Staging: IIO: tsl2561 digital light sensor core support

This is a pretty minimalist example of an IIO driver.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/iio/Makefile b/drivers/staging/iio/Makefile
index 9d11f64..4e78f98 100644
--- a/drivers/staging/iio/Makefile
+++ b/drivers/staging/iio/Makefile
@@ -5,4 +5,5 @@
 obj-$(CONFIG_IIO) += industrialio.o
 industrialio-y := industrialio-core.o
 
-obj-y += adc/
\ No newline at end of file
+obj-y += adc/
+obj-y += light/
\ No newline at end of file