MIPS: migrate to generic rule for built-in DTBs

Commit 654102df2a ("kbuild: add generic support for built-in boot
DTBs") introduced generic support for built-in DTBs.

Select GENERIC_BUILTIN_DTB and BUILTIN_DTB_ALL when the built-in DTB
support is enabled.

DTBs compiled under arch/mips/boot/dts/ will be wrapped by the generic
rule in scripts/Makefile.vmlinux.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/Kconfig

@@ -29,10 +29,12 @@ config MIPS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_WANT_LD_ORPHAN_WARN
 	select BUILDTIME_TABLE_SORT
+	select BUILTIN_DTB_ALL if BUILTIN_DTB
 	select CLONE_BACKWARDS
 	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
 	select CPU_PM if CPU_IDLE || SUSPEND
 	select GENERIC_ATOMIC64 if !64BIT
+	select GENERIC_BUILTIN_DTB if BUILTIN_DTB
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_CPU_AUTOPROBE
 	select GENERIC_GETTIMEOFDAY

arch/mips/Makefile

@@ -423,9 +423,6 @@ endif
 
 CLEAN_FILES += vmlinux.32 vmlinux.64
 
-# device-trees
-core-y += arch/mips/boot/dts/
-
 archprepare:
 ifdef CONFIG_MIPS32_N32
 	@$(kecho) '  Checking missing-syscalls for N32'

arch/mips/boot/dts/Makefile

@@ -16,5 +16,3 @@ subdir-$(CONFIG_ATH79)			+= qca
 subdir-$(CONFIG_RALINK)			+= ralink
 subdir-$(CONFIG_MACH_REALTEK_RTL)	+= realtek
 subdir-$(CONFIG_FIT_IMAGE_FDT_XILFPGA)	+= xilfpga
-
-obj-$(CONFIG_BUILTIN_DTB)	:= $(addsuffix /, $(subdir-y))

arch/mips/boot/dts/brcm/Makefile

@@ -33,5 +33,3 @@ dtb-$(CONFIG_DT_NONE) += \
 	bcm97420c.dtb \
 	bcm97425svmb.dtb \
 	bcm97435svmb.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/cavium-octeon/Makefile

@@ -1,4 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_CAVIUM_OCTEON_SOC)	+= octeon_3xxx.dtb octeon_68xx.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/ingenic/Makefile

@@ -5,5 +5,3 @@ dtb-$(CONFIG_JZ4770_GCW0)	+= gcw0.dtb
 dtb-$(CONFIG_JZ4780_CI20)	+= ci20.dtb
 dtb-$(CONFIG_X1000_CU1000_NEO)	+= cu1000-neo.dtb
 dtb-$(CONFIG_X1830_CU1830_NEO)	+= cu1830-neo.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/lantiq/Makefile

@@ -1,4 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_DT_EASY50712)	+= danube_easy50712.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/loongson/Makefile

@@ -5,5 +5,3 @@ dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_4core_rs780e.dtb
 dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_8core_rs780e.dtb
 dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64g_4core_ls7a.dtb
 dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64v_4core_virtio.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/mscc/Makefile

@@ -8,6 +8,3 @@ dtb-$(CONFIG_SOC_VCOREIII)	+= \
 	ocelot_pcb123.dtb \
 	serval_pcb105.dtb \
 	serval_pcb106.dtb
-
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/mti/Makefile

@@ -1,5 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_MIPS_MALTA)	+= malta.dtb
 dtb-$(CONFIG_LEGACY_BOARD_SEAD3)	+= sead3.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/pic32/Makefile

@@ -3,5 +3,3 @@ dtb-$(CONFIG_DTB_PIC32_MZDA_SK)		+= pic32mzda_sk.dtb
 
 dtb-$(CONFIG_DTB_PIC32_NONE)		+= \
 					pic32mzda_sk.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))

arch/mips/boot/dts/ralink/Makefile

@@ -10,5 +10,3 @@ dtb-$(CONFIG_SOC_MT7621) += \
 	mt7621-gnubee-gb-pc1.dtb \
 	mt7621-gnubee-gb-pc2.dtb \
 	mt7621-tplink-hc220-g5-v1.dtb
-
-obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))