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2019-06-22iio: adc: stm32-dfsdm: fix data typeOlivier Moysan
Fix the data type as DFSDM raw output is complements 2, 24bits left aligned in a 32-bit register. This change does not affect AUDIO path - Set data as signed for IIO (as for AUDIO) - Set 8 bit right shift for IIO. The 8 LSBs bits of data contains channel info and are masked. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Fixes: e2e6771c6462 ("IIO: ADC: add STM32 DFSDM sigma delta ADC support") Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-22iio: adc: stm32-dfsdm: fix output resolutionOlivier Moysan
In buffered mode, output samples are shifted left unconditionally. This works for filter order 3, but this shift is not adapted for other filter orders. Compute required shift, left or right, and shift output data accordingly. Add also saturation management to avoid wrap-around when maximum positive sample is reached. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Fixes: eca949800d2d ("IIO: ADC: add stm32 DFSDM support for PDM microphone") Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-22MAINTAINERS: add entry for sensirion sps30 driverTomasz Duszynski
Add myself as a sensirion sps30 driver maintainer. Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-22dt-bindings: iio: chemical: sps30: convert bindings to yamlTomasz Duszynski
Convert existing device tree bindings to yaml. Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-22iio: sca3000: Potential endian bug in sca3000_read_event_value()Dan Carpenter
The problem is that "ret" is an int but we're casting it as "(unsigned long *)&ret" when we do the for_each_set_bit() loop. This will not work on big endian 64 bit systems. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-22iio: st_accel: fix iio_triggered_buffer_{pre,post}enable positionsAlexandru Ardelean
The iio_triggered_buffer_{predisable,postenable} functions attach/detach the poll functions. For the predisable hook, the disable code should occur before detaching the poll func, and for the postenable hook, the poll func should be attached before the enable code. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: adc: xilinx: support all platformsRobert Hancock
Since the XADC logic can be used with standalone Xilinx FPGAs, this driver can potentially be used with many different platforms, not just the Zynq and MicroBlaze platforms this driver was allowed to be built for. There should be no platform-specific code in this driver, so just delete the platform dependency. Signed-off-by: Robert Hancock <hancock@sedsystems.ca> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: humidity: Replace older GPIO APIs with GPIO Consumer APIs for the dht11 ↵Shobhit Kukreti
sensor The dht11 driver uses a single gpio to make measurements. It was using the older global gpio numberspace. The patch replaces the old gpio api with the new gpio descriptor based api. Removed header files "linux/gpio.h" and "linux/of_gpio.h" Signed-off-by: Shobhit Kukreti <shobhitkukreti@gmail.com> Acked-by: Harald Geyer <harald@ccbib.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17MAINTAINERS: add counter/ftm-quaddec driver entryPatrick Havelange
Adding myself as maintainer for this driver Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17staging: iio: ad7150: clean up of commentsMelissa Wen
General cleaning of comments to remove useless information or improve description. Signed-off-by: Melissa Wen <melissa.srw@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17staging: iio: ad7150: simplify i2c SMBus return treatmentMelissa Wen
Since i2c_smbus_write_byte_data returns no-positive value, this commit making the treatment of its return value less verbose. Signed-off-by: Melissa Wen <melissa.srw@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17staging: iio: ad7150: use FIELD_GET and GENMASKMelissa Wen
Use the bitfield macro FIELD_GET, and GENMASK to do the shift and mask in one go. This makes the code more readable than explicit masking followed by a shift. Signed-off-by: Melissa Wen <melissa.srw@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17staging: iio: ad7150: use ternary operating to ensure 0/1 valueMelissa Wen
Remove idiom and use ternary operator for consistently trigger 0/1 value on variable declaration. Signed-off-by: Melissa Wen <melissa.srw@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: ad_sigma_delta: return directly in ad_sd_buffer_postenable()Alexandru Ardelean
There is nothing being done after the `err_predisable` label, so just remove it. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: amplifiers: ad8366: Add support for ADL5240 VGAAlexandru Ardelean
The ADL5240 is a high performance, digitally controlled variable gain amplifier (VGA) operating from 100 MHz to 4000 MHz. The VGA integrates a high performance, 20 dB gain, internally matched amplifier (AMP) with a 6-bit digital step attenuator (DSA) that has a gain control range of 31.5 dB in 0.5 dB steps with ±0.25 dB step accuracy. Datasheet link: https://www.analog.com/media/en/technical-documentation/data-sheets/adl5240.pdf Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: amplifiers: ad8366: Add support for the ADA4961 DGAPaul Cercueil
This change adds support for the ADA4961 BiCMOS RF Digital Gain Amplifier, (DGA), which is optimized for driving heavy loads out 2.0 GHz and beyond. The device typically achieves -90 dBc IMD3 performance at 500 MHz and -85 dBc at 1.5 GHz. Datasheet link: http://www.analog.com/media/en/technical-documentation/data-sheets/ADA4961.pdf This change re-uses the existing ad8366 driver, as most logic is similar. Also, this chip has a reset pin which is initialized during probe. Signed-off-by: Paul Cercueil <paul.cercueil@analog.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: amplifiers: ad8366: rework driver to allow other chipsAlexandru Ardelean
The SPI gain amplifiers are simple devices, with 1 or 2 channels, to which are read-from/written-to. The gain computation in ad8366_write_raw() has been updated to compute gain in dB for negative values. This driver will be extended to support other chips as well. To do that, this rework handles the AD8366 device as a special-case (via switch-statements). This will make things easier when adding new chips. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: amplifiers: ad8366: use own lock to guard stateAlexandru Ardelean
This driver is still using iio_dev's mlock to guard against inconsistent state. This has been discouraged for some time. This change switches to using it's own mutex, defined on the state struct. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: amplifiers: update license informationAlexandru Ardelean
Use the new `SPDX-License-Identifier` tag to specify the license. For ad8366, also update copyright years in the header part. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17dt-bindings: iio: accel: adxl372: switch to YAML bindingsLucas Oshiro
Convert the old device tree documentation to yaml format. Signed-off-by: Lucas Oshiro <lucasseikioshiro@gmail.com> Signed-off-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Co-developed-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: adxl372: fix iio_triggered_buffer_{pre,post}enable positionsAlexandru Ardelean
The iio_triggered_buffer_{predisable,postenable} functions attach/detach the poll functions. For the predisable hook, the disable code should occur before detaching the poll func, and for the postenable hook, the poll func should be attached before the enable code. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17dt-bindings: iio: frequency: Add docs for ADF4371 PLLStefan Popa
Document support for Analog Devices ADF4371 SPI Wideband Synthesizer. Signed-off-by: Stefan Popa <stefan.popa@analog.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: frequency: adf4371: Add support for ADF4371 PLLStefan Popa
The ADF4371 is a frequency synthesizer with an integrated voltage controlled oscillator (VCO) for phase-locked loops (PLLs). The ADF4371 has an integrated VCO with a fundamental output frequency ranging from 4000 MHz to 8000 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 16, 32, or 64 circuits that allows the user to generate radio frequency (RF) output frequencies as low as 62.5 MHz at RF8x. A frequency multiplier at RF16x generates from 8 GHz to 16 GHz. A frequency quadrupler generates frequencies from 16 GHz to 32 GHz at RF32x. RFAUX8x duplicates the frequency range of RF8x or permits direct access to the VCO output. The driver takes the reference input frequency from the device tree and uses it to calculate and maximize the PFD frequency (frequency of the phase frequency detector). The PFD frequency is further used to calculate the timeouts: synthesizer lock, VCO band selection, automatic level calibration (ALC) and PLL settling time. This initial driver exposes the attributes for setting the frequency and enabling/disabling the different adf4371 channels. Datasheet: Link: https://www.analog.com/media/en/technical-documentation/data-sheets/adf4371.pdf Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: imu: st_lsm6dsx: get device name from st_lsm6dsx_sensor_settingsLorenzo Bianconi
Introduce sensor name in st_lsm6dsx_sensor_settings table. This is a preliminary patch to add I3C support to st_lsm6dsx since i3c_device_id data structure does not contain a name field Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: imx7d_adc: Remove unneeded 'average_en' memberFabio Estevam
average_en is always true, so there is not really need for this structure member. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: imx7d_adc: Fit into a single lineFabio Estevam
All the parameters of devm_request_irq() can fit into a single line, so place them all in a single line for better readability. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: imx7d_adc: Introduce a definition for the input clockFabio Estevam
Since the input clock is always 24MHz, there is no need for storing this value into a variable. Use a definition instead, which is more appropriate in this case. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: imx7d_adc: Remove unneeded error messageFabio Estevam
In case of ioremap failure, the core code will take care of printing the error message, so there is no need for having a local error message in the driver. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: light: stk3310: Add support for stk3335Martijn Braam
The stk3335 light/proximity sensor is similar to the stk3310 and stk3311 sensors and works with the stk3310 driver. Signed-off-by: Martijn Braam <martijn@brixit.nl> Signed-off-by: Luca Weiss <luca@z3ntu.xyz> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio:core: Fix bug in length of event info_mask and catch unhandled bits set ↵Young Xiao
in masks. The incorrect limit for the for_each_set_bit loop was noticed whilst fixing this other case. Note that as we only have 3 possible entries a the moment and the value was set to 4, the bug would not have any effect currently. It will bite fairly soon though, so best fix it now. See commit ef4b4856593f ("iio:core: Fix bug in length of event info_mask and catch unhandled bits set in masks.") for details. Signed-off-by: Young Xiao <92siuyang@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17staging: iio: ad2s1210: Remove platform data NULL check in probeAlexandru Ardelean
The driver only needs to access GPIOs via GPIOLIB. And SPI can be configured via device-tree or ACPI. The platform data is a remnant from another time, and should not cause the driver to error out during probing if it is NULL. Also, it's not used. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17iio: light: bh1780: simplify getting the adapter of a clientWolfram Sang
We have a dedicated pointer for that, so use it. Much easier to read and less computation involved. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-16iio: adc: ad7606: Add software configurationBeniamin Bia
Because this driver will support multiple configurations for software, the software configuration was made generic. Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-16iio: adc: ad7606: Move oversampling and scale options to chip infoBeniamin Bia
The device dependent options which are going to be different for devices which will be supported in the future by this driver, were moved in chip info for a more generic driver. This patch allows supporting more devices by the driver. Also, it is an intermediate step of adding support for ad7616 in software mode. Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-16iio: adc: meson_saradc: update with SPDX Licence identifierNeil Armstrong
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-16MAINTAINERS: add entry for ad7780 adc driverRenato Lui Geh
This patch adds a MAINTAINERS entry for the AD7780 ADC driver. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-16dt-bindings: iio: adc: add adi,ad7780.yaml bindingRenato Lui Geh
This patch adds a YAML binding for the Analog Devices AD7780/1 and AD7170/1 analog-to-digital converters. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-08iio: accel: add missing sensor for some 2-in-1 based ultrabooksLuís Ferreira
Some ultrabooks, like Teclast F6 Pro, use KIOX010A sensor on display and KIOX020A sensor on keyboard base, to detect tablet mode or screen orientation. Signed-off-by: Luís Ferreira <luis@aurorafoss.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-08docs: iio: add precision about sampling_frequency_availableFabien Lahoudere
The documentation give some exemple on what format can be expected from sampling_frequency_available sysfs attribute Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-08iio: dps310: Add pressure sensing capabilityEddie James
The DPS310 supports measurement of pressure, so support that in the driver. Use background measurement like the temperature sensing and default to lowest precision and lowest measurement rate. Signed-off-by: Eddie James <eajames@linux.ibm.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-27iio: dps310: Temperature measurement errataChristopher Bostic
Add a manufacturer's suggested workaround to deal with early revisions of chip that don't indicate correct temperature. Readings can be in the ~60C range when they should be in the ~20's. Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Eddie James <eajames@linux.ibm.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-27iio: Add driver for Infineon DPS310Joel Stanley
The DPS310 is a temperature and pressure sensor. It can be accessed over i2c and SPI, but this driver only supports polling over i2c. Signed-off-by: Eddie James <eajames@linux.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adis16240: add of_match_table entryRodrigo Ribeiro
This patch adds of_match_table entry in device driver in order to enable spi fallback probing. Signed-off-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: ad7746: add device tree supportJoão Seckler
Add a of_device_id struct variable and subsequent call to MODULE_DEVICE_TABLE macro to support device tree. Signed-off-by: João Seckler <joaoseckler@gmail.com> Signed-off-by: Lucas Oshiro <lucasseikioshiro@gmail.com> Co-developed-by: Lucas Oshiro <lucasseikioshiro@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adis16240: add device to module device tableLucas Oshiro
Add a of_device_id struct and MODULE_DEVICE_TABLE call, in order to add device-tree support for this driver. Signed-off-by: Lucas Oshiro <lucasseikioshiro@gmail.com> Signed-off-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Co-developed-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adt7316: create of_device_id arrayBárbara Fernandes
Create structure of type of_device_id in order to register all devices the driver is able to manage. Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br> Signed-off-by: Wilson Sales <spoonm@spoonm.org> Co-developed-by: Wilson Sales <spoonm@spoonm.org> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adis16203: Add of_device_id tableThiago Estrela
Accomplish device tree compatibility to driver ADIS16203 by adding of_device_id table and making a subsequent call to MODULE_DEVICE_TABLE. Signed-off-by: Thiago Estrela <thiagestrela@gmail.com> Signed-off-by: Tiago Napoli <napoli.tiago96@gmail.com> Co-developed-by: Tiago Napoli <napoli.tiago96@gmail.com> Signed-off-by: Pedro Sousa <pedroteosousa@gmail.com> Co-developed-by: Pedro Sousa <pedroteosousa@gmail.com> Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: ad9834: add of_device_id tableJoão Victor Marques de Oliveira
Add a of_device_id struct array of_match_table variable and subsequent call to MODULE_DEVICE_TABLE macro to enable explicit device tree support. Co-developed-by: Thiago L. A. Miller <tmiller@mochsl.org.br> Signed-off-by: Thiago L. A. Miller <tmiller@mochsl.org.br> Co-developed-by: Osvaldo M. Yasuda <omyasuda@yahoo.com.br> Signed-off-by: Osvaldo M. Yasuda <omyasuda@yahoo.com.br> Signed-off-by: João Victor Marques de Oliveira <joao.marques.oliveira@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: cdc: ad7150: create macro for capacitance channelsBárbara Fernandes
Create macro for capacitance channels in order to remove the repeated code and improve its readability. Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br> Signed-off-by: Wilson Sales <spoonm@spoonm.org> Co-developed-by: Wilson Sales <spoonm@spoonm.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-24MAINTAINERS: Add entry for anybuss driversSven Van Asbroeck
Add myself as the maintainer of the anybuss bus driver, and its client drivers. Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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