iio: adc: dln2-adc: fix build error

rddunlap · jic23 · commit 5151b4afb41d · 2017-10-08T11:42:00.000+01:00
The dln2-adc driver uses interface(s) that are controlled by the
IIO_TRIGGERED_BUFFER Kconfig symbol, so the driver needs to select
that symbol to prevent the build error.

drivers/iio/adc/dln2-adc.o: In function `dln2_adc_probe':
dln2-adc.c:(.text+0x528): undefined reference to `devm_iio_triggered_buffer_setup'

Signed-off-by: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Reported-by: kbuild test robot &lt;fengguang.wu@intel.com&gt;
Cc: Jonathan Cameron &lt;jic23@kernel.org&gt;
Cc: linux-iio@vger.kernel.org
Cc: Jack Andersen &lt;jackoalan@gmail.com&gt;
Signed-off-by: Jonathan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
@@ -243,6 +243,8 @@ config DA9150_GPADC
 config DLN2_ADC
 	tristate "Diolan DLN-2 ADC driver support"
 	depends on MFD_DLN2
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for Diolan DLN-2 ADC.
 
