iio: add configuration option for debug support

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

2 files changed, 9 insertions, 0 deletions

diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index 524380c9ae6c..b682f6f54501 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -12,6 +12,13 @@ menuconfig IIO
 
 if IIO
 
+config IIO_DEBUG
+        boolean "Debug support for Industrial I/O"
+        depends on DEBUG_KERNEL
+        help
+          Say "yes" to enable debug messaging (like dev_dbg and pr_debug)
+          support in Industrial I/O subsystem and drivers.
+
 config IIO_BUFFER
         bool "Enable buffer support within IIO"
         help
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index 7a3866c2d2a1..6e43e5b8d4ed 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -2,6 +2,8 @@
 # Makefile for the industrial I/O core.
 #
 
+ccflags-$(CONFIG_IIO_DEBUG) := -DDEBUG
+
 obj-$(CONFIG_IIO) += industrialio.o
 industrialio-y := industrialio-core.o industrialio-event.o inkern.o
 industrialio-$(CONFIG_IIO_BUFFER) += industrialio-buffer.o