sound/soc/mid-x86/Makefile - kernel/windcharger - Git at Google

 snd-soc-sst-platform-objs := sst_platform.o
 snd-soc-mfld-machine-objs := mfld_machine.o

 obj-$(CONFIG_SND_SST_PLATFORM) += snd-soc-sst-platform.o
 obj-$(CONFIG_SND_MFLD_MACHINE) += snd-soc-mfld-machine.o
	snd-soc-sst-platform-objs := sst_platform.o
	snd-soc-mfld-machine-objs := mfld_machine.o

	obj-$(CONFIG_SND_SST_PLATFORM) += snd-soc-sst-platform.o
	obj-$(CONFIG_SND_MFLD_MACHINE) += snd-soc-mfld-machine.o