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path: root/drivers/iio
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2025-06-26iio: health: afe4403: convert to use maple tree register cachechuguangqing
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: chuguangqing <chuguangqing@inspur.com> Link: https://patch.msgid.link/20250611085838.4761-5-chuguangqing@inspur.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: dac: bd79703: convert to use maple tree register cachechuguangqing
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: chuguangqing <chuguangqing@inspur.com> Link: https://patch.msgid.link/20250611085838.4761-4-chuguangqing@inspur.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: dac: ad5380: convert to use maple tree register cachechuguangqing
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: chuguangqing <chuguangqing@inspur.com> Link: https://patch.msgid.link/20250611085838.4761-3-chuguangqing@inspur.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: chemical: bme680: convert to use maple tree register cachechuguangqing
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: chuguangqing <chuguangqing@inspur.com> Link: https://patch.msgid.link/20250611085838.4761-2-chuguangqing@inspur.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: adc: ad7173: check return value of spi_setup()David Lechner
Check the return value of spi_setup() and propagate the error in the ad7173_probe() function. This is unlikely to happen since virtually every SPI controller supports SPI_MODE_3, but still always a good idea to check the return value. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250611-iio-adc-ad7173-check-spi_setup-return-v1-1-4d6f9ef0a2e4@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: trigger: stm32-lptimer: Fix build warnings about export.hAntonio Borneo
After commit a934a57a42f6 ("scripts/misc-check: check missing #include <linux/export.h> when W=1") and commit 7d95680d64ac ("scripts/misc-check: check unnecessary #include <linux/export.h> when W=1") we get the build warning with W=1: drivers/iio/trigger/stm32-lptimer-trigger.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing Fix it. Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Acked-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://patch.msgid.link/20250610124855.269158-5-antonio.borneo@foss.st.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: trigger: stm32-timer: Fix build warnings about export.hAntonio Borneo
After commit a934a57a42f6 ("scripts/misc-check: check missing #include <linux/export.h> when W=1") and commit 7d95680d64ac ("scripts/misc-check: check unnecessary #include <linux/export.h> when W=1") we get the build warning with W=1: drivers/iio/trigger/stm32-timer-trigger.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing Fix it. Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Acked-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://patch.msgid.link/20250610124855.269158-4-antonio.borneo@foss.st.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: adc: stm32-dfsdm: Fix build warnings about export.hAntonio Borneo
After commit a934a57a42f6 ("scripts/misc-check: check missing #include <linux/export.h> when W=1") and commit 7d95680d64ac ("scripts/misc-check: check unnecessary #include <linux/export.h> when W=1") we get the build warnings with W=1: drivers/iio/adc/stm32-dfsdm-adc.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/iio/adc/stm32-dfsdm-core.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing Fix them. Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Acked-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://patch.msgid.link/20250610124855.269158-3-antonio.borneo@foss.st.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: potentiometer: Drop unused export.h includesJonathan Cameron
Resolves: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present Reviewed-by: Andy Shevchenko <andy@kernel.org> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://patch.msgid.link/20250609070616.3923709-2-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: adc: ad7405: add ad7405 driverPop Ioan Daniel
Add support for the AD7405/ADUM770x, a high performance isolated ADC, 1-channel, 16-bit with a second-order Σ-Δ modulator that converts an analog input signal into a high speed, single-bit data stream. Signed-off-by: Pop Ioan Daniel <pop.ioan-daniel@analog.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://patch.msgid.link/20250605150948.3091827-6-pop.ioan-daniel@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: adc: adi-axi-adc: add axi_adc_oversampling_ratio_setPop Ioan Daniel
Add support for setting decimation rate. Reviewed-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Pop Ioan Daniel <pop.ioan-daniel@analog.com> Link: https://patch.msgid.link/20250605150948.3091827-4-pop.ioan-daniel@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: backend: update iio_backend_oversampling_ratio_setPop Ioan Daniel
Add chan parameter to iio_backend_oversampling_ratio_set() to allow for contexts where the channel must be specified. Modify all existing users. Reviewed-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Pop Ioan Daniel <pop.ioan-daniel@analog.com> Link: https://patch.msgid.link/20250605150948.3091827-3-pop.ioan-daniel@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: adc: ad4851: ad4851_set_oversampling_ratio parameters updatePop Ioan Daniel
Remove chan parameter from ad4851_set_oversampling_ratio parameters list because the parameter is not used. Reviewed-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Pop Ioan Daniel <pop.ioan-daniel@analog.com> Link: https://patch.msgid.link/20250605150948.3091827-2-pop.ioan-daniel@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: accel: adxl313: add debug registerLothar Rubusch
Add IIO debug register for general sensor debugging. Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com> Link: https://patch.msgid.link/20250601172139.59156-2-l.rubusch@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: cros_ec_sensors: add cros_ec_activity driverGwendal Grignou
ChromeOS EC can report activity information derived from the accelerometer: - Reports on-body/off-body as a proximity event. - Reports significant motion as an activity event. This new sensor is a virtual sensor, included only when the EC firmware is compiled with the appropriate module. Signed-off-by: Gwendal Grignou <gwendal@google.com> Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org> Link: https://patch.msgid.link/20250604053903.1376465-1-gwendal@google.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: adc: ti-ads131e08: Fix spelling mistake "tweek" -> "tweak"Colin Ian King
There is a spelling mistake in variable tweek_offset and in comment blocks. Fix these. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://patch.msgid.link/20250603165706.126031-1-colin.i.king@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-17sysfs: treewide: switch back to attribute_group::bin_attrsThomas Weißschuh
The normal bin_attrs field can now handle const pointers. This makes the _new variant unnecessary. Switch all users back. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20250530-sysfs-const-bin_attr-final-v3-4-724bfcf05b99@weissschuh.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-09iio: adc: ad7606: add gain calibration supportAngelo Dureghello
Add gain calibration support, using resistor values set on devicetree, values to be set accordingly with ADC external RFilter, as explained in the ad7606c-16 datasheet, rev0, page 37. Usage example in the fdt yaml documentation. Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-7-6e014a1f92a2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad7606: rename chan_scale to a more generic chan_infoAngelo Dureghello
Non functional, renaming chan-related chan_scale structure to a more generic chan_info, to host other chan specific settings, not just scale-related. Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-6-6e014a1f92a2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad7606: exit for invalid fdt dt_schema propertiesAngelo Dureghello
Fix ad7606_get_chan_config() fdt parsing function to exit for error in case of invalid dt_schema values. Idea is to not proceed when there are values that are not allowed under the dt_schema. Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-5-6e014a1f92a2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad7606: add offset and phase calibration supportAngelo Dureghello
Add support for offset and phase calibration, only for devices that support software mode, that are: ad7606b ad7606c-16 ad7606c-18 Tested-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-3-6e014a1f92a2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: core: add ADC delay calibration definitionAngelo Dureghello
ADCs as ad7606 implement a phase calibration as a delay. Add such definition, needed for ad7606. Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-2-6e014a1f92a2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad7768-1: Ensure SYNC_IN pulse minimum timing requirementJonathan Santos
The SYNC_IN pulse width must be at least 1.5 x Tmclk, corresponding to ~2.5 µs at the lowest supported MCLK frequency. Add a 3 µs delay to ensure reliable synchronization timing even for the worst-case scenario. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/d3ee92a533cd1207cf5c5cc4d7bdbb5c6c267f68.1749063024.git.Jonathan.Santos@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: bmi160: suspend and resume triggering on relevant pm operationsDenis Benato
Prevent triggers from stop working after the device has entered sleep: use iio_device_suspend_triggering and iio_device_resume_triggering helpers. Closes: https://lore.kernel.org/all/31d7f7aa-e834-4fd0-a66a-e0ff528425dc@gmail.com Signed-off-by: Denis Benato <benato.denis96@gmail.com> Link: https://patch.msgid.link/20250525142530.71955-3-benato.denis96@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: bmi270: suspend and resume triggering on relevant pm operationsDenis Benato
Prevent triggers from stop working after the device has entered sleep: use iio_device_suspend_triggering and iio_device_resume_triggering helpers. Closes: https://lore.kernel.org/all/31d7f7aa-e834-4fd0-a66a-e0ff528425dc@gmail.com Signed-off-by: Denis Benato <benato.denis96@gmail.com> Tested-by: Justin Weiss <justin@justinweiss.com> Link: https://patch.msgid.link/20250525142530.71955-2-benato.denis96@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad7606: add enabling of optional Vrefin voltageAngelo Dureghello
Add optional refin voltage enabling. The property "refin-supply" is already available and optional in the current fdt dt_schema. Note that the driver does not need to take any actions if the supply is not present because a pin strap is used to change the behavior of the device if an external reference is connected. Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Link: https://patch.msgid.link/20250530-wip-bl-ad7606-reference-voltages-v2-2-d5e1ad7e6f14@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad7606: enable Vdrive power supplyAngelo Dureghello
Enable Vdrive power supply. The "vdrive-supply" property is mandatory, already declared in fdt dt_schema. Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Link: https://patch.msgid.link/20250530-wip-bl-ad7606-reference-voltages-v2-1-d5e1ad7e6f14@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad7476: Support ROHM BU79100GMatti Vaittinen
ROHM BU79100G is a 12-bit, single channel ADC. From the software point of view it is identical to the TI's ADS7866. Support reading ADC measurements using the ad7476.c Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://patch.msgid.link/aDk2qNE9LTVnfAFM@mva-rohm Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: Remove unused macro definition for driver and IRQ nameWaqar Hameed
These macro definitions are completely unused. Remove them. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/0dec4fe7b2bdc90d06163ac75a53b97d4ae31c21.1748356671.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: Remove single use of macro definition for regmap nameWaqar Hameed
There is really no reason for having the `regmap` name as a macro definition if it is only used once directly in `struct regmap_config`. It is also more readable this way. Remove these macro definitions and instead use the string literal directly. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/3a8572de8316c7d2746c2ccea8c478f594221319.1748356671.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: Remove single use of macro definition for IRQ nameWaqar Hameed
There is really no reason for having the IRQ name as a macro definition if it is only used once (often in functions requesting the IRQ). It is also more readable this way. Remove these macro definitions and instead use the string literal directly. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/3dc06cb2a83d292c50d9758643aad37ca5c6d95c.1748356671.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: Remove single use of macro definition for driver nameWaqar Hameed
There is really no reason for having the driver name as a macro definition if it is only used once (often as `.name` in `struct device_driver`). It is also more readable this way. Remove these macro definitions and instead use the string literal directly. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/4840779a167e027b8be77c82f7a4f27210ef084a.1748356671.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: imu: inv_mpu6050: refactor aux read/write to use shared xfer logicIsabella Caselli
Refactors inv_mpu_aux_read() and inv_mpu_aux_write() to extract the common I2C transfer sequence into inv_mpu_i2c_master_xfer(), which now handles starting and stopping the I2C master, waiting for completion, disabling SLV0, and checking for NACK errors. This refactoring removes code duplication and improves maintainability. No functional changes are intended. Signed-off-by: Isabella Caselli <bellacaselli20@gmail.com> Co-developed-by: Rodrigo Michelassi <rodrigo.michelassi@usp.br> Signed-off-by: Rodrigo Michelassi <rodrigo.michelassi@usp.br> Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com> Link: https://patch.msgid.link/20250507184539.54658-1-bellacaselli20@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: buffer: Fix checkpatch.pl warningGyeyoung Baek
Remove the following trivial warning: "WARNING: Block comments should align the * on each line" Signed-off-by: Gyeyoung Baek <gye976@gmail.com> Link: https://patch.msgid.link/20250519-timestamp-v1-1-fcb4f6c2721c@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: amplifiers: ada4250: use DMA-safe memory for regmap_bulk_read()David Lechner
Use DMA-safe memory instead of stack-allocated memory for the call to regmap_bulk_read() in the ada4250_init() function as this could be used directly by a SPI controller. Also remove unnecessary use of get_unaligned_le16() and explicitly include linux/types.h e.g. for __le16 while we are fixing this up. Note this is DMA issue does not appear to be an actual bug due to internals of the regmap SPI implementation. However, for IIO we are following guidance that we should not make that assumption. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250418-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v1-1-7e7bd6dad423@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: accel: adxl345: add g-range configurationLothar Rubusch
Introduce a mechanism to be able to configure and work with the available g-ranges keeping the precision of 13 digits. Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com> Link: https://patch.msgid.link/20250510224405.17910-3-l.rubusch@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: accel: adxl345: extend sample frequency adjustmentsLothar Rubusch
Introduce enums and functions to work with the sample frequency adjustments. Let the sample frequency adjust via IIO and configure a reasonable default. Replace the old static sample frequency handling. During adjustment of bw registers, measuring is disabled and afterwards enabled again. Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com> Link: https://patch.msgid.link/20250510224405.17910-2-l.rubusch@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: dac: adi-axi-dac: use unique bus free checkAngelo Dureghello
Use a unique function for the bus free check by polling, to reduce duplicated code. An error is always thrown in case of timeout. Signed-off-by: Angelo Dureghello <adureghello@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://patch.msgid.link/20250523-ad3552r-fix-bus-read-v3-2-310e726dd964@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: ad4080: add driver supportAntoniu Miclaus
Add support for AD4080 high-speed, low noise, low distortion, 20-bit, Easy Drive, successive approximation register (SAR) analog-to-digital converter (ADC). Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20250516082630.8236-10-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: adi-axi-adc: add num lanes supportAntoniu Miclaus
Add support for setting the number of lanes enabled. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20250516082630.8236-8-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: adi-axi-adc: add data align processAntoniu Miclaus
Add support for starting the sync process used for data capture alignment. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20250516082630.8236-7-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: adi-axi-adc: add filter type configAntoniu Miclaus
Add support for enabling/disabling filter based on the filter type provided. This feature is specific to the axi ad408x IP core, therefore add new compatible string and corresponding iio_backend_ops. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20250516082630.8236-6-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: backend: add support for number of lanesAntoniu Miclaus
Add iio backend support for number of lanes to be enabled. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20250516082630.8236-4-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: backend: add support for data alignmentAntoniu Miclaus
Add backend support for staring the capture synchronization. When activated, it initates a proccess that aligns the sample's most significant bit (MSB) based solely on the captured data, without considering any other external signals. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20250516082630.8236-3-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: backend: add support for filter configAntoniu Miclaus
Add backend support for digital filter type selection. This setting can be adjusted within the IP cores interfacing devices. The IP core can be configured based on the state of the actual digital filter configuration of the part. Reviewed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20250516082630.8236-2-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: irsd200: Remove print of error code from dev_err_probeWaqar Hameed
Since `dev_err_probe()` already prints the error code, there is no need to additionally print it in the error message. Therefore, just remove them. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/83c5ed21654b1b98437247d0fef823237af641b4.1747415559.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: max1363: Reorder mode_list[] entriesFabio Estevam
The IIO core issues warnings when a scan mask is a subset of a previous entry in the available_scan_masks array. On a board using a MAX11601, the following warning is observed: max1363 1-0064: available_scan_mask 7 subset of 6. Never used This occurs because the entries in the max11607_mode_list[] array are not ordered correctly. To fix this, reorder the entries so that no scan mask is a subset of an earlier one. While at it, reorder the mode_list[] arrays for other supported chips as well, to prevent similar warnings on different variants. Note fixes tag dropped as these were introduced over many commits a long time back and the side effect until recently was a reduction in sampling rate due to reading too many channels when only a few were desired. Now we have a sanity check that reports this error but that is not where the issue was introduced. Cc: stable@vger.kernel.org Signed-off-by: Fabio Estevam <festevam@denx.de> Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://patch.msgid.link/20250516173900.677821-2-festevam@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: max1363: Fix MAX1363_4X_CHANS/MAX1363_8X_CHANS[]Fabio Estevam
Since commit 2718f15403fb ("iio: sanity check available_scan_masks array"), booting a board populated with a MAX11601 results in a flood of warnings: max1363 1-0064: available_scan_mask 8 subset of 0. Never used max1363 1-0064: available_scan_mask 9 subset of 0. Never used max1363 1-0064: available_scan_mask 10 subset of 0. Never used max1363 1-0064: available_scan_mask 11 subset of 0. Never used max1363 1-0064: available_scan_mask 12 subset of 0. Never used max1363 1-0064: available_scan_mask 13 subset of 0. Never used ... These warnings are caused by incorrect offsets used for differential channels in the MAX1363_4X_CHANS() and MAX1363_8X_CHANS() macros. The max1363_mode_table[] defines the differential channel mappings as follows: MAX1363_MODE_DIFF_SINGLE(0, 1, 1 << 12), MAX1363_MODE_DIFF_SINGLE(2, 3, 1 << 13), MAX1363_MODE_DIFF_SINGLE(4, 5, 1 << 14), MAX1363_MODE_DIFF_SINGLE(6, 7, 1 << 15), MAX1363_MODE_DIFF_SINGLE(8, 9, 1 << 16), MAX1363_MODE_DIFF_SINGLE(10, 11, 1 << 17), MAX1363_MODE_DIFF_SINGLE(1, 0, 1 << 18), MAX1363_MODE_DIFF_SINGLE(3, 2, 1 << 19), MAX1363_MODE_DIFF_SINGLE(5, 4, 1 << 20), MAX1363_MODE_DIFF_SINGLE(7, 6, 1 << 21), MAX1363_MODE_DIFF_SINGLE(9, 8, 1 << 22), MAX1363_MODE_DIFF_SINGLE(11, 10, 1 << 23), Update the macros to follow this same pattern, ensuring that the scan masks are valid and preventing the warnings. Cc: stable@vger.kernel.org Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Fabio Estevam <festevam@denx.de> Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://patch.msgid.link/20250516173900.677821-1-festevam@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: adc: stm32-adc: Fix race in installing chained IRQ handlerChen Ni
Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Fixes: 1add69880240 ("iio: adc: Add support for STM32 ADC core") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Tested-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://patch.msgid.link/20250515083101.3811350-1-nichen@iscas.ac.cn Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: fix potential out-of-bound writeMarkus Burri
The buffer is set to 20 characters. If a caller write more characters, count is truncated to the max available space in "simple_write_to_buffer". To protect from OoB access, check that the input size fit into buffer and add a zero terminator after copy to the end of the copied data. Fixes: 6d5dd486c715 iio: core: make use of simple_write_to_buffer() Signed-off-by: Markus Burri <markus.burri@mt.com> Link: https://patch.msgid.link/20250508130612.82270-4-markus.burri@mt.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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