[PATCH v2 00/13] Enable building all dtb files

[PATCH v2 00/13] Enable building all dtb files

[Rob Herring]

This series enables building all the dtb files in the kernel mostly 
independent of the kernel config. The option is only dependent on 
COMPILE_TEST, OF, and the new OF_ALL_DTBS options. This ensures that 
allyesconfig builds can build all dtb files although most arches have to 
build "dtbs" target explicitly. Some arches like ARM include dtbs in the 
default target.

Arch/arm-soc maintainers, Please ack and I will take this series via the DT 
tree.

v2:
- Add OF_ALL_DTBS option hidden behind COMPILE_TEST
- Expand to all architectures (with more than 1 dtb)

Rob


Rob Herring (13):
  of: add config option to enable building of all dtbs
  arc: use common make variables for dtb builds
  arc: enable building of all dtbs
  arm: enable building of all dtbs
  arm64: enable building of all dtbs
  h8300: enable building of all dtbs
  metag: use common make variables for dtb builds
  metag: enable building of all dtbs
  mips: enable building of all dtbs
  nios2: use common make variables for dtb builds
  nios2: enable building of all dtbs
  powerpc: enable building of all dtbs
  xtensa: enable building of all dtbs

 arch/arc/Makefile              |  2 +-
 arch/arc/boot/dts/Makefile     |  6 ++++--
 arch/arm/boot/dts/Makefile     |  3 +++
 arch/arm64/boot/dts/Makefile   |  6 ++++++
 arch/h8300/boot/dts/Makefile   |  3 +++
 arch/metag/Makefile            |  2 +-
 arch/metag/boot/dts/Makefile   |  7 +++----
 arch/mips/boot/dts/Makefile    |  3 +++
 arch/nios2/Makefile            | 10 +++++-----
 arch/nios2/boot/Makefile       | 13 +++----------
 arch/nios2/boot/dts/Makefile   |  6 ++++++
 arch/powerpc/Makefile          |  6 ++++++
 arch/powerpc/boot/Makefile     |  5 ++++-
 arch/powerpc/boot/dts/Makefile |  5 +++++
 arch/xtensa/Makefile           |  4 ++++
 arch/xtensa/boot/dts/Makefile  |  7 ++++++-
 drivers/of/Kconfig             | 10 ++++++++++
 17 files changed, 73 insertions(+), 25 deletions(-)
 create mode 100644 arch/nios2/boot/dts/Makefile
 create mode 100644 arch/powerpc/boot/dts/Makefile

-- 
2.1.4

[PATCH v2 07/13] metag: use common make variables for dtb builds

[Rob Herring]

Use dtb-y and always make variables to build dtbs instead of explicit
dtbs rule. This is in preparation to support building all dtbs.

Signed-off-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---
 arch/metag/Makefile          | 2 +-
 arch/metag/boot/dts/Makefile | 6 +-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/metag/Makefile b/arch/metag/Makefile
index 9739857..033a582 100644
--- a/arch/metag/Makefile
+++ b/arch/metag/Makefile
@@ -72,7 +72,7 @@ $(boot_targets): vmlinux
 	$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
 
 dtbs: scripts
-	$(Q)$(MAKE) $(build)=$(boot)/dts dtbs
+	$(Q)$(MAKE) $(build)=$(boot)/dts
 
 archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
diff --git a/arch/metag/boot/dts/Makefile b/arch/metag/boot/dts/Makefile
index 72c1218..2533c38 100644
--- a/arch/metag/boot/dts/Makefile
+++ b/arch/metag/boot/dts/Makefile
@@ -12,11 +12,7 @@ endif
 dtb-$(CONFIG_METAG_BUILTIN_DTB)	+= $(builtindtb-y).dtb
 obj-$(CONFIG_METAG_BUILTIN_DTB)	+= $(builtindtb-y).dtb.o
 
-targets	+= dtbs
-targets	+= $(dtb-y)
-
 .SECONDARY: $(obj)/$(builtindtb-y).dtb.S
 
-dtbs: $(addprefix $(obj)/, $(dtb-y))
-
+always += $(dtb-y)
 clean-files += *.dtb *.dtb.S
-- 
2.1.4

[PATCH v2 08/13] metag: enable building of all dtbs

[Rob Herring]

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-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---
 arch/metag/boot/dts/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/metag/boot/dts/Makefile b/arch/metag/boot/dts/Makefile
index 2533c38..097c6da 100644
--- a/arch/metag/boot/dts/Makefile
+++ b/arch/metag/boot/dts/Makefile
@@ -12,6 +12,9 @@ endif
 dtb-$(CONFIG_METAG_BUILTIN_DTB)	+= $(builtindtb-y).dtb
 obj-$(CONFIG_METAG_BUILTIN_DTB)	+= $(builtindtb-y).dtb.o
 
+dtstree		:= $(srctree)/$(src)
+dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
+
 .SECONDARY: $(obj)/$(builtindtb-y).dtb.S
 
 always += $(dtb-y)
-- 
2.1.4