drivers: adc: Add support for cc23x0 ADC

Add support for 16-channel ADC to cc23x0 SoC. The driver supports the
following conversion modes:
- Single channel | Single conversion,
- Sequence of channels (up to 4) | Single conversion.

Signed-off-by: Julien Panis <[email protected]>

Author: jpanisbl

drivers/adc/CMakeLists.txt

@@ -27,6 +27,7 @@ zephyr_library_sources_ifdef(CONFIG_ADC_NPCX		adc_npcx.c)
 zephyr_library_sources_ifdef(CONFIG_USERSPACE		adc_handlers.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_CC32XX		adc_cc32xx.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_CC13XX_CC26XX		adc_cc13xx_cc26xx.c)
+zephyr_library_sources_ifdef(CONFIG_ADC_CC23X0		adc_cc23x0.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_EMUL		adc_emul.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_TEST		adc_test.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_ADS1X1X		adc_ads1x1x.c)

drivers/adc/Kconfig

@@ -84,6 +84,8 @@ source "drivers/adc/Kconfig.cc32xx"
 
 source "drivers/adc/Kconfig.cc13xx_cc26xx"
 
+source "drivers/adc/Kconfig.cc23x0"
+
 source "drivers/adc/Kconfig.adc_emul"
 
 source "drivers/adc/Kconfig.vf610"

drivers/adc/Kconfig.cc23x0

@@ -0,0 +1,10 @@
+# Copyright (c) 2024 BayLibre, SAS
+# SPDX-License-Identifier: Apache-2.0
+
+config ADC_CC23X0
+	bool "CC23X0 ADC driver"
+	default y
+	depends on DT_HAS_TI_CC23X0_ADC_ENABLED
+	select PINCTRL
+	help
+	  Enable the TI CC23X0 ADC driver.