Jonathan writes:

1st set of IIO fixes for the 5.19 cycle.

Most of these have been in next for a long time. Unfortunately there
was one stray patch in the branch (wasn't a fix), so I've just rebased
to remove that.

* testing
  - Fix a missing MODULE_LICENSE() warning by restricting possible build
    configs.
* Various drivers
  - Fix ordering of iio_get_trigger() being called before
    iio_trigger_register()
* adi,admv1014
  - Fix dubious x & !y warning.
* adi,axi-adc
  - Fix missing of_node_put() in error and normal paths.
* aspeed,adc
  - Add missing of_node_put()
* fsl,mma8452
  - Fix broken probing from device tree.
  - Drop check on return value of i2c write to device to cause reset as
    ACK will be missing (device reset before sending it).
* fsl,vf610
  - Fix documentation of in_conversion_mode ABI.
* iio-trig-sysfs
  - Ensure irq work has finished before freeing the trigger.
* invensense,mpu3050
 - Disable regulators in error path.
* invensense,icm42600
  - Fix collision of enum value of 0 with error path where 0 is no match.
* renesas,rzg2l_Adc
  - Add missing fwnode_handle_put() in error path.
* rescale
  - Fix a boolean logic bug for detection of raw + scale affecting an
    obscure corner case.
* semtech,sx9324
  - Check return value of read of pin_defs
* st,stm32-adc:
  - Fix interaction across ADC instances for some supported devices.
  - Drop false spurious IRQ messages.
  - Fix calibration value handling.  If we can't calibrate don't expose the
    vref_int channel.
  - Fix maximum clock rate for stm32pm15x
* ti,ads131e08
  - Add missing fwnode_handle_put() in error paths.
* xilinx,ams
  - Fix variable checked for error from platform_get_irq()
* x-powers,axp288
  - Overide TS_PIN bias current for boards where it is not correctly
    initialized.
* yamaha,yas530
  - Fix inverted check on calibration data being all zeros.

* tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (26 commits)
  iio:proximity:sx9324: Check ret value of device_property_read_u32_array()
  iio: accel: mma8452: ignore the return value of reset operation
  iio: adc: stm32: fix maximum clock rate for stm32mp15x
  iio: adc: stm32: fix vrefint wrong calibration value handling
  iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
  iio: adc: vf610: fix conversion mode sysfs node name
  iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client
  iio: test: fix missing MODULE_LICENSE for IIO_RESCALE=m
  iio:humidity:hts221: rearrange iio trigger get and register
  iio:chemical:ccs811: rearrange iio trigger get and register
  iio:accel:mxc4005: rearrange iio trigger get and register
  iio:accel:kxcjk-1013: rearrange iio trigger get and register
  iio:accel:bma180: rearrange iio trigger get and register
  iio: afe: rescale: Fix boolean logic bug
  iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data
  iio: adc: stm32: Fix IRQs on STM32F4 by removing custom spurious IRQs message
  iio: adc: stm32: Fix ADCs iteration in irq handler
  iio: adc: ti-ads131e08: add missing fwnode_handle_put() in ads131e08_alloc_channels()
  iio: adc: rzg2l_adc: add missing fwnode_handle_put() in rzg2l_adc_parse_properties()
  iio: trigger: sysfs: fix use-after-free on remove
  ...

Ensure that the irq_work has completed before the trigger is freed.

 ==================================================================
 BUG: KASAN: use-after-free in irq_work_run_list
 Read of size 8 at addr 0000000064702248 by task python3/25

 Call Trace:
  irq_work_run_list
  irq_work_tick
  update_process_times
  tick_sched_handle
  tick_sched_timer
  __hrtimer_run_queues
  hrtimer_interrupt

 Allocated by task 25:
  kmem_cache_alloc_trace
  iio_sysfs_trig_add
  dev_attr_store
  sysfs_kf_write
  kernfs_fop_write_iter
  new_sync_write
  vfs_write
  ksys_write
  sys_write

 Freed by task 25:
  kfree
  iio_sysfs_trig_remove
  dev_attr_store
  sysfs_kf_write
  kernfs_fop_write_iter
  new_sync_write
  vfs_write
  ksys_write
  sys_write

 ==================================================================

Fixes: f38bc926d022 ("staging:iio:sysfs-trigger: Use irq_work to properly active trigger")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20220519091925.1053897-1-vincent.whitchurch@axis.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.

To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable instead of a
found boolean [1].

This removes the need to use a found variable and simply checking if
the variable was set, can determine if the break/goto was hit.

Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/ [1]
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220331230632.957634-3-jakobkoschel@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The combinations of either
* pm_sleep_ptr() and DEFINE_SIMPLE_DEV_PM_OPS()
* pm_ptr() and RUNTIME_PM_OPS()/SYSTEM_SLEEP_PM_OPS
Make sure the functions are always visible to the compiler and removed by
it rather than requring #ifdef magic.

This removes the need to mark the functions as __maybe_unused and saves
additional space with some build options as the dev_pm_ops structure
itself can be dropped automatically if CONFIG_PM is not enabled.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Olivier Moysan <olivier.moysan@st.com>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220130193147.279148-51-jic23@kernel.org

Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220202204112.57095-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Jonathan writes:

1st set of IIO new device support, features and cleanup for 5.17

Includes some fixes that were either late breaking, low priority or
complex enough to not be good to rush in late in the cycle.

Tree rebased today to fix up some trivial issues + pull in a fix that
was previously on the fixes-togreg branch. Vast majority have been
in linux-next for some time now.

New device support
* adi,ad7293
  - New driver and bindings for this Power Amplifier drain current
    controller.  A complex device with various related monitoring functions.
* adi,ad75513R
  - New driver and bindings for this combined ADC and DAC device.
  - A few follow up fixes.
* adi,admv8818
  - New driver (and type) for this 2-18GHz filter device. Includes
    bindings and ABI documentation to allow clk_notifier based auto
    adjustment of the filters in appropriate applications.
* liteon,ltr501
  - Support for the ltr303.  ID and chip specific info table.
* xilinx,ams
  - New generic firmware function fwnode_iomap() as used in this driver.
  - New driver and bindings for this ADC and on-chip sensors as found
    in various Xilinx devices.

Core
* Introduced IIO_VAL_INT_64 which uses val and val2 in IIO callbacks to
  form a 64 bit integer when higher precision needed.
* Allow IIO_ENUM_AVAILABLE to be used with different shared values.
* Fix a long term issue with scheduling whilst atomic when iio_trig_poll()
  is called but no trigger consumers are actually enabled and hence the
  trigger may be reenabled from the interrupt handler.  Seen in the wild
  on the tsc2046.
* Mark iio_device_type const.
* buffer: Use a separate index variable to simplify code.
* buffer-dma: Clear out unused struct iio_buffer_block
* buffer-dmaengine: Switch to cheaper round_down() as power of 2 values.

Tests/tools
* format_value
  - Check against NULL returns from allocations in tests.
  - Add IIO_VAL_INT_64 test case.
* event_monitor
  - Flush the output after event to given more consistent latency
    when tool output piped to other programs.

Driver Features
* axp20x
  - Add support for NTC thermistor channel and document TS pin binding.
* arm,scmi
  - Add reading of raw channel values (using IIO_VAL_INT_64)
* liteon,ltr501
  - Add proximity-near-level support and dt-binding.

Tree wide cleanup
* Remove no-op trigger ops from multiple drivers.
* Stop using dev_get_drvdata() on the iio_dev->dev in various drivers
  and then stop assigning it to allow this to be used for other purposes.
  We can always get to the indio_dev using dev_to_iio_dev() which is
  a container_of() based approach. Also cleanup up some related unnecessary
  convoluted cases.
  - atmel,at91-sam5d2
  - nxp,imx7d
  - meas,ms5611
  - st,st_sensors
* Where available (or easy to introduce) use the scan_type.* values
  in place of a second copy for read_raw and similar paths.
  - adi,ad7266
  - bosch,bma220
  - fsl,mac3110
  - fsl,mma7455
  - fsl,mpl3115
  - kionix,kcjk-1013
  - sensortek,stk8ba50
  - sensortek,stk8312
  - ti,adc12138
  - ti,ads1015
  - vti,sca3000
  - xilinx,xadc-core
* Switch drives over to generic firmware properties including appropriate
  header changes to avoid including of.h
  - Various DACs had false CONFIG_OF dependencies.
  - dpot-dac
  - envelope-detector
  - adi,ad5755
  - adi,ad5758
  - capella,cm3605
  - maxim,max9611
  - microchip,mcp41010
  - microchip,mcp3911
  - ti,adc12138
* Trivial clang warning fixes for W=1 warnings.

Driver specific cleanup and minor fixes
* adi,ad7606
  - Comment fixes.
* ams,ad3935
  - Drop pointless cast to the same type.
* atmel,at91-sama5d2
  - Fix wrong cast of iio_dev->dev to platform_device that happened to
    be harmless.
* fsl,mma7660
  - Stop i2c remove() function returning an error code. Part of a rework
    to eventually stop returning anything from these.
* fsl,mma8452
  - Use correct type for local irqreturn_t.
* nxp,imx8mq
  - Maintainer email address update.
* nxp,lpc18xx_adc
  - Ensure clk_prepare_enable() called before clk_get_rate().
  - Switch of.h for mod_devicetable.h to reflect no of specific functions,
    just the id table.
* renesas,rzg2l
  - Drop a dev_err() that just duplicates error printed in platform_get_irq()
* sgx,vz89x
  - Drop pointless cast.
* st,lsm6dsx
  - Make it possible to disable the sensorhub from DT to avoid a corner
    case where the address of a slave device many be accidentally modified.
* st,stm32-adc
  - Stop leaking an of_node in an error path.
* st,stmp2
   - Avoid wrong sized type for bit field which could result in
     over-reading (harmless). Precursor to enabling -Warray-bounds.
* ti,adc081c
  - Put back some ACPI support for non standards compliant ADC081C
    ID because it is known to be in the wild on some Aaeon boards.
* ti,ads8688
  - Cleanup redundant local ret variable assignment.
* ti,ina2xx-adc
  - Use helper macro kthread_run() to replace some boilerplate.
  - Avoid double reference counting.
  - Drop pointless cast.
* xilinx,xadc
  - Make the IRQ optional as not always wired to the host system.

* tag 'iio-for-5.17a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (103 commits)
  iio: adc: ti-adc081c: Partial revert of removal of ACPI IDs
  iio:addac:ad74413r: Fix uninitialized ret in a path that won't be hit.
  MAINTAINERS: Add maintainer for xilinx-ams
  dt-bindings: iio: adc: Add Xilinx AMS binding documentation
  iio: adc: Add Xilinx AMS driver
  device property: Add fwnode_iomap()
  iio:accel:kxcjk-1013: Mark struct __maybe_unused to avoid warning.
  iio:accel:bmc150: Mark structure __maybe_unused as only needed with for pm ops.
  iio:dummy: Drop set but unused variable len.
  iio:magn:ak8975: Suppress clang W=1 warning about pointer to enum conversion.
  iio:imu:inv_mpu6050: Suppress clang W=1 warning about pointer to enum conversion.
  iio:imu:inv_icm42600: Suppress clang W=1 warning about pointer to enum conversion.
  iio:dac:mcp4725: Suppress clang W=1 warning about pointer to enum conversion.
  iio:amplifiers:hmc425a: Suppress clang W=1 warning about pointer to enum conversion.
  iio:adc:ti-ads1015: Suppress clang W=1 warning about pointer to enum conversion.
  iio:adc:rcar: Suppress clang W=1 warning about pointer to enum conversion.
  iio:adc:ina2xx-adc: Suppress clang W=1 warning about pointer to enum conversion.
  iio:accel:bma180: Suppress clang W=1 warning about pointer to enum conversion.
  drivers:iio:dac: Add AD3552R driver support
  dt-bindings: iio: dac: Add adi,ad3552r.yaml
  ...

modprobe can't handle spaces in aliases.

Fixes: 93fbe91b5521 ("iio: Add STM32 timer trigger driver")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20211125182850.2645424-1-hi@alyssa.is
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The shared parameter should be configurable based on its usage, and not
constrained to IIO_SHARED_BY_TYPE.

This patch aims to improve the flexibility in using the
IIO_ENUM_AVAILABLE define and avoid redefining custom iio enums that
expose the shared parameter.

An example is the ad5766.c driver where IIO_ENUM_AVAILABLE_SHARED was
defined in order to achieve `shared` parameter customization.

The current state of the IIO_ENUM_AVAILABLE implementation will imply
similar redefinitions each time a driver will require access to the
`shared` parameter. An example would be admv1013 driver which will
require custom device attribute for the frequency translation modes:
Quadrature I/Q mode and Intermediate Frequency mode.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20211119085627.6348-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The IIO core handles a trigger ops with all NULL callbacks the
same as if the trigger ops itself was NULL.

Remove the empty trigger ops from the interrupt trigger driver to slightly
reduce the boilerplate code. Object size of the driver module is also
slightly reduced.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211031142130.20791-2-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The IIO core handles a trigger ops with all NULL callbacks the
same as if the trigger ops itself was NULL.

Remove the empty trigger ops from the interrupt trigger driver to slightly
reduce the boilerplate code. Object size of the driver module is also
slightly reduced.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211031142130.20791-1-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>