[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/drivers/opl4/Makefile b/src/kernel/linux/v4.14/sound/drivers/opl4/Makefile
new file mode 100644
index 0000000..6e86a40
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/drivers/opl4/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for ALSA
+# Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
+#
+
+snd-opl4-lib-objs := opl4_lib.o opl4_mixer.o
+snd-opl4-lib-$(CONFIG_SND_PROC_FS) += opl4_proc.o
+snd-opl4-synth-objs := opl4_seq.o opl4_synth.o yrw801.o
+
+obj-$(CONFIG_SND_OPL4_LIB) += snd-opl4-lib.o
+obj-$(CONFIG_SND_OPL4_LIB_SEQ) += snd-opl4-synth.o