Merge tag 'iio-for-5.14a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

1st set of new IIO/counter device support, features and cleanup for 5.14

There are a couple of large cleanup sets in here alongside a number of new
drivers.

Note an immutable branch merged to add a stub for i2c_verify_client()
as needed to avoid a build issue in the fxls8962af driver as a result of a
workaround for a device errata that only applies when i2c interface is used.

Counters
========

New device support
* intel,quadrature encoder peripheral found on Elkhart Lake platforms.
  - New driver.

IIO
===

New device support
* amstaos,tsl2591 ambient light sensor.
  - New driver + bindings
  - Follow up fix to ensure some local variables are suitable for error
    handling.
* fsl,fxls8962af + fsl,fxls8964af accelerometers
  - New driver + bindings
  - Includes an errata work around that cause a build bot failure fixed
    by adding a stub to i2c.
* kionix,kxcjk-1013
  - Add support for KX023-1025 device.  Mostly a different register map
    that needed to be supported.
* murata,sca3300 accelerometer
  - New driver + bindings
* st,lsm9ds0 IMU
  - Rework of st,sensors driver to cleanly support this new glue driver
    that enables the two parts of the LSM9DS0.
* ti,tsc2046 touchscreen controller ADC.
  - New driver. Intent here is to use this with existing IIO consumer
    drivers such as resistive-adc-touch.
  - Follow up fix to avoid an issue with unsigned subtraction in error
    check.
* ti,tmp117 digital temperature sensor
  - New driver + bindings

Features
* adi,ad5755
  - Add missing dt-binding doc
* adi,ad7298
  - Add ACPI ID used on Intel Galileo Gen 1 boards.
  - Add missing dt-binding doc
* adi,ad7476
  - Add missing dt-binding doc
* adi,ad7746
  - Add missing dt-binding doc for this driver that will hopefully move out
    of staging shortly. Update staging driver to use the binding instead of
    platform data.
* adi,adis16201 + adis16209
  - Add missing dt-binding doc
* adi,adis16480
  - Support burst mode for adis16495 and adis16497 parts.
* bosch,bma220
  - Add missing dt-binding doc
* fsl,mma7455
  - Add missing dt-binding doc
* iio-rescale
  - Support handling of processed channels from provider.  Some ADCs
    require (typically non linear) calibration functions to be applied,
    and so provide only IIO_CHAN_INFO_PROCESSED read back. They can be
    used as providers to the iio-rescale driver which needs to handle them
    somewhat differently from IIO_CHAN_INFO_RAW
* sensiron,sps30
  - Support the serial interface.  Note this required significant
    refactoring of existing driver.
* st,st-sensors
  - Add mount matrix support for normal dt-binding whilst continuing to
    support the odd ACPI approach for accelerometers.
* ti,dac082s085 + similar
  - Add missing dt-binding doc
* trivial-devices - add entries for
  - memsic,mx4005, memsic,mx6255 and memsic,mxc6655
  - sensortek,stk8312 and sensortek,stk8ba50

Cleanup / minor fixes
* core
  - Use devm_add_action_or_reset() to replace boilerplate in several
    driver and core IIO devm_* functions.
  - Fix an error path issue introduced by above, that could return an
    error pointer rather than the expected null from dev_iio_device_alloc()
  - Move more IIO internals related fields from struct iio_dev to
    struct iio_dev_opaque.
  - Drop unused final update of in_loc in demux setup.
* Docs
  - Move some docs from driver specific to core dos to avoid replication
    of names which the documentation builder does not allow.
    Note this means adding a few device specific notes to the general docs
    to cover the more unusual uses of the ABI.
  - ABI: Move old buffer/* and scan_elements/* docs to obsolete as now we
    have the bufferX/* variant.  Not we are not getting rid of these
    interfaces, just encouraging new code to use the new interface.
* IIO wide:
  - Tidy up new cases of dev.parent etc being set in drivers as the core
    now does it.
  - Fix more cases of possible miss-aligned buffers when passed to
    iio_push_to_buffers_with_timestamp().  Note we only have one known
    instance of anyone seeing this bug actually happening, so this has been
    a low priority cleanup effort for several cycles.
  - sysfs_emit() used in more drivers.
  - Runtime pm tidy up and use of pm_runtime_resume_and_get()
  - Buffer alignment fixes as iio_push_to_buffers_with_timestamp requires
    that the timestamp when inserted by naturally aligned + consumers can
    assume that all fields are naturally aligned. Part of a long running
    effort, with at least 2 more series to come tackling additional
    variants.
  - Stop specifying "mount-matrix" property name in every lookup of the
    mount matrix from firmware by hard coding it in the core.
* adi,ad7476
  - Handle the variety of different regulators used by the parts supported
    by this driver (came up in dt-binding review)
* adi,ad7746
  - Trivial drop of if (ret) return ret; return 0; pattern
  - Tidy up comments
  - Pull capdac setup out to own function.
* adi,ad7766
  - Trivial drop of if (ret) return ret; return 0; pattern
* adi,adis
  - Avoid returning error codes in interrupt handlers.
  - Handle a failure in spi_write in the trigger handler.
  - Rework to add updating of device page after changing it.
  - Don't push data to IIO buffers when read failed.
  - Add configuration of burst max speed to core avoid handling this in
    each driver.
  - Use the adis_dev_lock() helper in adis16260 and adis16136 drivers.
  - Excessive includes cleanup via include-what-you-use static checker
    after zero day highlighted that these needed updating.
* afe
  - Amend binding to add #io-channel-cells, thus allowing this IIO
    consumer to also be an IIO provider.
* aosong,am2315
  - Drop ACPI id. Unlikely this one is in the wild and it isn't valid
    ACPI naming.
* bosch,bma180
  - Adding missing bandwidth settings (500, 1000 Hz)
* bosch,bme680
  - Drop ACPI id. Unlikely this one is in the wild and it isn't valid
    ACPI naming.
* ep93xx_adc,
  - Drop a redundant error print.
* maxim,max118
  - Convert remainder of probe() to devm_ managed functions.
  - Avoid some repeated jumping back and forth between iio_dev and
    spi structures.
* maxim,max11100
  - Use get_unaligned_be16() instead of open coding.
  - Convert remainder of probe() to devm_ managed functions.
* samsung,exynos_adc
  - Unused error value dropped.
* sensiron,sgp30
  - Drop use of %hx in favor of %x and letting the normal type conversion
    work.
* sensortek,stk8312
  - Add lowercase device id and note uppercase version deprecated.
  - Drop ACPI id. Unlikely this one is in the wild and it isn't valid
    ACPI naming.
* sprx,sc72xx_adc
  - add MODULE_DEVICE_TABLE
* st,lsm6dsx
  - Fix docs of valid ODRs
* st,sensors
  - dt-binding rework.  Two efforts on this crossed in a previous cycle
    so this update cherry picks the best of the two yaml conversions.
  - Don't copy the channel spec array as now ext_info is no longer modified.
* st,stm32-adc
  - tidy up some docs that were marked as kernel-doc but aren't.
* ti,adc081c, ti,adc0832, ti,adc108s102 and ti,adc161s626
  - Convert remainder of probe() functions to devm_ managed functions
    to simplify error handing and remove paths.

* tag 'iio-for-5.14a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (171 commits)
  i2c: core: Add stub for i2c_verify_client() if !CONFIG_I2C
  iio: adis: Cleanout unused headers
  iio: accel: bma180: Add missing 500 Hz / 1000 Hz bandwidth
  counter: Add support for Intel Quadrature Encoder Peripheral
  staging: iio: cdc: ad7746: extract capac setup to own function
  staging: iio: cdc: ad7746: clean up probe return
  staging: iio: cdc: ad7746: remove ordinary comments
  iio: adc: ti-adc161s626: Use devm managed functions for all of probe.
  iio: adc: ti-adc108s102: Use devm managed functions for all of probe()
  iio: adc: ti-adc0832: Use devm managed functions for all of probe()
  iio: adc: ti-adc081c: Use devm managed functions for all of probe()
  iio: adc: max1118: Avoid jumping back and forth between spi and iio structures
  iio: adc: max1118: Use devm_ managed functions for all of probe
  iio: adc: max11100: Use devm_ functions for rest of probe()
  iio: adc: max11100: Use get_unaligned_be16() rather than opencoding.
  iio: chemical: sgp30: Drop use of %hx in format string.
  iio: gyro: st_gyro: Support mount matrix
  iio: magnetometer: st_magn: Support mount matrix
  iio: accel: st_sensors: Stop copying channels
  iio: accel: st_sensors: Support generic mounting matrix
  ...

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