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David Lechner
a3e20daaa2 iio: adc: stm32-adc: use = { } instead of memset() 
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-v1-7-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:56 +01:00
David Lechner
708d98459d iio: adc: rtq6056: use = { } instead of memset() 
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-v1-6-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
David Lechner
dfa806ce04 iio: adc: rockchip_saradc: use = { } instead of memset() 
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-v1-5-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
David Lechner
b8f008100a iio: adc: mt6360-adc: use = { } instead of memset() 
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-v1-4-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
David Lechner
3a780d29ae iio: adc: dln2-adc: use = { } instead of memset() 
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-v1-3-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
David Lechner
08ef45efc2 iio: accel: msa311: use = { } instead of memset() 
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>
 2025-06-26 19:32:55 +01:00
David Lechner
f448fb868a iio: accel: adxl372: use = { } instead of memset() 
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-v1-1-ebb2d0a24302@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
Lothar Rubusch
e564c05401 iio: accel: adxl345: replace magic numbers by unit expressions 
Replace absolute numbers by their expressions from units.h to avoid
using magic numbers. Use uniform expressions to clarify their usage.

This is a refactoring change and should not impact functionality.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Link: https://patch.msgid.link/20250610215933.84795-7-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
Lothar Rubusch
f7f905f7a7 iio: accel: adxl345: simplify measure enable 
Simplify the function to enable or disable measurement. Replace the
separate decision logic and call to regmap_update_bits() by a single
call to regmap_assign_bits() taking a boolean argument directly.

This is a refactoring change and should not impact functionality.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Link: https://patch.msgid.link/20250610215933.84795-4-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
Lothar Rubusch
5decafde4d iio: accel: adxl345: make data struct variable irq function local 
Remove variable irq from the struct state and make it a function local
variable, because it is not necessary to be kept struct-wise.

This is a refactoring change and should not impact functionality.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Link: https://patch.msgid.link/20250610215933.84795-3-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
David Lechner
51180f03eb iio: amplifiers: ada4250: use dev_err_probe() 
Use dev_err_probe() when returning an error in the probe function.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-5-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
David Lechner
e905b3dd3a iio: amplifiers: ada4250: move offset_uv in struct 
Move offset_uv in struct ada4250_state. This keeps things logically
grouped and reduces holes in the struct.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-4-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:55 +01:00
David Lechner
3712f11b4e iio: amplifiers: ada4250: use devm_regulator_get_enable_read_voltage() 
Use devm_regulator_get_enable_read_voltage() to simplify the code.

Replace 1000000 with MICRO while we are touching this for better
readability.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-3-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
David Lechner
f8a7be248f iio: amplifiers: ada4250: don't fail on bad chip ID 
Only print an information message instead of error message and failing
to probe the device if the chip ID is not recognized. Experience shows
that this can be fragile and some devices may not return the expected
chip ID even though the driver is still able to work with them.

Suggested-by: Jonathan Cameron <jic23@kernel.org>
Closes: https://lore.kernel.org/linux-iio/20250421122409.79f5580c@jic23-huawei/
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-2-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
David Lechner
788d6060f1 iio: amplifiers: ada4250: used dev local variable 
Replace local spi variable with dev in ada4250_init() since spi is not
used directly.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-1-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Andrew Ijano
a80ad80f1b iio: accel: sca3000: replace error_ret labels by simple returns 
Replace usage of error_ret labels by returning directly when handling
errors. Cases that do a mutex unlock were not changed.

Signed-off-by: Andrew Ijano <andrew.lopes@alumni.usp.br>
Co-developed-by: Gustavo Bastos <gustavobastos@usp.br>
Signed-off-by: Gustavo Bastos <gustavobastos@usp.br>
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611194648.18133-2-andrew.lopes@alumni.usp.br
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Nattan Ferreira
6f6bf97823 iio: light: apds9306: Refactor threshold get/set functions to use helper 
Refactor the apds9306_event_thresh_get() and apds9306_event_thresh_set()
functions to use a helper function (apds9306_get_thresh_reg()) for
obtaining the correct register based on the direction of the event. This
improves code readability and maintains consistency in accessing
threshold registers.

Signed-off-by: Nattan Ferreira <nattanferreira58@gmail.com>
Co-developed-by: Lucas Antonio <lucasantonio.santos@usp.br>
Signed-off-by: Lucas Antonio <lucasantonio.santos@usp.br>
Acked-by: Subhajit Ghosh <subhajit.ghosh@tweaklogic.com>
Link: https://patch.msgid.link/20250611174253.16578-1-nattanferreira58@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Jonathan Santos
fb1d3b24eb iio: adc: ad7768-1: add filter type and oversampling ratio attributes 
Separate filter type and decimation rate from the sampling frequency
attribute. The new filter type attribute enables sinc3, sinc3+rej60
and wideband filters, which were previously unavailable.

Previously, combining decimation and MCLK divider in the sampling
frequency obscured performance trade-offs. Lower MCLK divider
settings increase power usage, while lower decimation rates reduce
precision by decreasing averaging. By creating an oversampling
attribute, which controls the decimation, users gain finer control
over performance.

The addition of those attributes allows a wider range of sampling
frequencies and more access to the device features. Sampling frequency
table is updated after every digital filter parameter change.

Changes in the sampling frequency are not allowed anymore while in
buffered mode.

Reviewed-by: David Lechner <dlechner@baylibre.com>
Co-developed-by: Pop Paul <paul.pop@analog.com>
Signed-off-by: Pop Paul <paul.pop@analog.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/cd3b60c44847d5c35cecc4385bbda6533be6825e.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Jonathan Santos
74e16c0cd6 iio: adc: ad7768-1: replace manual attribute declaration 
Use read_avail callback from struct iio_info to replace the manual
declaration of sampling_frequency_available attribute.

Reviewed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/b2653d270131b2c873373a6f81cde9a5bdf5d1ff.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Jonathan Santos
74790e84ff iio: adc: ad7768-1: add support for Synchronization over SPI 
The synchronization method using GPIO requires the generated pulse to be
truly synchronous with the base MCLK signal. When it is not possible to
do that in hardware, the datasheet recommends using synchronization over
SPI, where the generated pulse is already synchronous with MCLK. This
requires the SYNC_OUT pin to be connected to the SYNC_IN pin.

Use trigger-sources property to enable device synchronization over SPI
and multi-device synchronization while replacing sync-in-gpios property.

Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/05aea6d1551fce94f290d68f1dba548513e1632f.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Jonathan Santos
54da2aeb71 iio: adc: ad7768-1: add multiple scan types to support 16-bits mode 
When the device is configured to decimation x8, only possible in the
sinc5 filter, output data is reduced to 16 bits in order to support
1 MHz of sampling frequency due to clock limitation.

Use multiple scan types feature to enable the driver to switch
scan type at runtime, making it possible to support both 24-bit and
16-bit resolution.

Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/08780fd4a59885f1f250759ce655420bd1dbb383.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Sergiu Cuciurean
d569ae0f05 iio: adc: ad7768-1: Add GPIO controller support 
The AD7768-1 has the ability to control other local hardware (such as gain
stages),to power down other blocks in the signal chain, or read local
status signals over the SPI interface.

Add direct mode conditional locks in the GPIO callbacks to prevent register
access when the device is in buffered mode.

This change exports the AD7768-1's four GPIOs and makes them accessible
at an upper layer.

Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Co-developed-by: Jonathan Santos <Jonathan.Santos@analog.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Link: https://patch.msgid.link/8abca580f43cb31d7088d07a7414b5f7efe91ead.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Jonathan Santos
96b6e814af iio: adc: ad7768-1: add regulator to control VCM output 
The VCM output voltage can be used as a common-mode voltage within the
amplifier preconditioning circuits external to the AD7768-1.

This change allows the user to configure VCM output using the regulator
framework.

Acked-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Link: https://patch.msgid.link/1f02312fdc4131168b194d59f4b1688dc68ea36e.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:54 +01:00
Jonathan Santos
1905e6c9ce dt-bindings: iio: adc: ad7768-1: add trigger-sources property 
In addition to GPIO synchronization, The AD7768-1 also supports
synchronization over SPI, which use is recommended when the GPIO
cannot provide a pulse synchronous with the base MCLK signal. It
consists of looping back the SYNC_OUT to the SYNC_IN pin and send
a command via SPI to trigger the synchronization.

Introduce the 'trigger-sources' property to enable SPI-based
synchronization via SYNC_OUT pin, along with additional optional
entries for GPIO3 and DRDY pins.

Also create #trigger-source-cells property to differentiate the trigger
sources provided by the ADC. To improve readability, create a
adi,ad7768-1.h header with the macros for the cell values.

While at it, add description to the interrupts property.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: David Lechner <dlechner@baylirbe.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Link: https://patch.msgid.link/713fd786010c75858700efaec8bb285274e7057e.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
Jonathan Santos
1c01c449e3 dt-bindings: iio: adc: ad7768-1: Document GPIO controller 
The AD7768-1 ADC exports four bidirectional GPIOs accessible
via register map.

Document GPIO properties necessary to enable GPIO controller for this
device.

Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Link: https://patch.msgid.link/2ac34fc1e0b02886073ae0bb196c7e8d4d442c3f.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
Jonathan Santos
81d289c21e dt-bindings: iio: adc: ad7768-1: document regulator provider property 
The AD7768-1 provides a buffered common-mode voltage output
on the VCM pin that can be used to bias analog input signals.

Add regulators property to enable the use of the VCM output,
referenced here as vcm-output, by any other device.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Link: https://patch.msgid.link/33c02a1fb9d839f62da5237f9476ccbf14271b6d.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
Jonathan Santos
0dd88eaa71 dt-bindings: trigger-source: add generic GPIO trigger source 
Inspired by pwm-trigger, create a new binding for using a GPIO
line as a trigger source.

Link: https://lore.kernel.org/linux-iio/20250207-dlech-mainline-spi-engine-offload-2-v8-3-e48a489be48c@baylibre.com/
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Link: https://patch.msgid.link/c4a3a7c828c711b439d1893271b8376823176ea6.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
Jiri Slaby (SUSE)
a8daa0a8f1 iio: adc: stm32-adc: Use dev_fwnode() 
irq_domain_create_simple() takes fwnode as the first argument. It can be
extracted from the struct device using dev_fwnode() helper instead of
using of_node with of_fwnode_handle().

So use the dev_fwnode() helper.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250612084627.217341-1-jirislaby@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
chuguangqing
5cc2608766 iio: light: opt4060: convert to use maple tree register cache 
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/20250611085838.4761-11-chuguangqing@inspur.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
chuguangqing
f942862381 iio: light: ltr501: convert to use maple tree register cache 
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/20250611085838.4761-10-chuguangqing@inspur.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
chuguangqing
7eab62ecbc iio: light: isl29028: convert to use maple tree register cache 
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/20250611085838.4761-9-chuguangqing@inspur.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
chuguangqing
a5afaa5de3 iio: imu: bno055: convert to use maple tree register cache 
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/20250611085838.4761-8-chuguangqing@inspur.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
chuguangqing
3be2dd5185 iio: imu: icm42600: convert to use maple tree register cache 
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>
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://patch.msgid.link/20250611085838.4761-7-chuguangqing@inspur.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
chuguangqing
2619f7b14c iio: health: afe4404: convert to use maple tree register cache 
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/20250611085838.4761-6-chuguangqing@inspur.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:53 +01:00
chuguangqing
bc6c48bfad iio: health: afe4403: convert to use maple tree register cache 
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>
 2025-06-26 19:32:52 +01:00
chuguangqing
3547b9ab04 iio: dac: bd79703: convert to use maple tree register cache 
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>
 2025-06-26 19:32:52 +01:00
chuguangqing
cc42e969eb iio: dac: ad5380: convert to use maple tree register cache 
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>
 2025-06-26 19:32:52 +01:00
chuguangqing
5c3f062483 iio: chemical: bme680: convert to use maple tree register cache 
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>
 2025-06-26 19:32:52 +01:00
David Lechner
1763bd3a0c iio: adc: ad7173: check return value of spi_setup() 
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>
 2025-06-26 19:32:52 +01:00
Antonio Borneo
d657e251d9 iio: trigger: stm32-lptimer: Fix build warnings about export.h 
After commit a934a57a42 ("scripts/misc-check: check missing #include
<linux/export.h> when W=1") and commit 7d95680d64 ("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>
 2025-06-26 19:32:52 +01:00
Antonio Borneo
2628736bd4 iio: trigger: stm32-timer: Fix build warnings about export.h 
After commit a934a57a42 ("scripts/misc-check: check missing #include
<linux/export.h> when W=1") and commit 7d95680d64 ("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>
 2025-06-26 19:32:52 +01:00
Antonio Borneo
86c4903bb2 iio: adc: stm32-dfsdm: Fix build warnings about export.h 
After commit a934a57a42 ("scripts/misc-check: check missing #include
<linux/export.h> when W=1") and commit 7d95680d64 ("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>
 2025-06-26 19:32:52 +01:00
Jonathan Cameron
3ceb7cc345 iio: potentiometer: Drop unused export.h includes 
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>
 2025-06-26 19:32:52 +01:00
Pop Ioan Daniel
6a533f56b0 iio: adc: ad7405: add ad7405 driver 
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>
 2025-06-26 19:32:52 +01:00
Pop Ioan Daniel
dbcf839432 dt-bindings: iio: adc: add ad7405 
Add devicetree bindings for ad7405/adum770x family.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Pop Ioan Daniel <pop.ioan-daniel@analog.com>
Link: https://patch.msgid.link/20250605150948.3091827-5-pop.ioan-daniel@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-06-26 19:32:52 +01:00
Pop Ioan Daniel
dced5bda14 iio: adc: adi-axi-adc: add axi_adc_oversampling_ratio_set 
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>
 2025-06-26 19:32:51 +01:00
Pop Ioan Daniel
97e6882ed1 iio: backend: update iio_backend_oversampling_ratio_set 
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>
 2025-06-26 19:32:51 +01:00
Pop Ioan Daniel
56e5ec2d85 iio: adc: ad4851: ad4851_set_oversampling_ratio parameters update 
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>
 2025-06-26 19:32:51 +01:00
Lothar Rubusch
7b20d517b9 iio: accel: adxl313: add debug register 
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>
 2025-06-26 19:32:51 +01:00
Gwendal Grignou
c430955d0c iio: cros_ec_sensors: add cros_ec_activity driver 
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>
 2025-06-26 19:32:51 +01:00