Added Maxim DSM audio component

Maxim DSM(Dynamic Speaker Management) audio component is added.
This component takes stereo input + 4 channel IV feedback.

Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>

Author: Ryan Lee

src/audio/CMakeLists.txt

@@ -65,6 +65,9 @@ if(NOT CONFIG_LIBRARY)
 			smart_amp_test.c
 		)
 	endif()
+	if(CONFIG_MAXIM_DSM)
+		add_subdirectory(smart_amp)
+	endif()
 	add_subdirectory(pcm_converter)
 	if(CONFIG_COMP_ASRC)
 		add_subdirectory(asrc)

src/audio/Kconfig

@@ -129,6 +129,18 @@ config COMP_TEST_SMART_AMP
 	help
 	  Select for test smart amplifier component
 
+config MAXIM_DSM
+	depends on CAVS && !CAVS_VERSION_1_5
+	bool "Maxim DSM component"
+	default y
+	help
+	  Select for Maxim DSM(Dynamic Speaker Management) component.
+	  This component protect the speaker from overheating and
+	  excursion violation. This consists of two parts which are
+	  feedforward processing block running on playback thread and
+	  feedback processing block running on capture thread with
+	  amp current and voltage feedback.
+
 config COMP_TEST_KEYPHRASE
 	bool "KEYPHRASE_TEST component"
 	default y

src/audio/smart_amp/CMakeLists.txt

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: BSD-3-Clause
+
+add_local_sources(sof smart_amp_maxim_dsm.c smart_amp.c smart_amp_generic.c)