dts: arm: silabs: update IADC driver binding for all series 2 board

Update compatibility from "silabs,gecko-iadc" to "silabs,iadc". It
allows to use the new driver which are more custom to series 2 boards.

Signed-off-by: Martin Hoff <[email protected]>

Author: Martinhoff-maker

doc/releases/migration-guide-4.3.rst

@@ -61,6 +61,12 @@ Device Drivers and Devicetree
 
 .. zephyr-keep-sorted-start re(^\w)
 
+ADC
+===
+
+* ``iadc_gecko.c`` driver is deprecated, consider using ``adc_silabs_iadc.c`` instead.
+  :dtcompatible:`silabs,gecko-iadc` has been replaced by :dtcompatible:`silabs,iadc`.
+
 Comparator
 ==========
 

drivers/adc/Kconfig.gecko

@@ -5,12 +5,14 @@
 
 config ADC_GECKO_IADC
 	bool "Gecko Incremental ADC driver"
-	default y
 	depends on DT_HAS_SILABS_GECKO_IADC_ENABLED
+	depends on !ADC_SILABS_IADC
 	select SOC_GECKO_IADC
 	select ADC_CONFIGURABLE_INPUTS
+	select DEPRECATED
 	help
-	  Enable the driver implementation for the Silabs GeckoEXX32 Incremental ADC
+	  [deprecated] Enable the driver implementation for the Silabs GeckoEXX32 Incremental ADC.
+	  This option is deprecated, use ADC_SILABS_IADC instead.
 
 config ADC_GECKO_ADC
 	bool "Gecko ADC driver"

drivers/adc/Kconfig.silabs

@@ -4,7 +4,7 @@
 config ADC_SILABS_IADC
 	bool "Silabs Incremental ADC driver"
 	default y
-	depends on DT_HAS_SILABS_IADC_ENABLED
+	depends on (DT_HAS_SILABS_IADC_ENABLED || DT_HAS_SILABS_GECKO_IADC_ENABLED)
 	select SILABS_SISDK_IADC
 	select ADC_CONFIGURABLE_INPUTS
 	help

drivers/adc/adc_silabs_iadc.c

@@ -615,3 +615,8 @@ static DEVICE_API(adc, iadc_api) = {
 			      &iadc_config_##n, POST_KERNEL, CONFIG_ADC_INIT_PRIORITY, &iadc_api);
 
 DT_INST_FOREACH_STATUS_OKAY(IADC_INIT)
+
+/* Compatibility with old gecko iadc driver */
+#undef DT_DRV_COMPAT
+#define DT_DRV_COMPAT silabs_gecko_iadc
+DT_INST_FOREACH_STATUS_OKAY(IADC_INIT)

dts/arm/silabs/xg21/xg21.dtsi

@@ -469,7 +469,7 @@
 		};
 
 		adc0: adc@5a004000 {
-			compatible = "silabs,gecko-iadc";
+			compatible = "silabs,iadc";
 			reg = <0x5a004000 0x4000>;
 			#io-channel-cells = <1>;
 			clocks = <&cmu CLOCK_AUTO CLOCK_BRANCH_IADCCLK>;

dts/arm/silabs/xg22/xg22.dtsi

@@ -511,7 +511,7 @@
 		};
 
 		adc0: adc@5a004000 {
-			compatible = "silabs,gecko-iadc";
+			compatible = "silabs,iadc";
 			reg = <0x5a004000 0x4000>;
 			#io-channel-cells = <1>;
 			clocks = <&cmu CLOCK_IADC0 CLOCK_BRANCH_IADCCLK>;

dts/arm/silabs/xg23/xg23.dtsi

@@ -531,7 +531,7 @@
 		};
 
 		adc0: adc@59004000 {
-			compatible = "silabs,gecko-iadc";
+			compatible = "silabs,iadc";
 			reg = <0x59004000 0x4000>;
 			#io-channel-cells = <1>;
 			clocks = <&cmu CLOCK_IADC0 CLOCK_BRANCH_IADCCLK>;

dts/arm/silabs/xg24/xg24.dtsi

@@ -514,7 +514,7 @@
 		};
 
 		adc0: adc@59004000 {
-			compatible = "silabs,gecko-iadc";
+			compatible = "silabs,iadc";
 			reg = <0x59004000 0x4000>;
 			#io-channel-cells = <1>;
 			clocks = <&cmu CLOCK_IADC0 CLOCK_BRANCH_IADCCLK>;

dts/arm/silabs/xg27/xg27.dtsi

@@ -511,7 +511,7 @@
 		};
 
 		adc0: adc@5a004000 {
-			compatible = "silabs,gecko-iadc";
+			compatible = "silabs,iadc";
 			reg = <0x5a004000 0x4000>;
 			#io-channel-cells = <1>;
 			clocks = <&cmu CLOCK_IADC0 CLOCK_BRANCH_IADCCLK>;

dts/arm/silabs/xg28/xg28.dtsi

@@ -531,7 +531,7 @@
 		};
 
 		adc0: adc@59004000 {
-			compatible = "silabs,gecko-iadc";
+			compatible = "silabs,iadc";
 			reg = <0x59004000 0x4000>;
 			#io-channel-cells = <1>;
 			clocks = <&cmu CLOCK_IADC0 CLOCK_BRANCH_IADCCLK>;