- 17 Dec, 2023 7 commits
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Marcelo Schmitt authored
The ad7091r-base driver sets up an interrupt handler for firing events when inputs are either above or below a certain threshold. However, for the interrupt signal to come from the device it must be configured to enable the ALERT/BUSY/GPO pin to be used as ALERT, which was not being done until now. Enable interrupt signals on the ALERT/BUSY/GPO pin by setting the proper bit in the configuration register. Signed-off-by:
Marcelo Schmitt <marcelo.schmitt@analog.com> Link: https://lore.kernel.org/r/e8da2ee98d6df88318b14baf3dc9630e20218418.1702746240.git.marcelo.schmitt1@gmail.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Marcelo Schmitt authored
Previous version of ad7091r event handler received the ADC state pointer and retrieved the iio device from driver data field with dev_get_drvdata(). However, no driver data have ever been set, which led to null pointer dereference when running the event handler. Pass the iio device to the event handler and retrieve the ADC state struct from it so we avoid the null pointer dereference and save the driver from filling the driver data field. Fixes: ca693001 ("iio: adc: Add support for AD7091R5 ADC") Signed-off-by:
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Marcelo Schmitt authored
Checkpatch presumes attributes marked with __aligned(alignment) are part of a function declaration and throws a warning stating that those compiler attributes should have an identifier name which is not correct. Add __aligned compiler attributes to the list of attribute notes so they don't cause warnings anymore. Signed-off-by:
Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/1c5c93ecbd8c46a338b22a4ef52e51648e333c01.1702746240.git.marcelo.schmitt1@gmail.comSigned-off-by:
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Anshul Dalal authored
A simple driver for the TVOC (Total Volatile Organic Compounds) sensor from Aosong: AGS02MA Steps in reading the VOC sensor value over i2c: 1. Read 5 bytes from the register `AGS02MA_TVOC_READ_REG` [0x00] 2. The first 4 bytes are taken as the big endian sensor data with final byte being the CRC 3. The CRC is verified and the value is returned over an `IIO_CHAN_INFO_RAW` channel as percents Tested on Raspberry Pi Zero 2W Datasheet: https://asairsensors.com/wp-content/uploads/2021/09/AGS02MA.pdfSigned-off-by:Anshul Dalal <anshulusr@gmail.com> Link: https://lore.kernel.org/r/20231215162312.143568-3-anshulusr@gmail.comSigned-off-by:
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Anshul Dalal authored
Add bindings for Aosong AGS02MA TVOC sensor. The sensor communicates over i2c with the default address 0x1a. TVOC values can be read in the units of ppb and ug/m^3 at register 0x00. Datasheet: https://asairsensors.com/wp-content/uploads/2021/09/AGS02MA.pdfReviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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Anshul Dalal authored
Aosong Electronic Co., LTD. is a supplier for MEMS sensors such as AHT20 temperature and humidity sensor under the brand name Asair Acked-by:
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Jun Yan authored
update the comments and Kconfig file with more descriptive and accurate information about newly added device: BMI085, BMI090L. Signed-off-by:
Jun Yan <jerrysteve1101@gmail.com> Signed-off-by:
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- 11 Dec, 2023 13 commits
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Li peiyu authored
Add device tree bindings for HDC3020/HDC3021/HDC3022 humidity and temperature sensors. Signed-off-by:
Li peiyu <579lpy@gmail.com> Reviewed-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20231211123101.9868-1-579lpy@gmail.comSigned-off-by:
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Li peiyu authored
Add support for HDC302x integrated capacitive based relative humidity (RH) and temperature sensor. This driver supports reading values, reading the maximum and minimum of values and controlling the integrated heater of the sensor. Co-developed-by:
Javier Carrasco <javier.carrasco.cruz@gmail.com> Signed-off-by:
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Javier Carrasco authored
The in_temp_peak_raw attribute is already in use, but its documentation is still missing. The in_humidityrelative_raw must be documented for a new iio user that supports this attribute. Add temp and humidityrelative use cases. When at it, remove an extra blank space in the description. For users that support minimum values, a new in_<type>_trough_raw attribute is required. Add this attribute and document the first uses of it for temp and humidityrelative types. Signed-off-by:
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Javier Carrasco authored
The IIO_CHAN_INFO_PEAK info element is used for maximum values and currently there is no equivalent for minimum values. Instead of overloading the existing peak info element, a new info element can be added. In principle there is no need to add a _TROUGH_SCALE element as the scale will be the same as the one required for INFO_PEAK, which in turn is sometimes omitted if a single scale for peaks and raw values is required. Add an IIO_CHAN_INFO_TROUGH info element for minimum values. Signed-off-by:
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Anshul Dalal authored
Implements driver for the Ambient/UV Light sensor LTR390. The driver exposes two ways of getting sensor readings: 1. Raw UV Counts directly from the sensor 2. The computed UV Index value with a percision of 2 decimal places [NOTE] Ambient light sensing has not been implemented yet. Driver tested on RPi Zero 2W Datasheet: https://optoelectronics.liteon.com/upload/download/DS86-2015-0004/LTR-390UV_Final_%20DS_V1%201.pdfSigned-off-by:
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Anshul Dalal authored
Add binding for Lite-On LTR390 which is an Ambient/UV light sensor that communicates over i2c with an address of 0x53. Datasheet: https://optoelectronics.liteon.com/upload/download/DS86-2015-0004/LTR-390UV_Final_%20DS_V1%201.pdfReviewed-by:
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Jiapeng Chong authored
The function isl76682_read_raw cannot execute return -EINVAL up to 145 lines, delete the invalid code. drivers/iio/light/isl76682.c:145 isl76682_read_raw() warn: ignoring unreachable code. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7698Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/20231208021715.32450-1-jiapeng.chong@linux.alibaba.comSigned-off-by:
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Petre Rodan authored
Adds driver for digital Honeywell TruStability HSC and SSC series pressure and temperature sensors. Communication is one way. The sensor only requires 4 bytes worth of clock pulses on both i2c and spi in order to push the data out. The i2c address is hardcoded and depends on the part number. There is no additional GPIO control. code is now based on iio/togreg Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf [HSC] Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-ssc-series/documents/sps-siot-trustability-ssc-series-standard-accuracy-board-mount-pressure-sensors-50099533-a-en-ciid-151134.pdf [SSC] Signed-off-by:
Petre Rodan <petre.rodan@subdimension.ro> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231207164634.11998-2-petre.rodan@subdimension.roSigned-off-by:
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Petre Rodan authored
Adds binding for digital Honeywell TruStability HSC and SSC series pressure and temperature sensors. Communication is one way. The sensor only requires 4 bytes worth of clock pulses on both i2c and spi in order to push the data out. The i2c address is hardcoded and depends on the part number. There is no additional GPIO control. driver is based on iio/togreg Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf [HSC] Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-ssc-series/documents/sps-siot-trustability-ssc-series-standard-accuracy-board-mount-pressure-sensors-50099533-a-en-ciid-151134.pdf [SSC] Reviewed-by:
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Marek Vasut authored
Add comment about intensity scale being poorly defined and having no proper units. Signed-off-by:
Marek Vasut <marex@denx.de> Link: https://lore.kernel.org/r/20231207134200.329174-1-marex@denx.deSigned-off-by:
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Crt Mori authored
Add device tree bindings for MLX90635 Infra Red contactless temperature sensor. Signed-off-by:
Crt Mori <cmo@melexis.com> Reviewed-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/0313c3b9f7490c32891627feb5ef35d5e5d9aae9.1701872051.git.cmo@melexis.comSigned-off-by:
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Crt Mori authored
MLX90635 is an Infra Red contactless temperature sensor most suitable for consumer applications where measured object temperature is in range between -20 to 100 degrees Celsius. It has improved accuracy for measurements within temperature range of human body and can operate in ambient temperature range between -20 to 85 degrees Celsius. Driver provides simple power management possibility as it returns to lowest possible power mode (Step sleep mode) in which temperature measurements can still be performed, yet for continuous measuring it switches to Continuous power mode where measurements constantly change without triggering. Signed-off-by: Crt Mori<cmo@melexis.com> Link: https://lore.kernel.org/r/c6590e4fb8d993a5317b486a3e45e1bb6e9e3318.1701872051.git.cmo@melexis.comSigned-off-by:
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Nuno Sa authored
Use MMIO regmap interface. It makes things easier for manipulating bits. Reviewed-by:
David Lechner <dlechner@baylibre.com> Signed-off-by:
Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20231207-iio-backend-prep-v2-8-a4a33bc4d70e@analog.comSigned-off-by:
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- 10 Dec, 2023 8 commits
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Nuno Sa authored
Check !val instead of directing checking for NULL (val == NULL). No functional changes intended. Reviewed-by:
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Nuno Sa authored
Instead of having an array and keeping IDs for each entry of the array, just have a chip_info struct per device. Reviewed-by:
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Nuno Sa authored
Make use of spi_get_device_match_data() to simplify things. Reviewed-by:
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Nuno Sa authored
When reading in_voltage_scale we can get something like: root@analog:/sys/bus/iio/devices/iio:device2# cat in_voltage_scale 0.038146 However, when reading the available options: root@analog:/sys/bus/iio/devices/iio:device2# cat in_voltage_scale_available 2000.000000 2100.000006 2200.000007 2300.000008 2400.000009 2500.000010 which does not make sense. Moreover, when trying to set a new scale we get an error because there's no call to __ad9467_get_scale() to give us values as given when reading in_voltage_scale. Fix it by computing the available scales during probe and properly pass the list when .read_available() is called. While at it, change to use .read_available() from iio_info. Also note that to properly fix this, adi-axi-adc.c has to be changed accordingly. Fixes: ad679712 ("iio: adc: ad9467: add support AD9467 ADC") Signed-off-by:
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Nuno Sa authored
When calling ad9467_set_scale(), multiple calls to ad9467_spi_write() are done which means we need to properly protect the whole operation so we are sure we will be in a sane state if two concurrent calls occur. Fixes: ad679712 ("iio: adc: ad9467: add support AD9467 ADC") Signed-off-by:
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Nuno Sa authored
Make sure functions that return errors are not ignored. Fixes: ad679712 ("iio: adc: ad9467: add support AD9467 ADC") Reviewed-by:
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Nuno Sa authored
The reset gpio was being handled with inverted polarity. This means that as far as gpiolib is concerned we were actually leaving the pin asserted (in theory, this would mean reset). However, inverting the polarity in devicetree made things work. Fix it by doing it the proper way and how gpiolib expects it to be done. While at it, moved the handling to it's own function and dropped 'reset_gpio' from the 'struct ad9467_state' as we only need it during probe. On top of that, refactored things so that we now request the gpio asserted (i.e in reset) and then de-assert it. Also note that we now use gpiod_set_value_cansleep() instead of gpiod_direction_output() as we already request the pin as output. Fixes: ad679712 ("iio: adc: ad9467: add support AD9467 ADC") Reviewed-by:
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Marcus Folkesson authored
Use the guard(mutex) macro for handle mutex lock/unlocks. Signed-off-by:
Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/20231206-mcp3911-guard-v4-1-30c3c5d4340f@gmail.comSigned-off-by:
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- 06 Dec, 2023 8 commits
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Jonathan Cameron authored
The extra cost of always including the acpi_device_id table is trivial vs the complexity of adding guards or __maybe_unused markings so just stop using the ACPI_PTR() macro. Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202311160851.FDA4CDVE-lkp@intel.com/ Link: https://lore.kernel.org/r/20231116192711.366441-1-jic23@kernel.orgSigned-off-by:
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Johan Hovold authored
Clean up the VADC examples by dropping a comment, dropping unnecessary labels and adding newline separators. Signed-off-by:
Johan Hovold <johan+linaro@kernel.org> Acked-by:
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Johan Hovold authored
The VADC is a child of an SPMI PMIC, which in turn sits on an SPMI bus. Fixes: 74e90346 ("dt-bindings: iio: adc: qcom,spmi-vadc: extend example") Fixes: 5a471662 ("iio: adc: Convert the QCOM SPMI ADC bindings to .yaml format") Signed-off-by:
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Johan Hovold authored
Clean up the RRADC example by dropping an unnecessary label and removing stray white space. Signed-off-by:
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Johan Hovold authored
Clean up the IADC example by adding a newline separator, dropping an unnecessary label and removing stray white space. Signed-off-by:
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Johan Hovold authored
The IADC is a child of an SPMI PMIC, which in turn sits on an SPMI bus. Fixes: a4e6bf69 ("dt-bindings:iio:adc:qcom,spmi-iadc: txt to yaml format conversion.") Signed-off-by:
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Johan Hovold authored
The IADC register is just the base address in the SPMI PMIC and does not include any length. Signed-off-by:
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Marek Vasut authored
The ISL76682 is very basic ALS which only supports ALS or IR mode in four ranges, 1k/4k/16k/64k LUX. There is no IRQ support or any other fancy functionality. Reviewed-by:
Matti Vaittinen <mazziesaccount@gmail.com> Signed-off-by:
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- 04 Dec, 2023 4 commits
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Marek Vasut authored
The ISL76682 is very basic ALS which only supports ALS or IR mode in four ranges, 1k/4k/16k/64k LUX. There is no IRQ support or any other fancy functionality. Document it as trivial device. Acked-by:
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Javier Carrasco authored
The Vishay VEMl6075 is a low power, 16-bit resolution UVA and UVB light sensor with I2C interface and noise compensation (visible and infrarred). Every UV channel generates an output signal measured in counts per integration period, where the integration time is configurable. This driver adds support for both UV channels and the ultraviolet index (UVI) inferred from them according to the device application note with open-air (no teflon) coefficients. Signed-off-by:
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Javier Carrasco authored
The Vishay VEML6075 is a 16-bit digital UVA and UVB sensor with I2C interface. Add bindings and an example for the Vishay VEML6075. Signed-off-by:
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Javier Carrasco authored
Currently there are only two modifiers for ultraviolet light: a generic one for any ultraviolet light (IIO_MOD_LIGHT_UV) and one for deep ultraviolet (IIO_MOD_LIGHT_DUV), which is also referred as ultraviolet C (UV-C) band and covers short-wave ultraviolet. There are still no modifiers for the long-wave and medium-wave ultraviolet bands. These two bands are the main components used to obtain the UV index on the Earth's surface. Add modifiers for the ultraviolet A (UV-A) and ultraviolet B (UV-B) bands. Signed-off-by:
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