- 21 Aug, 2024 4 commits
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Yang Ruibin authored
The debugfs_create_dir() function returns error pointers. It never returns NULL. So use IS_ERR() to check it. Signed-off-by:
Yang Ruibin <11162571@vivo.com> Link: https://patch.msgid.link/20240821083911.3411-1-11162571@vivo.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Andreas Klinger authored
Retain documentation on how the voc index is actually calculated in driver code as it'll be removed in Documentation. This is a follow up on patch "[PATCH] iio: ABI: remove duplicate in_resistance_calibbias" from David. Signed-off-by:
Andreas Klinger <ak@it-klinger.de> Link: https://patch.msgid.link/ZsWdFOIkDtEB9WGO@mail.your-server.deSigned-off-by:
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David Lechner authored
In commit 0f718e10 ("iio: ABI: add missing calibbias attributes"), the in_resistance_calibbias attribute was added to the main IIO ABI documentation. This attribute is was already documented in sysfs-bus-iio-chemical-sgp40. This resulted in a duplicate entry that is causing documentation build warnings. This removes the attribute from the sgp40 documentation in favor of the main IIO ABI documentation since this attribute fits the established pattern of standard IIO attributes. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/linux-next/20240820134739.50c771cb@canb.auug.org.au/Signed-off-by:
David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20240820-iio-abi-remove-dup-in_resistance_calibbias-v1-1-e64e58cabb14@baylibre.comSigned-off-by:
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Krzysztof Kozlowski authored
Properties with variable number of items per each device are expected to have widest constraints in top-level "properties:" block and further customized (narrowed) in "if:then:". Add missing top-level constraints for clock-names. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by:
Fabrice Gasnier <fabrice.gasnier@foss.st.com> Acked-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20240818172951.121983-1-krzysztof.kozlowski@linaro.orgSigned-off-by:
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- 17 Aug, 2024 12 commits
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David Lechner authored
There are a number of calibbias and calibbias_available attributes that are being used by various drivers that have not been documented yet. This adds attributes found by searching the code for: BIT(IIO_CHAN_INFO_CALIBSCALE) A couple of not quite alphabetical order attributes were moved while touching this. Signed-off-by: -
David Lechner authored
This adds additional calibscale attributes to the ABI documentation for instances found in drivers by searching the code for: BIT(IIO_CHAN_INFO_CALIBSCALE) Signed-off-by: -
David Lechner authored
Sort calibscale attributes so that when we add more, they can also be added in alphabetical order. Signed-off-by:
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David Lechner authored
There are a number of light sensor drivers that have various calibscale_available attributes. Up to now, these were missing from the documentation. Kernel version 4.8 is used since the first use appears to be in commit eb869ade ("iio: Add tcs3472 color light sensor driver"). Signed-off-by:
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Abhash Jha authored
counts_per_uvi depends on the current value of gain and resolution. Hence, we cannot use the hardcoded value 96. The `counts_per_uvi` function gives the count based on the current gain and resolution (integration time). Signed-off-by:
Abhash Jha <abhashkumarjha123@gmail.com> Link: https://patch.msgid.link/20240814113135.14575-3-abhashkumarjha123@gmail.comSigned-off-by:
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Abhash Jha authored
Add new ALS channel and allow reading lux and scale values. Also provide gain and resolution configuration for ALS channel. Add automatic mode switching between the UVS and ALS channel based on which channel is being accessed. The default mode in which the sensor start is ALS mode. Signed-off-by:
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David Lechner authored
Update the ad4695 documentation to say that buffered reads are supported. Since there are 4 possible modes of reading conversion data, it is useful to know which one is actually being used, namely the advanced sequencer mode. Signed-off-by:
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David Lechner authored
This implements buffered reads for the ad4695 driver using the typical triggered buffer implementation, including adding a soft timestamp channel. The chip has 4 different modes for doing conversions. The driver is using the advanced sequencer mode since that is the only mode that allows individual configuration of all aspects each channel (e.g. bipolar config currently and oversampling to be added in the future). Signed-off-by:
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Dan Carpenter authored
If we're returning because "reg >= HX9023S_CH_NUM" then set the error code to -ENIVAL instead of success. Fixes: 60df5482 ("iio: proximity: Add driver support for TYHX's HX9023S capacitive proximity sensor") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Link: https://patch.msgid.link/49b5a9bc-e5ca-43a7-a665-313eb06fbe27@stanley.mountainSigned-off-by:
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Marek Vasut authored
The current code is always iterating over two fields in the noa1305_int_time_available array. Fix iteration limit, which has to be halved to avoid out of bounds access in case the value that is being looked up is not in the array. Fixes: 025f23cf ("iio: light: noa1305: Make integration time configurable") Reported-by:
Marek Vasut <marex@denx.de> Link: https://patch.msgid.link/20240814191946.81386-1-marex@denx.deSigned-off-by:
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Joshua Felmeden authored
Add support for ENS210/ENS210A/ENS211/ENS212/ENS213A/ENS215. The ENS21x is a family of temperature and relative humidity sensors with accuracies tailored to the needs of specific applications. Signed-off-by:
Joshua Felmeden <jfelmeden@thegoodpenguin.co.uk> Link: https://patch.msgid.link/20240805-ens21x-v6-2-5bb576ef26a6@thegoodpenguin.co.ukSigned-off-by:
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Joshua Felmeden authored
Add device tree documentation for ENS210 family of temperature and humidity sensors Signed-off-by:
Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20240805-ens21x-v6-1-5bb576ef26a6@thegoodpenguin.co.ukSigned-off-by:
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- 10 Aug, 2024 24 commits
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Nuno Sa authored
Use IS_ENABLED(CONFIG_DEBUG_FS) to return in case debugfs is not present. Since this is known at compile time, it allows the compiler to drop any unused code. Therefore no need to wrap the code with #ifdef. While at it make adis16460_debugfs_init() void as the return code is ignored. Signed-off-by:
Nuno Sa <nuno.sa@analog.com> Link: https://patch.msgid.link/20240809-dev-adis-debugfs-improv-v1-4-d3adb6996518@analog.comSigned-off-by:
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Nuno Sa authored
Use IS_ENABLED(CONFIG_DEBUG_FS) to return in case debugfs is not present. Since this is known at compile time, it allows the compiler to drop any unused code. Therefore no need to wrap the code with #ifdef. While at it make adis16400_debugfs_init() void as the return code is ignored. Signed-off-by:
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Nuno Sa authored
Use IS_ENABLED(CONFIG_DEBUG_FS) to return in case debugfs is not present. Since this is known at compile time, it allows the compiler to drop any unused code. Therefore no need to wrap the code with #ifdef. While at it make adis16480_debugfs_init() void as the return code is ignored. Signed-off-by:
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Nuno Sa authored
Use IS_ENABLED(CONFIG_DEBUG_FS) to return early in case debugfs is not present. Since this is known at compile time, it allows the compiler to drop any unused code. Therefore no need to wrap the code with #ifdef. Signed-off-by:
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Dan Carpenter authored
This error path was intended to return, and not just print an error. The current code will lead to an error pointer dereference. Fixes: 371f778b ("iio: adc: add support for pac1921") Signed-off-by:
Matteo Martelli <matteomartelli3@gmail.com> Link: https://patch.msgid.link/1fa4ab12-0939-477d-bc92-306fd32e4fd9@stanley.mountainSigned-off-by:
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Colin Ian King authored
There is a spelling mistake in a dev_warn message. Fix it. Signed-off-by:
Colin Ian King <colin.i.king@gmail.com> Link: https://patch.msgid.link/20240807094745.4174785-1-colin.i.king@gmail.comSigned-off-by:
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Dan Carpenter authored
This comparison should be >= ARRAY_SIZE() instead of >. The "mspan" variable is later used as an array index into ltc2664_mspan_lut[] so this is an off by one bug. Fixes: 4cc2fc44 ("iio: dac: ltc2664: Add driver for LTC2664 and LTC2672") Signed-off-by:
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Denis Benato authored
Prevent triggers from stop working after the device has entered sleep: use iio_device_suspend_triggering and iio_device_resume_triggering helpers. Signed-off-by:
Denis Benato <benato.denis96@gmail.com> Link: https://patch.msgid.link/20240807185619.7261-3-benato.denis96@gmail.comSigned-off-by:
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Denis Benato authored
When a machine enters a sleep state while a trigger is associated to an iio device that trigger is not resumed after exiting the sleep state: provide iio device drivers a way to suspend and resume the associated trigger to solve the aforementioned bug. Each iio driver supporting external triggers is expected to call iio_device_suspend_triggering before suspending, and iio_device_resume_triggering upon resuming. Signed-off-by:
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Detlev Casanova authored
Add rockchip,rk3576-saradc compatible string. The saradc on RK3576 is compatible with the one on RK3588, so they are used together in an arm of the oneOf. Signed-off-by:
Detlev Casanova <detlev.casanova@collabora.com> Reviewed-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patch.msgid.link/20240802214612.434179-5-detlev.casanova@collabora.comSigned-off-by:
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David Lechner authored
The common-mode-channel property is a scalar, not an array, so we should not be using items: in the schema when specifying allowable values. Reported-by:
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Abhash Jha authored
Proximity and gesture offset registers perform offset correction to improve cross-talk performance. Added `calibbias` to the proximity and gesture channels. Provided facility to set calibbias based on the channel number. Signed-off-by:
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Olivier Moysan authored
Add scaling support to STM32 DFSDM. When used in an analog context, a DFSDM filter typically converts the data from a sigma delta modulator. The IIO device associated to the DFSDM filter provides these data as raw data. The IIO device can provide scaling information (voltage and offset) to allow conversion of raw data into physical values. With the new binding based on IIO backend framework, the sigma delta modulators are defined as backends providing scaling information. The scaling is not supported with legacy binding. Signed-off-by:
Olivier Moysan <olivier.moysan@foss.st.com> Acked-by:
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Olivier Moysan authored
The legacy sd modulator driver registers the sigma delta modulator as an IIO channel provider. This implementation is not convenient when the SD modulator has to be cascaded with another IIO device. The scaling information is distributed across devices, which makes it difficult to report consistent scaling data on IIO devices. The solution is to expose these cascaded IIO devices as an aggregate device, which report global scaling information. Add IIO backend support to SD modulator to allow scaling information management. Signed-off-by:
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Olivier Moysan authored
Move to generic channels binding to ease new backend framework adoption and prepare the convergence with MDF IP support on STM32MP2 SoC family. Legacy binding: DFSDM is an IIO channel consumer. SD modulator is an IIO channels provider. The channel phandles are provided in DT through io-channels property and channel indexes through st,adc-channels property. New binding: DFSDM is an IIO channel provider. The channel indexes are given by reg property in channel child node. This new binding is intended to be used with SD modulator IIO backends. It does not support SD modulator legacy IIO devices. The st,adc-channels property presence is used to discriminate between legacy and backend bindings. The support of the DFSDM legacy channels and SD modulator IIO devices is kept for backward compatibility. Signed-off-by:
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Olivier Moysan authored
Allow to specify the reference voltage used by the SD modulator. When the SD modulator is defined as an IIO backend, the reference voltage can be used to evaluate scaling information of the IIO device. The reference voltage is not used otherwise. Signed-off-by:
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Olivier Moysan authored
The legacy sd modulator driver registers the sigma delta modulator as an IIO channel provider. This implementation is not convenient when the SD modulator has to be cascaded with another IIO device. The scaling information is distributed across devices, which makes it difficult to report consistent scaling data on IIO devices. The solution is to expose these cascaded IIO devices as an aggregate device, which report global scaling information. Add IIO backend support to SD modulator to allow scaling information management. Signed-off-by:
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Olivier Moysan authored
Change the DFSDM binding to use the new IIO backend framework, along with the adoption of IIO generic channels. This binding change allows to add scaling support to the DFSDM. Keep the legacy binding as deprecated for backward compatibility. The io-backends property is supported only in generic IIO channel binding. - Channel description with the generic binding (Audio and Analog): Properties superseded by generic properties: st,adc-channels: becomes "reg" property in channel node st,adc-channel-names: becomes "label" property in channel node Properties moved to channel child node: st,adc-channel-types: becomes st,adc-channel-type st,adc-channel-clk-src, st,adc-alt-channel - Analog binding: DFSDM filter channel is configured as an IIO backend consumer. Add io-backends property in channel child nodes. DFSDM is no more configured as a channel consumer from SD modulator. Use of io-channels in DFSDM node is deprecated. - Audio binding: DFSDM audio DAI is configured as a channel consumer from DFSDM filter. No change compare to legacy. Signed-off-by: -
Olivier Moysan authored
Add an API to support IIO generic channels binding: http://devicetree.org/schemas/iio/adc/adc.yaml# This new API is needed, as generic channel DT node isn't populated as a device. Add devm_iio_backend_fwnode_get() to allow an IIO device backend consumer to reference backend phandles in its child nodes. Signed-off-by:
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Olivier Moysan authored
Add iio_backend_disable() and iio_backend_enable() APIs to allow IIO backend consumer to request backend disabling and enabling. Signed-off-by:
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Olivier Moysan authored
Add iio_backend_read_scale() and iio_backend_read_offset() services to read channel scale and offset from an IIO backbend device. Also add a read_raw callback which replicates the read_raw callback of the IIO framework, and is intended to request miscellaneous channel attributes from the backend device. Both scale and offset helpers use this callback. Signed-off-by:
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Krzysztof Kozlowski authored
All compatibles in this binding without prefixes were deprecated, so adding a new deprecated one after some time is not allowed, because it defies the core logic of deprecating things. Drop the AK09916 vendorless compatible. Fixes: 76e28aa9 ("iio: magnetometer: ak8975: add AK09116 support") Signed-off-by:
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Krzysztof Kozlowski authored
All compatibles in this binding without prefixes were deprecated, so adding a new deprecated one after some time is not allowed, because it defies the core logic of deprecating things. Drop the AK09916 vendorless compatible. Fixes: 76e28aa9 ("iio: magnetometer: ak8975: add AK09116 support") Signed-off-by:
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Nuno Sa authored
Document the debugfs interface for the IIO ad9467 high speed ADC. Signed-off-by:
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