- 19 Feb, 2024 4 commits
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Olivier Moysan authored
Add support for creating device links out of more DT properties. Signed-off-by:
Olivier Moysan <olivier.moysan@foss.st.com> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-3-f5242a5fb42a@analog.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Nuno Sa authored
'adi,adc-dev' is now deprecated and must not be used anymore. Hence, also remove it from being required. The reason why it's being deprecated is because the axi-adc CORE is now an IIO service provider hardware (IIO backends) for consumers to make use of. Before, the logic with 'adi,adc-dev' was the opposite (it was kind of consumer referencing other nodes/devices) and that proved to be wrong and to not scale. Now, IIO consumers of this hardware are expected to reference it using the io-backends property. Hence, the new '#io-backend-cells' is being added so the device is easily identified as a provider. Reviewed-by:
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Nuno Sa authored
The ad9467 will make use of the new IIO backend framework which is a provider - consumer interface where IIO backends provide services to consumers. As such, and being this device a consumer, add the new generic io-backend property to the bindings. Reviewed-by:
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Matti Vaittinen authored
The loop based 64bit division may run for a long time when dividend is a lot bigger than the divider. Replace the division loop by the div64_u64() which implementation may be significantly faster. Tested-by:
Subhajit Ghosh <subhajit.ghosh@tweaklogic.com> Signed-off-by:
Matti Vaittinen <mazziesaccount@gmail.com> Fixes: 38416c28 ("iio: light: Add gain-time-scale helpers") Link: https://lore.kernel.org/r/Zcn-6e-0-nh2WcfU@drtxq0yyyyyyyyyyyyyby-3.rev.dnainternet.fiSigned-off-by:
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- 17 Feb, 2024 36 commits
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Dimitri Fedrau authored
Add threshold events support for temperature and relative humidity. To enable them the higher and lower threshold registers must be programmed and the higher threshold must be greater then or equal to the lower threshold. Otherwise the event is disabled. Invalid hysteresis values are ignored by the device. There is no further configuration possible. Tested by setting thresholds/hysteresis and turning the heater on/off. Used iio_event_monitor in tools/iio to catch events while constantly displaying temperature and humidity values. Signed-off-by:
Dimitri Fedrau <dima.fedrau@gmail.com> Tested-by:
Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240214085350.19382-4-dima.fedrau@gmail.comSigned-off-by:
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Dimitri Fedrau authored
Add interrupt bindings in example. Signed-off-by:
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Dimitri Fedrau authored
Switch to 16bit register defines and drop the const u8 register pairs. By doing so we change the parameter of functions for reading and writing to the device. Additionally create helper functions that are aware of the new register format and apply them wherever possible. Signed-off-by:
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Naresh Solanki authored
Enable the voltage divider to both receive and provide measurement services by adding #io-channel-cells. This is especially valuable in scenarios where an ADC has an analog frontend, like a voltage divider, and obtaining its raw value isn't interesting. It is desired to get the real voltage before the voltage divider. Signed-off-by:
Naresh Solanki <naresh.solanki@9elements.com> Reviewed-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240206105502.648255-1-naresh.solanki@9elements.comSigned-off-by:
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Basavaraj Natikar authored
On some platforms, ambient color sensors also support the x and y light colors, which represent the coordinates on the CIE 1931 chromaticity diagram. Add light chromaticity x and y. Signed-off-by:
Basavaraj Natikar <Basavaraj.Natikar@amd.com> Signed-off-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20240205185926.3030521-5-srinivas.pandruvada@linux.intel.comSigned-off-by:
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Basavaraj Natikar authored
On some platforms, ambient color sensors also support light color temperature. Add support of light color temperature. Signed-off-by:
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Srinivas Pandruvada authored
Remove hardcoding of values for enum CHANNEL_SCAN_INDEX_INTENSITY and CHANNEL_SCAN_INDEX_ILLUM. Signed-off-by:
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Srinivas Pandruvada authored
Instead of assuming that every channel defined statically by als_channels[] is present, assign dynamically based on presence of the respective usage id in the descriptor. This will allow to register ALS with limited channel support. Append the timestamp as the last channel. Update available_scan_mask to specify all channels which are present. There is no intentional function changes done. Signed-off-by:
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Jesus Gonzalez authored
"10EC5280" is used by several manufacturers like Lenovo, GPD, or AYA (and probably others) in their ACPI table as the ID for the bmi160 IMU. This means the bmi160_i2c driver won't bind to it, and the IMU is unavailable to the user. Manufacturers have been approached on several occasions to try getting a BIOS with a fixed ID, mostly without actual positive results, and since affected devices are already a few years old, this is not expected to change. This patch enables using the bmi160_i2c driver for the bmi160 IMU on these devices. Here is the relevant extract from the DSDT of a GPD Win Max 2 (AMD 6800U model) with the latest firmware 1.05 installed. GPD sees this as WONTFIX with the argument of the device working with the Windows drivers. Device (BMA2) { Name (_ADR, Zero) // _ADR: Address Name (_HID, "10EC5280") // _HID: Hardware ID Name (_CID, "10EC5280") // _CID: Compatible ID Name (_DDN, "Accelerometer") // _DDN: DOS Device Name Name (_UID, One) // _UID: Unique ID Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { Name (RBUF, ResourceTemplate () { I2cSerialBusV2 (0x0069, ControllerInitiated, 0x00061A80, AddressingMode7Bit, "\\_SB.I2CC", 0x00, ResourceConsumer, , Exclusive, ) }) Return (RBUF) /* \_SB_.I2CC.BMA2._CRS.RBUF */ } ... } Signed-off-by:Jesus Gonzalez <jesusmgh@gmail.com> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240207195549.37994-2-jesusmgh@gmail.comSigned-off-by:
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Ricardo B. Marliere authored
Now that the driver core can properly handle constant struct bus_type, move the iio_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Suggested-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Ricardo B. Marliere <ricardo@marliere.net> Acked-by:
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Lorenzo Bianconi authored
Add device bindings for asm330lhhxg1 IMU sensor. The lsm6dsr supports the features and functionality provided by the asm330lhhxg1 via identical interfaces and so is a suitable fallback compatible. Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Acked-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by:
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Lorenzo Bianconi authored
Add support to STM ASM330LHHXG1 (accelerometer and gyroscope) Mems sensor. The ASM330LHHXG1 sensor can use LSM6DSR as fallback device since LSM6DSR implements all the ASM330LHHXG1 features currently implemented in st_lsm6dsx. Link: https://www.st.com/resource/en/datasheet/asm330lhhxg1.pdfSigned-off-by:
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Lorenzo Bianconi authored
Improve kernel docs and comments reporting supported sensors in a list in order to make more easy to add new devices in the future. Signed-off-by:
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Jonathan Cameron authored
Done to reduce boilerplate and simplify code flow by allowing early returns with the lock automatically released. Reviewed-by:
Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-11-jic23@kernel.orgSigned-off-by:
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Jonathan Cameron authored
Reduces boilerplate and allows for simpler to follow direct returns. Reviewed-by:
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Jonathan Cameron authored
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by:
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Jonathan Cameron authored
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by:
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Jonathan Cameron authored
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by:
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Jonathan Cameron authored
This simplifies error return paths. Reviewed-by:
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Jonathan Cameron authored
Similar to existing use of guard() in this driver, iio_device_claim_direct_scoped() will ensure that scope based cleanup occurs. Reviewed-by:
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Jonathan Cameron authored
Switching to the iio_device_claim_direct_scoped() for state and to guard() based unlocking of mutexes simplifies error handling by allowing direct returns when an error is encountered. Reviewed-by:
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Jonathan Cameron authored
Given we now have iio_device_claim_direct_scoped() to perform automatic releasing of direct mode at exit from the scope that follows it, this can be used in conjunction with guard(mutex) etc remove a lot of special case handling. Note that in this particular example code, there is no real reason you can't read channels via sysfs at the same time as filling the software buffer. To make it look more like a real driver constrain raw and processed channel reads from occurring whilst the buffer is in use. Reviewed-by:
David Lechner <dlechner@baylibre.com> Reviewed-by:
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Jonathan Cameron authored
Allows use of: iio_device_claim_direct_scoped(return -EBUSY, indio_dev) { } to automatically call iio_device_release_direct_mode() based on scope. Typically seen in combination with local device specific locks which are already have automated cleanup options via guard(mutex)(&st->lock) and scoped_guard(). Using both together allows most error handling to be automated. Reviewed-by: -
Justin Stitt authored
We're doing some needless string copies when trying to assign the proper `prop` string. We can make `prop` a const char* and simply assign to string literals. For the case where a format string is used, let's extract the parsing logic out into sx9324_parse_phase_prop(). We no longer need to create copies or allocate new memory. sx9324_parse_phase_prop() will simply return the default def value if it fails. This also cleans up some deprecated strncpy() uses [1]. Furthermore, let's clean up this code further by removing some unused defines: | #define SX9324_PIN_DEF "semtech,ph0-pin" | #define SX9324_RESOLUTION_DEF "semtech,ph01-resolution" | #define SX9324_PROXRAW_DEF "semtech,ph01-proxraw-strength" Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Signed-off-by:
Justin Stitt <justinstitt@google.com> Reviewed-by:
Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20240201-strncpy-drivers-iio-proximity-sx9324-c-v5-1-78dde23553bc@google.comSigned-off-by:
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Nikita Mikhailevich authored
New ID was introduced by Chuwi on Minibook X 2023. Signed-off-by:
Nikita Mikhailevich <ermyril@gmail.com> Link: https://lore.kernel.org/r/20240201151848.1666245-1-ermyril@gmail.comSigned-off-by:
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Kim Seer Paller authored
Dual microwave down converter module with input RF and LO frequency ranges from 0.5 to 32 GHz and an output IF frequency range from 0.1 to 8 GHz. It consists of a LNA, mixer, IF filter, DSA, and IF amplifier for each down conversion path. Signed-off-by:
Kim Seer Paller <kimseer.paller@analog.com> Link: https://lore.kernel.org/r/20240123081059.5746-2-kimseer.paller@analog.comSigned-off-by:
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Kim Seer Paller authored
Dual microwave down converter module with input RF and LO frequency ranges from 0.5 to 32 GHz and an output IF frequency range from 0.1 to 8 GHz. It consists of a LNA, mixer, IF filter, DSA, and IF amplifier for each down conversion path. Signed-off-by:
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Andrew Davis authored
Use a device lifecycle managed IIO helper functions. This helps prevent mistakes like unregistering and freeing out of order in cleanup functions and forgetting to unregister and free on error paths. Signed-off-by:
Andrew Davis <afd@ti.com> Link: https://lore.kernel.org/r/20240123140918.215818-4-afd@ti.comSigned-off-by:
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Andrew Davis authored
Use a device lifecycle managed action for regulator disable function. This helps prevent mistakes like unregistering out of order in cleanup functions and forgetting to unregister on error paths. Signed-off-by:
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Andrew Davis authored
Use a device lifecycle managed IIO helper functions. This helps prevent mistakes like unregistering and freeing out of order in cleanup functions and forgetting to unregister and free on error paths. Signed-off-by:
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Andrew Davis authored
Use a device lifecycle managed action for regulator disable function. This helps prevent mistakes like unregistering out of order in cleanup functions and forgetting to unregister on error paths. Signed-off-by:
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Matti Vaittinen authored
Add undersigned as a maintainer for IIO GTS helper's KUnit tests. Signed-off-by:
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Matti Vaittinen authored
Some light sensors can adjust both the HW-gain and integration time. There are cases where adjusting the integration time has similar impact to the scale of the reported values as gain setting has. IIO users do typically expect to handle scale by a single writable 'scale' entry. Driver should then adjust the gain/time accordingly. It however is difficult for a driver to know whether it should change gain or integration time to meet the requested scale. Usually it is preferred to have longer integration time which usually improves accuracy, but there may be use-cases where long measurement times can be an issue. Thus it can be preferable to allow also changing the integration time - but mitigate the scale impact by also changing the gain underneath. Eg, if integration time change doubles the measured values, the driver can reduce the HW-gain to half. The theory of the computations of gain-time-scale is simple. However, some people (undersigned) got that implemented wrong for more than once. Hence some gain-time-scale helpers were introduced. Add some simple tests to verify the most hairy functions. Signed-off-by:
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Mårten Lindahl authored
The vcnl4040/vcnl4200 proximity sensor defaults to 12 bit data resolution, but the chip also supports 16 bit data resolution, which is called proximity high definition (PS_HD). Make the vcnl4040/vcnl4200 proximity sensor use the high definition for all data readings. Please note that in order to preserve the 12 bit integer part of the in_proximity_raw output, the format is changed from integer to fixed point. Signed-off-by:
Mårten Lindahl <marten.lindahl@axis.com> Link: https://lore.kernel.org/r/20231221-vcnl4000-ps-hd-v3-1-6dcc889372be@axis.comSigned-off-by:
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Nuno Sa authored
Make sure we can specify the IRQ trigger type from firmware and drivers won't ignore it. In fact, this how it should be done but since someone might be already depending on the driver to hardcode the trigger type (and not specifying it in firmware), let's do it like this so there's no possible breakage. Signed-off-by:
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Nuno Sa authored
There's no need to call both irq_get_irq_data() and irqd_get_trigger_type() as we already have an helper for that. This allows for code simplification. Signed-off-by:
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