arc: enable building of all dtbs

Enable building all dtb files when CONFIG_OF_ALL_DTBS is enabled. The dtbs
are not really dependent on a platform being enabled or any other kernel
config, so for testing coverage it is convenient to build all of the dtbs.
This builds all dts files in the tree, not just targets listed.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile
index e8e46f941dd5e41da550c676a58ce9ed6f230d78..a09f11b71e663d59f5f636339c0fb24704563b34 100644 (file)
--- a/arch/arc/boot/dts/Makefile
+++ b/arch/arc/boot/dts/Makefile
@@ -10,6 +10,8 @@ dtb-y := $(builtindtb-y).dtb
 
 .SECONDARY: $(obj)/$(builtindtb-y).dtb.S
 
+dtstree                := $(srctree)/$(src)
+dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
 
 always := $(dtb-y)
 clean-files := *.dtb  *.dtb.S