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Hi-Im-Davidnordicjm
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tests: drivers: audio: Add support for nRF7120
Added supported for pdm_loopback, pdm_instances and dmic_api tests for nRF7120 which uses both PCLK and AUXPLL as driving clocks for the PDM. Signed-off-by: David Jewsbury <[email protected]>
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‎tests/drivers/audio/pdm_instances/boards/nrf7120pdk_nrf7120_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/* Test requires loopbacks:
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* - between P1.14 and P1.0,
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* - between P1.13 and P1.15.
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* For best performance, PDM_CLK shall be on 'Clock pin'.
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*/
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&pinctrl {
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pdm20_default_test: pdm20_default_test {
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group1 {
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psels = <NRF_PSEL(PDM_CLK, 1, 14)>,
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<NRF_PSEL(PDM_DIN, 1, 0)>;
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};
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};
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pdm21_default_test: pdm21_default_test {
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group1 {
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psels = <NRF_PSEL(PDM_CLK, 1, 13)>,
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<NRF_PSEL(PDM_DIN, 1, 15)>;
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};
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};
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};
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&pdm20 {
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status = "okay";
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pinctrl-0 = <&pdm20_default_test>;
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pinctrl-names = "default";
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clock-source = "PCLK32M";
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};
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&pdm21 {
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status = "okay";
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pinctrl-0 = <&pdm21_default_test>;
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pinctrl-names = "default";
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clock-source = "PCLK32M";
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};

‎tests/drivers/audio/pdm_instances/testcase.yaml‎

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@@ -12,5 +12,6 @@ tests:
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- nrf54h20dk/nrf54h20/cpuapp
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- nrf54l15dk/nrf54l15/cpuapp
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- nrf54lm20dk/nrf54lm20a/cpuapp
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- nrf7120pdk/nrf7120/cpuapp
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integration_platforms:
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- nrf54h20dk/nrf54h20/cpuapp

‎tests/drivers/audio/pdm_loopback/boards/nrf7120pdk_nrf7120_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/* Loopback between P1.0 and P1.14 required */
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/ {
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gpio_test {
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compatible = "gpio-leds";
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pulse_counter: pulse_counter {
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gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
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};
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};
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};
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&pinctrl {
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pdm20_default_alt: pdm20_default_alt {
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group1 {
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psels = <NRF_PSEL(PDM_CLK, 1, 14)>,
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<NRF_PSEL(PDM_DIN, 1, 12)>;
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};
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};
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};
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pdm_dev: &pdm20 {
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status = "okay";
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pinctrl-0 = <&pdm20_default_alt>;
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pinctrl-names = "default";
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clock-source = "PCLK32M";
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};
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&gpio1 {
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status = "okay";
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};
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&timer00 {
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status = "okay";
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};

‎tests/drivers/audio/pdm_loopback/boards/nrf7120pdk_nrf7120_cpuapp_audio_auxpll_44k1hz.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/* Loopback between P1.0 and P1.14 required */
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/ {
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gpio_test {
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compatible = "gpio-leds";
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pulse_counter: pulse_counter {
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gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
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};
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};
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};
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&pinctrl {
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pdm20_default_alt: pdm20_default_alt {
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group1 {
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psels = <NRF_PSEL(PDM_CLK, 1, 14)>,
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<NRF_PSEL(PDM_DIN, 1, 12)>;
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};
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};
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};
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pdm_dev: &pdm20 {
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status = "okay";
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pinctrl-0 = <&pdm20_default_alt>;
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pinctrl-names = "default";
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clock-source = "ACLK";
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};
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&audio_auxpll {
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nordic,frequency = <NRF_AUXPLL_FREQ_DIV_AUDIO_44K1>;
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status = "okay";
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};
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&gpio1 {
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status = "okay";
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};
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&timer00 {
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status = "okay";
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};

‎tests/drivers/audio/pdm_loopback/boards/nrf7120pdk_nrf7120_cpuapp_audio_auxpll_48khz.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/* Loopback between P1.0 and P1.14 required */
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/ {
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gpio_test {
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compatible = "gpio-leds";
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pulse_counter: pulse_counter {
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gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
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};
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};
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};
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&pinctrl {
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pdm20_default_alt: pdm20_default_alt {
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group1 {
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psels = <NRF_PSEL(PDM_CLK, 1, 14)>,
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<NRF_PSEL(PDM_DIN, 1, 12)>;
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};
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};
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};
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pdm_dev: &pdm20 {
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status = "okay";
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pinctrl-0 = <&pdm20_default_alt>;
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pinctrl-names = "default";
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clock-source = "ACLK";
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};
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&audio_auxpll {
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nordic,frequency = <NRF_AUXPLL_FREQ_DIV_AUDIO_48K>;
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status = "okay";
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};
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&gpio1 {
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status = "okay";
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};
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&timer00 {
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status = "okay";
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};

‎tests/drivers/audio/pdm_loopback/testcase.yaml‎

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extra_args:
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- CONFIG_NRFX_TIMER=y
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- CONFIG_TEST_PDM_SAMPLING_TIME=10
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drivers.audio.pdm_loopback.nrf7120.1280khz:
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platform_allow:
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- nrf7120pdk/nrf7120/cpuapp
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extra_args:
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- CONFIG_NRFX_TIMER=y
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- CONFIG_TEST_PDM_SAMPLING_RATE=16000
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- CONFIG_TEST_PDM_EXPECTED_FREQUENCY=1280000
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drivers.audio.pdm_loopback.nrf7120.auxpll.44k1hz:
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platform_allow:
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- nrf7120pdk/nrf7120/cpuapp
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extra_args:
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- CONFIG_NRFX_TIMER=y
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- CONFIG_TEST_PDM_SAMPLING_RATE=44100
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- CONFIG_TEST_PDM_EXPECTED_FREQUENCY=1411200
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- CONFIG_CLOCK_CONTROL=y
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- DTC_OVERLAY_FILE="boards/nrf7120pdk_nrf7120_cpuapp_audio_auxpll_44k1hz.overlay"
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drivers.audio.pdm_loopback.nrf7120.auxpll.48khz:
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platform_allow:
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- nrf7120pdk/nrf7120/cpuapp
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extra_args:
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- CONFIG_NRFX_TIMER=y
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- CONFIG_TEST_PDM_SAMPLING_RATE=48000
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- CONFIG_TEST_PDM_EXPECTED_FREQUENCY=1536000
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- CONFIG_CLOCK_CONTROL=y
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- DTC_OVERLAY_FILE="boards/nrf7120pdk_nrf7120_cpuapp_audio_auxpll_48khz.overlay"

‎tests/zephyr/drivers/audio/dmic_api/boards/nrf7120pdk_nrf7120_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/* Test requires loopbacks:
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* - between P1.14 and P1.0,
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* For best performance, PDM_CLK shall be on 'Clock pin'.
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*/
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/ {
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aliases {
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dmic-dev = &pdm20;
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};
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};
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&pinctrl {
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pdm20_default_test: pdm20_default_test {
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group1 {
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psels = <NRF_PSEL(PDM_CLK, 1, 14)>,
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<NRF_PSEL(PDM_DIN, 1, 0)>;
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};
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};
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};
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&pdm20 {
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status = "okay";
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pinctrl-0 = <&pdm20_default_test>;
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pinctrl-names = "default";
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clock-source = "PCLK32M";
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};

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