- 11 Dec, 2023 10 commits
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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:
Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20231211122747.9723-1-579lpy@gmail.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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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:
Anshul Dalal <anshulusr@gmail.com> Link: https://lore.kernel.org/r/20231208102211.413019-2-anshulusr@gmail.comSigned-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:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-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:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20231130171628.12257-7-johan+linaro@kernel.orgSigned-off-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 9 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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Linus Walleij authored
The driver includes the legacy GPIO header <linux/gpio.h> but doesn't use any symbols from it. Drop it. Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
Waqar Hameed <waqar.hameed@axis.com> Link: https://lore.kernel.org/r/20231128-descriptors-iio-v1-1-da1e94755db6@linaro.orgSigned-off-by:
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Rob Herring authored
The example for the TI Palmas ADC is incomplete as the binding is the full PMIC, not just the sub-functions. It is preferred for MFD examples to be complete in the top-level MFD device binding rather than piecemeal in each sub-function binding. This also fixes an undocumented (by schema) compatible warning for '"ti,twl6035-pmic", "ti,palmas-pmic"'. Signed-off-by:
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Michael Hennerich authored
This patch adds support for an external amplifier to be connected in a gain of two configuration. Signed-off-by:
Michael Hennerich <michael.hennerich@analog.com> Signed-off-by:
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Michael Hennerich authored
Added new property to support an external amplifier to be connected in a gain of two configuration. Signed-off-by:
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Krzysztof Kozlowski authored
The dtschema treats now properties with '-pascal' suffix as standard one and already defines $ref for them, thus the $ref should be dropped from the bindings. Signed-off-by:
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- 26 Nov, 2023 5 commits
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Jagath Jog J authored
Make the local structures static within their respective driver files. Reported-by:
Jagath Jog J <jagathjog1996@gmail.com> Link: https://lore.kernel.org/r/20231108035831.5889-1-jagathjog1996@gmail.comSigned-off-by:
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Shreeya Patel authored
For better precision of input light intesity, return floating point values through sysfs instead of an integer value Signed-off-by:
Shreeya Patel <shreeya.patel@collabora.com> Link: https://lore.kernel.org/r/20231107192005.285534-1-shreeya.patel@collabora.comSigned-off-by:
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Su Hui authored
regmap_bulk_write()/regmap_bulk_read() return zero or negative error code, return the callee's error code is better than '-EINVAL'. Signed-off-by:
Su Hui <suhui@nfschina.com> Link: https://lore.kernel.org/r/20231030020752.67630-1-suhui@nfschina.comSigned-off-by:
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Ana-Maria Cusco authored
This adds support for the Analog Devices ADRF5740 2 dB LSB, 4-Bit, Silicon Digital Attenuator, 10 MHz to 60 GHz. The default (maximum) gain is also set at probe time, with GPIO lines driven high to achieve maximum gain, in contrast to other devices where GPIOs need to be driven low. Signed-off-by:
Ana-Maria Cusco <ana-maria.cusco@analog.com> Link: https://lore.kernel.org/r/20231113102535.51074-2-anamaria.cuscoo@gmail.comSigned-off-by:
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Ana-Maria Cusco authored
The ADRF5740 is a silicon, 4-bit digital attenuator with 22 dB attenuation control range in 2 dB steps. Signed-off-by:
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