import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch

From 13c8784da3dbd977f64cec740eba775b6fab11c2 Mon Sep 17 00:00:00 2001
From: Herve Jourdain <herve.jourdain@neuf.fr>
Date: Fri, 20 May 2016 16:02:23 +0800
Subject: [yocto][meta-raspberrypi][PATCH v4 4/5] linux-raspberrypi_4.4.inc:
 support for .dtbo files for dtb overlays

Upstream-Status: Pending

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

Signed-off-by: Herve Jourdain <herve.jourdain@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/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
+	$(Q)$(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) ; \