iio: srf08: fix link error "devm_iio_triggered_buffer_setup" undefined

Functions for triggered buffer support are needed by this module.
If they are not defined accidentally by another driver, there's an error
thrown out while linking.

Add a select of IIO_BUFFER and IIO_TRIGGERED_BUFFER in the Kconfig file.

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Fixes: a83195937151 ("iio: srf08: add triggered buffer support")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/proximity/Kconfig b/drivers/iio/proximity/Kconfig
index fcb1c4ba5e4143d2c8457b5a436355ca2158899a..f726f9427602f9ddff3820797ac40111702c937c 100644 (file)
--- a/drivers/iio/proximity/Kconfig
+++ b/drivers/iio/proximity/Kconfig
@@ -68,6 +68,8 @@ config SX9500
 
 config SRF08
        tristate "Devantech SRF02/SRF08/SRF10 ultrasonic ranger sensor"
+       select IIO_BUFFER
+       select IIO_TRIGGERED_BUFFER
        depends on I2C
        help
          Say Y here to build a driver for Devantech SRF02/SRF08/SRF10