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tests: adc: add configuration and overlay for DMA support on Silabs IADC
This commit introduces a new configuration file for DMA support specific to the Silabs IADC, along with updates to the test case YAML and device tree overlay for the xg29_rb4412a board. The changes ensure that the ADC driver can utilize DMA operations effectively. Signed-off-by: Martin Hoff <[email protected]>
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‎tests/drivers/adc/adc_api/boards/bg29_rb4420a.overlay‎

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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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dmas = <&dma0 DMA_REQSEL_IADC0IADC_SCAN>;
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channel@0 {
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reg = <0>;
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zephyr,input-positive = <IADC_INPUT_VBAT>;
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};
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};
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&dma0 {
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status = "okay";
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};

‎tests/drivers/adc/adc_api/boards/sltb010a.overlay‎

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&adc0 {
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pinctrl-0 = <&adc0_default>;
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pinctrl-names = "default";
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dmas = <&dma0 DMA_REQSEL_IADC0IADC_SCAN>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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zephyr,input-positive = <IADC_INPUT_PB3>;
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};
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};
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&dma0 {
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status = "okay";
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};

‎tests/drivers/adc/adc_api/boards/slwrb4180a.overlay‎

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&adc0 {
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pinctrl-0 = <&adc0_default>;
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pinctrl-names = "default";
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dmas = <&dma0 DMA_REQSEL_IADC0IADC_SCAN>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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zephyr,input-positive = <IADC_INPUT_PD3>;
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};
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};
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&dma0 {
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status = "okay";
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};

‎tests/drivers/adc/adc_api/boards/xg23_rb4210a.overlay‎

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&adc0 {
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pinctrl-0 = <&adc0_default>;
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pinctrl-names = "default";
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dmas = <&dma0 DMA_REQSEL_IADC0IADC_SCAN>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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zephyr,input-positive = <IADC_INPUT_PB3>;
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};
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};
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&dma0 {
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status = "okay";
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};

‎tests/drivers/adc/adc_api/boards/xg24_rb4187c.overlay‎

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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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dmas = <&dma0 DMA_REQSEL_IADC0IADC_SCAN>;
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channel@0 {
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reg = <0>;
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zephyr,input-positive = <IADC_INPUT_GND>;
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};
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};
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&dma0 {
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status = "okay";
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};

‎tests/drivers/adc/adc_api/boards/xg27_dk2602a.overlay‎

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&adc0 {
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pinctrl-0 = <&adc0_default>;
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pinctrl-names = "default";
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dmas = <&dma0 DMA_REQSEL_IADC0IADC_SCAN>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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zephyr,input-positive = <IADC_INPUT_PB3>;
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};
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};
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&dma0 {
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status = "okay";
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};

‎tests/drivers/adc/adc_api/boards/xg29_rb4412a.overlay‎

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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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dmas = <&dma0 DMA_REQSEL_IADC0IADC_SCAN>;
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channel@0 {
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reg = <0>;
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zephyr,input-positive = <IADC_INPUT_VBAT>;
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};
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};
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&dma0 {
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status = "okay";
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};

‎tests/drivers/adc/adc_api/overlay-dma-silabs.conf‎

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#
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# Copyright (c) 2025 Silicon Laboratories Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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CONFIG_TEST_USERSPACE=n
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CONFIG_DMA=y
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CONFIG_ADC_SILABS_IADC_DMA=y

‎tests/drivers/adc/adc_api/testcase.yaml‎

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- dma
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platform_allow:
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- esp32s3_devkitc/esp32s3/procpu
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drivers.adc.dma_silabs:
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extra_args:
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- EXTRA_CONF_FILE="overlay-dma-silabs.conf"
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depends_on:
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- adc
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- dma
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platform_allow:
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- slwrb4180a
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- sltb010a
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- xg23_rb4210a
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- xg24_rb4187c
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- xg27_dk2602a
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- bg29_rb4420a
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- xg29_rb4412a
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drivers.adc.dma_silabs_async:
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extra_args:
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- EXTRA_CONF_FILE="overlay-dma-silabs.conf"
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- CONFIG_ADC_ASYNC=y
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depends_on:
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- adc
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- dma
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platform_allow:
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- slwrb4180a
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- sltb010a
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- xg23_rb4210a
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- xg24_rb4187c
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- xg27_dk2602a
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- bg29_rb4420a
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- xg29_rb4412a

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