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2024-02-19iio: imu: bmi323: Add ACPI Match TableJonathan LoBue1-0/+21
Adds the ACPI match table for ASUS ROG ALLY to load the bmi323 driver with an ACPI match of "BOSC0200", and a comment about duplicate ACPI identifiers between devices using the bmc150 and bmi323 chips. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Co-developed-by: Luke D. Jones <luke@ljones.dev> Signed-off-by: Luke D. Jones <luke@ljones.dev> Co-developed-by: Denis Benato <benato.denis96@gmail.com> Signed-off-by: Denis Benato <benato.denis96@gmail.com> Co-developed-by: Antheas Kapenekakis <lkml@antheas.dev> Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev> Signed-off-by: Jonathan LoBue <jlobue10@gmail.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20240216182308.27125-1-jlobue10@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: accel: bmc150: Document duplicate ACPI entries with bmi323 driverJonathan LoBue1-0/+13
Adds a description of the duplicate ACPI identifier issue between devices using bmc150 and bmi323. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Co-developed-by: Luke D. Jones <luke@ljones.dev> Signed-off-by: Luke D. Jones <luke@ljones.dev> Co-developed-by: Denis Benato <benato.denis96@gmail.com> Signed-off-by: Denis Benato <benato.denis96@gmail.com> Co-developed-by: Antheas Kapenekakis <lkml@antheas.dev> Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev> Signed-off-by: Jonathan LoBue <jlobue10@gmail.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20240216182253.27069-1-jlobue10@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: adc: ti-ads1298: Add driverMike Looijmans3-0/+781
Skeleton driver for the TI ADS1298 medical ADC. This device is typically used for ECG and similar measurements. Supports data acquisition at configurable scale and sampling frequency. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Link: https://lore.kernel.org/r/20240216153020.485201-2-mike.looijmans@topic.nl Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19dt-bindings: iio: adc: ti-ads1298: Add bindingsMike Looijmans1-0/+80
Bindings for the TI ADS1298 medical ADC. This device is typically used for ECG and similar measurements. Supports data acquisition at configurable scale and sampling frequency. The device has so many options for connecting stuff, at this point the bindings aren't nearly complete but partial bindings are better than no bindings at all. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240216153020.485201-1-mike.looijmans@topic.nl Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: pressure: hsc030pa add triggered bufferPetre Rodan3-0/+53
Add triggered buffer feature. Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Link: https://lore.kernel.org/r/20240211075645.28777-7-petre.rodan@subdimension.ro Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: pressure: hsc030pa add mandatory delayPetre Rodan3-0/+6
Add a mandatory 2ms delay between consecutive chip reads. A Technical Note pdf specifies that the measurement cycle in these chips takes around 1.26ms. By adding this 2ms delay we make sure that we never get stale measurements. For more details, please see "Figure 1" in the pdf below: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/common/documents/sps-siot-sleep-mode-technical-note-008286-1-en-ciid-155793.pdf Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Link: https://lore.kernel.org/r/20240211075645.28777-6-petre.rodan@subdimension.ro Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: pressure: hsc030pa: update datasheet URLsPetre Rodan2-3/+4
Provide bus-specific technical datasheet in the _i2c.c _spi.c headers instead of the generic one. Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Link: https://lore.kernel.org/r/20240211075645.28777-5-petre.rodan@subdimension.ro Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: pressure: hsc030pa: include cleanupPetre Rodan3-0/+6
Add includes based on prior reviews from Andy. Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Link: https://lore.kernel.org/r/20240211075645.28777-4-petre.rodan@subdimension.ro Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: pressure: hsc030pa: use signed type to hold div_64() resultPetre Rodan1-1/+1
Use signed type to variable holding the result given by div_s64(). Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Link: https://lore.kernel.org/r/20240211075645.28777-3-petre.rodan@subdimension.ro Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19dt-bindings: iio: pressure: honeywell,hsc030pa.yaml add spi propsPetre Rodan1-0/+3
Add spi-peripheral-props.yaml requirement needed by the spi-max-frequency property. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro> Link: https://lore.kernel.org/r/20240211075645.28777-2-petre.rodan@subdimension.ro Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: st_sensors: lsm9ds0: Use common style for terminator in ID tablesandy.shevchenko@gmail.com1-1/+1
Use common style for a terminator entry in the ID tables. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240211201526.1518165-4-andy.shevchenko@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: st_sensors: lsm9ds0: Don't use "proxy" headersandy.shevchenko@gmail.com4-5/+12
Update header inclusions to follow IWYU (Include What You Use) principle. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240211201526.1518165-3-andy.shevchenko@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: st_sensors: lsm9ds0: Use dev_err_probe() everywhereandy.shevchenko@gmail.com1-10/+7
Use dev_err_probe() everywhere where it is appropriate. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240211201526.1518165-2-andy.shevchenko@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: adc: adi-axi-adc: move to backend frameworkNuno Sa3-358/+96
Move to the IIO backend framework. Devices supported by adi-axi-adc now register themselves as backend devices. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-7-f5242a5fb42a@analog.com Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: adc: ad9467: convert to backend frameworkNuno Sa2-91/+178
Convert the driver to use the new IIO backend framework. The device functionality is expected to be the same (meaning no added or removed features). Also note this patch effectively breaks ABI and that's needed so we can properly support this device and add needed features making use of the new IIO framework. Given the lack of features (and devices supported) in the ad9467 driver compared with the ADI out of tree version, we don't expect any user of the upstream driver so no one should notice the ABI breakage. However, if someone is affected by this, ADI will happily support transitioning to the backend framework. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-6-f5242a5fb42a@analog.com Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: add the IIO backend frameworkNuno Sa5-0/+508
This is a Framework to handle complex IIO aggregate devices. The typical architecture is to have one device as the frontend device which can be "linked" against one or multiple backend devices. All the IIO and userspace interface is expected to be registers/managed by the frontend device which will callback into the backends when needed (to get/set some configuration that it does not directly control). The basic framework interface is pretty simple: - Backends should register themselves with @devm_iio_backend_register() - Frontend devices should get backends with @devm_iio_backend_get() Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-5-f5242a5fb42a@analog.com Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: buffer-dmaengine: export buffer alloc and free functionsNuno Sa3-3/+9
Export iio_dmaengine_buffer_free() and iio_dmaengine_buffer_alloc(). This is in preparation of introducing IIO backends support. This will allow us to allocate a buffer and control it's lifetime from a device different from the one holding the DMA firmware properties. Effectively, in this case the struct device holding the firmware information about the DMA channels is not the same as iio_dev->dev.parent (typical case). While at it, namespace the buffer-dmaengine exports and update the current user of these buffers. Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-4-f5242a5fb42a@analog.com Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19of: property: add device link support for io-backendsOlivier Moysan1-0/+2
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19dt-bindings: adc: axi-adc: update bindings for backend frameworkNuno Sa1-3/+5
'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: Rob Herring <robh@kernel.org> Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-2-f5242a5fb42a@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19dt-bindings: adc: ad9467: add new io-backend propertyNuno Sa1-0/+4
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: Rob Herring <robh@kernel.org> Signed-off-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-1-f5242a5fb42a@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19iio: gts-helper: Fix division loopMatti Vaittinen1-14/+1
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: 38416c28e168 ("iio: light: Add gain-time-scale helpers") Link: https://lore.kernel.org/r/Zcn-6e-0-nh2WcfU@drtxq0yyyyyyyyyyyyyby-3.rev.dnainternet.fi Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: humidity: hdc3020: add threshold events supportDimitri Fedrau1-0/+247
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17dt-bindings: iio: humidity: hdc3020: add interrupt bindings in exampleDimitri Fedrau1-0/+3
Add interrupt bindings in example. Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20240214085350.19382-3-dima.fedrau@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: humidity: hdc3020: switch to 16bit register definesDimitri Fedrau1-137/+63
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: Dimitri Fedrau <dima.fedrau@gmail.com> Link: https://lore.kernel.org/r/20240214085350.19382-2-dima.fedrau@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17dt-bindings: iio: afe: voltage-divider: Add io-channel-cellsNaresh Solanki1-0/+11
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: hid-sensor-als: Add light chromaticity supportBasavaraj Natikar2-0/+49
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: hid-sensor-als: Add light color temperature supportBasavaraj Natikar2-0/+22
On some platforms, ambient color sensors also support light color temperature. Add support of light color temperature. 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/20240205185926.3030521-4-srinivas.pandruvada@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: hid-sensor-als: Remove hardcoding of values for enumsSrinivas Pandruvada1-2/+2
Remove hardcoding of values for enum CHANNEL_SCAN_INDEX_INTENSITY and CHANNEL_SCAN_INDEX_ILLUM. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20240205185926.3030521-3-srinivas.pandruvada@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: hid-sensor-als: Assign channels dynamicallySrinivas Pandruvada1-16/+35
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: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20240205185926.3030521-2-srinivas.pandruvada@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17Add 10EC5280 to bmi160_i2c ACPI IDs to allow binding on some devicesJesus Gonzalez1-0/+9
"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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: core: make iio_bus_type constRicardo B. Marliere2-2/+2
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: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240208-bus_cleanup-iio-v1-1-4a167c3b5fb3@marliere.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17dt-bindings: iio: imu: st_lsm6dsx: add asm330lhhxg1Lorenzo Bianconi1-1/+3
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: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/942452ec9626bc1166501cec0fa88c369e28ec6f.1706961432.git.lorenzo@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: imu: st_lsm6dsx: add support to ASM330LHHXG1Lorenzo Bianconi6-0/+19
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.pdf Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/e3dbe4720cdf407d0152e93b1331306a8c7f5df3.1706961432.git.lorenzo@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: imu: st_lsm6dsx: improve kernel docs and commentsLorenzo Bianconi3-14/+71
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: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/d365d048253d2ff9ee0092d391bbaa9cf0737cff.1706961432.git.lorenzo@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: adc: ad7091r-base: Use auto cleanup of locks.Jonathan Cameron1-17/+8
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.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: adc: ad4130: Use automatic cleanup of locks and direct mode.Jonathan Cameron1-79/+52
Reduces boilerplate and allows for simpler to follow direct returns. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-10-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: proximity: sx9310: Use automated cleanup for locks and IIO mode claiming.Jonathan Cameron1-75/+39
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-9-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: proximity: sx9324: Use automated cleanup for locks and IIO mode claiming.Jonathan Cameron1-70/+39
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-8-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: proximity: sx9360: Use automated cleanup for locks and IIO mode claiming.Jonathan Cameron1-76/+39
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-7-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: adc: max1363: Use automatic cleanup for locks and iio mode claiming.Jonathan Cameron1-92/+79
This simplifies error return paths. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-6-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: imu: bmi323: Use cleanup handling for iio_device_claim_direct_mode()Jonathan Cameron1-47/+31
Similar to existing use of guard() in this driver, iio_device_claim_direct_scoped() will ensure that scope based cleanup occurs. Reviewed-by: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-5-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: accel: adxl367: Use automated cleanup for locks and iio direct mode.Jonathan Cameron1-179/+118
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: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-4-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: dummy: Use automatic lock and direct mode cleanup.Jonathan Cameron1-96/+89
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: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-3-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: locking: introduce __cleanup() based direct mode claiming infrastructureJonathan Cameron1-0/+28
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: Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-2-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: sx9324: avoid copying property stringsJustin Stitt1-29/+40
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: accel: mxc4005: new ACPI ID for the MXC6655 accelerometerNikita Mikhailevich1-0/+1
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: frequency: admfm2000: New driverKim Seer Paller4-0/+294
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17dt-bindings: iio: frequency: add admfm2000Kim Seer Paller2-0/+134
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> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240123081059.5746-1-kimseer.paller@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: health: afe4404: Use devm IIO helpersAndrew Davis1-29/+7
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.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-17iio: health: afe4404: Use devm action helper for regulator disableAndrew Davis1-12/+17
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: Andrew Davis <afd@ti.com> Link: https://lore.kernel.org/r/20240123140918.215818-3-afd@ti.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>