iio: trigger: Add simple trigger_validation helper

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Some triggers can only be attached to the IIO device that corresponds to
the same physical device. Implement generic helper which can be used as
a validate_trigger callback for such devices.

Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/51cd3e3e74a6addf8d333f4a109fb9c5a11086ee.1683541225.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Matti Vaittinen 2023-05-08 13:31:17 +03:00 • committed by Jonathan Cameron

parent 4bef3adbd4

commit 517985ebc5

2 changed files with 22 additions and 1 deletions

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22

drivers/iio/industrialio-trigger.c

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1

include/linux/iio/trigger.h

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