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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0313-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0313-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0313-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch b/target/linux/bcm27xx/patches-5.4/950-0313-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch new file mode 100644 index 0000000000..d36f3eb802 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0313-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch @@ -0,0 +1,36 @@ +From 7542fb08d2726606057c4283b3a454abb195a0f5 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Mon, 23 Sep 2019 09:26:41 +0100 +Subject: [PATCH] kbuild: Allow .dtbo overlays to be built piecemeal + +Before 4.20, it was possible to build an arbitrary overlay by copying +it to arm/boot/dts/overlays/mytest-overlay.dts and running: + + make ARCH=arm overlays/mytest.dtbo + +In 4.20 the .dtb build rules were centralised, requiring the dowstream +.dtbo build rules to be changed. They were, enough to support "make ... +dtbs", but not sufficiently to allow this ad-hoc, one-off building of +individual files. + +Add the missing makefile rule to support this way of building. + +See: https://github.com/raspberrypi/linux/issues/3250 + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + Makefile | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/Makefile ++++ b/Makefile +@@ -1261,6 +1261,9 @@ ifneq ($(dtstree),) + %.dtb: include/config/kernel.release scripts_dtc + $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ + ++%.dtbo: prepare3 scripts_dtc ++ $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ ++ + PHONY += dtbs dtbs_install dtbs_check + dtbs: include/config/kernel.release scripts_dtc + $(Q)$(MAKE) $(build)=$(dtstree) |