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path: root/drivers/iio/imu/inv_mpu6050
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2021-04-07iio: inv_mpu6050: Fully validate gyro and accel scale writesLars-Peter Clausen
When setting the gyro or accelerometer scale the inv_mpu6050 driver ignores the integer part of the value. As a result e.g. all of 0.13309, 1.13309, 12345.13309, ... are accepted as a valid gyro scale and 0.13309 is the scale that gets set in all those cases. Make sure to check that the integer part of the scale value is 0 and reject it otherwise. Fixes: 09a642b78523 ("Invensense MPU6050 Device Driver.") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20210405114441.24167-1-lars@metafoo.de Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-04-07iio: inv_mpu6050: Make interrupt optionalLars-Peter Clausen
The inv_mpu6050 driver requires an interrupt for buffered capture. But non buffered reading for measurements works just fine without an interrupt connected. Make the interrupt optional to support this case. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20210325131046.13383-2-lars@metafoo.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-04-07iio: inv_mpu6050: Remove superfluous indio_dev->modes assignmentLars-Peter Clausen
The inv_mpu6050 driver manually assigns the indio_dev->modes property. But this is not necessary since it will be setup in iio_trigger_buffer_setup(). Remove the manual assignment. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20210325131046.13383-1-lars@metafoo.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-29iio: imu: inv_mpu6050: Use as standalone triggerLinus Walleij
It may happen that the MPU6050 is the only hardware trigger available on your system such as this: > lsiio Device 003: hscdtd008a Device 001: mpu6050 Device 002: gp2ap002 Device 000: ab8500-gpadc Trigger 000: mpu6050-dev1 And when you want to use it to read periodically from your magnetometer like this: > iio_generic_buffer -a -c 100 -n hscdtd008a -t mpu6050-dev1 Then the following happens: [ 209.951334] Internal error: Oops: 5 [#1] SMP ARM (...) [ 209.981969] Hardware name: ST-Ericsson Ux5x0 platform (Device Tree Support) [ 209.988925] PC is at inv_scan_query_mpu6050+0x8/0xb8 [ 209.993914] LR is at inv_mpu6050_set_enable+0x40/0x194 This is because since we are not using any channels from the same device, the indio_dev->active_scan_mask is NULL. Just checking for that and bailing out is however not enough: we have to enable some kind of FIFO for the readout to work. So enable the temperature as a dummy FIFO and all works fine. Not suitable for backporting to stable. It is an odd corner case and does not represent a regression. Fixes: 09a642b78523 ("Invensense MPU6050 Device Driver.") Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20210322132408.1003443-1-linus.walleij@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-09iio: imu: inv_mpu6050: Add support for MPU-6880Stephan Gerhold
MPU-6880 seems to be very similar to MPU-6500 and it works fine with some minor additions for the mpu6050 driver. Add the necessary defines for it and make it use the same registers as MPU-6500 but with a FIFO size of 4096. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20201202104656.5119-2-stephan@gerhold.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-21iio:imu:inv_mpu6050: Use regmap_noinc_read for fifo reads.Jonathan Cameron
We should not be assuming that we are reading a sequence of registers as here we are doing a read of a lot of data from a single register address. Not marked for stable as by coincidence it being wrong doesn't make any difference. Suggested-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20200722155103.979802-19-jic23@kernel.org
2020-09-21iio:imu:inv_mpu6050 Fix dma and ts alignment and data leak issues.Jonathan Cameron
This case is a bit different to the rest of the series. The driver was doing a regmap_bulk_read into a buffer that wasn't dma safe as it was on the stack with no guarantee of it being in a cacheline on it's own. Fixing that also dealt with the data leak and alignment issues that Lars-Peter pointed out. Also removed some unaligned handling as we are now aligned. Fixes tag is for the dma safe buffer issue. Potentially we would need to backport timestamp alignment futher but that is a totally different patch. Fixes: fd64df16f40e ("iio: imu: inv_mpu6050: Add SPI support for MPU6000") Reported-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Cc: <Stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200722155103.979802-18-jic23@kernel.org
2020-09-03iio: imu: inv_mpu6050: Simplify with dev_err_probe()Krzysztof Kozlowski
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and also it prints the error value. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20200829064726.26268-13-krzk@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20iio: imu: inv_mpu6050: inv_mpu_ring: Demote seemingly unintentional ↵Lee Jones
kerneldoc header This is the only use of kerneldoc in the source file and no descriptions are provided. Fixes the following W=1 kernel build warning(s): drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c:118: warning: Function parameter or member 'irq' not described in 'inv_mpu6050_read_fifo' drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c:118: warning: Function parameter or member 'p' not described in 'inv_mpu6050_read_fifo' Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20iio: imu: inv_mpu6050: inv_mpu_core: Demote obvious misuse of kerneldoc to ↵Lee Jones
standard comment blocks No attempt has been made to document any of the demoted functions here. Fixes the following W=1 kernel build warning(s): drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:444: warning: Function parameter or member 'st' not described in 'inv_mpu6050_set_lpf_regs' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:444: warning: Function parameter or member 'val' not described in 'inv_mpu6050_set_lpf_regs' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:480: warning: Function parameter or member 'indio_dev' not described in 'inv_mpu6050_init_config' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:862: warning: Function parameter or member 'st' not described in 'inv_mpu6050_set_lpf' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:862: warning: Function parameter or member 'rate' not described in 'inv_mpu6050_set_lpf' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:893: warning: Function parameter or member 'dev' not described in 'inv_mpu6050_fifo_rate_store' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:893: warning: Function parameter or member 'attr' not described in 'inv_mpu6050_fifo_rate_store' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:893: warning: Function parameter or member 'buf' not described in 'inv_mpu6050_fifo_rate_store' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:893: warning: Function parameter or member 'count' not described in 'inv_mpu6050_fifo_rate_store' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:954: warning: Function parameter or member 'dev' not described in 'inv_fifo_rate_show' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:954: warning: Function parameter or member 'attr' not described in 'inv_fifo_rate_show' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:954: warning: Function parameter or member 'buf' not described in 'inv_fifo_rate_show' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:975: warning: Function parameter or member 'dev' not described in 'inv_attr_show' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:975: warning: Function parameter or member 'attr' not described in 'inv_attr_show' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:975: warning: Function parameter or member 'buf' not described in 'inv_attr_show' drivers/iio/imu/inv_mpu6050/inv_mpu_core.c:1282: warning: Function parameter or member 'st' not described in 'inv_check_and_setup_chip' Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: remove left-over parent assignmentsAlexandru Ardelean
These were found by doing some shell magic: ------------ for file in $(git grep -w devm_iio_device_alloc | cut -d: -f1 | sort | uniq) ; do if grep 'parent =' $file | grep -v trig | grep -vq devm_; then echo "$file -> $(grep "parent =" $file)" fi done ----------- The output is bearable [after the semantic patch is applied]. There is a mix of trigger assignments with some iio device parent assignments that are removed via this patch. JC: A few more added via inspection of all parent = statements in drivers/iio. Some of these may just have crossed with this series, others were less obvious to scripting due to some cross file / module boundary calls. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: imu: inv_mpu6050: Drop double check for ACPI companion deviceAndy Shevchenko
acpi_dev_get_resources() does perform the NULL pointer check against ACPI companion device which is given as function parameter. Thus, there is no need to duplicate this check in the caller. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-27Merge 5.7-rc3 into staging-nextGreg Kroah-Hartman
We need the staging fixes in here too, and this resolves a merge issue with the vt6656 driver. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-19iio: imu: inv_mpu6050: fix suspend/resume with runtime powerJean-Baptiste Maneyrol
Suspend/resume were not working correctly with pm runtime. Now suspend check if the chip is already suspended, and resume put runtime pm in the correct state. Issues seen prior to this were: When entering suspend, there was an error in logs because we were disabling vddio regulator although it was already disabled. And when resuming, the chip was pull back to full power but the pm_runtime state was not updated. So it was believing it was still suspended. Fixes: 4599cac84614 ("iio: imu: inv_mpu6050: use runtime pm with autosuspend") Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio:imu:mpu6050: Tidy up parameters to regmap_bulk functions.Jonathan Cameron
A mixture of: * Casts to u8 * for the val parameter which is void * and so needs no cast. * Explicit sizes when we can use sizeof on the destination / source variable. Not broken in anyway, I'm just trying to tidy up the is in the subsystem to avoid it getting cut and paste into new drivers. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2020-04-19iio: imu: inv_mpu6050: add debugfs register r/w interfaceRohit Sarkar
The debugfs interface provides direct access to read and write device registers if debugfs is enabled. Signed-off-by: Rohit Sarkar <rohitsarkar5398@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: imu: inv_mpu6050: convert to use i2c_new_client_device()Wolfram Sang
Move away from the deprecated API and return the shiny new ERRPTR where useful. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: imu: inv_mpu6050_spi: Use vsprintf extension %pe for symbolic error nameNishant Malpani
Utilize %pe format specifier from vsprintf while printing error logs with dev_err(). Discards the use of unnecessary explicit casting and prints symbolic error name which might prove to be convenient during debugging. Signed-off-by: Nishant Malpani <nish.malpani25@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: imu: inv_mpu6050_i2c: Use vsprintf extension %pe for symbolic error nameNishant Malpani
Utilize %pe format specifier from vsprintf while printing error logs with dev_err(). Discards the use of unnecessary explicit casting and prints symbolic error name which might prove to be convenient during debugging. Signed-off-by: Nishant Malpani <nish.malpani25@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: temperature only work with accel/gyroJean-Baptiste Maneyrol
Temperature sensor works correctly only when accel and/or gyro is turned on. Prevent polling value if they are not running. Anyway it doesn't make sense to use it without sensor engines on. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: use runtime pm with autosuspendJean-Baptiste Maneyrol
Use runtime power management for handling chip power and sensor engines on/off. Simplifies things a lot since pm runtime already has reference counter. Usage of autosuspend reduces the number of power on/off. This makes polling interface now usable to get data at low frequency. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: dynamic sampling rate changeJean-Baptiste Maneyrol
Sampling rate can be changed while the chip is running. It can be useful thus do not prevent it. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: factorize fifo enable/disableJean-Baptiste Maneyrol
Rework fifo enable/disable in a separate function. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: fix data polling interfaceJean-Baptiste Maneyrol
When reading data with the polling interface, we need to wait at 1 sampling period to have a sample. For gyroscope and magnetometer, we need to wait for 2 periods before having a correct sample. Not suitable for stable or backporting. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: rewrite power and engine managementJean-Baptiste Maneyrol
Rewrite clock management to use automatic clock switching present since MPU6500. Sensors engine management can now turn on or off a batch of sensors which simplifies usage a lot. Temperature sensor is now turned on/off depending on usage. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: reduce sleep time when turning regulators onJean-Baptiste Maneyrol
Turning vdd regulator on requires a consequent sleep for the chip to power on correctly. Turning vddio regulator is much faster. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: add all signal path resets at initJean-Baptiste Maneyrol
Old chips using spi require for a full reset to manually reset all signal path. This does not harm when using i2c so do it inconditionally. Exclude i2c only chips. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: early init of chip_config for use at setupJean-Baptiste Maneyrol
Init chip_config early and use its values for initial setup. More coherent, prevent possible mistakes. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: simplify polling magnetometerJean-Baptiste Maneyrol
Do not change the sampling rate value. Let userspace decide what is the sampling rate to use. Read only the requested axis. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: set power on/off only once during all initJean-Baptiste Maneyrol
This way there is no need anymore to export the power function to i2c and spi modules. Bus setup is done inside init when power is on and the result is now checked. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: delete useless checkJean-Baptiste Maneyrol
If we are here it means we have fifo enabled for 1 sensor at least. And interrupt is always required for using trigger. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-08iio: imu: inv_mpu6050: enable i2c aux mux bypass only onceJean-Baptiste Maneyrol
i2c auxiliary mux is done by analog switches. You do not need to set them for every i2c transfer. Just set i2c bypass bit at init and do noting in i2c de/select. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: imu: inv_mpu6050: update LPF bandwidth settingsJean-Baptiste Maneyrol
As every chip has some little variant in LPF bandwidth values, use common values that are working for all chips. Simplify the LPF setting function. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: imu: inv_mpu6050: add support of ICM20690Jean-Baptiste Maneyrol
Same generation as ICM20602 but different registers. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: imu: inv_mpu6050: add support of IAM20680Jean-Baptiste Maneyrol
Automotive certified IMU, similar to ICM20608. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: imu: inv_mpu6050: add support of ICM20609 & ICM20689Jean-Baptiste Maneyrol
They are similar to ICM20608 chip. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: imu: inv_mpu6050: cleanup of/acpi supportJean-Baptiste Maneyrol
Use device_get_match_data for using of and acpi tables. In spi support add missing mpu6515 and of match table. Reorganize Kconfig to display chips grouped by generations. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-18iio: imu/mpu6050: support dual-edge IRQMichał Mirosław
Make mpu6050 usable on platforms which provide only any-edge interrupts. One example of this kind of platform is AT91SAM9G45 Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-18iio: imu: inv_mpu6050: add fifo temperature data supportJean-Baptiste Maneyrol
Add support of temperature data in fifo for all chips. Enable unification of scan elements for icm20602. Add macros for generating scan elements. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-10Merge tag 'iio-for-5.6a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new device support, features and cleanups for IIO in the 5.6 cycle New device support * ad7091r5 ADC - New driver with follow up patch adding scale and vref support. - DT bindings * ad7923 - Support for ad7908, ad7918 and ad7928 added to driver. * bma180 - Support the BMA254 accelerometer. Required fairly substantial rework to allow for small differences between this an existing parts. * bma400 accelerometer - New driver with follow up patch for regulator support. - DT bindings. * asc dlhl60d - New driver support this range of pressure and temperature sensors. - DT bindings. * ltc2496 ADC - New driver to support this ADC. - Split the existing LTC2497 driver generic component out and reuse. - DT bindings. * parallax ping - New driver supporting ultrasonic and laser tof distance sensors. - Bindings for these sensors. New features * core - New char type for read_raw returns, used for thermocouple types. - Rename read_first_n callback to read. The reasons behind the original naming are lost to the mists of time. * ad799x - Allow pm_ops to disable device completely allowing regulator power down. * bma180 - Enable basic regulator support. * dmaengine buffer - Report platform data alignment requirements via new ABI. * max31856 - Add option to set mains filter rejection frequency and document new in_temp_filter_notch_center_frequency ABI. - Add support for configuring HW averaging (oversampling ratio) - Add runtime configuration of thermocouple type and document new ABI. * maxim-thermocouple - Add read only access to thermocouple type using new ABI, includes adding more specific compatibles to reflect which variant of the chip is being used. * mpu6050 - Provide option to support the PMU9150 in package magnetometer directly rather than via auxiliary bus. * stm32_adc - Add overrun interrupt checks to detect if this happens. * st_lsm6dsx - Enable the sensor-hub support for lsm6dsm. Includes various reworks to allow this. Cleanups and minor fixes * Subsystem wide - Tidy up indentation in Kconfig and fix alphabetical order of AD7091R5. - Drop linux/gpio.h and linux/of_gpio.h from drivers that don't use them. * ad7266 - Convert to GPIO descriptors. * ad7303 - Avoid a dance with checking if the regulator is supplied by just using the optional request interface. * ad7887 - Simplify channel specification assignment to enable adding more devices. * ad7923 - Drop some unused and largely pointless defines of BOB_N==N variety. - Tidy up checkpatch warnings. - Add missing of_device_id table. * adf4350 - Convert to GPIO descriptors. * ak8975 - Convert to GPIO descriptors. * ADIS library and drivers - Expand scope of txrx_lock to cover all state and rename as state_lock - Add unlocked read / write to allow grouping of consecutive calls under single lock / unlock. - Add unlocked check_status, reset to allow grouping under single lock / unlock. - Remove remaining uses of core mlock for local state protection. mlock should never be used directly as it protects tightly defined core IIO device management state. * adis16240 - Enforce only supported SPI mode on driver load + add DT binding doc. * atlas-ph-sensor - Rename to atlas-sensor given it now covers things beyond ph sensors. * bma180 - Use local dev variable to tidy up code. - Use c99 style explicity .member assignment to make driver more readable. * bmp280 - Drop ACPI support. No evidence this was used and appropriate ID is not registered. - Allow ACPI to bind device via PRP0001 * dmaengine buffer - Use dma_request_chan instead of dma_request_slave_channel_reason as that ABI is going away. - Add module info to avoid tainting the kernel. * hts221 - Avoid magic number defines when only used to fill structure elements that are self describing. * lm3533 - Drop a stray semicolon. * max9611 - Cleanup enum handling to be more resilient to future changes. * mpu6050 - Delete MPU9150 from supported SPI devices as doesn't provide SPI. - Select I2C_MUX again after kbuild issue fixed elsewhere. * stm32-timer - Drop an unnecessary register update. * ssp_sensors - Convert to GPIO descriptors. * st_sensors - drop !CONFIG_ACPI defines as ACPI_PTR() will stop them being used anyway. - Make default platform data structures __maybe_unsued. - Fill in some missing kernel-doc function parameters. * st_lsm6dsx - white space fixes. - Mark some constants that aren't always used as __maybe_unused. - Drop of ID table guards as they just pervent use under ACPI. - Switch to device properties to allow ACPI usage. * st_uvis25 - Drop acpi.h include as no ACPI APIs used. * ti-ads1015 - Drop legacy platform data as no one seems to be using it. - Use the device property API instead of OF specific. * ti-ads7950 - typo fix in error message. * tag 'iio-for-5.6a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (99 commits) iio: accel: bma180: BMA254 support iio: pressure: bmp280: Allow device to be enumerated from ACPI iio: pressure: bmp280: Drop ACPI support dt-bindings: iio: adc: convert sd modulator to json-schema iio: buffer: rename 'read_first_n' callback to 'read' iio: buffer-dmaengine: Report buffer length requirements bindings: iio: pressure: Add documentation for dlh driver dt-bindings: Add asc vendor iio: pressure: Add driver for DLH pressure sensors iio: buffer-dmaengine: Add module information iio: accel: bma180: Use explicit member assignment iio: accel: bma180: Basic regulator support iio: accel: bma180: Add dev helper variable iio: imu: st_lsm6dsx: enable sensor-hub support for lsm6dsm iio: imu: st_lsm6dsx: rename st_lsm6dsx_shub_read_reg in st_lsm6dsx_shub_read_output iio: imu: st_lsm6dsx: check if shub_output reg is located in primary page iio: imu: st_lsm6dsx: check if pull_up is located in primary page iio: imu: st_lsm6dsx: check if master_enable is located in primary page iio: imu: st_lsm6dsx: export max num of slave devices in st_lsm6dsx_shub_settings iio: light: remove unneeded semicolon ...
2019-12-15iio: imu: inv_mpu6050: Select I2C_MUX againLinus Walleij
commit f7072198f217 ("iio: imu: Fix inv_mpu6050 dependencies") undid the explicit selection of I2C_MUX previously done by the driver, because I2C_MUX implicitly depended on HAS_IOMEM. However commit 93d710a65ef0 ("i2c: mux: fix up dependencies") cleared up the situation properly and drivers that need to select I2C_MUX can now do so again. It makes a lot of sense for a driver to select the driver infrastructure it needs so restore the natural order of things. Cc: Richard Weinberger <richard@nod.at> Cc: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-08iio: imu: inv_mpu6050: fix temperature reporting using bad unitJean-Baptiste Maneyrol
Temperature should be reported in milli-degrees, not degrees. Fix scale and offset values to use the correct unit. This is a fix for an issue that has been present for a long time. The fixes tag reflects the point at which the code last changed in a fashion that would make this fix patch no longer apply. Backports will be necessary to fix those elements that predate that patch. Fixes: 1615fe41a195 ("iio: imu: mpu6050: Fix FIFO layout for ICM20602") Cc: stable@vger.kernel.org Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-16iio: imu: inv_mpu6050: add support of MPU9150 magnetometerJean-Baptiste Maneyrol
Add support for driving MPU9150 magnetometer (AK8975) from mpu. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-16iio: imu: inv_mpu6050: delete not existing MPU9150 spi supportJean-Baptiste Maneyrol
MPU9150 is i2c only. Update Kconfig to delete in description chips that are i2c or spi only. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-13Merge tag 'iio-for-5.5c' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Third set of IIO new device support cleanups and fixes for the 5.5 cycle. New device support * ad5446 - Support the ad5600 DAC (id only needed). * ad7292 ADC DAC etc - New driver plus dt-bindings. * veml6030 ambient light sensor - New driver plus dt-bindings and sysfs docs. Features * mpu6050 - Explicit VDD control. * stm32-adc - Allow limiting of max clock frequency from devicetree to ensure it's suitable for external circuitry. yaml binding conversions * ltc1660 * mcp3911 Fixes * adis16480 - Fix wrong scale factors. - Fix debugfs reg access by providing the callback. * cros_ec_baro - Fixing missing mask entry to make available sample frequencies visible in sysfs. * st_lsm6dsx - Explicitly handle different ODR table sizes. - Handle restrictions between slave ODR and accel ODR when both are enabled. - Allow ODR to be expressed more accurately by using miliHz. * tools - Fix an issue with parallel builds. Cleanups and warning fixes * adis16136, adis16400, adis16460, adis-lib - Change some checks on return values to be for 0 rather than strictly negative. Avoids some fiddly issues with the compiler concluding some variables are initialized due to a mixture of error checks. - Assign values only on success of 'read' operations - avoiding any chance the compiler will falsly suggest they might be used uninitialized. - Whitespace and simlar cleanups. * aspeed adc - devm_platfom_ioremap_resource to reduce boilerplate. * bcm-iproc-adc - Stray semicolon removal. * cc10001 - devm_platfom_ioremap_resource to reduce boilerplate. * dln2-adc - Reorganise the buffered mode setup and tear down. Part of moving towards being able to refactor this area of the IIO core. * hdc100x - Reorganise the buffered mode setup and tear down. * ingenic-adc - devm_platfom_ioremap_resource to reduce boilerplate. * lpc18xx-adc - devm_platfom_ioremap_resource to reduce boilerplate. * lpc18xx-dac - devm_platfom_ioremap_resource to reduce boilerplate. * mt6577 - devm_platfom_ioremap_resource to reduce boilerplate. * npcm - devm_platfom_ioremap_resource to reduce boilerplate. * rcar-gyroadc - devm_platfom_ioremap_resource to reduce boilerplate. * spear-adc - devm_platfom_ioremap_resource to reduce boilerplate. * vf610-adc - devm_platfom_ioremap_resource to reduce boilerplate. * vf610-dac - devm_platfom_ioremap_resource to reduce boilerplate. * tag 'iio-for-5.5c' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (43 commits) iio: adis16480: Add debugfs_reg_access entry iio: adis16480: Fix scales factors tools: iio: Correctly add make dependency for iio_utils iio: adc: Add driver support for AD7292 dt-bindings: iio: adc: Add dt-schema for AD7292 dt-bindings: iio: adc: Migrate MCP3911 documentation to yaml iio: imu: mpu6050: Add support for vdd-supply regulator dt-bindings: iio: imu: mpu6050: add vdd-supply iio: cros_ec_baro: set info_mask_shared_by_all_available field iio: dac: ad5446: Add support for new AD5600 DAC dt-bindings: iio: dac: Migrate LTC1660 documentation to yaml iio: documentation: light: Add veml6030 sysfs documentation dt-bindings: iio: light: add veml6030 ALS bindings iio: light: add driver for veml6030 ambient light sensor iio: imu: st_lsm6dsx: express odr in mHZ iio: imu: st_lsm6dsx: fix ODR check in st_lsm6dsx_write_raw iio: imu: st_lsm6dsx: explicitly define odr table size iio: adc: stm32: allow to tune analog clock dt-bindings: iio: stm32-adc: add max clock rate property iio: dac: vf610: Use devm_platform_ioremap_resource ...
2019-11-11Merge 5.4-rc7 into staging-nextGreg Kroah-Hartman
We want the staging fixes in here, and it resolves some merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-10iio: imu: mpu6050: Add support for vdd-supply regulatorStephan Gerhold
MPU6050 has two power supply pins: VDD and VLOGIC, but the mpu6050 driver only supports enabling one of them at the moment. In some cases, they may need to be enabled separately. Add an additional "vdd-supply" that stays enabled for as long as the driver is loaded. We cannot turn off the VDD regulator during suspend as this would cause register settings (FSR, sampling rate, ...) to be lost. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-22iio: imu: inv_mpu6050: fix no data on MPU6050Jean-Baptiste Maneyrol
Some chips have a fifo overflow bit issue where the bit is always set. The result is that every data is dropped. Change fifo overflow management by checking fifo count against a maximum value. Add fifo size in chip hardware set of values. Fixes: f5057e7b2dba ("iio: imu: inv_mpu6050: better fifo overflow handling") Cc: stable@vger.kernel.org Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-05iio: imu: inv_mpu6050: add fifo support for magnetometer dataJean-Baptiste Maneyrol
Put read magnetometer data by mpu inside the fifo. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-05iio: imu: inv_mpu6050: add MPU925x magnetometer supportJean-Baptiste Maneyrol
Add support of driving MPU9250 magnetometer connected on i2c auxiliary bus using the MPU i2c master. Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>