samples: driver: i2s: Support echo and codec on RT1060 EVKC

- increase the memory block count
- add generic codec configuration
- add rt1060 evkc and rt1170 evkb project configuration and overlay

Signed-off-by: Tomas Barak <tomas.barak@nxp.com>

samples/drivers/i2s/echo/boards/mimxrt1060_evk_mimxrt1062_qspi_C.conf

@@ -0,0 +1,10 @@
+#
+# Copyright 2025 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_HEAP_MEM_POOL_SIZE=81920
+CONFIG_AUDIO=y
+CONFIG_AUDIO_CODEC=y
+CONFIG_DMA_TCD_QUEUE_SIZE=4

samples/drivers/i2s/echo/boards/mimxrt1060_evk_mimxrt1062_qspi_C.overlay

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+i2s_rx: &sai1 {
+	nxp,rx-sync-mode;
+	status = "okay";
+};
+
+i2s_tx: &sai1 {
+	status = "okay";
+	mclk-output;
+};

samples/drivers/i2s/echo/boards/mimxrt1170_evk_mimxrt1176_cm7.conf

@@ -0,0 +1,10 @@
+#
+# Copyright 2025 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_HEAP_MEM_POOL_SIZE=81920
+CONFIG_AUDIO=y
+CONFIG_AUDIO_CODEC=y
+CONFIG_DMA_TCD_QUEUE_SIZE=4

samples/drivers/i2s/echo/boards/mimxrt1170_evk_mimxrt1176_cm7_B.overlay

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+i2s_rx: &sai1 {
+	nxp,rx-sync-mode;
+	status = "okay";
+};
+
+i2s_tx: &sai1 {
+	status = "okay";
+	mclk-output;
+};

samples/drivers/i2s/echo/src/main.c

@@ -9,6 +9,7 @@
 #include <zephyr/sys/printk.h>
 #include <zephyr/drivers/i2s.h>
 #include <zephyr/drivers/gpio.h>
+#include <zephyr/audio/codec.h>
 #include <string.h>
 
 
@@ -40,7 +41,7 @@ static struct gpio_dt_spec sw1_spec = GPIO_DT_SPEC_GET(SW1_NODE, gpios);
 #endif
 
 #define BLOCK_SIZE  (BYTES_PER_SAMPLE * SAMPLES_PER_BLOCK)
-#define BLOCK_COUNT (INITIAL_BLOCKS + 2)
+#define BLOCK_COUNT (INITIAL_BLOCKS + 4)
 K_MEM_SLAB_DEFINE_STATIC(mem_slab, BLOCK_SIZE, BLOCK_COUNT, 4);
 
 static int16_t echo_block[SAMPLES_PER_BLOCK];
@@ -256,6 +257,23 @@ int main(void)
 	if (!init_wm8731_i2c()) {
 		return 0;
 	}
+
+#else
+	const struct device *const codec_dev = DEVICE_DT_GET(DT_NODELABEL(audio_codec));
+	struct audio_codec_cfg audio_cfg;
+
+	audio_cfg.dai_route = AUDIO_ROUTE_PLAYBACK_CAPTURE;
+	audio_cfg.dai_type = AUDIO_DAI_TYPE_I2S;
+	audio_cfg.dai_cfg.i2s.word_size = SAMPLE_BIT_WIDTH;
+	audio_cfg.dai_cfg.i2s.channels = NUMBER_OF_CHANNELS;
+	audio_cfg.dai_cfg.i2s.format = I2S_FMT_DATA_FORMAT_I2S;
+	audio_cfg.dai_cfg.i2s.options = I2S_OPT_FRAME_CLK_MASTER;
+	audio_cfg.dai_cfg.i2s.frame_clk_freq = SAMPLE_FREQUENCY;
+	audio_cfg.dai_cfg.i2s.mem_slab = &mem_slab;
+	audio_cfg.dai_cfg.i2s.block_size = BLOCK_SIZE;
+	audio_codec_configure(codec_dev, &audio_cfg);
+	k_msleep(1000);
+
 #endif
 
 	if (!init_buttons()) {

samples/drivers/i2s/i2s_codec/boards/mimxrt1060_evk_mimxrt1062_qspi_C.conf

@@ -0,0 +1,11 @@
+#
+# Copyright 2025 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_HEAP_MEM_POOL_SIZE=81920
+CONFIG_AUDIO_CODEC=y
+CONFIG_DMA_TCD_QUEUE_SIZE=4
+CONFIG_SAMPLE_FREQ=16000
+CONFIG_USE_DMIC=n

samples/drivers/i2s/i2s_codec/boards/mimxrt1060_evk_mimxrt1062_qspi_C.overlay

@@ -0,0 +1,9 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&sai1 {
+	mclk-output;
+};

samples/drivers/i2s/output/boards/mimxrt1060_evk_mimxrt1062_qspi_C.conf

@@ -0,0 +1,2 @@
+# Raise DMA TCD Queue size, as this is required by the I2S SAI driver
+CONFIG_DMA_TCD_QUEUE_SIZE=4