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iio: chemical: select IRQ_WORK for ATLAS ph sensor 

The newly added atlas-ph-sensor driver uses irq_work_queue, which
may not always be enabled:

ERROR: "irq_work_queue" [drivers/iio/chemical/atlas-ph-sensor.ko] undefined!

This adds a 'select' statement to Kconfig to ensure it's there
when we need it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 27dec00ecf ("iio: chemical: add Atlas pH-SM sensor support")
Reviewed-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Arnd Bergmann 2016-02-02 15:36:39 +01:00 committed by Jonathan Cameron
parent 182b49058e
commit 3b31b783ad
1 changed files with 1 additions and 0 deletions
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drivers/iio/chemical/Kconfig
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@ -10,6 +10,7 @@ config ATLAS_PH_SENSOR
select REGMAP_I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
select IRQ_WORK
help
Say Y here to build I2C interface support for the Atlas
Scientific OEM pH-SM sensor.