[PATCH V4 2/7] spl: Add Kconfig options for ADC

[Chris Morgan <macroalpha82@gmail.com>]

From: Chris Morgan <macromorgan@hotmail.com>

Add kconfig options to enable ADC in SPL

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 common/spl/Kconfig   | 7 +++++++
 drivers/Makefile     | 1 +
 drivers/adc/Makefile | 2 +-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index c521b02f4a..ada9dcea5c 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -579,6 +579,13 @@ config SPL_FIT_IMAGE_TINY
 	  ensure this information is available to the next image
 	  invoked).
 
+config SPL_ADC
+	bool "Support ADC drivers"
+	help
+	  Enable ADC drivers in SPL. These drivers can allow the reading of
+	  analog values from one or more channels. Enable this option to
+	  build the drivers in drivers/adc as part of an SPL build.
+
 config SPL_CACHE
 	bool "Support CACHE drivers"
 	help
diff --git a/drivers/Makefile b/drivers/Makefile
index bf73b7718c..81ba2c534e 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0+
 
+obj-$(CONFIG_$(SPL_)ADC) += adc/
 obj-$(CONFIG_$(SPL_TPL_)BIOSEMU) += bios_emulator/
 obj-$(CONFIG_$(SPL_TPL_)BLK) += block/
 obj-$(CONFIG_$(SPL_TPL_)BOOTCOUNT_LIMIT) += bootcount/
diff --git a/drivers/adc/Makefile b/drivers/adc/Makefile
index 5336c82097..9eb07769b0 100644
--- a/drivers/adc/Makefile
+++ b/drivers/adc/Makefile
@@ -4,7 +4,7 @@
 # Przemyslaw Marczak <p.marczak@samsung.com>
 #
 
-obj-$(CONFIG_ADC) += adc-uclass.o
+obj-$(CONFIG_$(SPL_)ADC) += adc-uclass.o
 obj-$(CONFIG_ADC_EXYNOS) += exynos-adc.o
 obj-$(CONFIG_ADC_SANDBOX) += sandbox.o
 obj-$(CONFIG_SARADC_ROCKCHIP) += rockchip-saradc.o
-- 
2.34.1