- 08 Mar, 2020 40 commits
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Jean-Baptiste Maneyrol authored
InvenSense ICP-101xx sensors are a family of barometric pressure and temperature sensor. These devices are I2C only and use a specific protocol of commands/responses. Data transfer is secured by using crc8. Driver provides processed pressure and raw temperature data. Signed-off-by:
Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Alexandru Tachici authored
Currently iio_debugfs_read_reg calls debugfs_reg_access every time it is ran. Reading the same hardware register multiple times during the same reading of a debugfs file can cause unintended effects. For example for each: cat iio:device0/direct_reg_access the file_operations.read function will be called at least twice. First will return the full length of the string in bytes and the second will return 0. This patch makes iio_debugfs_read_reg to call debugfs_reg_access only when the user's buffer position (*ppos) is 0. (meaning it is the beginning of a new reading of the debugfs file). Fixes: e553f182 ("staging: iio: core: Introduce debugfs support, add support for direct register access") Signed-off-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by:
Alexandru Tachici <alexandru.tachici@analog.com> Signed-off-by:
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Alexandru Ardelean authored
The 'state_lock' mutex was renamed from 'txrx_lock' in a previous patch and is intended to be used by ADIS drivers to protect the state of devices during consecutive R/W ops. The initial patch that introduced this change did not do a good [well, any] job at explaining this. This patch adds a comment to the 'state_lock' better explaining it's use. Signed-off-by:
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Alexandru Ardelean authored
The doc-string has been neglected over time. This change updates it with all the missing info. Signed-off-by:
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Alexandru Ardelean authored
This change adds a doc-string for the 'adis' struct. It details the fields and their roles. Signed-off-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
Sergiu Cuciurean <sergiu.cuciurean@analog.com> Signed-off-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
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Sergiu Cuciurean authored
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd27 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by:
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Marek Szyprowski authored
Don't confuse user with meaningless warning about the failure in getting regulators in case of deferred probe. Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
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Rohit Sarkar authored
Since there are no uses of the old GPIO API, remove the item from the TODO. Signed-off-by:
Rohit Sarkar <rohitsarkar5398@gmail.com> Signed-off-by:
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Sergiu Cuciurean authored
This change adds support for the HMC1119 Silicon Digial Attenuator. The HMC1119 is a broadband, highly accurate, 7-bit digital attenuator, operating from 0.1 GHz to 6.0 GHz with 31.5 dB attenuation control range in 0.25 dB steps. Link: https://www.analog.com/media/en/technical-documentation/data-sheets/hmc1119.pdfSigned-off-by:
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Maxime Roussin-Bélanger authored
The chip is configured in 24 bit mode. The values read from it must always be treated as is. This fixes the issue by replacing the previous 16 bits value by a 24 bits buffer. This changes affects the value output by previous version of the driver, since the least significant byte was missing. The upper half of 16 bit values previously output are now the upper half of a 24 bit value. Fixes: e01e7eaf ("iio: light: introduce si1133") Reported-by:
Simon Goyette <simon.goyette@gmail.com> Co-authored-by:
Guillaume Champagne <champagne.guillaume.c@gmail.com> Signed-off-by:
Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com> Signed-off-by:
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Alexandru Tachici authored
Adding dt-bindings documentation for AD5770R DAC. Signed-off-by:
Mircea Caprioru <mircea.caprioru@analog.com> Signed-off-by:
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Alexandru Tachici authored
The AD5770R is a 6-channel, 14-bit resolution, low noise, programmable current output digital-to-analog converter (DAC) for photonics control applications. It contains five 14-bit resolution current sourcing DAC channels and one 14-bit resolution current sourcing/sinking DAC channel. Signed-off-by:
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Gregor Riepl authored
The look-up-table for currens to lux is simply specifying all currents from 5..47 mA, if we add some values for 0..5 we can just select the index for the lux value in an array from the mA value. Use clamp() to get the value in the range of values in the array. Cc: Jonathan Bakker <xc-racer2@live.ca> Signed-off-by:
Gregor Riepl <onitake@gmail.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Daniel Junho authored
This patch add device tree binding documentation for AD7923 adc in YAML format. Signed-off-by:
Daniel Junho <djunho@gmail.com> Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Matt Ranostay authored
Since Atlas Scientific device support only varies from the compatible string is ideal all the respective docs are merged into a single doc named atlas,sensor.yaml Reviewed-by:
Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by:
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Matt Ranostay authored
Atlas Scientific DO-SM OEM sensor reads disolved oxygen in a solution. This is reported back as mg/L which maps directly to ppm and so the IIO_CONCENTRATION channel type can be used. Signed-off-by:
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Matt Ranostay authored
Sensors don't actually need a interrupt line to give valid readings, and can triggered with CONFIG_IIO_HRTIMER_TRIGGER as well. Remove the required check for interrupt, and continue along in the probe function. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Temperature sensor works correctly only when accel and/or gyro is turned on. Prevent polling value if they are not running. Anyway it doesn't make sense to use it without sensor engines on. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Use runtime power management for handling chip power and sensor engines on/off. Simplifies things a lot since pm runtime already has reference counter. Usage of autosuspend reduces the number of power on/off. This makes polling interface now usable to get data at low frequency. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Sampling rate can be changed while the chip is running. It can be useful thus do not prevent it. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Rework fifo enable/disable in a separate function. Signed-off-by:
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Jean-Baptiste Maneyrol authored
When reading data with the polling interface, we need to wait at 1 sampling period to have a sample. For gyroscope and magnetometer, we need to wait for 2 periods before having a correct sample. Not suitable for stable or backporting. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Rewrite clock management to use automatic clock switching present since MPU6500. Sensors engine management can now turn on or off a batch of sensors which simplifies usage a lot. Temperature sensor is now turned on/off depending on usage. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Turning vdd regulator on requires a consequent sleep for the chip to power on correctly. Turning vddio regulator is much faster. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Old chips using spi require for a full reset to manually reset all signal path. This does not harm when using i2c so do it inconditionally. Exclude i2c only chips. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Init chip_config early and use its values for initial setup. More coherent, prevent possible mistakes. Signed-off-by:
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Jean-Baptiste Maneyrol authored
Do not change the sampling rate value. Let userspace decide what is the sampling rate to use. Read only the requested axis. Signed-off-by:
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Jean-Baptiste Maneyrol authored
This way there is no need anymore to export the power function to i2c and spi modules. Bus setup is done inside init when power is on and the result is now checked. Signed-off-by:
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Jean-Baptiste Maneyrol authored
If we are here it means we have fifo enabled for 1 sensor at least. And interrupt is always required for using trigger. Signed-off-by:
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Jean-Baptiste Maneyrol authored
i2c auxiliary mux is done by analog switches. You do not need to set them for every i2c transfer. Just set i2c bypass bit at init and do noting in i2c de/select. Signed-off-by:
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Jonathan Cameron authored
Split the binding in two to reflect the threshold monitor capabilities and hence interrupts vs the more straight forward parts that don't have this facility. Signed-off-by:
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Fabrice Gasnier authored
Clock should be enabled as soon as using master modes, even before enabling timer. Or, this may provoke bad behavior on the other end (slave timer). Then, introduce 'clk_enabled' flag, instead of relying on CR1 EN bit, to keep track of clock being enabled (balanced refcount). Propagate this anywhere else in the driver. Also add 'remove' routine to stop timer and disable clock in case it has been left enabled. Enforce the user interface has been unregistered in the remove routine, before disabling the hardware to avoid possible race. So, remove use of devm_ variant to register triggers and unregister them before the hardware gets disabled [1]. [1] https://patchwork.kernel.org/patch/9956247/Signed-off-by:
Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by:
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David Heidelberg authored
- allow autoloading when build as module and defined inside DT Signed-off-by:
David Heidelberg <david@ixit.cz> Signed-off-by:
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David Heidelberg authored
Use devm_add_action_or_reset to automatically disable the device and allow you to get rid of the remove function entirely. Signed-off-by:
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David Heidelberg authored
AL3320a is fairly simple chip, so for suspend is enough to disable and later enable it again. Signed-off-by:
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David Heidelberg authored
Based on: - 3320A in-kernel driver - https://www.spinics.net/lists/linux-iio/msg25145.html - https://lore.kernel.org/patchwork/patch/684179/ I decided to keep it aside of AL3320A due to different approach and much simpler design of 3010. Tested on Nexus 7 2012 (grouper/tilapia). Tested-by:
Dmitry Osipenko <digetx@gmail.com> Tested-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Reviewed-by:
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