iio: adc: Constify struct iio_map

'struct iio_map' are not modified in these drivers.

Constifying this structure moves some data to a read-only section, so
increase overall security.

In order to d

iio: adc: Constify struct iio_map

'struct iio_map' are not modified in these drivers.

Constifying this structure moves some data to a read-only section, so
increase overall security.

In order to do it, the prototype of iio_map_array_register() and
devm_iio_map_array_register(), and a few structures that hold a
"struct iio_map *" need to be adjusted.

On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
21086 760 0 21846 5556 drivers/iio/adc/axp20x_adc.o

After:
=====
text data bss dec hex filename
21470 360 0 21830 5546 drivers/iio/adc/axp20x_adc.o
33842 1697 384 35923 8c53 drivers/iio/addac/ad74413r.o

--
Compile tested only

Signed-off-by: Christophe JAILLET <[email protected]>
Link: https://patch.msgid.link/5729dc3cc3892ecf0d8ea28c5f7307b34e27493e.1725729801.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: inkern: introduce devm_iio_map_array_register() short-hand function

This change introduces a device-managed variant to the
iio_map_array_register() function. It's a simple implementation of cal

iio: inkern: introduce devm_iio_map_array_register() short-hand function

This change introduces a device-managed variant to the
iio_map_array_register() function. It's a simple implementation of calling
iio_map_array_register() and registering a callback to
iio_map_array_unregister() with the devm_add_action_or_reset().

The function uses an explicit 'dev' parameter to bind the unwinding to. It
could have been implemented to implicitly use the parent of the IIO device,
however it shouldn't be too expensive to callers to just specify to which
device object to bind this unwind call.
It would make the API a bit more flexible.

Signed-off-by: Alexandru Ardelean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Based on 2 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of th

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Based on 2 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Enrico Weigelt <[email protected]>
Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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iio: Make possible to include driver.h first

If we put headers alphabetically sorted in the IIO driver,
the compilation will abort because of unknown type to handle.

Simple add a forward declaratio

iio: Make possible to include driver.h first

If we put headers alphabetically sorted in the IIO driver,
the compilation will abort because of unknown type to handle.

Simple add a forward declaration of opaque struct iio_dev.

Suggested-by: Jonathan Cameron <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: Simplify iio_map_array_unregister API

Instead of requiring the map to unregister, simply unregister all map entries
associated with the given iio device. This simplifies map removal and also wo

iio: Simplify iio_map_array_unregister API

Instead of requiring the map to unregister, simply unregister all map entries
associated with the given iio device. This simplifies map removal and also works
for maps generated through devicetree.

Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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IIO: Move core headers to include/linux/iio

Step 1 in moving the IIO core out of staging.

Signed-off-by: Jonathan Cameron <[email protected]>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundatio

IIO: Move core headers to include/linux/iio

Step 1 in moving the IIO core out of staging.

Signed-off-by: Jonathan Cameron <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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