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Initializing the regmap_ranges using direct assignment to the range_min
and range_max members is slightly verbose. We can make it a tad cleaner
when using the regmap_reg_range() macro.
Clean up the code using regmap_reg_range() when initializing the
regmap_range structure.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Initializing the regmap_ranges using direct assignment to the range_min
and range_max members is slightly verbose. We can make it a tad cleaner
when using the regmap_reg_range() macro.
Clean up the code using regmap_reg_range() when initializing the
regmap_range structure.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add driver for Aosong adp810 differential pressure and temperature sensor.
This sensor provides an I2C interface for reading data.
Calculate CRC of the data received using standard crc8 library to verify
data integrity.
Tested on TI am62x sk board with sensor connected at i2c-2.
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Reorder the channel bounds check before using it to index into the
channels array in ad7124_release_config_slot(). This prevents reading
past the end of the array.
The value read from invalid memory was not used, so this was mostly
harmless, but we still should not be reading out of bounds in the first
place.
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/linux-iio/aPi6V-hcaKReSNWK@stanley.mountain/
Fixes: 9065197e0d41 ("iio: adc: ad7124: change setup reg allocation strategy")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The intention here was clearly to return -ENODEV but the return statement
was missing. It would result in an off by one read in i3c_chip_info[] on
the next line. Add the return statement.
Fixes: 1bef24e9007e ("iio: imu: inv_icm45600: add I3C driver for inv_icm45600 driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add support for AD4087 14-bit SAR ADC. The AD4087 differs from
AD4080 in resolution (14-bit vs 20-bit) and LVDS CNV clock count
maximum (1 vs 7).
Changes:
- Add AD4087_CHIP_ID definition (0x0057)
- Create ad4087_channel with 14-bit resolution and 16-bit storage
- Add ad4087_chip_info with lvds_cnv_clk_cnt_max = 1
- Register AD4087 in device ID and OF match tables
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add support for AD4086 14-bit SAR ADC. The AD4086 differs from
AD4080 in resolution (14-bit vs 20-bit) and LVDS CNV clock count
maximum (4 vs 7).
Changes:
- Add AD4086_CHIP_ID definition (0x0056)
- Create ad4086_channel with 14-bit resolution and 16-bit storage
- Add ad4086_chip_info with lvds_cnv_clk_cnt_max = 4
- Register AD4086 in device ID and OF match tables
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add support for AD4083 16-bit SAR ADC. The AD4083 differs from
AD4080 in resolution (16-bit vs 20-bit) and LVDS CNV clock count
maximum (5 vs 7).
Changes:
- Add AD4083_CHIP_ID definition (0x0053)
- Create ad4083_channel with 16-bit resolution and storage
- Add ad4083_chip_info with lvds_cnv_clk_cnt_max = 5
- Register AD4083 in device ID and OF match tables
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Move bma220_set_wdt() into bma220_i2c.c instead of using a conditional
based on i2c_verify_client() in bma220_core.c that would make core
always depend on the i2c module.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510102117.Jqxrw1vF-lkp@intel.com/
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add the iio driver for bosch imu smi330. The smi330 is a combined
three axis angular rate and three axis acceleration sensor.
Signed-off-by: Jianping Shen <Jianping.Shen@de.bosch.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The calibrated timestamp is calculated from the nominal value using the
formula:
ts_gain[ns] ≈ ts_sensitivity - (ts_trim_coeff * val) / 1000.
The values of ts_sensitivity and ts_trim_coeff are not the same for all
devices, so it is necessary to differentiate them based on the part name.
For the correct values please consult the relevant AN.
Fixes: cb3b6b8e1bc0 ("iio: imu: st_lsm6dsx: add odr calibration feature")
Signed-off-by: Mario Tesi <mario.tesi@st.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The MAX14001/MAX14002 is configurable, isolated 10-bit ADCs for multi-range
binary inputs. In addition to ADC readings, the MAX14001/MAX14002 offers
more features, like a binary comparator, a filtered reading that can
provide the average of the last 2, 4, or 8 ADC readings, and an inrush
comparator that triggers the inrush current. There is also a fault feature
that can diagnose seven possible fault conditions. And an option to select
an external or internal ADC voltage reference.
MAX14001/MAX14002 features implemented so far:
- Raw ADC reading.
- MV fault disable.
- Selection of external or internal ADC voltage reference, depending on
whether it is declared in the device tree.
Co-developed-by: Kim Seer Paller <kimseer.paller@analog.com>
Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com>
Signed-off-by: Marilene Andrade Garcia <marilene.agarcia@gmail.com>
Tested-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The rate at which accelerometer or gyroscope sensor samples are fed
to the hardware FIFO (batch data rate, or BDR) does not have to
coincide with the sensor sampling frequency (output data rate, or
ODR); the only requirement is for the BDR to not be greater than
the ODR. Having a BDR lower than the ODR is useful in cases where
an application requires a high sampling rate for accurate detection
of motion events (e.g. wakeup events), but wants to read sensor
sample values from the hardware FIFO at a lower data rate (e.g. to
minimize the amount of I2C or SPI traffic and the rate of periodic
interrupts).
To support the above use case, add a sampling_frequency sysfs
attribute to the buffer directory of st_lsm6dsx IIO devices, which
controls the BDR for a given sensor independently from the "main"
sampling_frequency attribute (which controls the ODR); introduce a
new `hwfifo_odr_mHz` field in struct st_lsm6dsx_sensor to keep
track of the current BDR value, and use this field instead of the
`odr` field in the code that deals with the FIFO data rate. In the
sensor hub driver, make the hwfifo_odr_mHz value always mirror the
odr value, since there is no separate configuration setting to
control the BDR for data produced by the sensor hub functionality.
For backwards compatibility, set the buffer frequency equal to the
main frequency whenever the latter is updated via sysfs; if
userspace wants a different buffer frequency, it has to write to
the relevant sysfs attribute after any writes to the main frequency
attribute.
Signed-off-by: Francesco Lavra <flavra@baylibre.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The `odr` field in struct st_lsm6dsx_sensor contains a data rate
value expressed in mHz, not in Hz.
Fixes: f8710f0357bc3 ("iio: imu: st_lsm6dsx: express odr in mHZ")
Signed-off-by: Francesco Lavra <flavra@baylibre.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Remove errno.h include from bma220_i2c.c since error codes are generated
within bma220_core.c instead.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Clean up white space inconsistencies from the last patch series as
requested by Jonathan.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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FIELD_PREP() checks that a value fits into the available bitfield, add a
check for step_avg to fix gcc complains.
which gcc complains about:
drivers/iio/adc/ti_am335x_adc.c: In function 'tiadc_step_config':
include/linux/compiler_types.h:572:38: error: call to
'__compiletime_assert_491' declared with attribute error: FIELD_PREP: value
too large for the field include/linux/mfd/ti_am335x_tscadc.h:58:29: note:
in expansion of macro 'FIELD_PREP'
#define STEPCONFIG_AVG(val) FIELD_PREP(GENMASK(4, 2), (val))
^~~~~~~~~~
drivers/iio/adc/ti_am335x_adc.c:127:17: note: in expansion of macro 'STEPCONFIG_AVG'
stepconfig = STEPCONFIG_AVG(ffs(adc_dev->step_avg[i]) - 1)
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510102117.Jqxrw1vF-lkp@intel.com/
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Append additional information to existing comments in the generic
interrupt configuration code to provide more context.
Signed-off-by: Akshay Jindal <akshayaj.lkd@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The function activity_event_en() configures the generic interrupts
GEN1 and GEN2, which are used for activity and inactivity detection
as per the datasheet. The existing name is misleading, since the
device also provides activity change and activity recognition
interrupts. Activity change interrupt is not supported yet whereas
Activity recognition interrupt is configured in a different function.
Rename activity_event_en() to generic_event_en() to better reflect its
actual purpose.
No functional changes intended.
Signed-off-by: Akshay Jindal <akshayaj.lkd@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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set_* functions involve left shift of param values into respective
register fields before writing to register. Similarly get_* functions
involve right shift to extract values from the respective bit fields.
Replace these explicit shifting statements with standard kernel style
macros FIELD_GET() and FIELD_PREP().
Signed-off-by: Akshay Jindal <akshayaj.lkd@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Introduce formula-based macros to compute GEN INTR configuration register
addresses from the interrupt number and register index. This reduces the
need for 22 explicit register macros to three base definitions.
Add a centralized lookup table keyed by IIO event direction and replace
get_gen_config_reg() with a helper integrated with this table.
Apply these changes across the affected callbacks to ensure consistent
access to generic interrupt registers.
No functional changes are intended.
Signed-off-by: Akshay Jindal <akshayaj.lkd@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add macros and enums for configuration values used in generic event
handling for activity and inactivity detection. Replace hard-coded
values in activity_event_en() with the new definitions to make the
configuration explicit.
No functional changes are intended.
Signed-off-by: Akshay Jindal <akshayaj.lkd@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Reorganize register and field macros to improve consistency with the
datasheet and naming style:
- Move field macros next to their corresponding register macros
- Reorder register macros to follow address order from the datasheet
- Rename field macros to include the register name in the macro name
- Add a _REG suffix to register macros where missing
- Add INT_STAT register fields corresponding to used INT_CONFIG fields
No functional changes are intended.
Signed-off-by: Akshay Jindal <akshayaj.lkd@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The required LED pulse width depends on board-specific optical and
mechanical design, which affects measurement accuracy and power use.
Making it configurable via Device Tree allows each platform to define
an appropriate value instead of relying on a hardcoded default.
If unspecified, the driver defaults to 1600 us for backward compatibility.
Tested on: Raspberry Pi 3B + MAX30100 breakout board.
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Shrikant Raskar <raskar.shree97@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The error code returned from devm_iio_trigger_register() inturn
iio_trigger_register() can be other than -ENOMEM. Hence return the
same value as it was returned from the function call.
This change makes devm_iio_trigger_register() handling uniform with
other iio drivers.
Signed-off-by: Dixit Parmar <dixitparmar19@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add support for AD4081 20-bit SAR ADC. The AD4081 has the same
resolution as AD4080 (20-bit) but differs in LVDS CNV clock count
maximum (2 vs 7).
Changes:
- Add AD4081_CHIP_ID definition (0x0051)
- Create ad4081_channel with 20-bit resolution and 32-bit storage
- Add ad4081_chip_info with lvds_cnv_clk_cnt_max = 2
- Register AD4081 in device ID and OF match tables
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add support for AD4084 16-bit SAR ADC. The AD4084 differs from
AD4080 in resolution (16-bit vs 20-bit) and LVDS CNV clock count
maximum (2 vs 7).
Changes:
- Add AD4084_CHIP_ID definition (0x0054)
- Create ad4084_channel with 16-bit resolution and storage
- Add ad4084_chip_info with appropriate configuration
- Register AD4084 in device ID and OF match tables
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Refactor the ad4080 driver to support multiple ADC variants with
different resolution bits and LVDS CNV clock count maximums.
Changes:
- Add lvds_cnv_clk_cnt_max field to chip_info structure
- Create AD4080_CHANNEL_DEFINE macro for variable resolution/storage bits
- Make LVDS CNV clock count configurable per chip variant
- Use chip_info->product_id for chip identification comparison
This prepares the infrastructure for adding support for additional
ADC parts with different specifications while maintaining backward
compatibility with existing AD4080 functionality.
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Fix AD4080 chip identification by using the correct 16-bit product ID
(0x0050) instead of GENMASK(2, 0). Update the chip reading logic to
use regmap_bulk_read to read both PRODUCT_ID_L and PRODUCT_ID_H
registers and combine them into a 16-bit value.
The original implementation was incorrectly reading only 3 bits,
which would not correctly identify the AD4080 chip.
Fixes: 6b31ba1811b6 ("iio: adc: ad4080: add driver support")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add I3C driver for InvenSense ICM-45600 devices.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add SPI driver for InvenSense ICM-456000 devices.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add I2C driver for InvenSense ICM-456000 devices.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add IIO device for accelerometer sensor
with data polling interface and FIFO parsing.
Attributes: raw, scale, sampling_frequency, calibbias.
Temperature is available as a processed channel.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add IIO device for gyroscope sensor
with data polling interface and FIFO parsing.
Attributes: raw, scale, sampling_frequency, calibbias.
Temperature is available as a processed channel.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add FIFO control functions.
Support hwfifo watermark by multiplexing gyro and accel settings.
Support hwfifo flush.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Core component of a new driver for InvenSense ICM-45600 devices.
It includes registers definition, main probe/setup, and device
utility functions.
ICM-456xx devices are latest generation of 6-axis IMU,
gyroscope+accelerometer and temperature sensor. This device
includes a 8K FIFO, supports I2C/I3C/SPI, and provides
intelligent motion features like pedometer, tilt detection,
and tap detection.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Allow read/write access to sensor registers for use in unit-tests.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add mapping for the low pass filter cut-off frequency.
Make valid values visible for both the cut-off frequency and the scale.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add interrupt trigger.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Sometimes the sensor gets stuck and enters a condition in which it pulls
SDA low, thus making the entire i2c bus unusable.
This problem is mitigated by activating a 1ms watchdog implemented in
the sensor.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add the bma220_i2c module.
Note that this kernel module transparently shifts all register addresses
1 bit to the left, so all functions will operate based on the SPI memory
map.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Clean up the code a bit by using a find_match_table function.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Populate buffer timestamps in trigger handler since not all
triggers can run the top half handler that provides
pf->timestamp.
Fixes failing unit test that triggers based on the INT signal.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Switch to regmap API.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Bring all configuration registers to default values during
device probe().
Remove trivial code duplication regarding bma220_power() in
_init()
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add devm_regulator_bulk_get_enable() to device probe().
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add open firmware entry to the spi driver.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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In preparation for the i2c module, move the original code into multiple
source files without any other functional change.
Create the additional bma220_core module which currently is not
providing an abstracted bus type (this will change with the regmap
patch).
Fix a few includes in the context of this patch.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Tweak includes based on requirements.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #added linux/errno.h
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Move bma220_power() before bma220_init() as a precursor to a
patch that removes code duplication.
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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