arch/arm64/boot/dts/amd/Makefile - arm/linux - Git at Google

 dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive.dtb \
 			amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb \
 			husky.dtb

 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
 clean-files	:= *.dtb
	dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive.dtb \
	amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb \
	husky.dtb

	always := $(dtb-y)
	subdir-y := $(dts-dirs)
	clean-files := *.dtb