samples: i2s: add esp32 board overlay files

Adds esp32 board overlay files to i2s samples

Signed-off-by: Marcio Ribeiro <[email protected]>

Author: wmrsouza

samples/drivers/i2s/echo/boards/esp32_devkitc_wrover_procpu.overlay

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2025 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&i2s0_default {
+	group1 {
+		pinmux = <I2S0_O_WS_GPIO33>,
+				<I2S0_O_BCK_GPIO32>,
+				<I2S0_O_SD_GPIO27>,
+				<I2S0_I_WS_GPIO26>,
+				<I2S0_I_BCK_GPIO25>;
+		output-enable;
+	};
+	group2 {
+		pinmux = <I2S0_I_SD_GPIO18>;
+		input-enable;
+	};
+};
+
+i2s_rxtx: &i2s0 {
+	status = "okay";
+
+	interrupts = <I2S0_INTR_SOURCE IRQ_DEFAULT_PRIORITY 0>,
+		<I2S0_INTR_SOURCE IRQ_DEFAULT_PRIORITY 0>;
+	interrupt-names = "tx", "rx";
+
+};

samples/drivers/i2s/echo/boards/esp32s2_devkitc.overlay

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2025 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&i2s0_default {
+	group1 {
+		pinmux = <I2S0_O_WS_GPIO17>,
+				<I2S0_O_BCK_GPIO16>,
+				<I2S0_O_SD_GPIO15>,
+				<I2S0_I_WS_GPIO11>,
+				<I2S0_I_BCK_GPIO10>;
+		output-enable;
+	};
+	group2 {
+		pinmux = <I2S0_I_SD_GPIO18>;
+		input-enable;
+	};
+};
+
+i2s_rxtx: &i2s0 {
+	status = "okay";
+
+	interrupts = <I2S0_INTR_SOURCE IRQ_DEFAULT_PRIORITY 0>,
+		<I2S0_INTR_SOURCE IRQ_DEFAULT_PRIORITY 0>;
+	interrupt-names = "tx", "rx";
+
+};

samples/drivers/i2s/output/boards/esp32_devkitc_wrover_procpu.overlay

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2025 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	aliases {
+		i2s-tx = &i2s0;
+	};
+};
+
+&i2s0_default {
+	group1 {
+		pinmux = <I2S0_O_WS_GPIO33>,
+				<I2S0_O_BCK_GPIO32>,
+				<I2S0_O_SD_GPIO27>;
+		output-enable;
+	};
+	group2 {
+		pinmux = <I2S0_I_SD_GPIO18>;
+		input-enable;
+	};
+};
+
+&i2s0 {
+	status = "okay";
+
+	interrupts = <I2S0_INTR_SOURCE IRQ_DEFAULT_PRIORITY 0>;
+	interrupt-names = "tx";
+};

samples/drivers/led/led_strip/boards/esp32s2_devkitc.conf

@@ -0,0 +1 @@
+CONFIG_I2S=y

samples/drivers/led/led_strip/boards/esp32s2_devkitc.overlay

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2025 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/led/led.h>
+
+/ {
+	aliases {
+		led-strip = &led_strip;
+	};
+};
+
+&i2s0_default {
+	group1 {
+		pinmux = <I2S0_O_SD_GPIO18>;
+		output-enable;
+	};
+};
+
+i2s_led: &i2s0 {
+	status = "okay";
+
+	interrupts = <I2S0_INTR_SOURCE IRQ_DEFAULT_PRIORITY 0>;
+	interrupt-names = "tx";
+
+	led_strip: ws2812@0 {
+		compatible = "worldsemi,ws2812-i2s";
+		reg = <0>;
+
+		chain-length = <1>;
+		color-mapping = <LED_COLOR_ID_GREEN
+				 LED_COLOR_ID_RED
+				 LED_COLOR_ID_BLUE>;
+		reset-delay = <500>;
+	};
+};