dm: adc: Add SPL_ADC Kconfig symbol for use of ADC in SPL
What model of Radxa ZERO 3W/3E board can be identified using ADC at
runtime, add a Kconfig symbol to allow use of ADC in SPL.
This will be used to identify board model in SPL to allow loading
correct FIT configuration and FDT for U-Boot proper at SPL phase.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/adc/Kconfig b/drivers/adc/Kconfig
index c9cdbe6..37235f5 100644
--- a/drivers/adc/Kconfig
+++ b/drivers/adc/Kconfig
@@ -1,5 +1,6 @@
config ADC
bool "Enable ADC drivers using Driver Model"
+ depends on DM
help
This enables ADC API for drivers, which allows driving ADC features
by single and multi-channel methods for:
@@ -11,6 +12,10 @@
- support supply's phandle with auto-enable
- supply polarity setting in fdt
+config SPL_ADC
+ bool "Enable ADC drivers using Driver Model in SPL"
+ depends on SPL_DM
+
config ADC_EXYNOS
bool "Enable Exynos 54xx ADC driver"
depends on ADC
diff --git a/drivers/adc/Makefile b/drivers/adc/Makefile
index 5336c82..dca0b39 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_$(SPL_TPL_)ADC) += adc-uclass.o
obj-$(CONFIG_ADC_EXYNOS) += exynos-adc.o
obj-$(CONFIG_ADC_SANDBOX) += sandbox.o
obj-$(CONFIG_SARADC_ROCKCHIP) += rockchip-saradc.o