drivers: audio: Add NXP MICFIL driver

Add NXP MICFIL driver base DMIC device driver model.

Signed-off-by: Zhaoxiang Jin <[email protected]>

Author: ZhaoxiangJin

drivers/audio/CMakeLists.txt

@@ -17,3 +17,4 @@ zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_PCM1681 pcm1681.c)
 zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_MAX98091 max98091.c)
 zephyr_library_sources_ifdef(CONFIG_AUDIO_DMIC_AMBIQ_PDM dmic_ambiq_pdm.c)
 zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_DA7212 da7212.c)
+zephyr_library_sources_ifdef(CONFIG_AUDIO_DMIC_NXP_MICFIL dmic_nxp_micfil.c)

drivers/audio/Kconfig

@@ -68,6 +68,7 @@ source "drivers/audio/Kconfig.mpxxdtyy"
 source "drivers/audio/Kconfig.dmic_pdm_nrfx"
 source "drivers/audio/Kconfig.dmic_mcux"
 source "drivers/audio/Kconfig.dmic_ambiq_pdm"
+source "drivers/audio/Kconfig.dmic_nxp_micfil"
 
 endif # AUDIO_DMIC
 

drivers/audio/Kconfig.dmic_nxp_micfil

@@ -0,0 +1,22 @@
+# Copyright 2025 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+
+config AUDIO_DMIC_NXP_MICFIL
+	bool "NXP MICFIL driver"
+	default y
+	depends on DT_HAS_NXP_MICFIL_ENABLED
+	select HAS_MCUX
+	select CLOCK_CONTROL
+	help
+	  Enable NXP MICFIL driver.
+
+if AUDIO_DMIC_NXP_MICFIL
+
+config DMIC_NXP_MICFIL_QUEUE_SIZE
+	int "Message queue depth"
+	default 4
+	help
+	  Depth of the message queue used to pass filled buffers to the app.
+
+endif # AUDIO_DMIC_NXP_MICFIL