c4cca@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12iio: accel: msa311: Use correct header(s) instead of string_helpers.hAndy Shevchenko
There is nothing from string_helpers.h used in the driver, correct the header inclusion block accordingly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Dmitry Rokosov <ddrokosov@sberdevices.ru> Link: https://lore.kernel.org/r/20230808164152.66748-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-05-21iio: Switch i2c drivers back to use .probe()Uwe Kleine-König
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 <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-03-11iio: Rename iio_trigger_poll_chained and add kernel-docMehdi Djait
Rename the function to iio_trigger_poll_nested. Add kernel-doc with a note on the context where the function is expected to be called. Signed-off-by: Mehdi Djait <mehdi.djait.k@gmail.com> Link: https://lore.kernel.org/r/841b533cba28ca25a8e87280c44e45979166e8e2.1677761379.git.mehdi.djait.k@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23iio: accel: msa311: Use devm_regulator_get_enable()Jonathan Cameron
This driver only turns the power on at probe and off via a custom devm_add_action_or_reset() callback. The new devm_regulator_get_enable() replaces this boilerplate code. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Dmitry Rokosov <DDRokosov@sberdevices.ru> Reviewed-by: Dmitry Rokosov <ddrokosov@sberdevices.ru> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20221016163409.320197-6-jic23@kernel.org
2022-08-30iio: add MEMSensing MSA311 3-axis accelerometer driverDmitry Rokosov
MSA311 is a tri-axial, low-g accelerometer with I2C digital output for sensitivity consumer applications. It has dynamic user-selectable full scales range of +-2g/+-4g/+-8g/+-16g and allows acceleration measurements with output data rates from 1Hz to 1000Hz. This driver supports following MSA311 features: - IIO interface - Different power modes: NORMAL and SUSPEND (using pm_runtime) - ODR (Output Data Rate) selection - Scale and samp_freq selection - IIO triggered buffer, IIO reg access - NEW_DATA interrupt + trigger Below features to be done: - Motion Events: ACTIVE, TAP, ORIENT, FREEFALL - Low Power mode Datasheet: https://cdn-shop.adafruit.com/product-files/5309/MSA311-V1.1-ENG.pdf Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220822175011.2886-4-ddrokosov@sberdevices.ru Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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