adc: Add driver for STM32 ADC
This patch adds support for STMicroelectronics STM32 ADC (analog to
digital converter). It's originally based on Linux kernel v4.18-rcs
drivers/iio/adc/stm32-adc*. It's composed of:
- core driver (UCLASS_SIMPLE_BUS) manages common resources (clk, regu).
- child drivers (UCLASS_ADC) declare each ADC, channels and handle
conversions.
This driver currently supports STM32H7 and STM32MP1 ADC.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/adc/Makefile b/drivers/adc/Makefile
index 95c93d4..cca0fec 100644
--- a/drivers/adc/Makefile
+++ b/drivers/adc/Makefile
@@ -10,3 +10,4 @@
obj-$(CONFIG_ADC_SANDBOX) += sandbox.o
obj-$(CONFIG_SARADC_ROCKCHIP) += rockchip-saradc.o
obj-$(CONFIG_SARADC_MESON) += meson-saradc.o
+obj-$(CONFIG_STM32_ADC) += stm32-adc.o stm32-adc-core.o