linux-stable/drivers/staging/iio/trigger/Kconfig
Lars-Peter Clausen c720842e36 staging:iio: Remove periodic RTC trigger driver
With the recently introduced hrtimer based trigger we have a fully
functional replacement for the RTC timer trigger that is more flexible and
has a better interface to instantiate and manage the trigger instances. The
RTC trigger timer could only be instantiated using platform devices which
makes it unsuitable for modern devicetree based platforms, while the
hrtimer trigger has a configfs based interface that allows creating and
deletion of triggers at runtime.

In addition since a few years the periodic RTC timer is internally always
emulated using a hrtimer using the hrtimer interface directly will yield
the same timing precision. So using the RTC timer won't have any advantages
on this front either.

There is also no evidence that the periodic RTC trigger is currently
actually being used on any system. So considering all this remove the
driver. Also remove the related item from the TODO list.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-27 17:18:38 +00:00

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#
# Industrial I/O standalone triggers
#
comment "Triggers - standalone"
if IIO_TRIGGER
config IIO_BFIN_TMR_TRIGGER
tristate "Blackfin TIMER trigger"
depends on BLACKFIN
select BFIN_GPTIMERS
help
Provides support for using a Blackfin timer as IIO triggers.
If unsure, say N (but it's safe to say "Y").
To compile this driver as a module, choose M here: the
module will be called iio-trig-bfin-timer.
endif # IIO_TRIGGER