staging: iio: ring_sw Add select of triggers to avoid build issue.

Currently all drivers that use ring_sw use triggers and I am yet
to see a good reason for any driver not doing so.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index 569b938c89f939b2395316a586451b3008f5474a..ed48815a916b37b1d5c5ffd2aca810b863276baf 100644 (file)
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -21,6 +21,7 @@ config IIO_RING_BUFFER
 if IIO_RING_BUFFER
 
 config IIO_SW_RING
+       select IIO_TRIGGER
        tristate "Industrial I/O lock free software ring"
        help
          Example software ring buffer implementation.  The design aim