[yocto] [meta-raspberrypi][PATCH v4 4/5] linux-raspberrypi_4.4.inc: support for .dtbo files for dtb overlays

[Andrei Gherzan]

On Tue, May 31, 2016 at 04:46:34AM +0800, Herve Jourdain wrote:
> Kernel 4.4.6+ on RaspberryPi support .dtbo files for overlays, instead of .dtb.
> Patch the kernel, which has faulty rules to generate .dtbo the way yocto does
>

You need an Upstream status here:
http://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines
I think this would be interesting to send upstream too.

> Signed-off-by: Herve Jourdain <herve.jourdain at neuf.fr>
> ---
>  .../0001-fix-dtbo-rules.patch                      | 27 ++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
>  create mode 100644 recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch
>
> diff --git a/recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch b/recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch
> new file mode 100644
> index 0000000..ef04a72
> --- /dev/null
> +++ b/recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch
> @@ -0,0 +1,27 @@
> +diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> +index a2e7cf7..673c1cb 100644
> +--- a/arch/arm/Makefile
> ++++ b/arch/arm/Makefile
> +@@ -333,6 +333,8 @@ $(INSTALL_TARGETS):
> +
> + %.dtb: | scripts
> + 	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
> ++%.dtbo: | scripts
x> ++	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
> +
> + PHONY += dtbs dtbs_install
> +
> +diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
> +index 3079c4f..6cc3766 100644
> +--- a/scripts/Makefile.lib
> ++++ b/scripts/Makefile.lib
> +@@ -293,7 +293,8 @@ $(obj)/%.dtb: $(src)/%.dts FORCE
> + 	$(call if_changed_dep,dtc)
> +
> + quiet_cmd_dtco = DTCO    $@
> +-cmd_dtco = $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
> ++cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
> ++	$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
> + 	$(objtree)/scripts/dtc/dtc -@ -H epapr -O dtb -o $@ -b 0 \
> + 		-i $(dir $<) $(DTC_FLAGS) \
> + 		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
> --
> 2.7.4
>
> --
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--
Andrei Gherzan
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