linux/linux.mk: custom dts path - build dtb only from *.dts files
When building device tree blobs from custom *.dts files, buildroot initializes KERNEL_DTS_NAME variable from all given file names. This causes that user can't provide one *.dts file and some other *.dtsi files as dependencies. Problem is fixed by adding filter for initializing KERNEL_DTS_NAME variable with *.dts files only. All user provided files are copied into kernel source tree, but only file names suffixed with *.dts are used for building appropriate *.dtb files. [Thomas: add comment into the code to explain why we are filtering .dts files only.] Signed-off-by: Ivo Slanina <ivo.slanina@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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@ -68,7 +68,11 @@ LINUX_VERSION_PROBED = $(shell $(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-
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ifeq ($(BR2_LINUX_KERNEL_USE_INTREE_DTS),y)
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KERNEL_DTS_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_INTREE_DTS_NAME))
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else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),y)
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KERNEL_DTS_NAME = $(basename $(notdir $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH))))
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# We keep only the .dts files, so that the user can specify both .dts
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# and .dtsi files in BR2_LINUX_KERNEL_CUSTOM_DTS_PATH. Both will be
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# copied to arch/<arch>/boot/dts, but only the .dts files will
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# actually be generated as .dtb.
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KERNEL_DTS_NAME = $(basename $(filter %.dts,$(notdir $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH)))))
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endif
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ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT)$(KERNEL_DTS_NAME),y)
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