From: Rob Herring <robh@xxxxxxxxxx> Add a generic rule to apply fdtoverlay in Makefile.lib, so every platform doesn't need to carry the complex rule. The platform's Makefile only needs to have this now: DTC_FLAGS_foo_base += -@ foo-dtbs := foo_base.dtb foo_overlay1.dtbo foo_overlay2.dtbo dtb-y := foo.dtb We don't want to run schema checks on foo.dtb (as foo.dts doesn't exist) and the Makefile is updated accordingly. Signed-off-by: Rob Herring <robh@xxxxxxxxxx> Co-developed-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx> --- scripts/Makefile.lib | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index fa0db696120f..3c450bfec015 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -66,6 +66,10 @@ multi-used := $(multi-used-y) $(multi-used-m) real-obj-y := $(foreach m, $(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) real-obj-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m))) +# List all dtbs to be generated by fdtoverlay +overlay-y := $(foreach m,$(dtb-y), $(if $(strip $($(m:.dtb=-dtbs))),$(m),)) +overlay-$(CONFIG_OF_ALL_DTBS) += $(foreach m,$(dtb-), $(if $(strip $($(m:.dtb=-dtbs))),$(m),)) + always-y += $(always-m) # hostprogs-always-y += foo @@ -80,14 +84,21 @@ userprogs += $(userprogs-always-y) $(userprogs-always-m) always-y += $(userprogs-always-y) $(userprogs-always-m) # DTB +# Add base dtb and overlay dtbo +dtb-y += $(foreach m,$(overlay-y), $($(m:.dtb=-dtbs))) + # If CONFIG_OF_ALL_DTBS is enabled, all DT blobs are built dtb-$(CONFIG_OF_ALL_DTBS) += $(dtb-) extra-y += $(dtb-y) ifneq ($(CHECK_DTBS),) -extra-y += $(patsubst %.dtb,%.dt.yaml, $(dtb-y)) -extra-y += $(patsubst %.dtbo,%.dt.yaml, $(dtb-y)) +# Don't run schema checks for dtbs created by fdtoverlay as they don't +# have corresponding dts files. +dt-yaml-y := $(filter-out $(overlay-y),$(dtb-y)) + +extra-y += $(patsubst %.dtb,%.dt.yaml, $(dt-yaml-y)) +extra-y += $(patsubst %.dtbo,%.dt.yaml, $(dt-yaml-y)) endif # Add subdir path @@ -331,6 +342,15 @@ $(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE $(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE $(call if_changed_dep,dtc) +overlay-y := $(addprefix $(obj)/, $(overlay-y)) + +quiet_cmd_fdtoverlay = DTOVL $@ + cmd_fdtoverlay = $(objtree)/scripts/dtc/fdtoverlay -o $@ -i $(real-prereqs) + +$(overlay-y): FORCE + $(call if_changed,fdtoverlay) +$(call multi_depend, $(overlay-y), .dtb, -dtbs) + DT_CHECKER ?= dt-validate DT_BINDING_DIR := Documentation/devicetree/bindings # DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile -- 2.25.0.rc1.19.g042ed3e048af
