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Author SHA1 Message Date
Lothar Rubusch
385eb69ee6 iio: accel: adxl313: add activity sensing 
Add support for configuring an activity detection threshold. Extend the
interrupt handler to process activity-related interrupts, and provide
functions to set the threshold as well as to enable or disable activity
sensing. Additionally, introduce a virtual channel that represents the
logical AND of the x, y, and z axes in the IIO channel.

This patch serves as a preparatory step; some definitions and functions
introduced here are intended to be extended later to support inactivity
detection.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250702230819.19353-5-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:27 +01:00
Lothar Rubusch
ff8093fa6b iio: accel: adxl313: add buffered FIFO watermark with interrupt handling 
Cover the following tasks:
- Add scan_mask and scan_index to the IIO channel configuration. The
scan_index sets up buffer usage. According to the datasheet, the ADXL313
uses a 13-bit wide data field in full-resolution mode. Set the
signedness, number of storage bits, and endianness accordingly.

- Parse the devicetree for an optional interrupt line and configure the
interrupt mapping based on its presence. If no interrupt line is
specified, keep the FIFO in bypass mode as currently implemented.

- Set up the interrupt handler. Add register access to detect and
evaluate interrupts. Implement functions to clear status registers and
reset the FIFO.

- Implement FIFO watermark configuration and handling. Allow the
watermark level to be set, evaluate the corresponding interrupt, read
the FIFO contents, and push the data to the IIO channel.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250702230819.19353-4-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
Lothar Rubusch
a157662341 iio: accel: adxl313: add function to enable measurement 
Refactor the control of measurement and standby modes for the sensor.
Instead of directly writing to the register, encapsulate this operation
in a dedicated function that handles enabling and disabling measurement.
This approach will reduce code duplication wherever sensor configuration
changes are required. In subsequent patches, measurement mode will be
set to standby as part of this process.

Additionally, simplify the control mask to include only the measurement
bit. The sleep bit governs a different behavior—putting the sensor into
sleep mode, not just standby for configuration—and is currently unused.
Therefore, there's no need to include both the sleep and measurement
bits in the same mask.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250702230819.19353-3-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
Lothar Rubusch
ec489d9157 iio: accel: adxl313: make use of regmap cache 
Setup regmap cache to cache register configuration, reducing bus traffic
for repeated accesses to non volatile registers.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250702230819.19353-2-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
AngeloGioacchino Del Regno
1a4deda6c6 iio: adc: mt6359: Add support for MediaTek MT6373 PMIC AUXADC 
MediaTek MT6373 is a PMIC found on MT8196/MT6991 board designs
and communicates with the SoC over SPMI.

This PMIC integrates an Auxiliary ADC (AUXADC) which has a grand
total of 54 channels, of which usually only 9 are used as this
is usually paired with MT6363 on the same board.

For the Auxiliary ADC part, this reuses the same register layout
as the MT6363 PMIC, but exposes only a subset of the ADC chans.

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-7-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
AngeloGioacchino Del Regno
d6f4931327 iio: adc: mt6359: Add support for MediaTek MT6363 PMIC AUXADC 
MediaTek MT6363 is a PMIC found on MT8196/MT6991 board designs
and communicates with the SoC over SPMI.

This PMIC integrates an Auxiliary ADC (AUXADC) which has a grand
total of 54 ADC channels: 49 PMIC-internal channels, 2 external
NTC thermistor channels and 2 generic ADC channels (mapped to 7
PMIC ADC external inputs).

To use a generic ADC channel it is necessary to enable one of
the PMIC ADC inputs at a time and only then start the reading,
so in this case it is possible to read only one external input
for each generic ADC channel.

Due to the lack of documentation, this implementation supports
using only one generic ADC channel, hence supports reading only
one external input at a time.

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-6-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
AngeloGioacchino Del Regno
dbcbed76d0 iio: adc: mt6359: Move reference voltage to platform data 
In preparation to add support for new PMICs, add a `vref_mv`
member to struct mtk_pmic_auxadc_info and use it in place of
the AUXADC_VOLT_FULL definition.

As a consequence, the definition was also removed.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-5-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
AngeloGioacchino Del Regno
f8bb423f49 iio: adc: mt6359: Add ready register index and mask to channel data 
In preparation for adding support for the AUXADC block found in
the MT6363 PMIC, add the ready register index and mask to the
mtk_pmic_auxadc_chan structure, populate those in the channel
description for all of the already supported SoCs and make use
of them in the .read_imp() callbacks.

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-4-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
AngeloGioacchino Del Regno
00da77d1d2 dt-bindings: iio: adc: mt6359: Add MT6373 PMIC AuxADC 
Add a compatible and channel bindings for MediaTek's MT6373 PMIC,
featuring an Auxiliary ADC IP with 15 ADC channels for external
(SoC) temperatures and external voltage inputs.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-3-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
AngeloGioacchino Del Regno
3df2817d5a dt-bindings: iio: adc: mt6359: Add MT6363 PMIC AuxADC 
Add a compatible and channel bindings for MediaTek's MT6363 PMIC,
featuring an Auxiliary ADC IP with 15 ADC channels used for both
internal temperatures and voltages and for external voltage inputs.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:26 +01:00
David Lechner
1b0dc93858 iio: adc: ad4000: don't use shift_right() 
Drop use of shift_right() macro for unsigned value. The shift_right()
macro is intended for signed values and is not needed for unsigned
values.

This was found by a static analysis tool [1].

Link: https://github.com/analogdevicesinc/linux/pull/2831/files#diff-c14a34a6492576d22e7192cc0f61ad0083190aeb627191596fe12462f0c6f21aR557 [1]
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250702-iio-adc-ad4000-don-t-use-shift_right-v1-1-041c2d6c3950@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
219da3ea84 iio: adc: ad_sigma_delta: add SPI offload support 
Add SPI offload support to the ad_sigma_delta module.

When the SPI controller has SPI offload capabilities, the module will
now use that for buffered reads instead of the RDY interrupt trigger.

Drivers that use the ad_sigma_delta module will have to opt into this
by setting supports_spi_offload since each driver will likely need
additional changes before SPI offload can be used. This will allow us
to gradually enable SPI offload support for each driver.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-11-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
db63e45a7d iio: adc: ad_sigma_delta: use spi_optimize_message() 
Use spi_optimize_message() to improve the performance of buffered reads.

By setting up the SPI message and pre-optimizing it in the buffer
postenable callback, we can reduce overhead during each sample read.

A rough estimate shows that this reduced the CPU usage of the interrupt
handler thread from 22% to 16% using an EVAL-AD4112ARDZ board on a
DE10-Nano (measuring a single channel at the default 6.2 kHz sample
rate).

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-8-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
1519bedf88 iio: adc: ad_sigma_delta: refactor setting read address 
Refactor code to set the read address in a separate function.

This code is already duplicated twice and we will need to use it a third
time in a later commit.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-7-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
86d8d6b8b9 iio: adc: ad_sigma_delta: audit included headers 
Drop linux/iio/sysfs.h since it is unused and replace linux/kernel.h
with more explicit headers. There are a couple of other headers added
weren't covered by kernel.h, like linux/gpio/consumer.h that are added
since the module makes use of those APIs as well.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-6-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
e916934b59 iio: adc: ad_sigma_delta: use BITS_TO_BYTES() macro 
Use the BITS_TO_BYTES() macro instead of dividing by 8 to convert bits
to bytes.

This makes it more obvious what unit conversion is taking place.

In one instance, we also avoid the temporary assignment to a variable
as it was confusing that reg_size was being used with two different
units (bits and bytes).

scan_type is factored out to reduce line wrapping.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-5-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
1a913da6cf iio: adc: ad_sigma_delta: use sizeof() in ALIGN() 
Use sizeof() instead of hardcoding the size of the timestamp in the
ALIGN() macro. This makes it a bit more obvious what the intention of
the code is.

Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-4-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
11d58620df iio: adc: ad_sigma_delta: use u8 instead of uint8_t 
Replace uint8_t with u8 in the ad_sigma_delta driver.

Technically, uint8_t comes from the C standard library, while u8 is a
Linux kernel type. Since we don't use the C standard library in the
kernel, we should use the kernel types instead.

There is also one instance where int64_t is replaced with s64.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-3-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:25 +01:00
David Lechner
67189665e0 iio: adc: ad_sigma_delta: sort includes 
Sort includes in alphabetical order and fix grouping before we add more.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-2-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
David Lechner
5a2f15c5a8 iio: adc: ad_sigma_delta: don't overallocate scan buffer 
Fix overallocating the size of the scan buffer by converting bits to
bytes. The size is meant to be in bytes, so scanbits needs to be
divided by 8.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-1-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
Chelsy Ratnawat
7bf7b62ee9 iio: imu: inv_mpu6050: Replace scnprintf with sysfs_emit 
Documentation/filesystems/sysfs.rst mentions that show() should only
use sysfs_emit() or sysfs_emit_at() when formating the value to be
returned to user space. So replace scnprintf() with sysfs_emit().

Signed-off-by: Chelsy Ratnawat <chelsyratnawat2001@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://patch.msgid.link/20250701154720.54276-1-chelsyratnawat2001@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
David Lechner
0f7797f6a8 iio: pressure: dlhl60d: Use separate structures rather than an array for chip info 
Change the dlhl60d driver to use individual chip info structures instead
of an array. This reduces the verbosity of the code. Also, the data is
now const as it should have been in the first place.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-24-v2-1-1c90073d1323@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
David Lechner
50df704303 iio: light: cm3232: make struct cm3232_als_info const 
Add const qualifier to struct cm3232_als_info. This is read-only data so
it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-20-v1-2-2bf90b03f9f1@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
David Lechner
8f02a8d6a7 iio: light: cm3232: move calibscale to struct cm3232_chip 
Move the calibscale field from struct cm3232_als_info to struct
cm3232_chip. The chip info struct is supposed to be const while the
driver data struct should contain mutable fields. Since calibscale
is a mutable field, it should be in the driver data struct.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-20-v1-1-2bf90b03f9f1@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
David Lechner
2ef920e0e5 iio: imu: adis16400: Use separate structures rather than an array for chip info 
Change the adis16400 driver to use individual chip info structures
instead of an array. This reduces the verbosity of the code. Also, the
data is now const as it should have been in the first place.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-17-v1-1-a215ebb653ec@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
Jonathan Santos
00a468c931 iio: adc: ad7768-1: add low pass -3dB cutoff attribute 
Ad7768-1 has a different -3db frequency multiplier depending on
the filter type configured. The cutoff frequency also varies according
to the current ODR.

Add a readonly low pass -3dB frequency cutoff attribute to clarify to
the user which bandwidth is being allowed depending on the filter
configurations.

Reviewed-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/804d66f1858014d7278aec3344d81c223661e878.1749569957.git.Jonathan.Santos@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
David Lechner
5eef68d672 iio: adc: ad7124: Use separate structures rather than array for chip info 
Change the ad7124 driver to use individual chip info structures instead
of an array. This reduces the verbosity of the code. Also, the data is
now const as it should have been in the first place.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-5-v1-1-9e56c2f77979@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:24 +01:00
David Lechner
b1a6eac557 iio: proximity: vcnl3020: make vcnl3020_property const 
Add const qualifier to struct vcnl3020_property
vcnl3020_led_current_property. This is read-only data so it can be made
const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-25-v1-2-5d99cf17790e@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:23 +01:00
David Lechner
96337ede94 iio: proximity: vcnl3020: pass struct vcnl3020_property by pointer 
Pass struct vcnl3020_property by pointer instead of by value to avoid
copying the entire struct.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-25-v1-1-5d99cf17790e@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:23 +01:00
David Lechner
5b322dc49a iio: pressure: abp060mg: make abp_config const 
Add const qualifier to struct abp_config abp_config[]. This is
read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-23-v1-1-542cfadce9d0@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:23 +01:00
David Lechner
54fde97fa8 iio: light: zopt2201: make zopt2201_scale const 
Add const qualifier to struct zopt2201_scale zopt2201_scale_*[]. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-22-v1-1-fc9ebdc5f5c3@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:23 +01:00
David Lechner
d94fc241a9 iio: light: isl76682: make isl76682_range_table const 
Add const qualifier to struct isl76682_range isl76682_range_table[].
This is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-21-v1-1-2597d8eda30f@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-13 15:36:23 +01:00
David Lechner
bae712b66c iio: imu: bmi160: make bmi160_regs const 
Add const qualifier to struct bmi160_regs bmi160_regs[]. This is
read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-18-v1-1-dad85ac392ae@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:53 +01:00
David Lechner
ca494204c6 iio: dac: ltc2688: make ltc2688_dither_ext_info const 
Add const qualifier to struct iio_chan_spec_ext_info
ltc2688_dither_ext_info[]. This is read-only data so it can be made
const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-16-v1-1-9b6514588b05@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:53 +01:00
David Lechner
f7f9a33734 iio: dac: ad5770r: make ad5770r_rng_tbl const 
Add const qualifier to struct ad5770r_output_modes ad5770r_rng_tbl[].
This is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-15-v1-1-b86ae055004c@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:53 +01:00
David Lechner
f391719dd1 iio: common: hid-sensor-attributes: make unit_conversion const 
Add const qualifier to struct unit_conversion[]. This is read-only data
so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-14-v1-1-4faa8015e122@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
1e9e9669ff iio: chemical: atlas-ezo-sensor: make atlas_ezo_devices const 
Add const qualifier to struct atlas_ezo_device atlas_ezo_devices[]. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-13-v1-1-2a7fd592a07c@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
9d531de209 iio: amplifiers: ad8366: make ad8366_info const 
Add const qualifier to struct ad8366_info ad8366_infos[]. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-12-v1-1-88029e48a26b@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
0084ccd7dc iio: adc: stm32-adc: make stm32_adc_trig_info const 
Add const qualifier to struct stm32_adc_trig_info. This is read-only
data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-10-v1-1-0ba93ac792c8@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
89b971055a iio: adc: qcom-vadc: make scale_adc5_fn const 
Add const qualifier to struct qcom_adc5_scale_type scale_adc5_fn[]. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-9-v1-1-188ca6e904ee@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
bf9b1ffe15 iio: adc: mp2629_adc: make mp2629_channels const 
Add const qualifier to struct iio_chan_spec mp2629_channels[]. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-8-v1-1-32ce79494d4a@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
fc0f5322a3 iio: adc: axp20x_adc: make axp717_maps const 
Add const qualifier to struct iio_map axp717_maps[]. This is read-only
data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-7-v1-1-10008d0a4c2f@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
1ca58056bc iio: adc: at91_adc: make at91_adc_caps const 
Add const qualifier to struct at91_adc_caps at91sam*_caps. This is
read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-6-v1-1-fbb1ca5edc8d@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
89c3d59a92 iio: adc: ad7091r8: make ad7091r_init_info const 
Add const qualifier to struct ad7091r_init_info ad7091r*_init_info. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Acked-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://patch.msgid.link/20250628-iio-const-data-4-v1-1-4e0f93c9cf83@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:52 +01:00
David Lechner
0e919ffcc7 iio: adc: ad7091r5: make ad7091r5_init_info const 
Add const qualifier to struct ad7091r_init_info ad7091r5_init_info. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Acked-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://patch.msgid.link/20250628-iio-const-data-3-v1-1-13d3f0af5f3f@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:51 +01:00
David Lechner
3307461aea iio: accel: mma9553: make mma9553_event_info const 
Add const qualifier to struct mma9553_event_info mma9553_event_info[].
This is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-2-v1-1-a61da3a0941e@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:51 +01:00
David Lechner
31c3bed202 iio: accel: adxl345: make adxl345_events const 
Add const qualifier to struct iio_event_spec adxl345_events[]. This
is read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-1-v1-1-a32d96d01c2f@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:51 +01:00
Frank Li
47ae96104b dt-bindings: iio: adc: nxp,lpc3220-adc: allow clocks property 
Allow clocks property to fix below CHECK_DTB warning:
  arch/arm/boot/dts/nxp/lpc/lpc3250-ea3250.dtb: adc@40048000 (nxp,lpc3220-adc): 'clocks' does not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250624201302.2515391-1-Frank.Li@nxp.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:51 +01:00
David Lechner
8956547c50 iio: adc: ad7380: remove unused oversampling_ratio getter 
Remove a call to ad7380_get_osr() in ad7380_init_offload_msg. The
returned value is never used.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250624-iio-adc-ad7380-remove-unused-oversampling_ratio-getter-v1-1-26cbee356860@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:51 +01:00
Antoniu Miclaus
695b7c42d9 iio: adc: ad4851: add spi 3-wire support 
Add support for 3-wire configuration within the driver.
By default 4-wire configuration is used.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250626104024.8645-2-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2025-07-06 10:37:51 +01:00