diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 932de1f9d1e74ce0a3d81a9770b87b669f90d9f8..a8819a08a8287d5532fe6e1967d7a3459738dee9 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -134,6 +134,7 @@ config AT91_ADC
 config AT91_SAMA5D2_ADC
 	tristate "Atmel AT91 SAMA5D2 ADC"
 	depends on ARCH_AT91 || COMPILE_TEST
+	depends on HAS_IOMEM
 	help
 	  Say yes here to build support for Atmel SAMA5D2 ADC which is
 	  available on SAMA5D2 SoC family.