drivers: adc: Infineon AutAnalog SAR ADC driver

Adds AutAnalog SAR ADC driver files to support ADC conversions in the
PCSOC Edge family of MCUs.

Signed-off-by: John Batch <[email protected]>

Author: jsbatch

drivers/adc/CMakeLists.txt

@@ -48,6 +48,7 @@ zephyr_library_sources_ifdef(CONFIG_ADC_GECKO_ADC   	adc_gecko.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_SILABS_IADC   	adc_silabs_iadc.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_SILABS_SIWX91X 	adc_silabs_siwx91x.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_INFINEON_CAT1	adc_ifx_cat1.c)
+zephyr_library_sources_ifdef(CONFIG_ADC_INFINEON_AUTANALOG_SAR adc_ifx_autanalog_sar.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_SMARTBOND_GPADC adc_smartbond_gpadc.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_SMARTBOND_SDADC adc_smartbond_sdadc.c)
 zephyr_library_sources_ifdef(CONFIG_ADC_TLA202X         adc_tla202x.c)

drivers/adc/Kconfig

@@ -136,6 +136,8 @@ source "drivers/adc/Kconfig.silabs"
 
 source "drivers/adc/Kconfig.ifx_cat1"
 
+source "drivers/adc/Kconfig.ifx_autanalog_sar"
+
 source "drivers/adc/Kconfig.smartbond"
 
 source "drivers/adc/Kconfig.tla202x"

drivers/adc/Kconfig.ifx_autanalog_sar

@@ -0,0 +1,15 @@
+# Copyright (c) 2025 Infineon Technologies AG,
+# or an affiliate of Infineon Technologies AG.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# Infineon AutAnalog SAR ADC configuration options
+
+config ADC_INFINEON_AUTANALOG_SAR
+	bool "Infineon AutAnalog SAR ADC driver"
+	default y
+	depends on DT_HAS_INFINEON_AUTANALOG_SAR_ADC_ENABLED
+	select USE_INFINEON_AUTANALOG_SAR_ADC
+	select ADC_CONFIGURABLE_INPUTS
+	help
+	  This option enables the ADC driver for Infineon MCUs using AutAnalog SAR ADC.