drivers: i2s: add i2s driver for max32 mcu

add necessary build files and i2s driver with tx/rx support

Signed-off-by: Anuj Pathak <[email protected]>

Author: cx-anuj-pathak

drivers/i2s/CMakeLists.txt

@@ -9,6 +9,7 @@ zephyr_library_sources_ifdef(CONFIG_I2S_SAM_SSC		i2s_sam_ssc.c)
 zephyr_library_sources_ifdef(CONFIG_USERSPACE		i2s_handlers.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_STM32		i2s_ll_stm32.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_LITEX		i2s_litex.c)
+zephyr_library_sources_ifdef(CONFIG_I2S_MAX32		i2s_max32.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_MCUX_FLEXCOMM	i2s_mcux_flexcomm.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_NRFX		i2s_nrfx.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_NRF_TDM	i2s_nrf_tdm.c)

drivers/i2s/Kconfig.max32

@@ -0,0 +1,21 @@
+# Copyright (c) 2025 Croxel Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+config I2S_MAX32
+	bool "Analog Devices MAX32 series I2S driver"
+	default y
+	depends on DT_HAS_ADI_MAX32_I2S_ENABLED
+	select DMA
+	help
+	  Enable support for Analog Devices MAX32 series I2S driver.
+
+if I2S_MAX32
+
+config I2S_MAX32_QUEUE_SIZE
+	int "Queue size"
+	default 8
+	help
+	  Size of the Tx/Rx pending block queue. This is the maximum number of
+	  blocks that can be queued for transmission or reception.
+
+endif # I2S_MAX32