summaryrefslogtreecommitdiff
AgeCommit message (Collapse)AuthorFilesLines
2022-09-22Merge tag 'gnss-6.1-rc1' of ↵Greg Kroah-Hartman1-2/+2
https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss into char-misc-next Johan writes: "GNSS updates for 6.1-rc1 Here are the GNSS updates for 6.1-rc1, which includes a single IDA API cleanup. Everything has been in linux-next with no reported issues." * tag 'gnss-6.1-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss: gnss: replace ida_simple API
2022-09-22counter: Realign counter_comp comment block to 80 charactersWilliam Breathitt Gray1-20/+20
The member documentation comment lines for struct counter_comp extend past the 80-characters column boundary due to extra identation at the start of each section. This patch realigns the comment block within the 80-characters boundary by removing these superfluous indents. Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Link: https://lore.kernel.org/r/20220902120839.4260-1-william.gray@linaro.org/ Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Link: https://lore.kernel.org/r/8294b04153c33602e9c3dd21ac90c1e99bd0fdaf.1663844776.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-21iio: adc: mcp3911: add support for oversampling ratioMarcus Folkesson1-0/+58
The chip supports oversampling ratio, so expose it to userspace. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220815061625.35568-9-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21dt-bindings: iio: adc: mcp3911: add microchip,data-ready-hiz entryMarcus Folkesson1-0/+7
The Data Ready Output Pin is either hard wired to work as high impedance or push-pull. Make it configurable. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220815061625.35568-8-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: adc: mcp3911: add support for interruptsMarcus Folkesson1-0/+53
Make it possible to read values upon interrupts. Configure Data Ready Signal Output Pin to either HiZ or push-pull and use it as interrupt source. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220815061625.35568-7-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: adc: mcp3911: add support for buffersMarcus Folkesson2-8/+97
Add support for buffers to make the driver fit for more use cases. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220815061625.35568-6-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: adc: mcp3911: use resource-managed version of iio_device_registerMarcus Folkesson1-37/+14
Keep using managed resources as much as possible. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220815061625.35568-5-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: accel: bma400: Fix smatch warning based on use of unintialized value.Jonathan Cameron1-1/+2
Only specific bits in this value are ever used and those are initialized, but that is complex to reason about in a checker. Hence, initialize the value to zero and avoid the complexity. Smatch warning: drivers/iio/accel/bma400_core.c:1287 bma400_tap_event_en() error: uninitialized symbol 'field_value'. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Jagath Jog J <jagathjog1996@gmail.com> Cc: Alexander Potapenko <glider@google.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Jagath Jog J <jagathjog1996@gmail.com> Fixes: 961db2da159d ("iio: accel: bma400: Add support for single and double tap events") Link: https://lore.kernel.org/r/20220917131401.2815486-1-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: light: st_uvis25: Use EXPORT_NS_SIMPLE_DEV_PM_OPS()Jonathan Cameron3-8/+5
Using this new macro removes the need to mark the callbacks __maybe_unused. One slightly complexity in this case is that the export will exist if CONFIG_PM is set, but only be used if CONFIG_PM_SLEEP is also set. This is harmless. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Link: https://lore.kernel.org/r/20220807185618.1038812-7-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: accel: bmi088: Use EXPORT_NS_GPL_RUNTIME_DEV_PM_OPS() and pm_ptr()Jonathan Cameron2-10/+7
These macros allow the compiler to remove unused pm ops functions without needing to mark them maybe unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn> Cc: Mike Looijmans <mike.looijmans@topic.nl> Link: https://lore.kernel.org/r/20220807185618.1038812-6-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: proximity: srf04: Use pm_ptr() to remove unused struct dev_pm_opsJonathan Cameron1-5/+5
If CONFIG_PM is not set, the pm_ptr() will ensure that the struct dev_pm_ops and callbacks are removed without the need for __maybe_unused markings. In this case we can't simply use DEFINE_RUNTIME_DEV_PM_OPS() because that would provide suspend and resume functions without the checks the driver is doing before calling runtime_pm functions (whether the necessary GPIO is provided). It may be possible to clean that up in future by moving the checks into the callbacks. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Andreas Klinger <ak@it-klinger.de> Link: https://lore.kernel.org/r/20220807185618.1038812-5-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: proximity: sx9360: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-4/+4
These new macros avoid the need for marking the callbacks __maybe_unused whilst ensuring both callbacks and structure may be dropped by the compiler if CONFIG_PM_SLEEP is not enabled. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Gwendal Grignou <gwendal@chromium.org> Link: https://lore.kernel.org/r/20220807185618.1038812-4-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: proximity: sx9324: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-4/+4
These new macros avoid the need for marking the callbacks __maybe_unused whilst ensuring both callbacks and structure may be dropped by the compiler if CONFIG_PM_SLEEP is not enabled. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Gwendal Grignou <gwendal@chromium.org> Link: https://lore.kernel.org/r/20220807185618.1038812-3-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: proximity: sx9310: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-4/+4
These new macros avoid the need for marking the callbacks __maybe_unused whilst ensuring both callbacks and structure may be dropped by the compiler if CONFIG_PM_SLEEP is not enabled. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Gwendal Grignou <gwendal@chromium.org> Link: https://lore.kernel.org/r/20220807185618.1038812-2-jic23@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21docs: iio: add documentation for BNO055 driverAndrea Merello2-0/+53
The bno055 driver is rather complex and have some oddities and not-obvious things that worth to document (e.g. calibration files). This patch also contains this [0] fix squashed in. [0] https://lore.kernel.org/lkml/20220704034041.15448-1-bagasdotme@gmail.com/ Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-15-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: imu: add BNO055 I2C driverAndrea Merello3-0/+70
Add an I2C driver for communicating to a BNO055 IMU via I2C bus and enable the BNO055 core driver to work in this scenario. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-14-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: imu: add BNO055 serdev driverAndrea Merello5-0/+693
Add a serdev driver for communicating to a BNO055 IMU via serial bus, and enable the BNO055 core driver to work in this scenario. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Link: https://lore.kernel.org/r/20220907132205.28021-13-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21dt-bindings: iio/imu: Add Bosch BNO055Andrea Merello1-0/+59
Introduce new documentation file for the Bosch BNO055 IMU. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-12-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: document "serialnumber" sysfs attributeAndrea Merello1-0/+7
Add ABI documentation for the new "serialnumber" sysfs attribute. The first user is the bno055 IIO driver. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-11-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: document bno055 private sysfs attributesAndrea Merello1-0/+81
Add ABI documentation for bno055 driver private sysfs attributes. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-10-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: imu: add Bosch Sensortec BNO055 core driverAndrea Merello6-0/+1707
Add the core driver for the BNO055 IMU from Bosch. This IMU can be connected via both serial and I2C busses; separate patches will add support for them. The driver supports "AMG" (Accelerometer, Magnetometer, Gyroscope) mode, that provides raw data from the said internal sensors, and a couple of "fusion" modes (i.e. the IMU also does calculations in order to provide euler angles, quaternions, linear acceleration and gravity measurements). In fusion modes the AMG data is still available (with some calibration refinements done by the IMU), but certain settings such as low pass filters cut-off frequency and sensors' ranges are fixed, while in AMG mode they can be customized; this is why AMG mode can still be interesting. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Link: https://lore.kernel.org/r/20220907132205.28021-9-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: add support for binary attributesAndrea Merello1-1/+3
When a IIO device is registered, the IIO core creates an attribute group on its own, where it puts the channel attributes, and where it copies the attributes in indio_dev->info->attrs. Unfortunately it doesn't take care of binary attributes (i.e. it only consider indio_dev->info->attrs->attrs, and it ignores indio_dev->info->attrs->bin_attrs). Fix this by making the IIO layer take care also of the binary attributes. Note that while it is necessary to copy the non-binary attributes because the IIO layer needs more room to add the channels attribute, it should be enough to assign the bin_attrs pointer to the binary attributes pointed by indio_dev->info->attrs->bin_attrs. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-8-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: event_monitor: add pitch, yaw and roll modifiersAndrea Merello1-0/+3
Following the introduction of pitch, yaw and roll IIO modifiers, update the event_monitor tool accordingly. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-7-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: document pitch, yaw, roll modifiersAndrea Merello1-0/+9
Introduce ABI documentation for new modifiers used for reporting rotations expressed as euler angles (i.e. yaw, pitch, roll). It looks like we have some unit inconsistency along various IIO modifiers: it seems that incli is in deg, angl is in radians and rot isn't documented, but at least the adis16209 driver has rot in deg. Here we use deg (so angl is the only one using radians). Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-6-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: add modifers for pitch, yaw, rollAndrea Merello2-0/+6
Add modifiers for reporting rotations as euler angles (i.e. yaw, pitch and roll). Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-5-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: event_monitor: add linear acceleration modifiersAndrea Merello1-0/+3
Following the introduction of IIO linear acceleration modifiers, update the event_monitor tool accordingly. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-4-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: document linear acceleration modifiersAndrea Merello1-0/+9
Introduce ABI documentation for new IIO modifiers used for reporting "linear acceleration" measures. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-3-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: add modifiers for linear accelerationAndrea Merello2-1/+6
Add IIO_MOD_LINEAR_X, IIO_MOD_LINEAR_Y and IIO_MOD_LINEAR_Z modifiers to te IIO core, which is preparatory for adding the Bosch BNO055 IMU driver. Bosch BNO055 IMU can report raw accelerations (among x, y and z axis) as well as the so called "linear accelerations" (again, among x, y and z axis) which is basically the acceleration after subtracting gravity and for which those new modifiers are for. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-2-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: dps310: Reset chip after timeoutEddie James1-10/+64
The DPS310 chip has been observed to get "stuck" such that pressure and temperature measurements are never indicated as "ready" in the MEAS_CFG register. The only solution is to reset the device and try again. In order to avoid continual failures, use a boolean flag to only try the reset after timeout once if errors persist. Fixes: ba6ec48e76bc ("iio: Add driver for Infineon DPS310") Cc: <stable@vger.kernel.org> Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220915195719.136812-3-eajames@linux.ibm.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: dps310: Refactor startup procedureEddie James1-89/+99
Move the startup procedure into a function, and correct a missing check on the return code for writing the PRS_CFG register. Cc: <stable@vger.kernel.org> Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220915195719.136812-2-eajames@linux.ibm.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21dt-bindings: iio: adi,ad7923: add adi,range-double propertyNuno Sá1-0/+4
Document the new property to enable doubling the analog input range. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220912081223.173584-4-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: adc: ad7923: support extended rangeNuno Sá1-1/+6
By default the driver was always setting the RANGE bit which means that the analog input goes from 0 to VREF. However, we might want to have 0 to 2xVREF. This change adds a new Firmware property to allow for the extended range while keeping the default behavior if nothing is provided. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20220912081223.173584-3-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: adc: ad7923: fix channel readings for some variantsNuno Sá1-1/+3
Some of the supported devices have 4 or 2 LSB trailing bits that should not be taken into account. Hence we need to shift these bits out which fits perfectly on the scan type shift property. This change fixes both raw and buffered reads. Fixes: f2f7a449707e ("iio:adc:ad7923: Add support for the ad7904/ad7914/ad7924") Fixes: 851644a60d20 ("iio: adc: ad7923: Add support for the ad7908/ad7918/ad7928") Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20220912081223.173584-2-nuno.sa@analog.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: adc: stm32-adc: add id registers supportOlivier Moysan2-3/+87
Add support of identification registers to STM32 ADC. By default the ADC hardware instance number is retrieved from the compatible configuration data. Get the available ADC number per ADC block, from hardware configuration register, when this register exists. Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com> Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://lore.kernel.org/r/20220915135452.1712453-1-olivier.moysan@foss.st.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21dt-bindings: iio: imu: st_lsm6dsx: add lsm6dstx device bindingsLorenzo Bianconi1-0/+3
Add device bindings for lsm6dstx IMU sensor. Use lsm6dst as fallback device for lsm6dstx since it implements all the features currently supported by lsm6dstx. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/dadc2acf88b0b73feac9a8980ad9af1658297bc1.1663262890.git.lorenzo@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: imu: st_lsm6dsx: add support to LSM6DSTXLorenzo Bianconi6-3/+20
Add support to STM LSM6DSTX (acc + gyro) Mems sensor. The LSM6DSTX sensor can use LSM6DST as fallback device since it implements all the LSM6DSTX features currently implemented in st_lsm6dsx. Datasheet: https://www.st.com/resource/en/datasheet/lsm6dstx.pdf Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/573a232b0f320b2ec92c56fa24393cfb275183fb.1663262890.git.lorenzo@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21drivers: iio: adc: ltc2497: Rename the LTC2499 iio deviceCiprian Regus4-1/+13
Set the iio device's name based on the chip used for the LTC2499 only. The most common way for IIO clients to interact with a device is to address it based on it's name. By using the dev_name() function, the name will be set based on a i2c_client's kobj name, which has the format i2c_instance-i2c_address (1-0076 for example). This is not ideal, since it makes a requirement for userspace to have knowledge about the hardware connections of the device. The name field is set to NULL for the LTC2497 and LTC2496, so that the old name can kept as it is, since changing it will result in an ABI breakage. Signed-off-by: Ciprian Regus <ciprian.regus@analog.com> Link: https://lore.kernel.org/r/20220916140922.2506248-6-ciprian.regus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21drivers: iio: adc: ltc2497: LTC2499 supportCiprian Regus4-7/+70
The LTC2499 is a 16-channel (eight differential), 24-bit, ADC with Easy Drive technology and a 2-wire, I2C interface. Implement support for the LTC2499 ADC by extending the LTC2497 driver. A new chip_info struct is added to differentiate between chip types and resolutions when reading data from the device. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/2499fe.pdf Signed-off-by: Ciprian Regus <ciprian.regus@analog.com> Link: https://lore.kernel.org/r/20220916140922.2506248-5-ciprian.regus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21Add MAINTAINERS entries for LTC2497 and LTC2496Ciprian Regus1-0/+2
Update the MAINTAINERS file to include the path for the LTC2497 and LTC2496 devicetree bindings documentation. Signed-off-by: Ciprian Regus <ciprian.regus@analog.com> Link: https://lore.kernel.org/r/20220916140922.2506248-4-ciprian.regus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21dt-bindings: iio: adc: Add docs for LTC2499Ciprian Regus1-2/+6
Update the bindings documentation for ltc2497 to include the ltc2499. Signed-off-by: Ciprian Regus <ciprian.regus@analog.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220916140922.2506248-3-ciprian.regus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21MAINTAINERS: Remove duplicate matching entryCiprian Regus1-1/+0
Remove the specific entry for ad5758, since Documentation/devicetree/bindings/iio/*/adi,* already matches the path. Signed-off-by: Ciprian Regus <ciprian.regus@analog.com> Link: https://lore.kernel.org/r/20220916140922.2506248-2-ciprian.regus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: ltc2497: Fix reading conversion resultsUwe Kleine-König1-0/+13
After the result of the previous conversion is read the chip automatically starts a new conversion and doesn't accept new i2c transfers until this conversion is completed which makes the function return failure. So add an early return iff the programming of the new address isn't needed. Note this will not fix the problem in general, but all cases that are currently used. Once this changes we get the failure back, but this can be addressed when the need arises. Fixes: 69548b7c2c4f ("iio: adc: ltc2497: split protocol independent part in a separate module ") Reported-by: Meng Li <Meng.Li@windriver.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by: Denys Zagorui <dzagorui@cisco.com> Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220815091647.1523532-1-dzagorui@cisco.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: bmp280: Add more tunable config parameters for BMP380Angel Iglesias2-27/+238
Allows sampling frequency and IIR filter coefficients configuration using sysfs ABI. The IIR filter coefficient is configurable using the sysfs attribute "filter_low_pass_3db_frequency". Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/876f8a2277f71672488e99aa02aae4239d530f51.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21dt-bindings: iio: pressure: bmp085: Add BMP380 compatible stringAngel Iglesias1-1/+3
Add bosch,bmp380 compatible string for the new family of sensors. This family includes the BMP380, BMP384 and BMP388. The register map in this family changes substantially and introduces new features but core concepts and operations carryover from the previous iterations Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/67224da4ae308bb752fc8fdecc54345cedab6c21.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: bmp280: Add support for BMP380 sensor familyAngel Iglesias6-3/+555
Adds compatibility with the new generation of this sensor, the BMP380. Includes basic sensor initialization to do pressure and temp measurements and allows tuning oversampling settings for each channel. The compensation algorithms are adapted from the device datasheet and the repository https://github.com/BoschSensortec/BMP3-Sensor-API. Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/f1da2a2f1bc5bb083f318335c23b4f3d9bb8e536.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: bmp280: reorder i2c device tables declarationsAngel Iglesias1-5/+5
Change device tables declarations to forward order like in SPI codepath. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/a3969b60e428b9bd29ea1ebc6dd69aa5bbe59da0.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: bmp280: Fix alignment for DMA safetyAngel Iglesias2-59/+76
Adds DMA-safe buffers to driver data struct to store raw data from sensors The multiple buffers used thorough the driver share the same memory allocated as part of the device data instance. The union containing the buffers is aligned to allow safe usage with DMA operations, such as regmap bulk read calls. Updated measurement and calibration reading functions to use the safe DMA buffers. Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/7919793f7f63224d5ce413c66d648029683c17ac.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: bmp280: simplify driver initialization logicAngel Iglesias1-43/+83
Simplified common initialization logic of different sensor types unifying calibration and initial configuration recovery. Default config param values of each sensor type are stored inside chip_info structure and used to initialize sensor data struct instance. The helper functions for read each sensor type calibration are converted to a callback available on the chip_info struct. Separated bme280 specific calibration code from bmp280 function. Dropped the additional chip_id argument in bmp280 code as is not longer required. Now both bmp280/bme280 calibration function use same signature as bmp180. Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/584c90f309e4f24bf2e4aa2b15c8577d288f978d.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: bmp280: Simplify bmp280 calibration data readingAngel Iglesias2-35/+26
On bmp280 and bme280, the temperature and pressure calibration parameters are available on a contiguous memory region. Considering this arrangement, simplified the calibration reading function by using only one buffer to read in batch temperature and pressure registers. Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/96d81282c95006d857f4d836d2ff3ee0740a85a0.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: pressure: bmp280: use FIELD_GET, FIELD_PREP and GENMASKAngel Iglesias2-46/+57
Cleaned and simplified register values construction and extraction converting to use FIELD_PREP and FIELD_GET macros. Replaced hardcoded bit masks with GENMASK macro. Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/3cbe56f29c2a46bc5dc23c5b72e1b43c9207f44d.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-04 09:59:35 +0300