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Subject[PATCH 3/4] kbuild: Support flat DTBs install
In preparation to move Arm .dts files into sub-directories grouped
by vendor/family, the current flat tree of DTBs generated by
dtbs_install needs to be maintained. Moving the installed DTBs to
sub-directories would break various consumers using 'make dtbs_install'.

This is a NOP until sub-directories are introduced.

Signed-off-by: Rob Herring <robh@kernel.org>
---
arch/arm/Kconfig | 3 +++
scripts/Makefile.dtbinst | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e24a9820e12f..7a3b1176f19d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1463,6 +1463,9 @@ config USE_OF
help
Include support for flattened device tree machine descriptions.

+config ARCH_WANT_FLAT_DTB_INSTALL
+ def_bool y
+
config ATAGS
bool "Support for the traditional ATAGS boot data passing"
default y
diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index 2ab936e4179d..4405d5b67578 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -34,6 +34,6 @@ $(dst)/%.dtbo: $(obj)/%.dtbo

PHONY += $(subdirs)
$(subdirs):
- $(Q)$(MAKE) $(dtbinst)=$@ dst=$(patsubst $(obj)/%,$(dst)/%,$@)
+ $(Q)$(MAKE) $(dtbinst)=$@ dst=$(if $(CONFIG_ARCH_WANT_FLAT_DTB_INSTALL),$(dst),$(patsubst $(obj)/%,$(dst)/%,$@))

.PHONY: $(PHONY)
--
2.39.2

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