Re: [PATCH] iio: trigger: iio-trig-interrupt: use devm_* helpers

[Stepan Ionichev]

On Mon, May 11, 2026 at 19:56, Jonathan Cameron wrote:
> Silly question for you - how does this driver actually bind on a
> modern platform? That is - how do we get one of these?

It does not, as far as I can see.

Grep across the mainline tree:

- The string "iio_interrupt_trigger" appears only in the driver itself
  (drivers/iio/trigger/iio-trig-interrupt.c:101 — the .driver.name).
- No .of_match_table and no .id_table on the driver.
- No platform_device_register*() call anywhere in arch/, drivers/ or
  board files that would create a device named "iio_interrupt_trigger".
- No Documentation/devicetree/bindings/ entry.

So the only way to instantiate it on a current kernel is an explicit
out-of-tree platform_device_register("iio_interrupt_trigger", ...), and
nothing in mainline does that.

Given that, please drop v1 and v2 of this patch. The cleanup-for-its-
own-sake is not worth the parent / sysfs-hierarchy change Andy flagged
when there are no in-tree users to validate it against.

If at some point a user appears in mainline (DT binding, ACPI hookup
or a board file), the devm_* conversion can come along with that work.

Sorry for the noise.

Stepan