sound/aoa/core/Makefile - third_party/linux - Git at Google

 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SND_AOA) += snd-aoa.o
 snd-aoa-objs := core.o \
 		alsa.o \
 		gpio-pmf.o \
 		gpio-feature.o
	# SPDX-License-Identifier: GPL-2.0
	obj-$(CONFIG_SND_AOA) += snd-aoa.o
	snd-aoa-objs := core.o \
	alsa.o \
	gpio-pmf.o \
	gpio-feature.o