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scripts: Allow QCOM devicetree overlays to be properly combined

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Apply the same logic that Qualcomm uses on their 5.15 kernel_platform
build scripts, as seen in commit e10f5dc.

As a sidenote, passing DTC_FLAGS externally is not an option since it
overrides any other flags set by the kernel makefile.
This commit is contained in:
Bruno Martins 2023-09-15 12:54:43 +01:00 committed by David Wronek
parent 5780d3b53b
commit 976e70b34a
1 changed files with 5 additions and 0 deletions
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5
scripts/Makefile.lib
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@ -365,8 +365,13 @@ endif
DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
ifeq ($(CONFIG_ARCH_QCOM),y)
# Forcibly set -@ for all DTB[O]s in case of QCOM targets
DTC_FLAGS += -@
else
# Set -@ if the target is a base DTB that overlay is applied onto
DTC_FLAGS += $(if $(filter $(patsubst $(obj)/%,%,$@), $(base-dtb-y)), -@)
endif
# Generate an assembly file to wrap the output of the device tree compiler
quiet_cmd_dt_S_dtb= DTB $@