Second set of features and cleanups for IIO in 5.10

We have a couple of changes that apply to large sets of drivers, so
I have grouped those to keep this short(ish)

There are a few late breaking fixes in here that can wait for the
merge window.

dt yaml conversions
-------------------

* adi,ad7768-1
* adi,ad7949
* aspeed,ast2400
* cosmic,10001-adc
* dlg,da9150-gpadc
* fsl,imx25-gcq
* fsl,imx7d-adc
* fsl,vf610
* holt,hi8435
* marvell,berlin2-adc
* motorola,cpcap-adc
* nuvoton,nau7802
* nuvoton,npcm750-adc
* nxp,lpc1850-adc
* nxp,lpc3220
* sprd,sc2720-adc
* st,stmpe-adc
* ti,adc12138
* ti,ads1015
* ti,ads7950
* ti,twl4030-madc

Features
--------

* adxrs290
  - Add triggered buffer support and expose data ready signal as a possible
    trigger. Includes updating bindings.
  - Add debugfs hooks for register access.
* mlx90632
  - Add a clearer user interface to override the measured ambient temperature.
* vl53l0x
  - Add IRQ support including dt bindings.

Cleanups and minor fixes
------------------------
(groups)
Replace mlock with local lock:
  * adf4350
  * exynos-adc
  * fls-imx25-gcq
  * stm32-dac

devm use to simplify probe error handling and remove functions.
  * adis16201
  * adis16203
  * adis16209
  * adis16240
  * adis16136
  * adis16260
  * adis16400
  * adis16460
  * adis16480
  * adis library - drop unused adis_setup_buffer_and_trigger()

of_match_ptr removal and incorrect ACPI binding removal
  of_match_ptr() rarely makes sense in an IIO driver as the space saving
  is trivial and it breaks ACPI PRP0001 based instantiation.
  Mostly this series is about removing examples that get copied into new
  drivers.
  * ad2s1200
  * ad5272
  * ad5446
  * ad5592r
  * ad5593r
  * ad5703
  * ak8974
  * ak8975
  * ams-iaq-core
  * as3935
  * atlas-sensor
  * ds1803
  * hdc100x
  * htu21
  * icp10100
  * lmp91000
  * pulsedlight
  * max30102
  * max5432
  * max5481
  * mcp4018
  * mcp4131
  * mcp4531
  * mcp4725
  * ms5611
  * ms5637
  * si7020
  * sgp30
  * ti-dac082s085
  * ti-dac5571
  * tmp007
  * tsys01
  * vz89x
  * zpa2326

kernel-doc fixes
  * iio-core
  * ad7303
  * ad7947
  * adis16080
  * adis16400
  * iio_dummy_evgen
  * sgp30

Fixes for buffer alignment when passed to iio_push_to_buffers_with_timestamp()
This is a long running effort.  There are a few more drivers to come.
  * inv_mpu6050
  * itg3200
  * si1145
  * st_lsm6dsx
  * ti-adc0832
  * ti-adc12138

(not driver focused)
* MAINTAINERS
  - Consolidate Analog Device IIO entries whilst removing Beniamin Bia.
  - Remove Hartmut Knaack as a listed IIO maintainer as he hasn't been
    active for a long time and people are getting occasional bounces.
* Add __printf() markings to a few functions that were missing them.
* drop some rotted documentation from staging.
* rework buffer sysfs file creation (precursor to multiple buffer support)

(individual drivers)
* ad5592r
  - Fix use of true for IIO_SHARED_BY_TYPE.
  - Tidy up locking and indentation.
* ad9467
  - Improve error message on chip-id missmatch.
  - Use more appropriate error value if chip-id not recognised.
* adis-library
  - Simplify burst mode handling.
* adxrs290
  - Make sure to switch device to standby mode during remove.
* as73211
  - Increase measurement timeout as seems some devices are slower.
* bma180
  - Fix use of true fo IIO_SHARED_BY_TYPE
* exynos_adc
  - Update binding to require second interrut with touch screen.
  - Update binding to not require syscon on S5Pv210
* hmc5843
  - Fix use of true for IIO_SHARED_BY_TYPE
* inv_mpu6050
  - Use regmap_noinc_read() for fifo reading.
* palmas_gpadc
  - Use module_platform_driver() to remove boilerplate.
* meson-saradc
  - style consistency fixes
* rockchip_saradc
  - Allow compile testing with !ARM.
* st_lsm6dsx
  - Changing scaling factor to use IIO_VAL_INT_PLUS_NANO to improve precision.
  - Fix an issue with unchecked return value.
* stm32-adc
  - Fix a missing return introduced in dev_err_probe() patch earlier in
    cycle.
* sx9310
  - Prefer async mode for probe as paticularly slow startup.
* vcnl4000
  - Add missing interrupt property to dt binding.
-----BEGIN PGP SIGNATURE-----
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=wVtA
-----END PGP SIGNATURE-----